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SERVICE MANUAL - Page de test

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1. 2 20msn 50 volts div Drain of 01 5 5msn div 20 volts div dedu Collector of TDO1 6 20usn 2 volts div D50 pin 4 9 10 usn 2 volts div I 01 pin 34 10 20 usn 0 5 volt div A WT 01 pin 46 I V01 33 3 10 usn div 250 volt div 4 5 msn div 0 5 volt div Collector of TDO2 7 20usn 2 volts div I 01 pin 22 8 20usn 2 volts div 01 48 11 20usn 1 volt div A I 01 pin 40 01 47
2. SISVHdW3 30 od isfnfav 13A31 SISVHdWa3 3d 3ALLdvav WVOIN 251 154 92 16 9 Chassis Service Manual 6 2 1 LEVEL SCALING All input channels to the digital crossbar switch except for the loudspeaker feedback path are equipped with a level adjust facility to change the signal level in a range of 15 It is recommended to scale all input channels to be 15 dB below full scale 15 dB full scale under nominal con ditions 6 2 2 FM AM PATH A high pass filter suppresses DC offsets from the FM demodulator due to carrier frequency offsets and sup plies the monitor peak function with DC values and an unfiltered signal e g for the purpose of carrier detection The de emphasis function offers fixed settings for the sup ported standards 50 us 60 us and 75 us An adaptive de emphasis is available for Wegener Panda 1 encoded programs A matrix performs the dematrixing of the A2 stereo dual and mono signals 6 2 3 MONITOR This function provides data words from a number of loca tions of the signal processing paths to the inter face 2 data bytes Signal sources include the FM demodulator outputs most inputs to the digital crossbar switch and the outputs of the ADC Source selection and data read out is performed via the Optionally the peak value can be measured instead of simply takin
3. 15 adaptive 15 adaptive 1 For other satellite systems frequencies of for example 5 80 6 60 or 6 65 MHz can also be received A de empha sis of 60 us or in accordance with J17 is available 2 m st d mono or stereo or dual language sound 3 Adaptive de emphasis compatible to transmitter specification 3 ORDERING INFORMATION TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA9875A SDIP64 plastic shrink dual in line package 64 leads 750 mil 507274 1 92 16 9 Chassis Service Manual Block Diagram ADDR1 INPUT SWITCH SUPPLY ADDR2 AGC ADC SIF FM AN DEMODULATION IDENTIFICATION NAM A2 DECODER amp 9 SAT DECODER SYSCLK ANALOG CROSSBAR SWITCH PEAK LEVEL DETECTION ADJUST 5011 am DIGITAL 0 SELECT SCK WS 002 8801 DIGITAL Vespa SUPPLY TDA9870A AUDIO PROCESSING SUPPLY SCART DAC ADC TESTI TEST2 MOL MOR AUXOL 92 16 9 Chassis Service Manual SYMBOL DESCRIPTION internal connected note 1 internal connected note 1 first I C bus slave address modifier l C bus clock 1 0 data supply supply ground 1 analog front end circuitry positive power supply voltage 1 decoupling analog front end circuitry resistor for reference current generator analog front end circuitry 9 ny 6 wy first general purpose 1
4. 350 V Gate drain charge Qoa 15 3 Ip 7 3 350 Total gate charge Qy 27 Ip 7 3 350 V Ves 0 to 10 V Reverse Diode Inverse diode continuous forward current 7 3 Tc 25 Inverse diode direct current pulsed lsm 14 6 Tc 25 Inverse diode forward voltage Vsp 1 1 2 V Vas 0 V Ip 73A Reverse recovery time its 750 ns Vp 350 V Ig dig dt 100 A us Reverse recovery charge Qr 4 9 uC Vp 350 Ig dig dt 100 A us 92 16 9 Chassis Service Manual PT 92 DOLBY BOARD PT 92 SECAM L 92 16 9 Chassis Service Manual 0007166 01 veld 8 7528 AOS 0586901 NILX4 HOLIMS m Lal 9 3598 AS 9 5899 S Z 4 lt s 4001 3400 zi 2011 gt 2019 9010 986609 338 lt 011 anv x3 ZN AATA TATATATA 9014 LMS AOS 7019 301 E AOS 9618 1012 INGOW ONON 1 1 WVO3S 06 14 92 16 9 Chassis Service Manual PT 92 DOLBY MODUL SAA7710T 1401 c 29 m c 240071 0 eLnoviva 12 36 86MHz 99 019 92 16 9 Chassis Service Manual OSCILLOSCOPE SHAPES 1 5usn div 100 volt div
5. 92 16 9 Chassis Service Manual 88 L 0901 98 HOHdOHALS VAON 6 91 28 SE 3901 3004 v 300 NYOH 61X6 MANOS H3M09 HOVE ZE Y3M09 MOVE 18 NIYIN 0 994 NIVIN 67 G 6X6 MINIS TIVY SISSYHI 82 1331 IVY SISSYHI ZZ LHOIY SISSVHO 92 9NIHdS YACTOH AV 52 59 6 MANOS 894 AV vc 99 AV Z 2 AV ZZ 1X6 2 MIHIS AV LZ H3G10H 02 Y3070H 99 440 NO 64 824 440 NO 84 330 1 QNIYdS 0118 340 91 NOLN 330 NO S 6 9 6 99 310IN3U Y4 904 310IN3U 81 6 6 5 89d NOLNGILINW ZL 100 L4 100 MOGNIM 1 01 G 6X6 2 M3H2S H3133ML 6 U3133ML 8 1X6 MANOS 8 Z u3xV3dS 9 99 199 9 0rX0L M3H2S 199 6 91 ZE v 19391 199 190 6 91 Z LANIGVO 1 100 6 91 1 ALD VINOUD 100 6 91 92 16 9 Chassis Service Manual PT92 110 STEREO CHASSIS 2 TDA2616 UV1316 PLL C Tuner Sound Sound Processor Amplifier Scars _ AGC SAV Sub Filter TDA61070 Triple RGB Sound Output Amplifier Trap TDA935X 6X 8X TDA8351 DC Vertical Amplifier PAL SECAM NTSC TV Signal Proc Externals Teletext Decoder Beam 0 UR u Controller Current RGB
6. coupled erica output bide 120 Hz The circuit provides a DC driven vertical deflec circuit NE tion output circuit operating as a highly efficient class Vertical flyback switch G system Guard circuit Protection against short circuit of the output pins 7 and 4 short circuit of the output pins to Vp Temperature thermal protection High EMC immunity because of common mode inputs quard signal in zoom mode QUICK REFERENCE DATA Symbol Parameter Conditions DC supply supply voltage quiescent supply current Vertical circuit output current peak to peak value differential input current peak to peak value Vaiff p p differential input voltage peak to peak value Flyback switch peak output current flyback supply voltage Thermal data in accordance with IEC 747 1 storage temperature Tamb operating ambient temperature virtual junction temperature Note 1 A flyback supply voltage of gt 50 V up to 60 V is allowed in application A 220 nF capacitor in series with a 22Q resistor dependent on I and the inductance of the coil has to be connected between 7 and ground The decoupling capacitor of VEg has to be connected between pin 6 and pin 3 This supply voltage line must have a resistance of 33 Q see application circuit Fig G 92 16 9 Chassis Service Manual ORDERING INFORMATION
7. SPBO N60S5 MAXIMUM RATINGS at 25 unless otherwise specified P T0263 3 2 07N60S5 067040 54185 Parameter Symbol Value Unit Continuous drain current Ip A T 25 C 7 3 100 4 6 Pulsed drain current tp 1ms ID puls 14 6 25 Avalanche energy single pulse Eas 230 mJ Ip 7 3A 50V Reg 250 Periodic avalanche energy only limited by Timax Reverse diode kV us ls 7 3A Vps lt Vpss 4 0 100 A us Tjmax 150 Gate source voltage Ves 20 V Power dissipation Ptot 83 W Tg 25 C Operating and storage temperature Tj Tstg 55 150 C 92 16 9 Chassis Service Manual ELECTRICAL CHARACTERISTICS Parameter Val 8 at T 25 C unless otherwise specified Symbol min typ max Unit Thermal Characteristics Thermal resistance junction case 1 5 KW Thermal resistance junction ambient Rinsa 62 Leaded and through hole packages SMD version device on PCB RthJA min footprint 62 Q 6 cooling 35 Static Characteristics Drain source breakdown voltage 055 600 V Ves OV Ip 0 25 mA Gate threshold voltage Vas Vps Vas th 3 5 4 5 9 5 Ip 350 pA T 25 Zero gate voltage drain current Vps Vpss Ipss Ves Tj 25 0 5 1 Ves T 150 C
8. output leakage current 3 state outputs Vg 0 or Vppy voltage pin type 13 and 02 Rpu VDDX int internal pull up resistor to VDDX pin type 14 Rpd VSSD int internal pull down resistor to Vesp pin type 12 Crystal oscillator Vppx Note positive supply voltage crystal oscillator 1 Vppx VDD XTAL 92 16 9 Chassis Service Manual BUSO8AF Silicon Diffused Power Transistor GENERAL DESCRIPTION High voltage high speed switching npn transistor in a fully isolated SOT199 envelope primarily for use in horizontal deflection circuits of colour television receivers QUICK REFERENCE DATA Parameter Conditions collector emitter voltage peak value collector emitter voltage open base collector current DC collector current peak value Ptot total power dissipation 25 VCEsat collector emitter saturation voltage 4 5 IB 1 6 Csat collector saturation current f 16kHz tf fall time lcsat 4 5 t 16kHz PINNING SOT199 PIN CONFIGURATION SYMBOL Pin Description 1 base 2 collector b 3 emitter case isolated e LIMITING VALUES Limiting values in accordance with the Absolute Maximum Rating System IEC 134 Parameter Conditions collector emitter voltage peak value collector emitter voltage open base collector current DC collector current peak value Base
9. 10 4 5V tot 10 Voltage gain Noise output voltage r m s value Rs 5Q f 1 kHz 00 f 500 kHz 5 kHz Channel separation Rs 00 f 1 kHz input impedance at Rs input bias current Note 1 Output power is measured directly at the output pins of the IC It is shown as a function of the supply voltage in Fig 2 BTL application and Fig 3 stereo application 92 16 9 Chassis Service Manual TDA6107Q Triple video output amplifier FEATURES Typical bandwidth of 5 5 MHz for an output signal of 60 V peak to peak value High slew rate of 900 V us No external components required Very simple application Single supply voltage of 200 V Internal reference voltage of 2 5 V Fixed gain of 50 Black Current Stabilization BCS circuit Thermal protection ORDERING INFORMATION TYPE GENERAL DESCRIPTION The TDA6107Q includes three video output amplifiers in one plastic DIL bent SIL 9 pin medium power DBS9MPF package SOT111 1 using high voltage DMOS technology and is intended to drive the three cathodes of a colour CRT directly To obtain maximum performance the amplifier should be used with black current control PACKAGE NUMBER NAME DESCRIPTION VERSION TDA6107Q DBS9MPF plastic DIL bent SIL medium power package with fin 9 leads 807111 1 Block Diagram MIRROR 1 19 CURRENT SOURCE THERMAL PROTECTION C
10. 3 5 x line frequency Stereo identification frequency 117 5 Hz line frequency 133 149 9 Hz line frequency 105 Dual identification frequency 274 1Hz line frequency 57 276 0 Hz line frequency 57 AM modulation depth 50 2 1 2 2 CARRIER SYSTEMS WITH NICAM Table 3 NICAM STANDARD FREQUENCY MHz MODULATION DEVIATION kHz NOM MAX INDEX NOM MAX 50 DE EMPHASIS Notes 94 100 1 See EBU specification or equivalent specification 2 Not yet defined ROLL OFF NICAM 96 CODING 92 16 9 Chassis Service Manual 2 1 3 SATELLITE SYSTEMS An important for satellite TV reception is the Astra specification The TDA9875A is suited for the reception of Astra and other satellite signals Table 4 FM satellite sound CARRIER MODULATION MAXIMUM BANDWIDTH CARRIER TYPE FREQUENCY INDEX FM DEVIATION MODULATION DE EMPHASIS MHz kHz kHz us 6 50 15 50 7 02 7 20 15 adaptive 7 38 7 56 15 adaptive 7 74 7 92 15 adaptive 8 10 8 28 15 adaptive Notes 1 For other satellite systems frequencies of for example 5 80 6 60 or 6 65 MHz can also be received A de emphasis of 60 us or in accordance with J17 is available 2 m st d mono or stereo or dual language sound 3 Adaptive de emphasis compatible to transmitter specification 3 ORDERING INFORMATION TYPE NUMBER PA
11. be connected to Vos 92 16 9 Chassis Service Manual Pin configuration SDA VSSM VpEC1 lref 1 SIF2 SIF1 ADDR2 Vssp1 1 5504 XTALI XTALO P2 SYSCLK SCK WS 5002 5001 5012 011 TESTI MONOIN TEST2 EXTIR EXTIL E o a gt a lt co o lt 92 16 9 Chassis Service Manual FUNCTIONAL DESCRIPTION Description of the demodulator and decodersection 6 1 1 SIF INPUT Two input pins are provided SIF1 e g for terrestrial TV and SIF2 e g for a satellite tuner For higher SIF signal levels the SIF input can be attenuated with an internal switchable 10 dB resistor divider As no specific filters are integrated both inputs have the same specification giv ing flexibility in application The selected signal is passed through an AGC circuit and then digitized by an 8 bit ADC operating at 24 576 MHz 6 1 2 AGC The gain of the AGC amplifier is controlled from the ADC output by means of a digital control loop employing hysteresis The AGC has a fast attack behaviour to prevent ADC overloads and a slow decay behaviour to prevent AGC oscillations For AM demodulation the AGC must be switched off When switched off the control loop is reset and fixed gain settings can be chosen see table
12. external audio input QSS intercarrier out AM audio output non controlled EHTO EHT overvoltage protection input PLLIF IF PLL loop filter IFVO SVO IF video output selected CVBS output VP1 main supply voltage TV processor 8 V CVBSINT internal CVBS input 92 16 9 Chassis Service Manual PINNING SYMBOL PIN DESCRIPTION GND1 41 ground 1 for TV processor CVBS Y 42 external CVBS Y input CHROMA 43 chrominance input SVHS AUDOUT 44 audio output AM audio output volume controlled INSSW2 45 2 RGB YUV insertion input R2 VIN 46 2 R input V R Y input G2 YIN 47 2 G input Y input B2 UIN 48 2 B input U B Y input BCLIN 49 beam current limiter input V guard input BLKIN 50 black current input RO 51 Red output GO 52 Green output BO 53 Blue output VDDA 54 analog supply of Teletext decoder and digital supply of TV processor 3 3 V VPE 55 Programming Voltage VDDC 56 digital supply to core OSCGND 57 oscillator ground supply XTALIN 58 crystal oscillator input XTALOUT 59 crystal oscillator output RESET 60 reset VDDP 61 digital supply to periphery 3 3 V P1 0 INT 1 62 port 1 0 or external interrupt 1 input 1 1 0 63 1 1 or Counter Timer 0 input P1 2 INTO 64 port 1 2 or external interrupt 0 input Note 1 The function of p
