SERVICE MANUAL
Contents
1. LED3 NU LED1 AUDIO R GND AUDIO L I AMP MUTE AMP STBY REMOTE SUB MICRO CONTROLLER TPWR2 AMP MUTE AUDIO MUTE NN VSS TPWR1 212 _________ 20 403 16 AQ3 PROTECT2 efje e NS NU PROTECT 1 BACKLIGHT SW ro 1 PROTECTS 2 2 DIGITAL 9 9 PROTECT2 PROTECT 1 203107 10 16V 0 e m OEE C Of 103102 BD4723G TR 22 25 DIGITAL 3 9 AUDIO MUTE DIGITAL 1 9 V COM 8 17 gt NU D 100 F29 II TPWR2 2 HDMI RESET S VIDEO SW IN2 NU POWER KEY MONITOR lt NU 15 H 2 5 NU T2C SCL B 100 2 NU NU AMP STBY FLASH WP NU 1 HDMI RESET VREF XOUT AVSS C 27 8 27 30 R26 R29 T26 S VIDE SW INE NU 29 AC30 AD27 AD30 27 0 PROTECTS AF28 AF29 AG28 AG30 AJ 8 AJ30 19 03 IF AGC MOV DIGITAL 9 9 220 D PWR SEG1 BACKLIGHT SW lt lt AUDIO gt Xe e AUDIO R 22 02 DIGITAL 5 9 AL CONTINUE DIGITAL 4 9 AUDIO SW1 AUDIO SW2 AUDIO SW3 DIGITAL 2 9 T2C SCL A 50 CN3301 l CONNECTION GND2. 0 0 W 00 O OOO SI NI 411 Ni 3 20070911 13 7 Ret Ne Deep Panne 0 IC701 IC HIGH VOLTAGE RESONANT CONTR NSZBAOSSS312 L6599N SEWZE FET MOS 2SK3561OJIDSSIOOUA QFWZ2SK35610 NOSIKTATAS7P NORTE NORTE NOS4KTC I9sP mr ROXaIATZ007 ON 28 O O O O OO II NI NOD ON NI BRI gt R726 CARBONRES 1AW J100k HCOXATZOIO4 R728 CARBONRES 14W J100K0 HCXAWTZOIO4 R704 77 R709 R72 R73 RI4 R715 R79 R720 RA R722 R723 Ar R735 R726 8727 R728 R753 R754 R760 RI R762 R763 R764 R765 R766 Ro R768 A81H1EL ret Ne Panne BC784 BEAD INDUCTOR FBR07HA121TB 00 LLBF00ZTU021 BC785 PCB JUMPER D0 6 P5 0 JW5 0T SCREW B TIGHT D3X8 BIND HEAD GBJB3080 1701 TRANS POWER ETS42LZ196AD LTT4PCOMS004 SIDE JACK CBA Desorption Panno _ Consists of the following JACK SW DIN PCB S YKF51 5379V JYEJ040JC002 20070911 13 8 A81H1EL
3. M LINN 0 TWLISIGC Vad AlddNS li 11 os90 PEL ENE 9 eo Sure AG NO d 06221 929020 o O Treo 00921 Dv Er 8 Fe 2 L AER DE ee ret M pu e Rr LOLENO D 020 0020 1 eee 700 e 91 _AG NO d 91 Pos 167 11 21 SANILNOO nen ACER OU ACE 20923 21201180 1 AG NO d 8 A9 8 OLZO OLZOI een 4 men 16 NESW ne 03H SMS i 995 02221 2220 42200220 91931Otd 910410 4 zz 22 Q Z0LEND Z02ND H3MOd YSLYSANI C e nn 90 NO ee ms sm mm mm mmm m Sms a mmm imaman 5 m mmm m m mmm smn sms m pcm e Se AND 109 si Joy sued 10 941 ALON 1n338VO 38 LOH A81H1BLP2 SCH
4. 011 101 01 10 PROTECTS seta E 5 902 e SPEAKER CLN802 E I SP90 1 e SPEAKER 9 SP L AUDIO SIGNAL POWER SUPPLY CBA os POWER 2 3 P ON H1 os 1 POWER 1 3 PROTECT6 I JP202 AL s ay POWER 2 3 AMP 13V PROTECT3 1 1 8803 51K C8 J115 08 1000 25 1K dos JUNCTION CN204 CBA CN100 Eh 71 o lt EI LEE VCCP N 1 3 VCCP2N 2 PWM2 ed DRIVE E 775 7747 774 IC800 BD5422EFS E2 UE TO DIGITAL MAIN CN202 CBA UNIT CN3702 P am VCCP1P 1 1 e m 4 LED3 NU 2 55 2 oo m m gt gt e 5 Sissel Z O D F Z Z O P O gt O zicizicizim zilciciziciziciz oO Oj Of Of Of O m rm 2 Q800 KTC3199 GR AT P SWITCHING gt gt 22 22 Di ojo 2 rm 3 VOLTAGE CHART CN202 0080 O A81H1SCP3 Jack amp Side Jack Schematic Diagram VIDEO SIGNAL 2 AUD
5. _ R3708 0 R3502 C3505 C3507 C3511 C3513 1 pn 2 0 1 C3502 4 3506 3508 3509 3510 C3512 4 3515 4 03516 ih Jo Joi Tee ques E NE SN S 02 00 99 89 27 86 85 94 93 52 81 GO DIGITAL MAIN CBA UNIT DVI DATA23 ANN 83564 33 DVI DATA16 83562 33 DVI DATA17 83563 33 DVI DATA18 83564 33 DVI DATA19 83565 33 DVI DATA20 83566 33 DVI DATA21 83567 33 DVI DATA22 R3560 33 TP3504 87 89 85 82 83 82 89 79 9 77 76 75 74 73 72 03 70 59 59 67 69 69 zz e a e ea Q amp z z a Q 99 8 9 111111141 OUTPUT 83717 FORMATTING TEST PATTERN GENERATOR AVDD ADC CLAMP ADC C3501 rU NE E C3503 SYNC 17 1 MUX PLL PROCESSING 7 1 C3504 I MUX 14 AvOD ADC al 0 1 REXT 83547 29 90 21 NU C3518 I 22 GND 23 AVOD PLL AVDD ADC CLOCK SYNC GENERATOR STRIPPER VREFP 5 t tits Pd 0 8 P 4 4 103501 ES a 6 2 2 2 amp ce MST3580M LF 170 VIDEO Ane et L l L 13 3749 7 10 16V TERM a la 8 5 89 ae oe ore 0 10 m m 3522 C3523
6. TINON d01 1VNDIS 2 1VN9IS BP Z O VIVG H ZIV SL O SSIHAAV 6211 2211 827 A 12105484 2 2 en vr ly cXV rv Lev 2 0 WLWO 7 0 viva INVHOVIG MOO 14 c Olanv OL 7 TWNOIS OlANV INAH ALA 8 LINN 0 NIVIN TVLISIG MOO 19 IAG ONAS H IAG ONAS A IAG 55 5 IVLIOIG 8 17 82 EB D e E eh NAA J 71 E 19 x10 2 E viva 6 69 JM 10 SQWNL HATO SAaNL 9 9 12 4 8 voormr ME en D 1 9 6 2 4 NN loot BE Z 02 vas n BOY 2 vas n TOS NL TOS NL O3QIA HANNL LOOENL gt 0 LNI A OAGIA S LNI O O3dIA S O 4 gt HNFO3GIA _ lt gt eNFA O3QIAS gt 5 NI O3GIA 42018 1997135 o O3GIA OL P 39019 1Ad ONAS H IAG FO
7. 2 li J7002 Q I gt e gt 5 GND 17121 t 37010 x COMP1 Pb NS N x N N lt R7056 IF S 2 e O gt gt 15 CT E 07105 GND O R7221 42421 J7056 JE A 7017 DE E D 97106 15 lt 1 m E J7006 22 Sy e 11005 o GND gt 97102 gt e RT201 A in 97103 L e e 4 y il 1 zn 1 07002 C7051 J71 06 J7104 GND J7064 5 0V gt 1 N C7202 5 0V J7042 5 0V 7039 81 0 01022 1 8 21 Jack CBA Bottom View Far cm CN7001 M CN7001 14 0 0 22864 7001 as zo 29 Suri e Om r ET 1 16 P 87204 87202 EM ce gue na 87201 rs PIN 7 OF Ss z x a 2 57007 a CN7001 2 x 82 222 S at 57 J7012 o xz ss C7206 uw 9440 5 JACK SEL L amp i 5 Z c GND ol 7123 e CN7001 A JK7003 a 1 zr 2 x JK7007 PIN 8 OF