13. 6 Measured with Vripple 200 mV p p at 70 Hz superimposed on supply voltage Vp 7 Dependent on value of AGC capacitor 92 16 9 Chassis Service Manual SAA7710T Dolby Pro Logic Surround Incredible Sound FEATURES ncredible sound functions e Two stereo digital input channels 5 band parametric equalizer on main channels left cent re right fs 32 kHz Tone control bass treble on all four output channels fs Three stereo C bus digital output channels mode control 44 1 Up to 45 ms on chip delay line fs 44 1 kHz Optional clock divider for crystal oscillator Package SO32L GENERAL DESCRIPTION Operating supply voltage range 4 5 to 5 5 V This data sheet describes the 104 ROM code version of the SAA7710T chip The SAA7710T chip is a high quality audio performance digital add on processor for digital so und systems It provides all the necessary features for Functions 4 channel active surround 20 Hz to 20 kHz maximum 1 2fs complete Dolby Pro Logic surround sound on chip Adaptive matrix In addition to the Dolby Pro Logic surround function this 7 kHz low pass filters device also incorporates a 5 band parametric equalizer a tone control section and a volume control Instead of Dolby Pro Logic surround the Hall matrix surround and Incredible sound functions can be used together with the Noise sequencer equalizer or tone c
14. Vpp 0 5 V type 4 mA DC Vpp supply current per pin DC Vss supply current per pin ESD sensitivity for all pins human body model 100 pF 1500 Q machine model all pins except pin 05 200 pF 2 5 pH 0 Q machine model pin 05 200 pF 2 5 uH 0 Q latch up protection CIC spec test method total power dissipation operating ambient temperature storage temperature THERMAL CHARACTERISTICS Parameter Value Unit thermal resistance from junction to ambient in free air 57 K W 92 16 9 Chassis Service Manual DC CHARACTERISTICS Vpp1 Vpp2 Vppa Vpp XTAL 4 5 to 5 5 V Tamp 40 to 85 C note 1 unless otherwise specified Symbol Parameter Conditions VpDtot total DC supply voltage IDD tot total DC supply current DSP frequency 18 MHz maximum activity DSP Ptot total power dissipation DSP frequency 18 MHz maximum activity DSP VIH HIGH level input voltage all digital inputs and 1 05 pin types 11 12 and 13 pin type 14 VIL LOW level input voltage all digital inputs and 1 0 pin types 11 12 and 13 pin type 14 Vhys hysteresis voltage pin type 14 HIGH level output voltage digital outputs 4 9 lo 4 mA pin type 01 and 02 LOW level output voltage digital outputs Vppx 4 9 V lg 4 mA pin types 13 01 and 02 input leakage current Vi 0 or Vppy voltage pin type l4
15. 0 pin ES sound IF input 2 4 r reference voltage analog front end circuitry pe N sound IF input 1 second l C bus slave address modifier Vssp1 supply supply ground 1 digital circuitry VDDD1 supply digital supply voltage 1 digital circuitry CRESET capacitor for power on reset Vssp4 supply supply ground 4 digital circuitry XTALI crystal oscillator input XTALO 0 crystal oscillator output P2 1 0 second general purpose 1 0 SYSCLK 0 system clock output SCK clock WS l C bus word select 002 0 I C bus data output 2 001 I C bus data output 1 SDI2 l C bus data input 2 SDI1 l C bus data input 1 TEST1 first test pin connected for normal operation MONOIN audio mono input TEST second test pin connected to for normal operation EXTIR external audio input right channel EXTIL external audio input left channel SCIR1 SCART 1 input right channel SCART 1 input left channel supply supply ground 3 digital circuitry SCART 2 input right channel SCART 2 input left channel positive power supply voltage 2 decoupling audio analog to digital converter circuitry 92 16 9 Chassis Service Manual SYMBOL DESCRIPTION Vref p positive reference voltage audio analog to digital converter circuitry Vref n reference voltage ground audio
16. 15 Forward bias safe operating area Tps 25 C amp f Vcg Single pulse parameter tp Second breakdown limits independant of temperature Mounted with heatsink compound 92 16 9 Chassis Service Manual SPPO4N60S5 SPBO4N60S5 Cool MOS Power Transistor New revolutionary high voltage technology Ultra low gate charge Periodic avalanche proved Extreme dy d rated Optimized capacitances Improved noise immunity Former development designation SPPx6N60S5 SPBx6N60S5 Type 0 2 5 3 VPT05164 Package Marking Ordering Code SPPO4N60S5 P T0220 3 1 04N60S5 067040 54200 SPBO4N60S5 MAXIMUM RATINGS at 25 C unless otherwise specified P T0263 3 2 0416055 067040 54201 Symbol Value Unit Continuous drain current Ip A 25 C 4 5 100 2 8 Pulsed drain current 1ms Ip puls 7 7 25 Avalanche energy single pulse Eas 130 mJ 4 5A Vpp 50V Ras 259 Periodic avalanche energy Eg only limited by Reverse diode 4 4 0 0 6 kV us lg 4 5 Vps lt Vpss 4 0 100 A us Tjmax 150 Gate source voltage Ves 20 V Power dissipation Ptot 50 25 Operating and storage temperature Tj Tstg 55 150 C 92 16 9 Chassis Service Manual ELECTRICAL CHARACTERISTICS Parameter Value at Tj
17. 16 9 Chassis Service Manual SYMBOL DESCRIPTION Vref p positive reference voltage audio analog to digital converter circuitry PCLKVref n reference voltage ground audio analog to digital converter circuitry internally connected note 1 internally connected note 2 supply ground audio analog to digital converter circuitry internally connected note 2 internally connected note 1 reference voltage audio analog to digital converter circuitry SCART 1 output right channel SCART 1 output left channel supply ground 2 digital circuitry supply ground 4 audio operational amplifier circuitry SCART 2 output right channel SCART 2 output left channel reference voltage audio digital to analog converter and operational amplifier circuitry post filter capacitor pin right channel audio digital to analog converter post filter capacitor pin left channel audio digital to analog converter supply ground 3 audio analog to digital converter circuitry headphone auxiliary output right channel headphone auxiliary output left channel positive analog power supply voltage analog circuitry loudspeaker Main output right channel loudspeaker Main output left channel line output left channel line output right channel digital supply voltage 2 digital circuitry Notes 1 Test pin CMOS level input pull up resistor can be c
18. 201 3004 98 8000 NYOH S 61X6 MANOS 3 02 MOVE v WOVE 89d NIYIN Z 994 NIVIN 18 G 6X6 MJYIS SISSVHO 0 1431 IVY SISSVH3 60 LHOIY SISSVHO 82 9NIHdS AV ZZ 9 6 M3H9S 99 AV 92 99 AV SZ 2 AV vc 6 MANOS H3010H AV EZ AV ZZ U3Q10H 89d 440 NO 12 89d 440 NO 02 1189 t3yV3dS 61 1431 1189 u33v3ds 84 440 NO 1 9NIHdS 0119 340 94 NOLN 330 NO S G 9X6 2 MANOS 894 310IA3U Y4 924 310IA3U 4 G 6X6 2 MANOS 824 NOLNGILINW ZL 100 NOLRgLLTQIN LL 100 MOQNIM 2T TIHAOV 01 9 6 6 M3H2S H3133ML 6 U3133ML 8 ELX6 E M3H2S 3 Z u3xv3ds 9 924 199 9 0 01 M3UOS 149 6 91 82 143 199 199 6 91 82 0 LANIGVO 1 200 6 91 82 4 ALD WAON 100 6 91 8 S 81 92 16 9 Chassis Service Manual 86 8 0901 9 HOHdOHALS VAON 6 91 82 SE 3201000 t 3000 NYOH 61X6 0 MAYIS YIM09 WOVE ZE H3AA09 WOVE 16 89d NIYIN 0 89d NIVIN 62 G 6X6 M3U9S SISSYHI 82 1431 SISSVHO ZZ 1H9IH TIVY SISSVHO 92 9NIHdS H3Q10H AV GZ 9 6 M3U9S 89d vZ 99 amp 2 ZZ 6 MANOS u3q 10H AV LZ d3010H AY 02 U3Q10H 89d 440 NO 64 89d 440 NO 84 1 440 NO 1
19. 9NIHdS NOLN 440 NO 94 0119 3H0 NO S 9 6 MAYIS 89d 10 vL 994 310IN3U 4 6 6 MINDS 89d NOLNSILIN Z4 100 NOLNGILINW LL 100 MOQNIM 04 6 6 0 3 5 U3133ML 6 1 1 8 1X6 M3U9S 43 3 4334 9 824 199 9 0vX0L M3U9S 199 6 91 82 1U3SNI 189 190 6 91 82 0 LANIGVO 1 100 6 91 82 1 VWO3IO 100 6 91 8 92 16 9 Chassis Service Manual 9 6 MINIS dOd 031 6 821 88 HOHdOHALS 6 91 82 ZE 0901 98 3901 30010 8000 NHOH t 61X6 0 M3H9S u3M02 E U3M02 WOWE Z NIYIN LE 89d 199 08 999 67 6 6 6 MAYS SISSWHO 92 1331 SISSVHO ZZ LHOIY SISSVH2 92 9 6 89d AV GZ QNIYdS u3q10H AV vZ 994 AV EZ 2 HAC TOH AV 22 62 0 MANOS YACTOH AV LZ H3010H AV 02 Y3070H 89d 440 NO 64 440 NO 84 H3010H NOLNA 440 NO 1 9NIHdS NOLNG 440 NO 91 NOLNG 440 NO S4 3000 1031109 4 G 9X6 z MINDS 994 NOLNGILIN 4 994 31038 Z4 200 NOLNGILIN 200 1431 MOQNIM 04 200 LHOIY MOGNIM 6 G 6X6 7 MINDS 331391 8 U3133ML Z 1 6 MINDS YANWIdS 9 H3yV3dS S 19391 1949 v 0 01 0 MIHIS 199 6 91 82 6 189 6 91 82 Z LANIGVO LNOYS 200 6 91 82 1 L 6 ALD VWO3IO 00 6 91 8 ce
20. It clears all names and tuning information of all programs and writes default valu es for the service alignments and preset values in NVM While doing so the OSD displays BUSY When the initialization is finished the message READY is written on the screen Default Explanation IF selection 58 8 45 8 38 9 or 38 00 MHz IF for SECAM L1 selection 33 4 or 33 9 MHz Horizontal parallelogram Horizontal bow East west Width for picture setting 16 9 East west Parabola for picture setting 16 9 East west Upper Corner parabola for picture setting 16 9 East west Lower Corner parabola for picture setting 16 9 East west Trapezium for picture setting 16 9 Horizontal parallelogram for picture setting 4 3 Horizontal bow for picture setting 4 3 East west Width for picture setting 4 3 East west Parabola for picture setting 4 3 East west Upper Corner parabola for picture setting 4 3 East west Lower Corner parabola for picture setting 4 3 East west Trapezium for picture setting 4 3 Horizontal Shift Vertical Slope Vertical Amplitude S Correction Vertical Scan Disable Vertical Shift Vertical zoom East west only Black Level Red Black Level Green White point correction Red White point correction Green White point correction Blue Y delay adjustment for SECAM Y delay adjustment for NTSC Y delay adjustment for PAL 92 16 9 Chassis Ser
21. Processing BU2525AF aves Horizontal Deflection 8 Flyback amp E W 1109 29 Degaussing rc PCA8521 16K RC 5 Transmitter EEPROM TDA16846 SMPS 4 92 16 9 Chassis Service Manual FAULT TRACING DIAGRAM POWER SUPPLY Switched mode p supply defective is missing or level is DP 01 04 YES CP 01 04 CP 06 Fuse F1 defective NO RP 07 RP 05 NO open and short circuit Voltage at drain TP 01 YES Voltage at IP 01 PIN 11 lt 1V YES NO YES Start up voltage 6 PIN 14 lt 8V RP 11 DP 07 NO YES TP 01 Start up voltage varies ca 8V NO IP 01 Measure 145 V 145V adjustable with VAP 01 VAP 1 RP 03 92 16 9 Chassis Service Manual 0821 0 ENE 0 5 91919313 40 SLBNIWITS OL 3 11 28 99013538 AL 5 1 941191051 NU LISNNOD 8388 SIHL 9 1210835 N3HM 211385 NOILBLUHOJNI 3210835 182311183 HO 43153135 ATIBIDAdS S31821QNI V H3n1323H 30 413385 BNOILIUH3dO NIBINIBW 01 83080 NI 8855303 1 SIHL i1N3H32U7 d34H 3H3Hl G3SN 38 0 5 5 102118341 ANY SINJ3NOdHOJ 4131385 ATIdNS 935 Cy 8 6551 9 ASIT 111
22. Service Manual ELECTRICAL CHARACTERISTICS Absolute maximum ratings All voltages listed are referenced to ground OV Vss except where noted Parameter Symbol Limit Values Unit Remarks Min Typ Supply Voltage at Pin 14 Voc 0 3 17 V gt Voltage at Pin 1 4 5 7 9 10 0 3 V Voltage at Pin 2 8 11 0 3 17 V Voltage at Pin 3 RZI 6 V Current into Pin 3 10 mA V3 0 3V Current into Pin 9 REF 1 mA Current into Pin 13 OUT 100 mA V13 gt Vec 100 mA V43 lt ESD Protection 2 kV MIIL STD 883C methot 3015 6 100 PF 15000 Storage Temperature Tstg 65 125 20 Operating Junction Temperature 125 C Thermal Resistance RthJA 5 110 KW P DIP 14 3 Junction Ambient Soldering Temperature 260 C Soldering Time 3 10 S Note Stresses above those listed here may cause permanent damage to the device Exposure to absolute maximum rating conditions for extended periods may affect device reliability 92 16 9 Chassis Service Manual Short Description of the Pin Functions Functions A parallel RC circuit between this pin and ground determines the ringing suppression time and the standby frequency A capacitor between this pin and ground and a resistor between this pin and the positive terminal of the primary elcap quantifies the max possible output power of the SMPS This is the input of the error amp
23. Service Manual For the purpose of a simple control software in the micro controller the decimal number that is sent as data byte for volume control is identical to the volume set ting in dB e g the 12C bus data byte 10 sets the new volume value to 10 dB Balance can be realized by independent control of the left and right channel volume settings Bass is adjustable between 15 and 12 dB with 1 dB res olution and treble is adjustable between 12 dB with 1 dB resolution For the purpose of a simple control software in the micro controller the decimal number that is sent as an l C bus data byte for bass or treble is identical to the new bass or treble setting in dB e g the 12C bus data byte 8 sets the new value to 8 dB The beeper provides tones in a range from approximately 400 Hz to 30 kHz The frequency can be selected via the l C bus The beeper output signal is added to the loud speaker and headphone channel signals The beeper vol ume is adjustable with respect to full scale between 0 and 93 dB with 3 dB resolution The beeper is not effected by mute Soft mute provides a mute ability in addition to volume control with a well defined time 32 ms after which the soft mute is completed A smooth fading is achieved by a cosine masking 6 2 6 FEATURE INTERFACE The feature interface comprises two l S bus input output ports and a system clock output Each 5 port is equipped wit
24. between the differential input determines the out put current through the deflection coil The relationship between the differential input current and the output current is defined by X The output current is adjustable from 0 5 A to A by varying The maximum input differential voltage is 1 8 V In the application it is recommended that 1 5 V typ This is recommended because of the spread of input current and the spread in the value of RCON The flyback voltage is determined by an additional supply voltage The principle of operating with two supply vol tages class G makes it possible to fix the supply voltage Vp optimum for the scan voltage and the second supply voltage optimum for the flyback voltage Using this method very high efficiency is achieved The supply voltage VEg is almost totally available as flyback voltage across the coil this being possible due to the ab sence of a decoupling capacitor not necessary due to the bridge configuration The output circuit is fully protected against the following thermal protection short circuit protection of the output pins pins 4 and 7 short circuit of the output pins to Vp A guard circuit VO guard is provided The guard circuit is activated at the following conditions during flyback during short circuit of the coil and during short circuit of the output pins pins 4 and 7 to Vp or ground during o
25. current DC Base current peak value Total power dissipation Ths lt 25 C Storage temperature Junction temperature THERMAL RESISTANCES Symbol Parameter Conditions Rth j hs Junction to heatsink without heatsink compound Rth j hs Junction to heatsink with heatsink compound Rth j a Junction to ambient in free air 92 16 9 Chassis Service Manual ISOLATION LIMITING VALUE amp CHARACTERISTICS 25 C unless otherwise specified SYMBOL PARAMETER CONDITIONS Visol Repetitive peak voltage from all three terminals to external heatsink 65 clean and dustfree Capaticance from 2 to external heatsink STATIC CHARACTERISTICS Ths 29 C unless otherwise specified SYMBOL PARAMETER f 1 MHz CONDITIONS lees lees VcEOsust VcEsat VBEsat hfg DYNAMIC CHARACTERISTICS Collector cut off current Emitter cut off current Collector emitter sustaining voltage Collector emitter saturation voltages Base emitter saturation voltages DC current gain Ths 25 C unless otherwise specified SYMBOL PARAMETER Transition frequency at f 5 MHz V VcesMmax 0 V Voesmmax 125 C 6 0 lg 100 mA L 25 mH l 45 Ip 1 6 A 4 5 2A 1 100 mA Vcg 5 V C
26. designed for mains fed applications such as stereo radio and stereo TV FEATUR ES Requires very few external components No switch on switch off clicks Input mute during switch on and switch off Low offset voltage between output and ground Excellent gain balance of both amplifiers Hi Fi accordance with 268 and DIN 45500 Short circuit proof and thermal protected Mute possibility INV1 MUTE 1 2Vp GND OUT1 Vp OUT2 Vp INV1 2 INV2 ES Sp Ep pues ES p pu TDA2616 Pin Configuration PINNING Pin Symbol Function 1 INV1 non inverting input 1 2 MUTE mute input 3 1 2Vp GND 1 2 supply voltage or ground 4 OUT1 output 1 5 Vp supply voltage negative 6 OUT2 output 2 7 Vp supply voltage positive 8 INV1 2 inverting inputs 1 2 9 INV2 non inverting input 2 QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS Min Typ Max Unit supply voltage range 7 5 5 21 V output power Vp 16 THD 0 5 12 W Gy internal voltage gain 30 z dB Gyl channel unbalance 0 2 gt dB a channel separation 70 dB SVRR supply voltage ripple rejection 60 dB Vno noise output voltage Z 70 5 uV 92 16 9 Chassis Service Manual Block Diagram TDA2616 OUT 1 voltage comparator OUT 2 LIMITING VALUES In accordanc
27. in 4 th option byte TUNER PARAMETER IN SERVICE AND DEFINITION PHILIPS SAMSUNG Start frequency of the low band in MHz 45 45 End frequency of the low band 160 150 Start frequency of the mid band 160 150 End frequency of the mid band 440 425 Start frequency of the high band 440 425 End frequency of the high band 863 865 hex Value needed for switching to the low band hex Value needed for switching to the mid band hex Value needed for switching to the high band 92 16 9 Chassis Service Manual SPECIFICATIONS OF THE CONNECTOR EURO SCART Audio output 1 right channel 0 5 VRMS I 0 2 Audio input 1 right channel 0 5 VRMS connected to No 6 3 Audio output 2 left channel 0 5 VRMS connected to No 1 4 GND audio 5 GND 6 Audio input 2 left channel 0 5 VRMS gt 10k 0 7 RGB input blue B 8 Switch signal video status 9 GND 10 Reserved for clock signals not connected 11 RGB input green G 12 Reserved for remote control not connected 13 GND 14 GND switch signal RGB 15 RGB input red R 16 Switch signal RGB 17 GND video 18 GND19 Video output 1 Vpp 75 ohm 20 Video input 1 Vpp 75 ohm 21 Shield 1 3 5 7 9 1113 15 17 19 21 2 4 6 8 10 12 14 16 18 20 92 16 9 Chassis Service Manual COMPONENT DESCRIPTIONS POWER AMPLIFIER SAW FILTER LINE FILTER VOLTAGE REGULATOR PTC CONNECTOR LOUD SP
28. monitors The TDA 16847 is identical with TDA16846 but has an additional power measurement output pin 8 which can be used a Temporary High Power Circuit Pin Configuration top view DTC 1 14 Pcs 2 13 OUT Rz 3 12 GND sRC 4 11 PVC oci 5 10 FC1 FC2 6 9 REF SYN 7 8 N C PMO Pin Definitions and Functions Pin Symbol Function 1 OTC Off Time Circuit 2 PCS Primary Current Simulation 3 RZI Regulation and Zero Crossing Input 4 SRC Soft Start and Regulation Capacitor 5 OCI Opto Coupler Input 6 FC2 Fault Comparator 2 7 Synchronization Input 8 N C PMO Not Connected TDA16846 9 REF Reference Voltage and Current 10 Fault Comparator 1 11 PVC Primary Voltage Check 12 GND Ground 13 OUT Output 14 VCC Supply Voltage 92 16 9 Chassis Service Manual TDA16846 Block Diagrams SYN 75kQ 15kQ Control Voltage Off Time Limit Comparator 1 OTC 3 RSTC RSTF Eror Amplifier RZI Buffer for Control Voltage 4 SRC X o 00 I 20kQ Comparator 2 5V pe PCS ED1 AL T lt 25mV Overvoltage Comparator Voc dm GND 1 The input with the lower voltage becomes operative Fold Back Point Correction Primary Voltage Check P gt Error Flipflop Output Driver OUT Zero Crossing Supply Voltage Comparator 92 16 9 Chassis
29. o R a a e gt a a e a e e gt P1 2 0NTO P1 1 TO P1 0 INT1 VDDP RESET XTALOUT XTALIN OSCGND VDDC VPE VDDA BO GO RO BLKIN BCLIN B2 UIN G2 YIN R2NIN INSSW2 AUDOUT AMOUT CHROMA CVBS Y GND1 CVBSINT VP1 IFVO SVO PLLIF EHTO AU MSS FBISO HOUT 92 16 9 Chassis Service Manual TDA9875A Digital TV sound processor DTVSP FEATURES 1 1 Demodulator and decoder section Sound IF SIF input switch e g to select between terrestrial TV SIF and SAT SIF sources SIF AGC with 24 dB control range SIF 8 bit Analog to Digital Converter ADC DQPSK demodulation for different standards simultaneously with 1 channel FM demodulation NICAM decoding B G and L standard Two carrier multistandard FM demodulation B G D K and M standard Decoding for three analog multi channel systems A2 A24 and 2 and satellite sound Optional AM demodulation for system L simultaneously with NICAM Programmable identification B G D K and M standard and different identification times 2 DSP section Digital crossbar switch for all digital signal sources and destinations Control of volume balance contour bass treble pseudo stereo spatial bass boost and soft mute Plop free volume control Automatic Volume Level AVL control Adaptive de emphasis for satellite Programmable beeper Monitor selection for F
30. red in styropor materials or plastic magazines Persons have to rid themselves of electrostatic char ges by touching MOS components Hold the component by the body touching the termi nals Use only grounded instruments for testing and pro cessing purposes Remove or connect MOS ICs when operating volta ge is disconnected tage be recorded as a part of the service record It is important to use an accurate and reliable high volta ge meter The primary source of X RAY radiation in this TV re ceiver is the picture tube For continued X RAY radi ation protection the replacement tube must be exactly the same type tube as specified in the part list 92 16 9 Chassis Service Manual SERVICE MENU The service menu is entered by pressing the lt SUB PAGE gt key on the RC and VOLUME DOWN key on the TV simultane ously when the TV is in TV mode The service menu is left by pressing the TV key When entering the service mode the first menu item is IF selection of normal IF Next items can be selected using the keys lt PROGRAM UP gt and lt PROGRAM DOWN gt The value of each item can be changed using the keys lt VOLUME UP gt and VOLUME DOWN The item values are displayed as decimal values except for the tuner band selection BITS and option items They are displayed as hexa decimal values All values are stored in non volatile memory when the service menu is left The INIT CTV832U item initializes the NVM
31. the total gain can be controlled from 40 5 dB to 33 dB If the DC volume control voltage falls below 0 4 V the device will switch to the mute mode The amplifier is short circuit protected to ground Vp and across the load A thermal protection circuit is also imple mented If the crystal temperature rises above 150 oC the gain will be reduced thereby reducing the output power Special attention is given to switch on and switch off clicks low HF radiation and a good overall stability 92 16 9 Chassis Service Manual 7050 Low voltage mono stereo power amplifier GENERAL DESCRIPTION The TDA7050 is a low voltage audio amplifier for small radios with headphones such as watch pen and pocket radios in mono bridge tied load or stereo applications FEATURES Limited to battery supply application only typ 3 and 4 V Operates with supply voltage down to 1 6 V No external components required Very low quiescent current Fixed integrated gain of 26 dB floating differential input Flexibility in use mono BTL as well as stereo Small dimension of encapsulation see package design example QUICK REFERENCE DATA Supply voltage range Vp Total guiescent current at Vp Itot Bridge tied load application BTL Output power at RL 320 Vp dtot 10 D C output offset voltage between the outputs AV noise output voltage r m s value at 1 kHz Re 50 Vno rms Stereo a
32. time packet 26 engine in Hardware for process ing accented G2 and G3 characters Signal quality detector for video and WST VPS data types Comprehensive teletext language coverage Full Field and Vertical Blanking Interval VBI data capture of WST data DISPLAY Teletext and Enhanced OSD modes Features of level 1 5 WST and US Close Caption Serial and Parallel Display Attributes Single Double Quadruple Width and Height for characters Scrolling of display region Variable flash rate controlled by software Enhanced display features including overlining underlining and italics Soft colours using CLUT with 4096 colour palette Globally selectable scan lines per row 9 10 13 16 and character matrix 12x10 12x13 12x16 VxH Fringing Shadow selectable from N S E W direction Fringe colour selectable Meshing of defined area Contrast reduction of defined area Cursor Special Graphics Characters with two planes allowing four colours per character 32 software redefinable On Screen display charac ters 4 WST Character sets GO G2 in single device e g Latin Cyrillic Greek Arabic G1 Mosaic graphics Limited G3 Line drawing characters WST Character sets and Closed Caption Character set in single device 92 16 9 Chassis Service Manual Block Diagram 08 Oo OM LT 18 n 8 NY O1H3 1 T XIHLYN BOM ANA NOLLWYNLW
33. 100 Gate source leakage current less 100 nA 20V Vps Drain Source on state resistance Rps on 0 85 0 95 Q Ves 10V Ip 4 6A 1 current limited by 2 Device on 50mm 50mm 1 5mm epoxy with 6 cm2 one layer 7 thick copper area for drain connection PCB is vertical without blown air 92 16 9 Chassis Service Manual ELECTRICAL CHARACTERISTICS Parameter Val at Tj 25 C unless otherwise specified Symbol min typ max Unit Characteristics Transconductance Jis 4 5 Vps 2 2 Ip Rps on max 0 46 Input capacitance Ciss 970 pF Ves 0 V Vps 25 V f 1 MHz Output capaticance Coss 510 Ves 0 V Vps 25 V f 1 MHz Reverse transfer capaticance Cres 17 Ves 0 V Vps 25 V f 1 MHz Turn on delay time Td on 45 5 Vpp 350 V Veg 10 V lp 7 3 Rg 12 RISE time TR 30 Vpp 350 V Vgs 10 V Ip 7 3 A Rg 120 Turn off delay time Td off 70 Vpp 350 V Ves 10 V 7 3 Rg 12 9 Fall time Tf 30 350 V Veg 10 V lp 7 3 Rg 12 Q 92 16 9 Chassis Service Manual ELECTRICAL CHARACTERISTICS Parameter Value at Tj 25 C unless otherwise specified Symbol min typ max Unit Gate Charge Characteristics Gate source charge Qgs 6 7 nC Ip 7 3 A