8. 55 0 ADC3 AVSS 1 ADC1 AVSS 0 ADC3 AVSS 3 ADC1 AVSS 1 1 55 3 NU NU FS DVDD FS DVSS FS AVDD FS AVSS NU NU VI AVDD33 C3338 ee 13317 1608 5102 1 NU NU NU NU MATRIX NU NU 100 83413 100 TU SDA TU SCL HOT PLUG 4 HOT PLUG2 NU NU NU NU E2PROM WP NU NU NU NU NU N lt 83421 100 8 DIGITAL nu SIGNAL NU 2 PROCESS _ NU LVDS PD 9 3 58 NU 1P3311 R3426 100 TO DIGITAL TO DIGITAL NU 11 MAIN 1 9 3 9 NU 1C3301 1 7 IC3301 3 7 8 15 13013 C3013 L3006 C3008 C3003 0 0 39uH 33 1000 3003 3007 3014 C3014 L3008 23009 0 39UH 0 0 0 39uH 33p C3004 pu 2 03001 504081 BUFFER Q3003 25 4081 BUFFER Q3002 25 4081 BUFFER R3014 0 DIGITAL 4 9 ED SIF OUT CAE DIGITAL 2 9 E2PROM WP ERES DIGITAL 9 9 1 2V DIGITAL 8 9 IF AGC MON AFT VOL PWM CONTINUE 93715 213 DIGITAL 1 9 m LVDS PD PC AUDIO IN 93712 JK3701 D SUB CONNECTOR 04007 Den 18 155400 15 10 5 DIGITAL 5 9 PC R IC3701 BR24LO2F WE2 R
9. MES 17068 mi 7107 1204 R721 1 23 OF 87104 GND 7001 PIN 34 OF CN7001 Se 8 22 BA81H0F01022 1 Inverter Power CBA Top View NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal C720 CT 3 vs 412 e EE d N lt gt ih N b al E LL 2 5 9 5 lt NOT 6ND m gt N 0706 345V J7074 RTO R703 R702 J7097 HOT GND 715 C705 C703 EEE Ws lt c c c D704 C712 5 5 Irre a a I R707 e C719 e Ss R704 4 2 _ z NAN Because a hot chassis ground is present in the power supply circuit an isolation transformer must be used Also in order to have the ability to increase the input slowly when troubleshooting this type power supply circuit a variable isolation transformer is required BC783 z m 10 sa CN752 0755 GND J7095 T701 dP C784 47089 GND 0752 BER R727 C785 gt JE J O C 5 C731 a Ns J7111 HOT GND gt 307881 5 R723 gt e RTI D762 11100 lt 2 Pie J709
10. S oO Q 99 5 9 JJ J 0101 0101 RNO21RODP004 RCX4JATZ0103 2 ini ololo 9 VININ D S NI PHOTO COUPLER verme NPEBerMF CARBONRES VAWJ4 kn IC POWER AMP BD5422EFS E2 QSZBAOTRM113 R226 RCX4JATZ0103 _ FICTERLUBGOOZva01s ____juiecoezyms Im 40220 RCXAJATZ0273 O 05 1 OI 5181 81818 il L804 INDUCTOR 22uH K 5FT LLARKBSTU220 R243 20102 TRANSISTOR KTA1267 GR AT P NQS1KTA1267P 20151 TRANSISTOR PB FREE 2026 NQEYKTC2026P RRXAJR5Z0473 TRANSISTOR 25 2120 2 F T QQSY2SC2120F RCXAJAT 20682 TRANSISTOR 25 2120 2 QQSY2SC2120F 570470 rir Q O 5 TRANSISTORKTDIJZCATP ________ NOSCKTD1347P CHIP RES 1 10W 20102 TRANSISTOR 985 2A FET MOS25K3561 Q IDSS100UA OFWZ2SK3561Q RESCEMENT5WJO330 50 FETMOS2SK35610 IDSSI0UA QFWZ2SK3561Q A__ RESCEMENTSWJ0390 RwO05R39KA050 Q50 O O O O O IO O O 9 N A 5 91 Ji 010101 9219 012
11. lt 2 2 10 2 Oj lt j lt lt O Oj lt f O C3397 6 P ONt9V P ON 6V 163602 C3621 63622 C3655 I9 6 3 0 1 63629 at C3630 03612 70 1 33076 TO 1 E ues gt C3399 C3398 gt 18 P ON EV 25 20 AL 3 1 5 C3402 C3401 T L3306 C3652 C3653 ME spun P E m we os 4 7K DPVDD 43 3301 lt 32 54 MHz 3 mes Co P C3378 BP DPVDD1 2 K4 lt 3325 6 LPVDDHA 22 C3435 C3437 p 10 3 FE OSC AVSS CONTINUE re T C3428 C3427 3 3K LCD 12V roves E Jo 43 3V CONTINUE DIGITAL 8 9 ALt3 pz lt gt u IC3603 BD3508EKN E2 2 5V REG EN SAN T LPVDDA 41 4 03725 Toa DIGITAL 6 9 5V VT 33V 103604 13 3V SI 8008HD TL 2 5V n 1 2 223 ib 163302 E26 NU BD47236 TR RESET 83386 C4282 RESET 10K 330 D 6 C3361 C3360 SW330 4 SST0101AL038 li R3383 R3384 0 j Nu R3385 3 01 20 163605 BD3508EKN E2 1 BV REG XD F8 F14 F16 F 19 JAD K25 L 15 L 16 M15 M16 N15 16 P15 P16 R15 R16 T15 16 015 016 V15 V16 15 W16 15 16 25 AC25
12. 79 Ce 99 4700 6 16220 1 POWER 1 3 LD1117V LCD 12V 3 REG 19 DIGITAL MAIN cn201 CBA UNIT CN3604 arg PROTECT2 Q220 KTC2026 Y P SWt5V D220 MTZJT 775 6B 2 7V No Voltage MTZJT 773 1 o9 POWER 3 3 13 4 14 3V KTC2026 Y P P ON 6V 228 Swt1eVv Q222 KTA1267 GR AT P Swt5v uem az NNNM 5 ef 328 L 1 POWER 3 3 43 KEY IN1 0211 KTA1267 GR AT P SWITCHING 10210 431 SWITCHING CONTROL 0221 KTC3199 GR AT P SWITCHING 0210 0 KTC3199 GR AT P SWITCHING TO DIGITAL CN200 JVCBA UNIT 3701 re keine pen fs x ef Emz ro INVERTER POWER CBA CN206 NCN753 8286 17509 qo sw 0240 155133 0240 25 2120 SWITCHING D241 MTZJT 7716B NL 2 H J L 8 4 A81H1SCP2 Power Supply 3 3 Schematic Diagram R CH L CH DIGITAL CBA UNIT 3705 CN203 GND NU GND 3 GND 4 GND GND GND 2 2 12 2 2 gt 2 2 1 2416141601416
13. a R248 R247 e D517 y 8243 R240 lt 611 6059 m N wo q 0250 S 0 gt TN gN lt 7758 FH500 0 5 0522 a PT 54503 2 054 601 C520 ALL 3 3 5V C230 2 AC600 CN204 5 502 C231 N oo 20 BA81H0F01012 1 e szu 5754 FIR 8964 8 Jack CBA Top View J7012 JACK SEL L 27013 52 470655 CN7001 40 J7064 HP R 11063 HP L 39 J7058 GND GND 437034 91038 GND 27043 J7066 TES 7570017 JACK SEL L 47028 GND 41122 97031 51 C7001 957002 r R7000 2 gt R7031 91 5 07002 e C7003 GNDD L 271025 ola 17051 5 0v 11026 9 0 771052 CVBS2 R J 701 9 COMP2 R JACK SEL R CVBS1 R 47018 71057 37011 52 AUDIO SW4 7055 A1015 S2 DET GNDD 42 ES J7054 om HP DET 07001 m gt n J7020 COMP2 L 55 R7013 J7049 CVBS2 L 7023 SPDIF OUT 17015 27048 x 1 S Hi 37116 17117 N LO e lt lt t C7046 Go 1 17001 27008 m C7045 CN7002 270 GND 87086 R7084 77037 e gt