34. 14 subaddress 0 The AGC can be controlled via the l C bus Details can be found in the I C bus register definitions see Chapter 10 6 1 3 MIXER The digitized input signal is fed to the mixers which mix one or both input sound carriers down to zero IF A 24 bit control word for each carrier sets the required frequen cy Access to the mixer control word registers is via the l C bus 6 1 4 FM AND AM DEMODULATION An FM or AM input signal is fed via a band limiting filter to a demodulator that can be used for either FM or AM demodulation Apart from the standard fixed de emphasis characteristic an adaptive de emphasis is available for encoded satellite programs A stereo decoder recovers the left and right signal channels from the demodulated sound carriers Both the European and Korean stereo systems are supported 6 1 5 FM AND AM DEMODULATION The identification of the FM sound mode is performed by AM synchronous demodulation of the pilot signal and narrow band detection of the identification frequencies The result is available via the l C bus interface selection be made via the for B G D K and stan dard and for three different modes that represent different trade offs between speed and reliability of identification 6 1 6 CRYSTAL OSCILLATOR The crystal oscillator XO is illustrated in Fig 8 see Chapter 12 The circuitry of the XO is fully integrated only the external 24 57
35. 25 C unless otherwise specified Symbol min typ max Unit Thermal Characteristics Thermal resistance junction case 2 5 KW Thermal resistance junction ambient RinJA 62 Leaded and through hole packages SMD version device on PCB RthJA min footprint 62 6cm cooling area 35 Static Characteristics Drain source breakdown voltage ViBR DsS 600 V OV Ip 0 25 mA Gate threshold voltage Vas Vps Vesith 3 9 45 5 5 200 pA T 25 G Zero gate voltage drain current Vps Vpss Ipss OV T 25 C 0 5 1 Ves OV Tj 150 50 Gate source leakage current less 100 nA Vas 20V Vps Drain Source on state resistance Rps on 0 85 0 95 Q 10V Ip 2 8 1 current limited by Timax 2 Device on 50mm 50mm 1 5mm epoxy PCB with 6 cm2 one layer 70um thick copper area for drain connection PCB is vertical without blown air 92 16 9 Chassis Service Manual SPPO7N60S5 SPBO7N60S5 Cool MOS Power Transistor New revolutionary high voltage technology Ultra low gate charge Periodic avalanche proved Extreme dy d rated Optimized capacitances Improved noise immunity Former development designation SPPx6N60S5 SPBx6N60S5 Type 0 2 5 3 VPT05164 Package Marking Ordering Code 7 6055 0220 3 1 07N60S5 067040 54172
36. 48 9891541 ABSZ YSZ 0052 7162 DVA Yaaa Jad BOLNI 2040 uithout Pi Kh 00 HI 044 3zNZ 200rNI ml 042 Toza H3MOd 92 16 9 Chassis Service Manual TROUBLESHOOTING GUIDE FOR MAIN PCB TROUBLE CHECK POINTS No color Horizontal linearity CV37 CV38 XV01 LD02 RD20 2006 Horizontal size B voltage CD18 CD20 CD27 CD08 06 Flue picture Dark picture RD17 RDO6 RD62 R001 Focus adjust Screen adjust EHT voltage Noise picture TU01 AGC adjust If adjust Interference 01 04 TUO1 sound 1 50 51 IA01 DP17 DP12 RA51 X301 1302 01 Sound distortion 1302 01 1304 07 06 7 01 IA50 51 Memory 02 01 TC10 video the SCART 1 01 01 04 No audio on the SCART 1302 No picture TDO1 TD02 0001 004 0003 0004 1050 RD56 1 01 92 16 9 Chassis Service Manual TDA 16846 Controller For Switch Mode Power Supplies The TDA16846 is suited for TV VCR sets and SAT receivers It also can be good used in PC
37. 6 MHz crystal is needed 6 1 7 TEST PINS Both test pins are active HIGH in normal operation of the device they are wired to Test functions are fo manufacturing tests only and are not available to customers Without external circuitry these pads are pulled down to LOW level with internal resistors 6 1 8 POWER ON RESET FLIP FLOP The power on reset flip flop monitors the internal power supply for the digital part of the device If the supply has temporary been lower than the specified lower limit the power on reset bit FOR transmitter register subad dress O see Section 10 4 1 will be set to HIGH The CLRPOR bit slave register subaddress 1 see Section 10 3 2 resets the power on reset flip flop to LOW 92 16 9 Chassis Service Manual Description of the DSP ova 284 5 1 NOIL93130 n 193135 YOLINOW isnrav T3A31 6 A P74 5 T3A31 e a 15 13A31 434339 XiH1VW 318395579 S LAW LAOS AWNIOA H3d338 34nW L4JOS YNOLNOD 15008 55 XIHAVN 55 8 5 ZS 193135 uvassouo SISVHdW3 30 lt aaxid 15 13A31 01 16 T3A31 Asnrdy 13A31 E 19 0
38. CKAGE NAME DESCRIPTION VERSION TDA9875A SDIP64 plastic shrink dual in line package 64 leads 750 mil 507274 1 92 16 9 Chassis Service Manual Block Diagram INPUT SWITCH AGC ADC FM AM NICAM IDENTIFICATION DEMODULATION DEMODULATION NICAM PCLK XTALI SCIR1 A2 DECODER SCIL1 amp ENTE SAT DECODER EXTIR SYSCLK ANALOG CROSSBAR MONOIN SWITCH XTALO PEAK DETECTION DIGITAL SELECT DIGITAL 9875 AUDIO PROCESSING SCART DAC ADC MOL MOR 92 16 9 Chassis Service Manual Pin configuration PCLK NICAM ADDR1 SCL SDA VSSM VpEC1 lref P1 SIF2 SIF1 ADDR2 VssD1 VDDD1 CRESET VSSD4 XTALI XTALO P2 SYSCLK SCK WS 002 5001 5012 011 TESTI MONOIN 2 EXTIR EXTIL a als x e a e o a gt o TDA9875A A A A a N 5 N gt a a N e gt a a Vppp2 Vref n Vref p VDEC2 SCIL2 SCIR2 VSSD3 SCIL1 SCIR1 92 16 9 Chassis Service Manual SYMBOL DESCRIPTION PCLK NICAM clock output at 728 Khz NICAM serial NICAM data output at 728 kHz ADDR1 first C bus slave address modifier l C bus clock l C bus data supply gr
39. EAKER NPN TRANSISTOR PNP TRANSISTOR COIL TR LINEARITY COIL CERAMIC FILTER AN RESISTOR CERAMIC CAPACITOR POLYESTER CAPACITOR ELECTROLYTIC CAPACITOR DIODE ZENER DIODE PROGRAMMABLE VOLTAGE REFERENCE ku ts THYRISTOR 92 16 9 Chassis Service Manual 596 MINIS 99 G31 LY G31 7 HOHdOHALS 6 91 82 68 0901 82 1901 3000 Z 3000 NYOH 9 61X6 MIJYIS YIM09 19V8 GE WOVE v NIYIN 189 Z 82d NIYIN 3IA VJ LE 6X6 M3U9S SISSVHO 08 1431 SISSVHO 62 SISSVH2 92 9X6 2 MIYIS 82d AV ZZ 9NIHdS H3Q10H AV 92 80d AV SZ 2 AV HZ 16 MINIS u3010H AV EZ AV ZZ YACTOH 828 330 NO LZ 89d 440 NO 02 3010 440 NO 61 9NIHdS 0118 440 NO 84 NOLNG 44O NO Z4 1431 11199 u33v3ds 91 LHOIY 17189 u3xv3dS G4 8000 1091109 59 6 MINDS 894 NOLNGILINW 4 994 31038 Z4 200 NOLNGILINW LL 200 1331 MOGNIM 01 200 LHOIY MOGNIM 6 9 6 6 349 u3133ML 8 u3133ML Z 1X6 M3U0S H3yV3dS 9 433 6 1835 190 v 0 95 189 6 91 82 199 6 91 82 Z LANIGVO 1 200 6 91 82 1 vi ALD 600 6 91 8 11 92 16 9 Chassis Service Manual 0901 88 HOHdOHALS YAON 6 91 82 76
40. F input signal for THD lt 1 5 RMS value crosstalk and mute attenuation operating ambient temperature ORDERING INFORMATION PACKAGE EXTENDED TYPE NUMBER PIN POSITION MATERIAL CODE TDA9830 DIL plastic SOT38GG TDA9830T SO plastic SOT109 Note 1 SOT38 1 1996 November 20 2 SOT109 1 1996 Novembe r20 92 16 9 Chassis Service Manual Block Diagram PINNING SYMBOL input open pin 9 closed 7 AM input external input DESCRIPTION IFIN sound IF differential input signal not connected CAGC AGC capacitor REF voltage filtering capacitor not connected n C AMOUT AM demodulator output input signal from AM to audio switch GND AFOUT CO NO TDA9830 output signal from audio switch MUTE EXTIN co input signal from external to audio switch Vp2 SWITCH switch input select control uu SWITCH supply voltage 12 V alternative MUTE Ja Ja Bl o S mute control GND ground 0 ay gt supply voltage 5 to 8 not connected Pin configuration ar sound IF differential in
41. IRCUIT Vi 2 Vi 3 TDA6107Q MIRROR 2 VoD MIRROR 5 CASCODE 1 P Voc 3 Voc 2 Voc 1 lo m CASCODE 2 92 16 9 Chassis Service Manual PINNING Pin Configuration SYMBOL DESCRIPTION 1 inverting input 1 2 inverting input 2 U 3 inverting input 3 2 4 ground fin 5 Vi 3 5 black current measurement output GND 6 supply voltage lom 5 TDA61070 7 cathode output 3 5 8 cathode output 2 Voc 3 9 cathode output 1 8 ES LIMITING VALUES In accordance with the Absolute Maximum Rating System IEC 134 voltages measured with respect to pin 4 ground currents as specified in Fig 1 unless otherwise specified Parameter supply voltage input voltage at pins 1 to 3 measurement output voltage cathode output voltage storage temperature junction temperature electrostatic handling Human Body Model HBM Machine Model MM HANDLING Inputs and outputs are protected against electrostatic discharge in normal handling However to be totally safe it is desir able to take normal precautions appropriate to handling MOS devices see Handling MOS Devices QUALITY SPECIFICATION Quality specification SNW FQ 611 D is applicable and can be found in the Quality reference Handbook The handbook can be ordered using t
42. LNY annos 318103 9 30 XIHLYN T A9100 2 QNV8 G 21901 Oud Ad 10Q 3NI1AV T3G TANNVHO 0949 5 10L 7VVS 2100 lt 454 NI dSQ 1110 95 7105105 1531 9V14 HOLIMS 54 NVOSL 13539480 cNISM Sel cNDI98 Sl NIV1V0 S l 54 LNIVLVO Sel LNISM S4 Hndur s LNDIO8 S I 92 16 9 Chassis Service Manual PINNING Symbol Pin Function 5 500 1 125 slave word select output l S BCKOUT 2 l S bus slave bit clock output RTCB 3 asynchronous reset test control block input active LOW SHTCB 4 clock divider switch eneble input LOW divide Vppi 5 positive power supply Vssi 6 ground power supply DSP IN1 7 flag input 1 DSP IN2 8 flag input 2 DSP OUT1 9 flag output 1 DSP OUT2 10 flag output 2 11 ground power supply Vpp2 12 positive power supply TSCAN 13 scan control input 14 slave adress selection input SDA 15 PC bus serial data input output SCL 16 l S bus serial clock input DSP RESET 17 chip reset input active LOW Vss xTAL 18 ground power supply crystal oscillator Vpp XTAL 19 positive power supply crystal oscillator XTAL 20 crystal oscillator output 05 21 crystal oscillator input l S BCKIN1 22 l S bus master bit c
43. M AM DC values and signals with peak detection option l S bus interface for a feature extension e g Dolby surround with matrix level adjust and mute 1 3 Analog audio section Analog crossbar switch with inputs for mono and stereo also applicable as SCART 3 input SCART 1 input output SCART 2 input output and line output User defined full level 3 dB scaling for SCART outputs Output selection of mono stereo dual dual A or dual B 20 kHz bandwidth for SCART to SCART copies Standby mode with functionality for SCART copies Dual audio digital to analog converter from DSP to analog crossbar switch bandwidth 15 kHz Dual audio ADC from analog inputs to DSP Two dual audio Digital to Analog Converters DACs for loudspeaker Main and headphone Auxiliary outputs also applicable for L R C and S in the Dolby Pro Logic mode with feature extension 2 GENERAL DESCRIPTION The TDA9875A is a single chip Digital TV Sound Processor DTVSP for analog and digital multi channel Sound systems in TV sets and satellite receivers 2 1 Supported standards The multistandard multi stereo capability of the TDA9875A is mainly of interest in Europe but also in Hong Kong Peoples Republic of China and South East Asia This includes B G D K 1 M and L standard In other application areas there exists only subsets of those standard combinations otherwise only single standards are transmitted M standard is transmitted in Eu
44. Maximum Rating conditions for extended periods may affect device reliability Refer also to the SGS THOMSON SURE Program and other relevant quality documents 2 100pF through 15000 MIL STD 883C 3015 7 3 200pF through 00 EIAJ IC 121 condition C DESCRIPTION The memories are compatible with the 12C standard two wire serial interface which uses a bi directional data bus and serial clock The memories carry a built in 4 bit unique device identification code 1010 corresponding to the 2 bus definition The memories behave as slave devices in the 2 protocol with all memory with all memory operations synchronized by the serial clock Read and write operations are initiated by a START condition generated by the bus master The START condition is followed by a stream of 4 bits identification code 1010 3 block select bits plus one read write bit and terminated by an acknowledge bit When writing data to the memory it responds to the 8 bits received by asserting an acknowledge bit during the 9th bit time When data is read by the bus master it acknowledges the receipt of the data bytes in the same way Data transfers are terminated with a STOP condition 92 16 9 Chassis Service Manual TDA835 1 DC coupled vertical deflection circuit FEATURES GENERAL DESCRIPTION Few external components The TDA8351 is a power circuit for use in 90 and 100 ui 2 I colour deflection systems for field frequencies of 50 to