14. 14 AE 167 AE 18 12 13 18 20 F6 66 AAS DIGITAL 8 9 ABB ADS 025 AE19 AE25 D PWA SEQ1 27 626 H6 J6 426 26 LB L11 L 14 RESET L17 L20 M11 M14 17 20 11 14 03602 155400 N17 N20 6 11 14 17 20 P25 q PROTECTS R11 R14 17 20 11 14 17 20 UB 411 14 417 120 11 14 V17 V20 5 11 14 17 20 Y6 11 14 17 20 AAG ABB ADE 7 2 Pe Oi amd z 8 18 A81H1SCD9 Power Supply CBA Top View CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F500 is blown check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail gt _ JP512 501 R517 R518 0500 CAUTION For continued protection against risk of fire replace only with same type 8A 250V fuse 250V ATTENTION Utiliser un fusible de rechange de m me type de 250V Because a hot chassis ground is present in the power supply circuit an isolation transformer must be used Als
15. 2 TX1E CLOCK TX1E CLOCK 83445 0 83437 33 66660 NU VDDR4 1 VDDR4 2 TO DIGITAL MAIN 7 9 _ IC3301 5 7 VDDR5 1 DIGITAL VDDR5 2 MAIN 6 9 IC3301 4 7 DATA SERIALIZER VM MMH NM 42 43 48 11 TX4E DATA3 TX4E DATA3 V CO GND GND C3423 C4281 LCDt 12V 1 1 LCDt 12V LCDt 12V LCDft 12V G C Ol au m wo 0 0 Te tO 0 Te Te Q a al au cu cu au rat CONTINUE Ow on on on on on on on DIGITAL 9 9 m LCD 12V Te LO aV ao quo au 3 NO TO am am EPIS DIGITAL 6 9 VDS PD Eo E DIGITAL 8 9 V COM 194 DIGITAL MAIN UNIT 8 10 A81H1SCD1 Digital Main 2 9 Schematic Diagram 1 NOTE The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into seven and shown as 1 3301 1 7 IC3301 7 7 in this Digital Main Schematic Diagram Section D 1 5 TAL MA N C UN I Tie T 10608 1 T T 10008 J T C3217 4 3203 C3234 3235 C3235 Cana l I T 1 1990 C3239 C3240 03241 C3242 1 T 1 7 p 7 DIGITAL 7 9 3 L3 2
16. 5 2 TEST MCLK 1K Loas r7 TE Tee by E ne Er MEM V25 3 LDGS NU gt 3 13 LDM VDDR1 007 DDR DGA6 gt DDR DQA7 DQ6 F1 gt DDR DGA2 R3403 33 AH5 NFCLE ae 83404 33 2 3210 0320 004 DDR DQA3 5 gt DDR DGA4 FWE H3 lt R3406 33 4 DDR DGA 4 ICD Gig oa 7 gt DDA DGA5 001 62 83408 33 MDR e DDR DGAO 3 NFRY BY NU __ 164 NU NFIOO POWER KEY MONITOR Lj RESET VADC ee pt ttt lll vero LL 163202 DIGITAL AT24C 128 POWER KEY MONI TOR MEMORY I DIGITAL 6 9 E2PROM WP DIGITAL 5 9 I2C SCL A RESET VADC 1 00000 DIGITAL 8 9 01 17 DIGITAL 8 9 m 7 A F20 22 F23 26 25 26 M25 M26 N25 26 025 V25 V26 25 W26 25 AA25 18 25 18 24 18 24 018 024 F21 8 11 A81H1SCD2 Digital Main 3 9 Schematic Diagram 1 NOTE The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into seven and shown as 1 3301 1 7 IC3301 7 7 in this Digital Main Schematic Diagram Section AUDIO SIGNAL DIGITAL MAIN CBA UNIT C3818 amp n3812 127 EBD 43K 1 10330113 7 215H4EALA11FG CaN i SIGNAL MAIN MI
17. ES CONTINUE DIGITAL 6 9 DIGITAL 3 9 T2C SCL A I2C SDA A 14 1 usa lt NU B3456 283457 CONTINUE NU 2 3 3K 53 38 DIGITAL 4 9 12C SCL 8 T2C SCL B _ NO CONNECTION CONTINUE DIGITAL 7 9 2 DIGITAL 2 9 FLASH WP DIGITAL 5 9 S VIDE SW IN1 22 20 CONTINUE a DIGITAL 3 9 AUDIO SW5 A81H1SCD8 Digital Main 9 9 Schematic Diagram 1 NOTE The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into seven and shown as 301 1 7 IC3301 7 7 in this Digital Main Schematic Diagram Section CONTINUE DIGITAL 5 9 CONTINUE P ONTSV DIGITAL 7 9 3 3 _ CONTINUE 1 8V _ ere 3 3V lt gt m DIGITAL 3 9 A lt CONTINUE DIGITAL 7 3 5V DIGITAL 6 9 DIGITAL 3 3 N C3409 C3408 2 3407 L oW 100 4V 1117 DIGITAL 5 9 C3412 C3411 C3410 2 5V Ti Ti 103604 PQ1LAX95MSPQ 5V REG TO POWER pre CN3601 CN20 2 PROTECT1 VT 33V i IC3301 7 7 215H4EALA11FG 7 SIGNAL peered MAIN MICRO CONTROLLER 2 LCD 42V NU 2 7V C3415 C3394 Ti U oe Oye
18. INAH L HOLO3NNOO HOLO3NNOO ans a u dS 4 dS ZO8NO uaMV4ids c06dS ol 745 1 dS 08 45 L06dS eo Q dii Qquoo OV 0092 V82 NOILONNA AG E 1 SARE v90119 VAD HOSN3S VIOL 1O 0110 4 01 2 6 m lt m gloro 6 01 V82 NOLLONNF OOLNO LL ALOWAHY 01 AG et 6 031 S LL 01 6 8 Z 9 S 6 vOeND V82 L lor NN rL 2 AN 66 L AN 1 nn 85 21 NN 26 LL NN LL S 96 0L QNO 01 9 se 6 ZNI HJOIONY 6 ODIO L 22 039 rE 8 8 8 ZNI MS OSQIA S L nr oianv 4 wove oNI 6 zumoaans 9 9 18 S S ZNI NN r t 62 2NFA O3GIA S 110 1 0111 82 2 oNrMS O3dI
19. 2 Do not supply hot air to the chip parts around the flat pack IC for over 6 seconds because damage to the chip parts may occur Put masking tape around the flat pack IC to protect other parts from damage Fig S 1 2 3 1 TVN SN 3 The flat pack IC on the CBA is affixed with glue so be careful not to break or damage the foil of each pin or the solder lands under the IC when removing it Hot air Flat Pack IC Desoldering Machine Masking Tape Tweezers Fig S 1 2 With Soldering Iron 1 Using desoldering braid remove the solder from all pins of the flat pack IC When you use solder flux which is applied to all pins of the flat pack IC you can remove it easily Fig S 1 3 Flat Pack IC Desoldering Braid Soldering Iron Fig S 1 3 Lift each lead of the flat pack IC upward one by one using a sharp pin or wire to which solder will not adhere iron wire When heating the pins use a fine tip soldering iron or a hot air desoldering machine Fig S 1 4 N Fine Tip R Soldering Iron Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 Release the flat pack IC from the CBA using tweezers Fig S 1 6 TVN_SN With Iron Wire 1 Using desoldering braid remove the solder from all pins of the flat pack IC When you use solder flux wh