45. ONDITIONS Ic 0 1 5 Collector capacitance at f 5 MHz Switching times 16 kHz line deflection circuit Turn off storage time Turn off fall time 1 Measured with half sine wave voltage curve tracer 10 lcsat 4 5 Le 1 mH Cip 4 nF IB end 214 6 uH Vpp 4 V 2 25A 92 16 9 Chassis Service Manual 994 1 10 Fig 7 Typical collector emitter saturation voltage Vpesat f parameter i 3 Fig 8 Typical base emitter saturation voltage Vpesat f parameter 1 4 5 IC 0 1 0 1 1 Fig 9 Typical collector emitter saturation voltage Vcesat f parameter 0 0P E07 1 0E 05 1E 03 1 0E 01 1 0 1 tis ig 10 Transient thermal impedance Zw j ns f t parameter D Normalised Power Derating und 90 80 70 60 50 40 30 20 10 0 0 20 40 ig 11 Normali
46. RT to SCART copies Standby mode with functionality for SCART copies Dual audio digital to analog converter from DSP to analog crossbar switch bandwidth 15 kHz Dual audio ADC from analog inputs to DSP Two dual audio Digital to Analog Converters DACs for loudspeaker Main and headphone Auxiliary outputs also applicable for L R C and S in the Dolby Pro Logic mode with feature extension 2 GENERAL DESCRIPTION The TDA9870A is a single chip Digital TV Sound Processor DTVSP for analog multi channel sound Systems in TV sets and satellite receivers 2 1 Supported standards The multistandard multi stereo capability of the TDA9870A is mainly of interest in Europe but also in Hong Kong Peoples Republic of China and South East Asia This includes B G D K M and L standard In other application areas there exists only subsets of those standard combinations otherwise only single standards are transmitted M standard is transmitted in Europe by the American Forces Network AFN with European channel spacing 7 MHz VHF 8 MHz UHF and monaural sound Korea has a stereo sound system similar to Europe and is supported by the TDA9870A Differences include deviation modulation contents and identification It is based on M standard An overview of the supported standards and sound systems and their key parameters is given in Table 1 The analog multi channel sound systems A2 A24 and AP are sometimes also named 2CS 2 carrier s
47. S a 13IHS H XId1 VIN 8 4001 pu INAO d3S ONAS NH LY3SNI 8 AV130 ONVS 3sva m OSAN ANO3S INd FA HO13MIS VNOSHO LNAI Ka vm __ HOLIMS YOLINGOWSG WV 50 1 313131 NOLUSINDOV 1 313131 O3GlA SSO s OVO WMd LSA 15208 39 0 W3AISOSNVHL 5 79 33u3 LNSWNONV m ONNOS 550 3l NOISIA ze o 16 42 gt 9 OOVYEANNL 2 mc I 5 LNOW NIdIS 13588 LSA vas 126 xz 1 a37 1304 LNOWV LNOSS 92 16 9 Chassis Service Manual QUICK REFERENCE DATA SYMBOL PARAMETER Min Typ Max Unit Supply Vp supply voltage 8 0 3 3 V lp supply current tbf mA Input voltages VisIF rms video IF amplifier sensitivity RMS value 35 uv Vivie rms QSS sound IF amplifier sensitivity RMS value 60 uV ViauDio rms external audio input RMS value 500 Vicves p p external CVBS Y input peak to pe
48. SERVICE MANUAL PT92 16 9 CHASSIS 92 16 9 Chassis Service Manual CONTENTS PAGE 1 Technical Data 4 2 Recommendation for service repairs 5 3 Handling of MOS chip components 5 4 X Ray radiation precaution 5 5 Service Menu 6 6 Specification of the connector Euroscart 9 7 Component descriptions 10 8 Exploded view 11 9 Block Diagrams 16 10 Fault tracing diagram power supply 17 11 Power Supply circuit diagram 18 12 Troubleshooting guide for main PCB 19 13 Descriptions of the integrated circuits IDA16846 SMPS IC 20 TDA935X UOC IC 24 IDA9875A TV SOUND IC STEREO 31 IDA9870A TV SOUND G STEREO 38 24 16 EEPROM 48 IDA8351 VERTICAL 110 50 TDA2616 STEREO AUDIO AMPLIFIER 110 55 TDA7057AQ HP AMPLIFIER 57 TDA7050 HP AMPLIFIER 59 TDA6107Q VIDEO OUTPUT AMPLIFIER 62 TCDT1100 OPTOCOUPLER 64 TDA9830 TV SOUND AM DEMODULATOR 66 SAA7710T DOLBY PRO LOGIC SURROUND 70 BU508AF SILICON DIFFUSED POWER TR 75 BU2525AF SILICON DIFFUSED POWER TR 79 SPPO4N60S5 COOL MOS POWER TRANSISTOR 83 SPPO7N60S5 COOL MOS POWER TRANSISTOR 85 14 Dolby and secam L mono board and circuits diagrams 89 15 Oscilloscope shapes 92 16 Chassis replacement part list 93 17 Main Circuit 108 92 16 9 Chassis Service Manual TECHNICAL DATA CRT PANEL Visible Picture 32 106 76 Deflection Angle 28 106 66
49. TYPE NUMBER PACKAGE DESCRIPTION VERSION TDA8351 plastic single in line power package 9 leads 50 131 2 Block Diagram Vp Vo guard TDA8351 pes ldrive pos ldrive neg 92 16 9 Chassis Service Manual PINNING SYMBOL DESCRIPTION drive pos input power stage positive includes spy signal bias drive neg input power stage negative includes gh signal bias Vp operating supply voltage VO B output voltage B GND ground VFB input flyback supply voltage VO A output voltage A VO guard guardoutput voltage input feedback voltage Pin Configuration drive pos drive neg Vp GND TDA8351 VFB Vo guard cM M El Metal block connected to substrate pin 5 Metal on back 92 16 9 Chassis Service Manual FUNCTIONAL DESCRIPTION The vertical driver circuit is a bridge configuration The deflection coil is connected between the output amplifiers which are driven in phase opposition An external resistor RM connected in series with the deflection coil provides in ternal feedback information The differential input circuit is voltage driven The input circuit has been adapted to enab le it to be used with the TDA9150A TDA9151B TDA9160A TDA9162 TDA8366 and TDA8376 which deliver symmetrical current signals An external resistor RCON connected
50. ak value 1 0 VicHORAMA p p external chroma input voltage burst amplitude 0 3 peak to peak value VinGB p p RGB inputs peak to peak value 0 7 V ViviN p p luminance input signal peak to peak value 5 1 4 V ViUVIN p p UN input signal peak to peak value 1 33 1 05 V Output signals Vo IFVO p p demodulated CVBS output peak to peak value 2 5 V Vo asso rms Sound IF intercarrier output QSS versions RMS value 100 mV Vo AM0UT rms demodulated AM sound output QSS versions RMS value 500 E mV lo AGCOUT tuner AGC output current range 0 2 5 VoRGB p p RGB output signal amplitudes peak to peak value 5 2 0 V lo HOUT horizontal output current 10 mA lo VERT vertical output current peak to peak value 1 gt lo EWD EW drive output current 12 mA 92 16 9 Chassis Service Manual PINNING SYMBOL DESCRIPTION 1 3 1 port 1 3 or Counter Timer 1 input P1 6 SCL port 1 6 or l C bus clock line P1 7 SDA port 1 7 or data line P2 O TPWM port 2 0 or Tuning PWM output P3 0 ADCO port 3 0 or ADCO input P3 1 ADCI port 3 1 or ADC1 input P3 2 ADC2 port 3 2 or ADC2 input P3 3 ADC3 port 3 3 or ADC3 input VSSC P c digital ground for p Controller core and periphery 5 port 0 5 8 mA current sinking capability for direct drive o
51. al count down circuit Vertical driver optimized for DC coupled vertical output stages Horizontal and vertical geometry processing Horizontal and vertical zoom function for 16 9 applications Horizontal parallelogram and bow correction for large Screen picture tubes 92 16 9 Chassis Service Manual p CONTROLLER 80C51 p controller core standard instruction set and timing 1 us machine cycle 32 128Kx8 bit late programmed ROM 3 12Kx8 bit Auxiliary RAM shared with Display and Acquisition Interrupt controller for individual enable disable with two level priority Two 16 bit Timer Counter registers WatchDog timer Auxiliary RAM page pointer 16 bit Data pointer IDLE and Power Down PD mode 14 bits PWM for Voltage Synthesis Tuning 8 bit A D converter 4 pins which can be programmed as general pin ADC input or PWM 6 bit output DATA CAPTURE Text memory for 1 or 10 pages In the 10 page versions inventory of transmitted Teletext pages stored in the Transmitted Page Table TPT and Subtitle Page Table SPT Data Capture for US Closed Caption Data Capture for 525 625 line WST VPS PDC system A and Wise Screen Signalling WSS bit decoding Automatic selection between 525 WST 625 WST Automatic selection between 625 WST VPS on line 16 of VBI Real time capture and decoding for WST Teletext in Hardware to enable optimized p processor through put Automatic detection of FASTEXT transmission Real
52. analog to digital converter circuitry internally connected note 2 internally connected note 3 supply supply ground audio analog to digital converter circuitry internally connected note 3 internally connected note 2 B reference voltage audio analog to digital converter circuitry 0 SCART 1 output right channel 0 SCART 1 output left channel supply supply ground 2 digital circuitry supply supply ground 4 audio operational amplifier circuitry 0 SCART 2 output right channel 0 SCART 2 output left channel reference voltage audio digital to analog converter and operational amplifier circuitry post filter capacitor pin right channel audio digital to analog converter post filter capacitor pin left channel audio digital to analog converter supply supply ground 3 audio analog to digital converter circuitry headphone auxiliary output right channel headphone auxiliary output left channel positive analog power supply voltage analog circuitry loudspeaker Main output right channel loudspeaker Main output left channel line output left channel line output right channel digital supply voltage 2 digital circuitry Notes 1 Test pin CMOS 3 state stage pull up resistor be connected to Vos 2 Test pin CMOS level input pull up resistor can be connected to Ves 3 Test CMOS 3 state stage
53. before handling the tube The picture tube is highly evacuated and if broken Glass fragments will be violently expelled Always discharge the picture tube anode to the rece iver chassis to keep of the shock hazard before re moving the anode cap Keep wire away from the high voltage or high tempe rature components When replacing a wattage resistor in circuit board keep the resistor 10 mm away from circuit board HANDLING OF MOS CHIP COMPONENTS MOS circuit requires special attention with regard to static charges Static charges may occur with any high ly insulating plastics and can be transferred to persons wearing clothes and shoes made of synthetic materi als Protective circuits on the inputs and outputs of mos circuits give protection to a limited extend only due to time of reaction Please observe the following instructions to protect the components against damage from static charges 1 Keep mos components in conductive package until they are used Most components must never be sto X RAY RADIATION PRECAUTION 1 Excessive high voltage can be produce potentially hazardous X RAY radiation To avoid such hazard the high voltage must not be above the specified li mit The nominal value of the high voltage of this re ceiver is 25KV at zero beam current minimum brightness under 220V AC power source The high voltage must not under any circumstance exceed 30KV It is recommended the reading of the high vol
54. ce gain of audio switch audio switching voltage to activate pin 7 audio switching voltage to activate pin 9 92 16 9 Chassis Service Manual Parameter Conditions input voltage for MUTE ON input voltage for MUTE OFF note 4 output current of switching pins at 10 12 13 0 DC plop at AF output pin with switching from internal to external audio signal or to mute state or vice versa output resistance Ripple rejection note 6 RR AF signal output ORR Vripple Vp Vout AF signal output with AF signal from externalsource Notes to the characteristics 1 In the power supply voltage range 5 0 UP to 8 0 the performance will not change essentially With power supply from 2 12 0 the performance will be comparable with the performance 5 0 V UP fo 8 0 V The unused power supply pin must be not connected Start of gain control low IF input signal at 3 dB AF signal reduction at pin 6 End of gain control high IF input signal at 1 dB AF signal expansion at pin 6 This state is also valid for pin left open circuit If a DC plop of about maximum 100 mV is acceptable when switching from internal to external audio signal or from internal to mute state or vice versa the capacitor between pin 6 and 7 can be omitted and pin 6 be con nected to pin 7
55. cm Vertical Frequency 50Hz Horizontal Frequency 15 625Hz ELECTRONIC Program Number 100 AV Teletext Flof text Tuner Cable tuner 8 MHz spacing for Hyper Band TV System European CCIR system Music Power 106 2 8 Watt Rms 10 distortion CONNECTIONS Euro AV Socket Include MAIN STAGE Mains Voltage 165 260VAC Mains Frequency 50Hz Power Consumption 28 32 145 Watt In Stby Mode 28 32 11 Watt 92 16 9 Chassis Service Manual RECOMMENDATION FOR SERVICE REPAIRS 1 Use only original spare parts Only use components with the same specifications for replacement 2 Original fuse value only should be used 3 Main leads and connecting leads should be checked for external damage before connection Check the insulation 4 Parts contributing to the safety of the product must not be damaged or obviously unsuitable This is valid especially for insulators and insulating parts Thermally loaded solder pads are to be sucked off and re soldered Ensure that the ventilation slots are not obstructed Potentials as high as 25 KV are present when this re ceiver is operating Operation of the receiver outside the cabinet or with back cover removed invol 1 TP 1 1 ve a shock hazard from the receiver Servicing should not be attempted by anyone who is not thoroughly familiar with the precautions necessary when working on high voltage equipment Perfectly discharge the high potential of the picture tube