20. END 27088 des A 12 7077 us J 3 GND J7087 HOT GND 2 C752 C720 N 11 amp 8 NA 3 0702 99 17114 N gt 9 5 17113 HOT GND 07111 C753 d 2 4 R723 e 37100 lt 1 e Oller 8 1 701 o N 2 8769 e Jt 707 23 2 C719 7092 D757 C762 o 8761 o 3 o ee ing a RTECS d GND J7091 R762 Ir HE e R766 a L9LM 20131 gt 8 4 0 E 8 24 81 0 01022 4 Function CBA Top View Junction CBA Top amp Bottom View BA81H0F010 2 GR PATTERN at 1 P Ue FS 885555955555 5 BA81H0F01012 4 BC102 00 11 N nn 1 810112 SELECT EJECT OOOO A B C D 81 1012 4 Function CBA Bottom View 4 CL106B PATTERN 59113 AGING 59112 WT 02 BABIHOFO1012 2 on 3 E O 8133 R132 R130 1 8129 81288121 N R126 1 SW109 SW108 5810 11 05 58104 SW103 PU SW1 01 FR STOP PLAY SETUP voL DOWN VOL UP CH DOWN CH UP INPUT POWER SELECT 81 0 01012 2 8 25 IR Sensor CBA Top View Side Jack CBA Top View Ge 1 JK7501 JK7502 C 2 G4 JK7503 74 CL1 06A Side Jack CBA Bottom View IR Sensor CBA
21. Sis 626 N 5 5 J m gt N gt lt e 59 8 ALL 3 375V E o 5 s 5 5 6025 5 JES 1 lo A E o N 0668 duh b L290 8 5 e a N e 4 P N In 9 2 N z E 0251 2 5 gt I 5 k So e amp R266 8 5 0 49 J167 oro So ve 8 EH 2 z e gt o7 00 8258 C661 e x gt a 3 GNDA2 P ON 5V J179 3 lt 241 zo N N m e 8255 27 n 8 LJ 5 2 25214 ee zi mm 2 Glo 9 lt lt 5 S Sal als J J174 w gt a 2111 5 en HoT GND ET Y e x m 2 o 9 GNDA2 e J173 z D507 GNDA2 ee 3 e gt ME JF N C502 Val J170 gm gt n J168 xU t ee J169 T 27 EH ALL 3 3 5V 2 EE a g uM 0671 IU P d L 5 e P ON 12V 1 m J184 JP600 R501 d 0 3 d 4 9 600 70528 0 e J158 15207 z 9 1 1155 y 8 4 Cn 11 R600 N gt 6514 N J153 oe e A P ONSV ee 6204 HO
22. Wi LNHNOdWOO gt 90 29 2 4 gt i 5 4344nd 9 LOOZMr om ozan OAIN LOSES ae 200 O 0 Y 07 J z ZNFALN3NOdIOO 2 MENTRE INI d LN3NOdIOO 8 a INFGd LNANOdWOO 2 m s INFALN3NOdWOO Mover 4015 LNI A OACIA S 22 I oO E 02 211 ZNI OAGIA S ZNI A OAGIA S ZNIA O3GIA S 05 i 7 NI 0 O3QI S v L 5 11 42 S ZNI O3GIA 96 revere S LOLEND LOOZNO vz00Z10 ZNI O3GIA zoszyr eee ee gt A81H1BLVIS 7 2 Audio 1 Block Diagram LINN 0 NIVIN 1V LIOIG SIMS OIGrIN MS Olanv EMS OIONV WALSAS OL ZMS OIGNV o gt gt 6 7 20820 u oianv uana 01820 1937138 LNdNI 20822 N N 74 NN d 4 N N 4 N 1VN5IS S 431114 100 dvs 431114 N 4 4 lt INVHOVIG 2014 2 OL EEE 11850 193138 LN
23. gt Used to indicate a test point with a component lead on foil side e Used to indicate a test point with no test pin Used to indicate a test point with a test pin 8 2 A81H1 SC Power Supply 1 3 Schematic Diagram CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit CAUTION For continued protection against risk of fire NOTE If Main Fuse F500 is blown check to see that all components in the power supply replace only with same type 8 250V fuse The voltage for parts in hot circuit is measured using circuit are not defective before you connect the AC plug to the AC power supply 250V ATTENTION Utiliser un fusible de rechange de m me type de 8A 250V hot GND as a common terminal Otherwise it may cause some components in the power supply circuit to fail C524 680P 2KV TP500 345V TO INVERTER cnsoo 00ZY2015 96 HOT GND 22 C532 100 2200P 400V 500V 1 0502 501 0503 2563561 8506 0504 0507 A510 SWITCHING 2 0040 ERAS N SA503 SURGE ABSORBER 21545 0526 C523 TO INVERTER POWER CBA 8 2M T 1000P 1000P CN501 1 2 250 250V CN702 SA504 N WTAE SA502 SURGE ABSORBER Q508 KTA1267 GR AT P OVER CURRENT R521 PROTECTOR 180 0500 1347 DRIVE 8 2 10 12500 05
24. 4 100 NO aLNW NO 310 70850 50850 m 100 41 4486 16 2 no o e 2 A callie Bhs 82 1 et 800 LOOZNO 04 NO PEDEM AlddNS eT SE dO 508591 32018 JOHINOO A819 dWV WALSAS OL 09 LO8N19 H3MOd 0083 y 42 1 2 lt o 2 1OH1NOO s Ha NOL dINV dO 608591 20822 N lt lt A O0 M LINN V8O TWLISIG INVHOVIG WALSAS OL INVHOVIG MOO 18 G97 OL TWNOIS OIGNV INAH ALA N oV Ax 55 5 TVLIOIA Vr OIGNV olanv ex lt lt gt N lt Yoy lt cN SS300Hd IVNDIS 1VLIOIQ 105551 On jl Olanv 20822 INVHOviIG OO 19 OL A81H1BLA2 7 4 LCD Drive Block Diagram _ si 0 ss3uaav Pd Sd 8N ZN EN ZN 8IN IN SWZN ETLI 6H ZH EH LH 95 29 64 14 SL 0 viva 89 25 6 18 INVHQS 021 AHOW3IN HSV 05891 ote 90 YSLLINSNVHL 10272
25. I JJ 41 4 012 Y nn N O 9 OO B amp gt N 3 Aax OSO 5810 1 410 018 o 1 eo 91 v 2007091 1 13 3 A81H1EL Reto SOLID RES UL 1 2W 3 3M SOLID RES UL 1 2W 8 2M 20070911 13 4 Ret No Bein Panno CHIP RES 1608 1 10 00 CHIP RES 1608 1 10 0 O RRXAZR5Z0000 AC CORD LP 11W amp PT218P K90A amp S B19 HEAT SINK EAL ASSEMBLY A81HOUH FUSE 8A 250V PB FREE 0215008 MXP A81H1EL ret Ne Desenpten Panne SA503 SURGE ABSORBER RA 452MS V7 Y PDVAEAODCA52 SA504 PCB JUMPER D0 6 P7 5 JW7 5T T6004 TRANS POWER 7736 LTT3PCOKTO33 FUNCTION CBA Rete Description Panno FUNCTION CBA Consists of the following CAPACITORS CHIP CERAMIC CAP 1608 F Z 0 1uF 50V CHD1JZ30F104 CHD1JZ30F104 CHIP CERAMIC CAP 1608 F Z 0 1uF 50V RESISTORS ROXUATZOVS SOT IR SENSOR CBA Description Panno IR SENSOR CBA Consists of the following CAPACITORS CHIP CERAMIC 1608 F ZO 1uF 50V CHD1JZ30F104 CHD1JZ30F104 C103 CHIP CERAMIC CAP 1608 F Z 0 1uF 50V C104 CHIP CERAMIC CAP 1608 F Z 0 1uF 50V CHD1JZ30F104 CHD1JZ30F103 CHIP CERAMIC CAP F Z 0 014 F 50V ELECTROLYTIC 47uF 16V M H7 CE1CMASSL470 NO N j N DO O O I S o LED 333GT E LED L 53HT NPHZ00333GTE NP4Z000L53HT
26. N RESISTORS CHIP RES 1 10W J 10 O CHIP RES 1 10W J 220 O CARBON RES 1 4W J 1k O CHIP 1 10W J 3 3 CHIP RES 1 10W J 100 O CHIP RES 1608 1 10W 0 O PCB JUMPER D0 6 P5 0 MISCELLANEOUS PCB JUMPER 00 6 5 0 WIRE ASSEMBLY 003 11PIN AWG26 WIRE ASSEMBLY 004 4PIN AWG26 RRXAJR5Z0100 RRXAJR5Z0221 RCX4JATZ0102 RXAJR5Z0332 RRXAJR5Z0101 RXAZR5Z0000 JW5 0T JW5 0T WX1A81H0 003 WX1A81H0 004 20 2 20 JJ O cO 100 101 106 20070911 13 5 RS101 PHOTO LINK MODULE KSM 712TH2E USESJRSKK044 JUNCTION CBA Panno JUNCTION CBA Consists of the following CONNECTOR CN100 242 SERIES CONNECTOR TUC P11X B1 WHT JCTUB11TG002 ST JACK ASSEMBLY Ret Ne Description Panno JACK ASSEMBLY 1ESA14714 Consists of the following JACK CBA INVERTER POWER CBA SIDE JACK CBA JACK CBA Ret Ne Description JACK CBA Consists of the following CHIP CERAMIC CAP 1608 F Z 0 1uF 50V CHIP CERAMIC CAP 1608 CH J 100pF 50V CHIP CERAMIC CAP 1608 CH J 100pF 50V C7055 ELECTROLYTIC 47uF 16V H7 CE1CMASSL470 C7056 CERAMIC CAP 1608 J 100pF 50V CHD1JJ3CH101 C7061 CHIP CERAMIC CAP 1608 CH J 100 CHD1JJ3CH101 CHIP CERAMIC CAP 1608 CH J 100 50 CHIP CERAMIC CAP 1608 CH J 100 50 CHIP CERAMIC CAP 1608 CH J 100pF 50V C7091 CHIP RES 1608
27. SYLVANIA SERVICE MANUAL 42 COLOR LCD TELEVISION 420558 IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe reliable operation of all Funai Equipment The service procedures recommended by Funai and described in this service manual are effective methods of performing service operations Some of these service special tools should be used when and as recommended It is important to note that this service manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel The possibility exists that improper service methods may damage the equipment It also is important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE could not possibly know evaluate and advice the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way Consequently Funai has not undertaken any such broad evaluation Accordingly a servicer who uses a service procedure or tool which is not recommended by Funai must first use all precautions thoroughly so that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected TABLE OF CONTENTS Specialios Aa 1 1 important Safety x sss has LOSS a SAE
28. 1 10W 0 RRXAZR5Z0000 CHIP RES 1608 1 10W 0 O RRXAZR5Z0000 CHIP CERAMIC CAP 1608 F Z 0 1uF 50V CHIP CERAMIC CAP 1608 CH J 100pF 50V CHIP CERAMIC CAP 1608 CH J 100pF 50V A81H1EL Ret Ne Description CHIP CERAMIC CAP 1608 F Z 0 1uF 50V CHD1JZ30F104 CONNECTOR CN7001 FMN CONNECTOR TOP 40 40FMN BTRK JCFNG40JG020 A LF SN SWITCHING DIODE 155133 1 77 007200155133 SWITCHING DIODE 155133 1 77 200155133 IC IC SWITCHING TC4052BF ELNF QSZBAOTTS162 NOSAKTOSTOOP NOSAKTC3I99P NOSAKTC3Io9P NOSAKTC I99P NOSAKTC I99P Gri TRANSISTORKTONGSGGRATP NOS4KTC3199P NOSAKTOST99P TRANSISTOR KTC3199 GR AT P NQS4KTC3199P x UR5Z0104 RCXAIATZOTO 38520104 ROXAIATZOTO UR5Z0104 18520104 18520473 18520473 N U U eI O O N e 010 9 9 9 9 9 NIN T NI N TN O O Q O O JAE jr 20070911 Description CHIP RES 1608 1 10W 75 CHIP RES 1608 1 10W F 75 CHIP RES 1608 1 10W 75 O CHIP RES 1608 110W F 75 RRXAFR5H75R0 CHIP RES 1608 1 10W F 75 O RRXAFR5H75R0 CHIP RES 1608 1 10W F 75 RRXAFR5H75R0 CHIP RES 1608 110 00 RRXAZR5Z0000 CHIP RES 1608 1 10W 0 O RRXAZR5Z0000 CHIP RES 1608 1 10W 0 O RRXAZR5Z0000 R7084 PCB JUMPER 00 6 5 0
29. 6 5 DVI DATAO IC4201 ape 5 1 DS90C387VJD R3391 33 CE m agreed LVDS TRANSMITTER Dvo Be 67 AF 4 DVI DATA2 DVO B3 s a co lard DVI DATA3 1508 5601 2 R3393 33 Dvo gs 2 3392 33 gt lt gt TO LCD MODULE CN4201 Mk 12112169 DV0 61 Dvo ag R3395 33 ON rs E je ran DVO GO 5 DVI DATAB mn a Fr 0 61 B om Fe o 210 On i sional em em 2 m Gens DVO 67 411 83 DVI DATA15 Ro R3430 33 gt __ DVI DATA16 mas 0 2 Dvo n4 R3429 33 DVI DATA17 Dvo R2 R3432 33 DVI DATA18 3431 DVO R3 to TE DVI DATA19 00 84 q P3434 33 re DVI DATA2O Dvo ns 93433 33 1 DVI DATA24 T DVO R6 R3436 33 Gk DVI DATA22 Dvo R7 R3435 33 v3 DVI DATA23 WP MMP OU J O OJ O OO gt r gt Of wj Wj O NU DVO CLOCK DVO DE DVO H SYNC DVO V SYNC DVI CLOCK DVI DE DVI H SYNC DVI V SYNC TX4E DATAO TX4E DATAO TX4E DATA1 TX4E DATA1 1 21 22 1
30. E LECETA S EK F K F 1111 CN3601 CN3702 POWER SUPPLY CBA 1ESA20888 Fr CN3705 A CN202 CN203 2007091 1 DIGITAL MAIN CBA UNIT 1ESA14707 or 1ESA20892 MMA CBA Ree Parte MMA CBA 1ESA14710 or Consists of the following 1ESA20888 POWER SUPPLY CBA FUNCTION CBA IR SENSOR CBA JUNCTION CBA POWER SUPPLY CBA Reto Description Panne _ Consists of the following CAPACITORS CHIP CERAMIC CAP 1608 F Z 0 14 F 50V CHIP CERAMIC CAP 1608 F Z 0 1uF 50V CHIP CERAMIC CAP 1608 F Z 0 14 F 50V A81H1EL et No Description CHIP CERAMIC CAP 1608 K 1000pF 50V CHIP CERAMIC CAP 1608 B K 1uF 16V CHIP CERAMIC CAP 1608 B K 1uF 16V CHIP CERAMIC CAP 1608 B K 0 1uF 50V CHIP CERAMIC CAP 1608 B K 0 1uF 50V CHIP CERAMIC CAP 1608 B K 0 1uF 50V CHIP CERAMIC CAP 1608 B K 0 1uF 50V CHIP CERAMIC CAP 1608 B K 0 1uF 50V CHIP CERAMIC CAP 1608 B K 0 1uF 50V CHIP CERAMIC CAP 2125 B K 4 7uF 16V CHIP CERAMIC CAP 1608 B K 0 1uF 50V CHIP CERAMIC 1608 B K 1uF 16V CHIP CERAMIC CAP 1608 B K 1uF 16V CHIP CERAMIC CAP 2125 B K 4 7uF 16V CHIP CERAMIC CAP 1608 B K 0 1uF 50V C828 ELECTROLYTIC CAP 10uF 50V CE1JMASDL100 C829 CHIP CERAMIC 1608 K 1uF 16V CHD1CK30B105 C830 CHIP CERAMIC 1608 B K 1uF 16V CHD1CK30B105 CONNECTORS CONNECTOR PRINT MES C 1