56. e 1251 1252 outputs also provide digital outputs from the loudspeaker and headphone channels but without the beeper signals 6 2 10 GENERAL There are a number of functions that can provide signal gain e g volume bass and treble control Great care has to be taken when using gain with large input signals in order not to exceed the maximum possible signal swing which would cause severe signal distortion The nominal signal level of the various signal sources to the digital crossbar switch should be 15 dB below digital full scale 15 dB full scale This means that a volume setting of say 415 dB would just produce a full scale output signal and not cause clipping if the signal level is nominal Sending illegal data patterns via the will not cause any changes of the current setting for the volume bass treble bass boost and level adjust functions 6 2 11 EXPERT MODE The TDA9870A provides a special expert mode that gives direct write access to the internal Coefficient RAM CRAM of the DSP It can be used to create user defined characteristics such as a tone control with different corner frequencies or special boost cut characteristics to correct the low frequency loudspeaker and or cabinet frequency responses by means of the bass boost filter However this mode must be used with great care More information on the functions of this device such as the number of coefficients per function their default val ues m
57. e external band pass filters can be omitted Source selection between internal CVBS and external CVBS or Y C signals Integrated chrominance trap circuit Integrated luminance delay line with adjustable delay time Asymmetrical delay line type peaking in the luminance channel Black stretching for non standard luminance signals Integrated chroma band pass filter with switchable centre frequency Only one reference 12 MHz crystal required for the CL Controller Teletext and the colour decoder used in economy television receivers with 90 and 110 picture tubes The ICs have supply voltages of 8 V and 3 3 V and they are mounted in S DIP envelope with 64 pins The features are given in the following feature list The differences between the various ICs are given in the table on page 4 PAL NTSC or multi standard colour decoder with automatic search system Internal base band delay line RGB control circuit with Continuous Cathode Calibration white point and black level off set adjustment so that the colour temperature of the dark and the light parts of the screen can be chosen independently Linear RGB or YUV input with fast blanking for external RGB YUV sources Text OSD signals are internal ly supplied from the p Controller Teletext decoder Contrast reduction possibility during mixed mode of OSD and Text signals Horizontal synchronization with two control loops and alignment free horizontal oscillator Vertic
58. e peak voltage from R H lt 65 clean and dustfree all three terminals to external heatsink Cisol Capaticance from T2 to external heatsink STATIC CHARACTERISTICS Ths 25 C unless otherwise specified SYMBOL PARAMETER CONDITIONS lces Collector cut off current 0 VCESMmax lees Vee 0 V Voesmmax 125 C Emitter cut off current Veg 7 5 V lc Emitter base breakdown voltage 1 VcEOsust Collector emitter sustaining voltage Ip 100 mA L 25 mH Voesat Collector emitter saturation voltages 8 0 lg 1 6 A VBEsat Base emitter saturation voltages l 8 0 A Ip 1 6 Nee DC current gain lc 100 mA Vcg 5 Vcg 5 DYNAMIC CHARACTERISTICS Ths 25 C unless otherwise specified SYMBOL PARAMETER CONDITIONS Collector capacitance lp Vcg 10V f 1 MHz Switching times 32 kHz line Icsat 8 0 260 13 nF deflection circuit 1 1 A Lg 2 5 Vgg 4 V dlg dt 1 6 A us Turn off storage time Turn off fall time 92 16 9 Chassis Service Manual Tjs25C Tj 125 C Fig 7 Typical base emitter saturation voltage f parameter 1000 Eoff uJ 10 0 1 1 IB A Fig 8 Typical co
59. e with the Absolute maximum System IEC 134 Symbol _ Parameter Conditions Min Max Unit Vp supply voltage 21 V losm non repetitive peak output current 4 A Prot total power dissipation E 25 W Tstg storage temperature range 55 4150 TymAL Crystal temperature 3 150 C Tamb ambient operating temperature range 25 150 short circuit time short circuit to ground note 1 1 h Note to the limiting values 1 For asymmetrical power supplies with the load short circued the maximum unloaded supply voltage is limited to Vp 28 V and with an internal supply resistance of Rg 2 4Q the maximum unloaded supply voltage is limited to 32 with the load short circuited For symmetrical power supplies the circuit is short circuit proof up to Vp 21V 92 16 9 Chassis Service Manual TDA7057AQ 2 x5 W stereo BTL Audio Output Amplifier with DC Volume Control FEATURES DC volume control Few external components Mute mode Thermal protection Short circuit proof No switch on and switch off clicks Good overall stability Low power consumption Low HF radiation ESD protected on all pins QUICK REFERENCE DATA GENERAL DESCRIPTION The TDA7057AQ is astereo BTL output amplifier with DC volume control The device is designed for use in TV and monitors but are also suitable for battery fed portable recorders and radios Missing Current Limiter MCL A MCL p
60. emory addresses etc can be made available 92 16 9 Chassis Service Manual 5 24 16 ST25C 16 ST24W16 ST25W16 Serial 16 2K x 8 Eeprom 1 million erase write cycles with 40 years data retention Single supply voltage 4 5V to 5 5V for ST24x16 versions 2 5V to 5 5V for ST25x16 versions Hardware write control versions ST24W16 ST25W16 Two wire serial interface fully 2 Bus compatible Byte and Multibyte write up to 8 bytes for the ST24C16 Page write up to 16 bytes Byte random and sequential read modes Self timed programming cycle Automatic address incrementing Enhanced ESD Latch up performances DESCRIPTION This specification covers a range of 16K bits I2C bus EEPROM products the ST24 25C16 and the ST24 25W106 In the text products are referred to as ST24 25x16 where X is C for Standard version and W for hardware Write Control version The ST24 25x16 are 16K bit electrically erasable pro grammable memories EEPROM organized as 8 blocks of 256 x 8 bits These are manufactured in SGS Thomson s Hi Endurance Advanced CMOS technology which guarantees an endurance of one million erase write cycles with a data retention of 40 years The ST25x16 operates with a power supply value as low as 2 5V Both Plastic Dual in Line and Plastic Small Outline packages are Available Table 1 Signal Names Write Protect Enable Protect Block Select Serial Data Address Input Outp
61. f LEDs P0 6 gt gt port 0 6 8 mA current sinking capability for direct drive of LEDs VSSA gt analog ground of Teletext decoder and digital ground of TV processor SECPLL cs Co SECAM PLL decoupling VP2 A 2 supply voltage TV processor 8V DECDIG decoupling digital supply of TV processor PH2LF phase 2 filter PH1LF gt N phase 1 filter GND3 ground 3 for TV processor DECBG bandgap decoupling AVL EWD Automatic Volume Levelling East West drive output VDRB En vertical drive B output VDRA vertical drive A output IFIN1 4 IF input 1 IFIN2 IF input 2 IREF reference current input VSC vertical sawtooth capacitor TUNERAGC tuner AGC output AUDEEM SIFIN1 audio deemphasis or SIF input 1 DECSDEM SIFIN2 decoupling sound demodulator SIF input 2 GND2 Co ground 2 for TV processor SNDPLL SIFAGC narrow band PLL filter AGC sound IF AVL REFO AMOUT 4 Automatic Volume Levelling subcarrier reference output AM output controlled HOUT horizontal output FBISO 6 flyback input sandcastle output AUDEXT QSSO AMOUT Co
62. g samples The internally stored peak value is reset to zero when the data is read via the l C bus The monitor function may be used for example for signal level measurements or carrier detection 6 2 4 LOUDSPEAKER MAIN CHANNEL The matrix provides the following functions forced mono stereo channel swap channel 1 channel 2 and spatial effects There are fixed coefficient sets for spatial settings of 30 40 and 52 The Automatic Volume Level AVL function provides a constant output level of 23 dB full scale for input levels between 0 and 29 dB full scale There are some fixed decay time constants to choose from i e 2 4 and 8 s Pseudo stereo is based on a phase shift in one channel via a 2nd order all pass filter There are fixed coefficient sets to provide 90 degrees phase shift at frequencies of 150 200 and 300 Hz Volume is controlled individually for each channel ranging from 24 to 83 dB with 1 dB resolution There is also a mute position For the purpose of a simple control soft ware in the microcontroller the decimal number that is sent as an l C bus data byte for volume control is identical to the volume setting in dBs e g the 12C bus data byte 10 sets the new volume value to 10 dB Balance can be realized by independent control of the left and right channel volume settings Contour is adjustable between 0 and 18 dB with 1 dB resolution This function is linked to the volume setting by means of microc
63. h level adjust facilities that can change the signal level in a range of 15 dB with 1 dB resolution Outputs can be disabled to improve EMC performance The 5 output matrix provides the following functions forced mono stereo channel swap channel 1 and chan nel 2 One example of how the feature interface can be used in a TV set is to connect an external Dolby Surround Pro Logic DSP such as the SAA7710 to the I S bus ports Outputs must be enabled and a suitable master clock sig nal for the DSP can be taken from pin SYSCLK A stereo signal from any source will be output on one of the l S bus serial data outputs and the four processed sig nal channels will be entered at both l S bus serial data inputs Left and right could then be output to the power amplifiers via the Main channel centre and surround via the Auxiliary channel 6 2 7 CHANNEL FROM THE AUDIO ADC The signal level at the output of the ADC can be adjusted in a range of 15 dB with 1 dB resolution The audio ADC itself is scaled to a gain of 6 dB 6 2 8 CHANNEL TO THE ANALOG CROSS BAR PATH Level adjust with control positions 0 dB 3 dB 6 dB and 9 dB 6 2 9 DIGITAL CROSSBAR SWITCH See Fig 6 Input channels to the crossbar switch are from the audio ADC 51 252 FM path and from the loudspeaker chan nel path after matrix and AVL Output channels comprise loudspeaker headphone 1261 252 and the audio DACs for line output and SCART Th
64. he code 9397 750 00192 92 16 9 Chassis Service Manual TCDT1100 G Series Optocoupler with Phototransistor Output FEATURES According to VDE 0884 Rated impulse voltage transient overvoltage VIOTM 6 kV peak Isolation test voltage partial discharge test voltage Vpd 1 6 kV Rated isolation voltage RMS includes DC VIOWM 600 VRMS 848 V peak Rated recurring peak voltage repetitive VIoRM 600 VRMS Creepage current resistance according to VDE 0303 1EC 112 Comparative Tracking Index 275 Thickness through insulation gt 0 75 mm ORDER SCHEMATIC PART NUMBERS Further approvals BS 415 BS 7002 SETI IEC 950 UL 1577 File No E 76222 Base not connected CTR offered in 4 groups Isolation materials according to UL94 VO Pollution degree 2 DIN VDE 0110 resp 664 Climatic classification 55 100 21 IEC 68 part 1 Special construction Therefore extra low coupling capacity of typical 0 2 pF high Common Mode Rejection Low temperature coefficient of CTR CTR RANKING TCDT1100 TCDT1100G gt 40 TCDT1101 TCDT1101G 40 to 80 TCDT1102 TCDT1102G TCDT1103 TCDT1103G 63 to 125 100 to 2000 Suffix G Leadform 10 16 mm Pin Connection 92 16 9 Chassis Service Manual ABSOLUTE MAXIMUM RATINGS Input Emitter Parameters Test Conditions Reverse voltage Forward current Forward surge current
65. in 20 28 29 31 32 35 and 44 is dependent on the IC version mono irtercarrier FM demodulator 055 IF amplifier and East West output or not and on some software control bits The valid combinations are given in table 1 Table 1 Pin functions for various versions IC version FM PLL version QSS version East West Y N Y N Y CMB1 CMBO bits 00 01 10 11 00 01 10 11 00 01 10 11 AM bit 0 1 ee 20 AVL EWD AVL EWD Pin 28 AUDEEM SIFIN1 Pin 29 DECSDEM SIFIN2 Pin 31 SNDPLL SIFAGC Pin 32 AVL REFO AMOUT REFO AMOUT REFO Pin 35 AUDEXT AUDEX 0550 AMOUT AUDEXT 0550 AMOUT Pin 44 AUDOUT controlled AM out 92 16 9 Chassis Service Manual Pin configuration SDIP 64 P1 3TT1 P1 G SCL P1 7 SDA P2 0TPMW P3 0 ADCO P3 1 ADC1 P3 2 ADC2 P3 3 ADC3 VSSC P P0 5 P0 6 VSSA SECPLL VP2 DECDIG PH2LF GND3 DECBG AVL EWD VDRB VDRA IFIN1 IFIN2 IREF VSC TUNERAGC AUDEEM SIFIN1 DECSDEM SIFIN 2 GND2 SNDPLL SIFAGC AVLIREFO AMOUT e o a A T U L1 2 4 5 5 7 5 9 10 12 3 e x 2 gt lt LO A A A a a a a o