31. ISOLATOR 64 C763 287 C3199 GR AT P WITCHING I RT ON 70 00 3 4 3 3K 0762 KTC3199 GR AT P 6 54 807 7 0 7 R772 PROTECTOR 8 7 TO POWER SUPPLY A81H1SCINV Function Schematic Diagram FUNCT LON CBA CL106A CL 106B SW102 INPUT SET SELECT UP _ UNLESS OTHERWISE SPECIFIED SWITCHES ARE A C 8 8 A81H1SCF IR Sensor amp Junction Schematic Diagram 4 CL106A 1068 TO POWER SUPPLY _ cN100 cL 1018 11014 BEE EI L 28101 fs cue s EP s El ava lal eor JUNCTION CBA SENSOR CBA 8 9 A81H1SCIR Digital Main 1 9 Schematic Diagram 1 NOTE The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into seven and shown as IC3301 1 7 1 3301 7 7 in this Digital Main Schematic Diagram Section VIDEO SIGNAL 22 DIGITAL 5 9 DVI DATA O 23 DVI V SYNC DVI H SYNC DVI DE DVI CLOCK R4304 4 L4203 BK 1608HS 102 T C4202 C4203 C4204 19 1 191 0 1 C4205 19 1 1 1C3301 1 7 215H4EALA11FG 2011 SIGNAL MAIN MICRO CONTROLLER DVO BO H3389 33
32. R7072 CN7001 8 mim 2 1 13 s VN 21111110 o N e z 5 e 7001 J WF7 o n R7004 t 5 0 0 P 4 Dor 7005 gt 5 T PIN 12 OF 5 zi le 7001 2 9 J7033 171122 TIT R7048 5 COMP1 R 2 5 PIN 14 5 3 L NN x en 87012 2 C7205 i a 22 2 oF p 5 or In ID C7063 e PIN 20 OF 2 m 5 7001 e S als R7044 87043 JK7002 9 EX 10m 7 B Es RSs e gt PIN 36 OF nT MI 22 7041 R7094 ES lt 7 092 091 CN7001 gi ZN sp 87020 a 2 gt 2 7046 C7040 3 Z ss e R70226 2 28 less E 5 5 GIES I um ie 0 11 t o gt E 5 0 a 5 81093 17042 4 9 gt 27 Seo 3 z 7111 p gs gt 7001 22 gt 55 S 2277 N 17108 27054 gt gt PIN 32 je si 7 Ps 14 CL7002A sassa T 46 CN7001 etr e oF 5 1 1 C7101 R7107 5 On amp EL Rr7105 R7106
33. mode 5 2 A81H1EA 5 CUTOFF Press 3 button to select COB for Blue Cutoff adjustment Press 1 button to select COR for Red Cutoff adjustment DRIVE Press 6 button to select DB for Blue Drive adjustment Press 4 button to select DR for Red Drive adjustment In each color mode press w buttons to adjust the values of color Adjust Cutoff and Drive so that the color temperature becomes 12000K x 0 272 y 0 278 0 005 A81H1EA HOW TO INITIALIZE THE LCD TELEVISION How to initialize the LCD television 1 Turn the power on 2 enter the service mode press the service button on the service remote control unit Refer to page 5 1 To cancel the service mode press POWER button on the remote control unit 3 Press INFO button on the remote control unit to initialize the LCD television 4 INITIALIZED will appear in the upper right of the screen INITIALIZED color will change to green from red when initialzing is complete 6 1 A81H1INT BLOCK DIAGRAMS System Control Block Diagram LINN VASO NIYIN 1VLIOIG 1 D HY 1asau ine gt 91 H314IHS 31 k axi gns ZOved MS INCH 20072 GXL NIVIN 518 H31JIHS 31 GH axu ans vas 2 0200 e vas oei 13534 13sau 99 lt 13534 S x O 85300 IWNDIS OIANY dVS S
34. 1 1 J256 c608 GNDA2 D517 L 3121 4 MISS DS DGS ST R YS CS Wa IS 1 1 10 S 00828 AMP13V gt e gt only with in type 8A250V f 2 FH501 same type use e wo 25 5 L 7114 Cre 2 1802 wo a to o 6529 R546 ed I 5 2 0522 6551 0800 2 8 54503 SASUNN 4 L D523 a2 AMP2STBY CN802 CN801 m 2 J107 q a ALL 3 3 5V SN P d lt 5 e 5z 54502 Em 7 2 7260 gt 7 GNDA2 am 8 19 81 0 01012 1 Power Supply CBA Bottom View CAUTION Because a hot chassis ground is present in the power Fixed voltage or Auto voltage selectable power supply circuit is used in this unit Supp Cici anisolation Transrormersmust 26 leer If Main Fuse F500 is blown check to see that all components in the power supply EH CAUTION For continued protection against risk of fire order to tng aniy To persase e Input circuit are not defective before you connect the AC plug to the AC power supply replace only with same type 8A 250V fuse Slowly wnan trouble gt looting thls type power Supply 22 250 N ATTENTION Utiliser un fusible de rechange de m me type de 250 circuit a variable isolation transformer is required Otherwise it may c
35. 2 20 JE iu 5 5 ia L e 9 5 5 tT 2 5 zi 0 ALL 3 3 5V 2 L290 2 gt 0668 J254 gt gt 5 gt 5 o aS 2 5 Te 52 64 gt 20 gt ei 2 A A 2 8 5 9 59 5 N a E gt 3181 pul Je 4 2 2167 P ON 9V 5 1 19 5 o C661 R258 m any ES 3 eh u E CN207 D GNDA2 525 2 10 J179 5 1 in z Na 1 ele Sle 15214 hil 0 1 9 ep 1 52 E N He D507 J173 5 5 5 S S 6502 Eh e D GNDA2 e em umm PI S 35213 2168 2 ALL 3 3757 1156 P ON 12V 3164 5 P ON3 3V amp J165 2 2 J162 J163 7V J161 J160 a a for3 3V C659 GNDA2 0515 R207 158 P ON 12V 2155 C514 C208 P ON 12V Z U lt gt J153 P ONSV 2 HOTGND C204 N N 1 e 0202 amp 4 8 0601 218 0201 gt 18 2 3150 Ab 58 GNDA2 E 55 R205 q 05 0201 3 0678 E R206 3142 q R204 gt D210 3 2 D662 8 or 5 c J138 7 CB16 JM J135 SP D674 J134 PROTECT2 24 P 0814 vf PROTECT2 818 1 33 IC800 1125 3130 1 1125 8 T3 HOT GND
36. 9 Power Supply CBA 10 PCB Holder 11 Stand Shaft L R 12 Chassis Bracket L R 13 LCD Module Assembly 19 Front Cabinet 2 Disassembly Method 14 Function CBA 17 Side Jack CBA 4 Inverter Power CBA 15 Junction CBA 16 IR Sensor CBA 8 Jack CBA 18 Speaker s 5 Jack Holder D 6 Shield Box 7 Digital Main CBA Unit Removal Remove Unhook Unlock Release Unplug Unclamp Desolder 17 Stand Base OT m Cover D 3 6 2 S 4 11 S 5 Cabinet 5 S 6 CN701 CN702 CN751 Inverter CN752 CN753 41 Power Rear 5 3 2 5 S 7 2 S 8 2 S 9 6 Shield Box Digital Main D2 CBA Unit 5 S 10 2 S 11 N 1 CN200 CN201 202 CN203 CN3707 CN4201 5 S 12 CL7002A CN7002 Jack Holder D 1 D1 D1 D5 D2 2 D5 D3 5 Removal Remove Unhook Unlock Release Unplug Unclamp Desolder o PCB Holder 12 Function D4 A Junction D4 IR Sensor D4 14 15 EHS 16 Speakers as Front 1 1 4 1 1 2 3 4 5 Note 1 Order of steps in procedure When reassembling follow the steps in reverse order These numbers are also used as the Identification location No of parts in figures 2 Parts to be
37. A81H1EA 1 Purity Check Mode The following adjustment normally are not attempted in the field Only when replacing the LCD Panel then adjust This mode cycles through full screen displays of red as a preparation green blue and white to check for non active pixels 2 White Balance Adjustment 1 Enter the Service mode 2 Each time pressing 7 button on the service Purpose To mix red green and blue beams correctly remote control unit the display changes as for pure white follows Symptom of Misadjustment White becomes bluish or reddish Tesi Poin Aah Point Mode input White Purity APL 70 Or APL 25 Pattern Generator x 0 272 0 005 Color analyzer y 0 278 0 005 It carries out in a darkroom Purity Check Mode White mode 7 button 7 button Red mode 7 button Green mode Perpendicularity 7 button Blue mode INPUT WHITE 70 25 Color Analyzer 1 Operate the unit for more than 20 minutes 2 Input the White Purity INPUT SIGNAL Note When entering this mode the default setting is White mode 25 25IRE 70 70IRE 3 Setthe color analyzer to the CHROMA mode and bring the optical receptor to the center on the LCD Panel surface after zero point calibration as shown above Note The optical receptor must be set perpendicularly to the LCD Panel surface 4 Enter the Service mode Press VOL 7 button on the service remote control unit and select C D
38. ALXL 22 92 2 nN 2 2VIWO ALXL 1 SOLEND 0ZNO 62 10310 ez 22 22 LH NO d 22 OVIWO ALXL 12 12 J0vivq 31XL 02 02 61 61 QNOD 61 81 81 81 EVIVG OLXL 21 41 21 91 911 310W34 9L 61 16 1 91 4OOTO OLXL 1 SLNW dWV 99019 01XL 81 el IZL 2VIVG OLXL 111 LL LL CJevivq 01XL 01 G omnv jor LWIVG OLXL 6 6 6 LWIVG OLXL 8 8 8 OWLVG OIXL 4 Z OVIVG OLXL 9 9 1 9 9 S v v nn 2 2 L L 1 202 0 2026 J POV LHOMMOVE S L cH NO d MS LHOMMMOVE L A9 6 8 2 INIAN 9 9 7 lt LO AND c AcL QO1 22 OND 61 ke AG E TV 06 A9 NOrd 81 ZL A9 NO d 21 A6 NO d 91 ZENO AND vl vL 2 AN AZL GO1 9 LOcNO LlLOALOUd 8 2 9 S AND 9 v 2 LOALOWd L LO9END LINN VASO NIVIN
39. AS Ra usaq 2 1 Standard Notes Tor SekVvICIhig 22 nn ed 3 1 Cabinet Disassembly Instructions rn 4 1 Electrical Adjustment Instructions ui i ohio _ Eee eae 5 1 How to initialize the LCD Television 6 1 BIOCK rais uuu SA De note 7 1 schematic Diagrams CBA s and Test 8 1 VV VO Ol has eas ee ese Gare 9 1 Wining at tao i eo on a ee aa 10 1 EXDIOGER VIEWS a eee 11 1 Mechanical Fans m OS d ee 12 1 Electrical Farts 8 ts Sareea a il dette G Wakana _ ahi 13 1 The LCD panel is manufactured to provide many years of useful life Occasionally a few non active pixels may appear as a tiny spec of color This is not to be considered a defect in the LCD screen SPECIFICATIONS lt NTSC gt ANT Input 75 ohm Unbal F type TV ch 4 2 Syncronizing Sens CA ch 31 CA ch 87 lt TUNER ATSC gt 1 Received Freq Range 28dBm 2 ATSC Dynamic Range min max LCD PANEL gt H
40. B22 Inverter Power CBA L8 Digital Main Digital Main i See Electrical Parts List for parts with this mark L3 A81H1CEX Packing cking Tape 512 X1 Some Ref Numbers are not in sequence LCD Unit Assembly Packing Tape Packing Tape 9 9 lt 0 Packing Tape 913 PP Band Packing Tape ar EUM 4 77 FREE 4 A81H1PEX 11 2 MECHANICAL PARTS LIST PRODUCT SAFETY NOTE Products marked with a have special characteristics important to safety Before replacing any of these components read carefully the product safety notice in this service manual Don t degrade the safety of the product through improper servicing NOTE Parts that are not assigned part numbers are not available Desenpion ma RATING LABELABIHIUH 0 2 pomem ENERGY STARLABELABTHOUN ______ B4 PCBHOLDERAMHQUH pemza ACKHOLDERS AsiHOUH STNDSHAFTR AWHOUH SCREW P TIGHT M3 10 WASHERHEAD DOUBLE SEMS SCREW M5X10 BLACK FPH35100 M5X10 20070911 Desenpion _ 56 SERIALNOLABELLS7SOUA DRY BATTERY SUNRISE R6SSE 2S A81H1CA ELECTRICAL PARTS LIST DIGITAL MAIN CBA UNIT Ret Ne Dei Pathe PRODUCT SAFETY NOTE Products marked with a