66. lifier and the zero crossing input The output of a voltage divider between the control winding and ground is connected to this input If the pulses at pin 3 exceed a 5 V threshold the control voltage at pin 4 is lowered This is the pin for the control voltage A capacitor has to be connected between this pin and ground The value of this capacitor determines the duration of the softstart and the speed of the control If an opto coupler for the control is used it s output has to be connected between this pin and ground The voltage divider at pin 3 has then to be changed so that the pulses at pin 3 are below 5 V Fault comparator 2 If a voltage gt 1 2 V is applied to this pin the SMPS stops If fixed frequency mode is wanted a parallel RC circuit has to be connected between this pin and ground The RC value determines the frequency If synchronized mode is wanted sync pulses have to be fed into this pin Not connected TDA16846 This is the power measurement output of the Temporary High Power Circuit A capacitor and a RC circuit has to be connected between this pin and ground Output for reference voltage 5 V With a resistor between this pin and ground the fault comparator 2 pin 6 is enabled Fault comparator i If a voltage gt 1 V is applied to this pin the SMPS stops This is the input of the primary voltage check The voltage at the anode of the primary elcap has to be fed to this pin via a v
67. llector emitter saturation voltage f 15 parameter VBESAT V Fig 9 Typical base emitter saturation voltage Vpesat f parameter 0 VCESAT V 1 Fig 10 Typical collector emitter saturation voltage Vcesat f parameter 1000 uJ 10 0 1 1 IB A Fig 11 Typical turn off losses Ti 85 f Ig parameter f 32 kHz N G DS Fig 12 Typical collector storage and fall time ts f tf f parameter Tj 85 f 32 kHz 92 16 9 Chassis Service Manual Normalised Power Derating 80 Ths 13 Normalised power dissipation PD 100 Pp Pp 25 f Ths Zth KW 0 0 NC E 06 1E 04 1 02 1E 00 t s 0 001 1 Fig 14 Transient thermal impedance Zin j ns f t parameter D tyT 100 1000 VCE V Fig
68. lock input 1 lS WSIN1 23 l 5 bus master word select input 1 l S DATAIN1 24 l S bus master data input 1 l S DATAIN2 25 l S bus master data input 2 l S WSIN2 26 l 5 bus master word select input 2 l S BCKIN2 27 l S bus master bit clock input 2 l S DATAOUT1 28 l S bus slave data output 1 l S DATAOUT2 29 l S bus slave data output 2 l S DATAOUTS3 30 l S bus slave data output Vasa 31 ground power supply Vppa 32 positive power supply l S WSOUT l S BCKOUT RTCB SCHTCP Vssi DSP IN1 DSP IN2 DSP OUT1 DSP OUT2 Vss2 Vpp2 TSCAN A0 SDA SCL SAA7710T at M Vssa lI S DATAOUT3 l S DATAOUT2 l S DATAOUTI l S BCKIN2 l S WSIN2 l S DATAIN2 l S DATAIN1 l S WSIN1 l S BCKIN1 05 XTAL Vop xtat Vss xTAL DSP RESET Pin Configuration 92 16 9 Chassis Service Manual LIMITING VALUES In accordance with the Absolute Maximum Rating System IEC134 Parameter Conditions DC supply voltage voltage difference between two VDDx pins maximum input voltage DC input clamp diode current Vi lt 0 5 V or Vj gt 0 5 V DC output clamp diode current output Vo lt 0 5 V or type 4 mA Vo gt Vpp 0 5 DC output source or sink current output 0 5 lt Vpp 0 5 V type 4 mA DC output source or sink current output 0 5 V lt
69. oltage divider If the voltage of this pin falls below 1 V the SMPS is switched off A second function of this pin is the primary voltage depen dent fold back point correction only active in free running mode Common ground Output signal This pin has to be connected across a serial resistor with the gate of the power transistor Connection for supply voltage and startup capacitor After startup the supply voltage is produced by the control winding of the transformer and rectified by an external diode 92 16 9 Chassis Service Manual TDA935X 6X 8X TV signal processor Teletext decoder with embedded u Controller GENERAL DESCRIPTION The various versions of the TDA935X 6X 8X series combine the functions of a n signal processor toget her with a u Controller US Closed Caption deco der Most versions have a Teletext decoder on board The Teletext decoder has an internal RAM memory for 1 or 10 page text The ICs are intended to be FEATURES TV signal processor Multi standard vision IF circuit with alignment free PLL demodulator Internal switchable time constant for the IF AGC cir cuit A choice can be made between versions with mono intercarrier sound FM demodulator and versions with QSS IF amplifier The mono intercarrier sound versions have a selective FM PLL demodulator which can be switched to the different FM sound frequencies 4 5 5 5 6 0 6 5 MHz The quality of this system is such that th
70. onnected to Vos 2 Test pin CMOS 3 state stage can be connected to Vos 92 16 9 Chassis Service Manual TDA9870A Digital TV sound processor DTVSP FEATURES 1 1 Demodulator and decoder section Sound IF SIF input switch e g to select between terrestrial TV SIF and SAT SIF sources SIF AGC with 24 dB control range SIF 8 bit Analog to Digital Converter ADC Two carrier multistandard FM demodulation B G D K and M standard Decoding for three analog multi channel systems A2 2 and A2 and satellite sound Programmable identification B G D K and M standard and different identification times 2 DSP section Digital crossbar switch for all digital signal sources and destinations Control of volume balance contour bass treble pseudo stereo spatial bass boost and soft mute Plop free volume control Automatic Volume Level AVL control Adaptive de emphasis for satellite Programmable beeper Monitor selection for FM AM DC values and signals with peak detection option l S bus interface for a feature extension e g Dolby surround with matrix level adjust and mute 1 3 Analog audio section Analog crossbar switch with inputs for mono and stereo also applicable as SCART 3 input SCART 1 input output SCART 2 input output and line output User defined full level 3 dB scaling for SCART outputs Output selection of mono stereo dual dual A dual B 20 kHz bandwidth for SCA
71. ontrol Variable output matrix Sub woofer Centre mode control on off normal phantom wide Output volume control Automatic balance and master level control with DC off set filter Hall matrix surround sound functions Adjustable delay for surround channel Modified Dolby B noise reduction QUICK REFERENCE DATA SYMBOL PARAMETER Min Unit Vpp DC supply voltage 0 5 46 5 V AVpp voltage difference between two Vpp pins 550 Vi Maximum input voltage 0 5 Vpp O5 V lbp DC supply current 50 mA 88 DC supply current gt 50 mA lat ambient operating temperature 40 85 C storage temperature range 65 150 C Remark Dolby Dolby and Pro Logic are trademarks of Dolby Laboratories Licensing Corporation They are available only to licensees of Dolby Laboratories Licensing Corporation San Francisco CA94111 USA from whom licensing and application information mus be obtained ORDERING INFORMATION TYPE NUMBER NAME DESCRIPTION VERSION 5 7710 104 5032 plastic small outline package 32 leads body width 7 5 mm 50 287 1 92 16 9 Chassis Service Manual Block Diagram 18 39 ESSA CSSA ISSA TV1X SSA W1X 00 Lad 94 54 cLNOVLVG Sel 1014 84 sindino LNOSM Sel LNOMIE Szl 891HS 050 Sn8 24 NOILONNA JONV IVE O
72. ontroller software Bass is adjustable between 15 and 12 dB with 1 dB res olution and treble is adjustable between 12 dB with 1 dB resolution For the purpose of a simple control software in the micro controller the decimal number that is sent as an l C bus data byte for contour bass or treble is identical to the new contour bass or treble setting in dBs e g the l C bus data byte 8 sets the new value to 8 dB Extra bass boost is provided up to 20 dB with 2 dB resolu tion The implemented coefficient set serves merely as an example on how to use this filter The beeper provides tones in a range from approximately 400 Hz to 30 kHz The frequency can be selected via the l C bus The beeper output signal is added to the loud speaker and headphone channel signals The beeper volume is adjustable with respect to full scale between 0 and 93 dB with 3 dB resolution The beeper is not effect ed by mute Soft mute provides a mute ability in addition to volume control with a well defined time 32 ms after which the soft mute is completed A smooth fading is achieved by a cosine masking 6 2 5 HEADPHONE AUXILIARY CHANNEL The matrix provides the following functions forced mono stereo channel swap channel 1 and channel 2 or C and S in Dolby Surround Pro Logic mode Volume is controlled individually for each channel in a range from 24 to 83 dB with 1 dB resolution There is also a mute position 92 16 9 Chassis
73. ound 1 analog front end circuitry positive power supply voltage 1 decoupling analog front end circuitry resistor for reference current generator analog front end circuitry first general purpose 1 0 pin sound IF input 2 reference voltage analog front end circuitry sound IF input 1 ADDR2 second l C bus slave address modifier Vssp1 supply ground 1 digital circuitry VDDD1 digital supply voltage 1 digital circuitry CRESET capacitor for power on reset Vssp4 supply ground 4 digital circuitry XTALI XTALO crystal oscillator input crystal oscillator output P2 second general purpose 1 0 pin SYSCLK system clock output SCK lC bus clock WS 5002 l C bus word select 2 data output 2 001 l C bus data output 1 5012 l C bus data input 2 SDI1 l C bus data input 1 TESTI first test pin connected Vesp for normal operation MONOIN audio mono input TEST2 second test pin connected to for normal operation external audio input right channel external audio input left channel SCART 1 input right channel SCART 1 input left channel supply ground 3 digital circuitry SCART 2 input right channel SCART 2 input left channel positive power supply voltage 2 decoupling audio analog to digital converter circuitry 92
74. pen loop when the thermal protection is activated This signal can be used for blanking the picture tube Screen 92 16 9 Chassis Service Manual LIMITING VALUES In accordance with the Absolute Maximum Rating System IEJ 134 Symbol Parameter Conditions DC supply Vp supply voltage non operating flyback supply voltage Vertical circuit lO p p output current peak to peak value Vo A output voltage pin 7 Flyback switch IM peak output current Thermal data in accordance with IEC 747 1 Tstg storage temperature Tamb operating ambient temperature ly virtual junction temperature Rth vj c resistance Rth resistance vj ambient in free air short circuiting time Notes 1 flyback supply voltage of gt 50 V up to 60 V is allowed in application 220 nF capacitor in series with 220 resistor dependent on and the inductance of the coil has to be connected between pin 7 and ground The decoupling capacitor of VEg has to be connected between pin 6 and pin 3 This supply voltage line must have a resistance of 33 see application circuit Fig 6 2 16 maximum determined by current protection 3 Up to Vp 18V 92 16 9 Chassis Service Manual TDA2616 2x 12W Hi Fi Audio Power Amplifiers with Mute GENERAL DESCRIPTION The TDA2616 is a dual power amplifiers It has been especially
75. pplications Output power at R 320 dto 10 Po dtot 10 4 5V Po Channel separation at Rs 00 f 1 kHz noise output voltage r m s value at 1 kHz Re 50 Vno rms PACKAGE OUTLINE 8 lead DIL plastic SOT97 SOT97 1 1996 July 23 1 6 to 6 0V typ TYP max typ typ typ typ typ 3 2 mA 140 mW 70 mV 140V 35 mW 75mW 40 dB 100yV 92 16 9 Chassis Service Manual Fig 2 Output power across the load impedance RI as a function of supply voltage Vp BTL application Measurements were made at f 1 kHz 10 Tamb 25 C 7291367 Fig Output power across the load impedance RI as a function of supply voltage Vp in stereo appli cation Measurements were made at f 1 kHz dio 10 29 C 92 16 9 Chassis Service Manual CHARACTERISTICS f 1 kHz 32 Tamp 25 C unless otherwise specified PARAMETER SYMBOL Supply voltage Vp Total guiescent current Itot Bridge tied load application BTL see Fig 4 Output power note 1 Vp 3 0V 10 Vp 4 5V digt 10 640 Voltage gain Noise output voltage r m s value Rs 50 f 1 kHz Vno rms 00 f 500 kHz 5 kHz Vno rms D C output offset voltage at Rg 50 IAVI input impedance at Rs input bias current li Stereo applications see Fig 5 Output power note 1 Vp 3 0V
76. put signal 92 16 9 Chassis Service Manual CHARACTERISTICS Vp 5 0 V at pin 14 25 C sound carrier 32 4 MHz modulated with f 1 kHz and modulation depth m 54 IF input signal sound carrier V4 46 10 unless otherwise specified Symbol Parameter Conditions V44 13 positive supply voltage Vp1 note 1 V41 13 positive supply voltage Vp2 note 1 141 144 current consumption IF amplifier and gain control input resistance input capacitance minimum IF input signal RMS value maximum IF input signal RMS value gain control maximum AGC charging discharging current fast AGC discharging current gain control voltage Gmin Gmax IF bandwidth upper cut off frequency lower cut off V4 16 13 DC potential AM Demodulator V6 13 AF output signal RMS value 3 dB AF bandwidth upper cut off frequency lower cut off frequency note 7 THD S N weighted acc CCIR 468 3 DC potential Output resistance emitter follower with 0 5 mA bias current allowable AC output current 16 allowable DC output current Audio switch 7 9 13 AF input signal for THD lt 1 5 RMS value V8 13 S N ratio of audio switch reference signal in accordance with CCIR 468 3 at pin 7 9 is 0 5 VRMS 3 dB AF bandwidth upper limit THD at 1 input signal at pin 7 or 9 crosstalk and mute attenuation 20 Hz to 20 kHz DC potential input resistan
77. rma Default 0 Flof Txt 0 TR 0 DVD Start 0 1 Selected 0 Not Selected 92 16 9 Chassis Service Manual OptByte6 Default 00 UOC J Default 0 ignrSUP Default 0 ignrNDF Default 0 Pal BG DK 0 Pal L 0 Eco 0 WEB ST 0 WSS 0 TSL 45 Start frequency of the low band in MHz TEL 118 End frequency of the low band TSM 118 Start frequency of the mid band TEM 400 End frequency of the mid band TSH 400 Start frequency of the high band TEH 863 End frequency of the high band TBL 03 hex Value needed for switching to the low band TBN 06 hex Value needed for switching to the mid band TBH 85 hex Value needed for switching to the high band 16 9 4 3 Adjustment The CTV832U software uses two sets of parameters for the registers HP horizontal parallelogram HB horizontal bow EW EW width PW parabola width UCP upper corner parabola LCP lower corner parabola and IC EW trapezium They occur in the service menu for 16 9 screen with the listed abbreviations For the 4 3 screen there is a second set of these registers They occur in the service menu with the extension 4 3 i e HP4 3 HB4 3 Each register set must be adjusted under the right conditions i e the 16 9 settings are adjusted with a 16 9 picture the 4 3 settings with a 4 3 picture The inenu items EW PW UCP LCP TC HP4 3 HB4 3 TC4 3 and VX will only be in the service menu if the option 16 9 is set
78. rope by the American Forces Network AFN with European channel spacing 7 MHz VHF 8 MHz UHF and monaural sound The AM sound of L L standard is normally demodulated in the 1st sound IF The resulting AF signal has to be entered into the mono audio input of the TDA9875A A second possibility is to use the internal AM demodula tor stage however this gives limited performance Korea has a stereo sound system similar to Europe and is supported by the TDA9875A Differences include deviation modulation contents and identification It is based on M standard An overview of the supported standards and sound Systems and their key parameters is given in Table 1 The analog multi channel sound systems A2 A24 and 2 are sometimes also named 2 5 2 carrier Systems 92 16 9 Chassis Service Manual 2 1 1 ANALOG 2 CARRIER SYSTEMS Table 1 Frequency modulation SOUND SYSTEM STANDARD CARRIER FM DEVIATION FREQUENCY kHz MHz NOM MAX OVER 4 5 15 25 50 MODULATION BANDWIDTH SC1 mono DE EMPHASIS kHz ys 15 75 4 5 4 724 15 25 50 1 2 L 15 75 Korea 5 5 5 742 27 50 80 1 2 L 15 50 6 5 6 42 27 50 80 mono 15 50 6 5 6 42 27 50 80 1 2 L 15 50 6 5 6 258 27 50 80 Table 2 Identification for A2 systems PARAMETER Pilot frequency 54 6875 3 5 x line frequency 1 2 L R 15 50 2 KOREA 55 0699
79. rotection circuit is built in The MCL circuit is activated when the difference in current between the output terminal of each amplifier exceeds 100 mA typical 300 mA This level of 100 mA allows for headphone applications single ended SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT Vp supply voltage 4 5 18 V Pout output power V 12 V 160 3 0 3 5 W V 12 V 80 5 3 W Gy voltage gain 39 5 40 5 41 5 dB Gc gain control 68 0 73 5 dB la tot total quiescent current 12 V 22 25 mA THD total harmonic current Pout 0 5w w 0 3 1 NUMBER NAME DESCRIPTION VERSION 7057 0 DBS13P Plastic DIL bent SIL power package 13 leads lead length 12 mm SOT141 6 SYMBOL PIN DESCRIPTION sm U VC1 1 DC volume contol 1 m 2 not connected Via 3 voltage input 1 Mie H Vp 4 positive supply voltage Ve L4 Vi 2 5 voltage input 2 Vig 5 SGND 6 signal ground SGND 5 VC2 1 DC volume contol 2 7 TDA7057AQ OUT2 8 positeve output 2 PGND2 9 power ground 2 Ms OUT2 10 negative output 2 PGND2 9 OUT1 11 negative output 1 ouT2 10 PGND1 12 powwer ground 1 outi 5 OUT1 13 positive output 1 PGND1 22 OUT1 3 92 16 9 Chassis Service Manual positive output 1 input 1 DC volume control 1 negative outp
80. sed power dissipation PD 100 Pp Pp 25 f Ths 92 16 9 Chassis Service Manual ICM max 10 IC max tH 100 us 10 100 1000 VCE V Fig 12 Forward bias safe operating area 225 C Region of permissible DC operation Extension for repetitive pulse operation NB Mounted with heatsink compound and 30 5 newton force on the centre of the envelope 100 1000 VCE V Fig 13 Forward bias safe operating area Ty 25 C Region of permissible DC operation II Extension for repetitive pulse operation NB Mounted with heatsink compound and 30 5 newton force on the centre of the envelope 92 16 9 Chassis Service Manual BU2525AF Silicon Diffused Power Transistor GENERAL DESCRIPTION New generation high voltage high speed switching npn transistor in a plastic full pack envelope intended for use in horizontal deflection circuits of large screen colour television receivers up to 32 kHz QUICK REFERENCE DATA Parame
81. ter Conditions collector emitter voltage peak value collector emitter voltage open base collector current DC collector current peak value Ptot total power dissipation 25 VGEsat collector emitter saturation voltage 4 5 IB 1 6 A ICsat collector saturation current f 16kHz fall time Icsat 4 5 t 16kHz PINNING SOT199 PIN CONFIGURATION SYMBOL Pin Description 1 2 collector b 3 emitter case isolated e LIMITING VALUES Limiting values in accordance with the Absolute Maximum Rating System IEC 134 Parameter Conditions collector emitter voltage peak value collector emitter voltage open base collector current DC collector current peak value Base current DC Base current peak value Reverse base current average over any 20 ms period Reverse base current peak value Total power dissipation Ths lt 25 C Storage temperature Junction temperature THERMAL RESISTANCES Symbol Parameter Conditions Rth j hs Junction to heatsink without heatsink compound Rth j hs Junction to heatsink with heatsink compound Rth Junction to ambient in free air 92 16 9 Chassis Service Manual ISOLATION LIMITING VALUE amp CHARACTERISTICS 25 C unless otherwise specified SYMBOL PARAMETER CONDITIONS Visol Repetitiv
82. tp lt 1015 Power dissipation Tam lt Junction temperature Output Detector Parameters Test Conditions Collector emitter voltage Emitter collector voltage Collector current Collector peak current tT 0 5 b lt 10ms Power dissipation Tam lt 25 C Junction temperature Coupler Parameters Test Conditions Symbol Isolation test voltage RMS Total power dissipation Ambient temperature range Tam lt 25 C Vio Piot 55 to 100 Storage temperature range 55 to 125 Soldering temperature 2 mm from case t lt 10 s 260 92 16 9 Chassis Service Manual TDA9830 TV sound AM demodulator and audio source switch FEATURES Adjustment free wideband synchronous AM demodulator Audio source mute switch low noise Audio level according EN50049 5 to 8 V power supply or 12 V alternative Low power consumption GENERAL DESCRIPTION The TDA9830 a monolithic integrated circuit is designed for AM sound demodulation used L and L standard The IC provides an audio source selector and also mute switch QUICK REFERENCE DATA SYMBOL PARAMETER V44 positive supply voltage supply voltage alternative 114 11 supply current IF sensitivity RMS value for 3 dB AF signal gain control AF output signal m 54 RMS value S N ratio ace CCIR468 3 IF signal 10 A
83. ut Serial Clock Multybyte Page Write Mode C version Write Control W version Supply Voltage Ground 1 PSDIP8 0 25 508 150 mil Width Figure 1 Logic Diagram PBO PB1 PRE ST24x16 ST25x16 SCL MODE WC 92 16 9 Chassis Service Manual DIP Pin Connections ST24x16 ST25x16 PRE 1 1 8 Voc 2 7 MODE WC PBI SCL Vss 4 5 SDA Table 2 Absolute Maximum Ratings Parameter 08 Pin Connections ST24x16 ST25x16 Zia ss PRE Vcc PBO 2 7 MODE WC PB1 3 scL Vss 5 SDA Value Ambient Operating Temperature 40 to 125 Storage Temperature 65 to 150 Lead Temperature Soldering 508 PSDIP8 215 260 Input or Output Voltage Supply Voltage 0 6 to 6 5 0 3 to 6 5 Electrostatic Discharge Voltage Human Body Model 4000 Electrostatic Discharge Voltage Machine Model 500 Notes 1 Except for the rating Operating Temperature Range stresses above those listed in the Table Absolute Maximum Ratings may cause permanent damage to the device These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied Exposure to Absolute
84. ut 1 al TEMPERATURE STABILERI FROTECTION input 2 DC volume control 2 not signal connected ground Block diagram negative output 2 positive output 2 power power ground 1 ground 2 FUNCTIONAL DESCRIPTION The TDA7057AQ is a stereo output amplifiers with two DC volume control stages The device is designed for TV and monitors but also suitable for battery fed portable re corders and radios In conventional DC volume control circuits the control or input stage is AC coupled to the output stage via external capacitors to keep the offset voltage low In the TDA7057AQ the two DC volume control stages are integrated into the input stages so that no coupling capa citors are required and a low offset voltage is still mainta ined The minimum supply voltage also remains low The BTL principle offers the following advantages Lower peak value of the supply current frequency of the ripple on the supply voltage is twi ce the signal frequency Consequently a reduced power supply with smaller capa citors can be used which results in cost reductions For portable applications there is a trend to decrease the supply voltage resulting in a reduction of output power at conventional output stages Using the BTL principle incre ases the output power The maximum gain of the amplifier is fixed at 40 5 dB The DC volume control stages have a logarithmic control characteristic Therefore
85. vice Manual 0 Y delay adjustment for external sources 4 AGC take over CL 4 Cathode drive level 0 ACL 0 FCO 0 SVO 0 HP2 0 FSL 0 OSO 0 0 FFl 0 TV 0 AV 1 0 AV 2 0 AV 2S 0 AV 3 0 AV 3S 0 AV 0 OptByte1 Default E3 PAL BG Selection PAL BG 1 PAL DK Selection PAL DK 1 PAL I Selection PAL I 0 PAL M Selection PAL M 0 PAL N Selection PAL N 0 NTSC M Selection NTSC M 1 NTSC 443 Selection NTSC 443 1 SECAM BG Selection SECAM BG 1 1 Selected 0 Not Selected OptByte2 Default 07 SECAM DK Selection SECAM DK 1 FRANCE Selection FRANCE 1 WEB Enable Disable 1 0 PaIBG Scr When the PalBG Scr selected TV searches only PalBG Otherwise it searches all 0 AV2 Selection AV2 0 1 Selected 0 Not Selected OptByte3 Default E8 0 JR 0 HP 0 VolBar 1 Sub Wof 0 Presets 1 Lock 1 Hotel 0 When the Hotel mode selected It s impossible to nter menu settings It selects the Hotel mode 1 1 Selected 0 Not Selected OptByte4 Default B8 16 9 Set 16 9 mode active 1 110 Selection 110 90 Tube 1 0 Hpol Default 0 Vpol Default 0 Field Default 1 FE Out Default 1 Sw on When the power on the TV it Enables or Disables Standby Mode 1 0 Vg Check Default 1 1 Selected 0 Not Selected OptByte5 Default 09 Clock Enable Disable Clock Menu 1 AM PM 1 AVL Auto Volume Level 1 0 1 no
86. ystems 92 16 9 Chassis Service Manual 2 1 1 ANALOG 2 CARRIER SYSTEMS Table 1 Frequency modulation STANDARD SOUND SYSTEM CARRIER FREQUENCY MHz 45 FM DEVIATION kHz NOM MAX OVER 15 25 50 MODULATION 561 BANDWIDTH DE EMPHASIS kHz ys 15 75 4 5 4 724 15 25 50 1 2 L 15 75 5 5 5 742 27 50 80 1 2 L 15 50 6 0 27 50 80 15 50 6 5 6 742 27 50 80 1 2 L 15 50 6 5 6 258 Table 2 Identification for A2 systems PARAMETER Pilot frequency 27 90 80 1 2 L 15 50 54 6875 kHz 3 5 x line frequency A2 KOREA 55 0699 kHz 3 5 x line frequency Stereo identification frequency 117 5 Hz line frequency 133 149 9 Hz line frequency 105 Dual identification frequency 274 1Hz line frequency 57 276 0 Hz line frequency 57 AM modulation depth 50 2 1 2 SATELLITE SYSTEMS An important for satellite TV reception is the Astra specification The TDA9875A is suited for the reception of Astra and other satellite signals Table 3 FM satellite sound CARRIER FREQUENCY MHz CARRIER TYPE 6 50 MODULATION MAXIMUM INDEX FM DEVIATION kHz 50 BANDWIDTH DE EMPHASIS kHz ys MODULATION 15 50 7 02 7 20 15 adaptive 7 38 7 56 15 adaptive 7 74 7 92 8 10 8 28 Notes

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