41. BK DIGITAL 7 9 ESL 4 3203 BK 1608HS60 1 1 IC3301 2 7 e 15HAEALA 1 1FG SIGNAL MAIN MICRO CONTROLLER R3215 10K DDR DQAO DQAO DDR AAO Bon DDR AA1 lt gt DOR AA3 ae ES meu 8 mel 028 DQA5 C30 9 lt gt DDR AA6 VDD4 os 08 nu om DDR DQAB 26 DDR AAB VDDG1 Cm lt 9 RAS C1 DQA9 039 DDR AA10 CAS VDDG3 eum p DQA42 EM 28 DDR AA14 13 BA1 VDDG6 M den 2 5 DDR AA13 STR RAMA iae 63 DDR DGA15 s gt DDR AA15 29 DDR AA11 VDDQ9 om lt VDDG10 Ska ic DONA SE 00 111 REA 2 UOR AAG UDGS NU AB 130 asao 4 iin 103201 M25P40 VMN6TP MEMORY 103204 HYB18TC512160BF 2 5 SDRAM C3226 03227 C3228 ere TL C2 ol id IC3203 608000 FLASH MEMORY A 3 DOR MS 0524 5 DDB pgA12 13226 008 0049 E DDR AAO lt D DDR DGA8 42 MPVDD MVREFD gt _ g 34228 C3201 MVREFS D7 0210 41 0 4 826 1K DDR DQA11 pag MEMTEST lt 008 00 15 24 5 1 TEST YCLK C3224 3223 Lesseel
42. JW5 0T R7085 CHIP RES 1608 1 10W RRXAZR5Z0000 R7086 PCB JUMPER 00 6 5 0 JW5 0T R7087 CHIP RES 1608 1 10W RRXAZR5Z0000 R7091 CHIP RES 1608 1 10W RRXAZR5Z0000 R7093 CHIP RES 1608 1 10W 0 RRXAZR5Z0000 CHIP RES 1608 1 10W 0 O RRXAZR5Z0000 CHIP CERAMIC CAP 1608 CH J 100pF 50V CHIP CERAMIC CAP 1608 CH J 100 50 CHIP CERAMIC CAP 1608 CH J 100pF 50V CHIP CERAMIC CAP 1608 CH J 100pF 50V R7222 CERAMIC CAP 1608 CH J 100 50 R7227 CERAMIC CAP 1608 CH J 100pF 50V CHD1JJ3CH101 A81H1EL Ret Ne Description PCB JUMPER 00 6 7 5 JW7 5T INVERTER POWER CBA Ret No Desonpien Panno _ Consists of the following CAPACITORS C764 CHIP CERAMIC Z 0 01uF 50V CHD1JZ30F 103 CHD1CK30B105 CHIP CERAMIC CAP 1608 B K 1uF 16V CONNECTORS CONNECTOR B2P3 VH LF SN J3VH020JG001 CONNECTOR PRINT OSU J383C02UG004 008283021200000S CONNECTOR PRINT OSU B14B PH K J3PHC14JG029 S LF SN PH CONNECTOR 10P B10B PH K S LF SN BOARD CONNECTOR O9P PB FREE 127301109K2 SWITCHING DIODE 155133 77 QDTZ001SS133 177 ca J3PHC10JG029 JCTWA09TG004 2 2 2 22 N N N Q O QDLZRABI004O QDLZRABI004O 001200082273 QD1Z000R7360 QDQZYG802C10 QDQZYO802C10 001200097500 GDTEOOMTZIS GDLZRASIODAG J a a a 57554 1 1 0
43. S 2 O3Ql S zz 2 2 0301 5 L no Wolanv 92 200 10 9200 10 62 A INI 2 03dI S lez 5 ez INI MS O3GIA S 12 eNI CDOIanv 02 QNOD lli NI 1d 1N3NOdMWOO A6 NO d 21 ZNI dd vMS Olanv 91 INANOdWO9 10110113 rL 1N3NOdWOO 8c Jolanv as 21 eG aD LL 1no adiaas 01 LNI olanv mole 1NINOdNOD INI Id LN3NOdINOO 8 LNI 1d INIGd LNANOdNOD Z LNANOdWO9 INFALN3NOdIOO 9 LNI qd IN3NO4WOOD ZNINGLNENOGNOD NFALNANOANOO 2 T 2NI d INSNOdINOO L 6 E LOLENO LOOLNO 8 ine 10100 0110 9 E LNo AVC ANI S w u oianv Avet ANI v 22 AVC ANI m olay AVEFANI EX AVC ANI L As 1v 29 0 L AN LNI 218 EL MS LHOMMOVE al ini NN LE O3GIA 01 6 22 8 n 2 2 9 E NN LLOFLOHd AVC ANI S E LOALOWd 2 MS LHOITMOWE AVZ ANI ZH NO d H31H3ANI EN Fav LHOITMOVE AYC ANI LGZNO A81H1WI 10 1 EXPLODED VIEWS Cabinet Side Jack CBA Sae O O 7 2 2 77 lt Z I UU SR SA SD SES CLN370 CLN420
44. have special characteristics important to safety Before replacing any of these components read carefully the product safety notice in this service manual Don t degrade the safety of the product through improper servicing NOTES 1 Parts that are not assigned part numbers are not available 2 Tolerance of Capacitors and Resistors are noted with the following symbols C 40 25 0 5 F 196 G 2 J 5 10 20 30 2 80 20 Compatibility between the DIGITAL MAIN UNIT and the POWER SUPPLY CBA For both DIGITAL MAIN CBA UNIT and POWER SUPPLY CBA two different types of connecters either Type A Serial Number below J37713000 or Type B Serial Number over J37713001 are being used for this model Consequently there are pairing compatibilities between Type A and Type B when repairing these units Refer to the correlation table below and make sure to confirm the serial number of the unit DIGITAL POWER Part No SERIAL TYPE MAIN CBA CN201 CN202 UNIT SUPPLY CBA CN203 NUMBER 1ESA14707 1ESA14710 JSTWA23TG001 below J37713000 1ESA20892 1ESA20888 JCTWA23TG004 over J37713001 DIGITAL MAIN CBA UNIT 1ESA14707 ack P rd 1 et CN3601 CN3702 POWER SUPPLY CBA 1ESA14710 CN3705 DIGITAL MAIN CBA UNIT 1ESA20892 mp re a LIA LT
45. position Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and if applicable to the coaxial connector If the measured resistance is less than 1 0 megohm or greater than 5 2 megohm an abnormality exists that must be corrected before the instrument is returned to the customer Repeat this test with the instrument AC switch in the off position d Leakage Current Hot Check With the instrument completely reassembled plug the AC line cord directly into a 120 V AC outlet Do not use an isolation transformer during this test Use a leakage current tester or a metering system that complies with American National Standards Institute ANSI C101 1 Leakage Current for Appliances and Underwriters Laboratories UL 1410 50 7 With the instrument AC switch first in the on position and then in the off position measure from a known earth ground metal water pipe conduit etc to all exposed metal parts of the instrument antennas handle brackets metal cabinet screw heads metallic overlays control shafts etc especially any exposed metal parts that offer an electrical return path to the chassis Any current measured must not exceed 0 5 milli ampere Reverse the instrument power cord plug in the outlet and repeat the test READING SHOULD NOT BE ABOVE 0 5 mA A LEAKAGE DEVICE CURRENT BEING TESTER TESTED TEST ALL E
46. 0 3811 4 3812 p 10 0 1 10 1 A81H1SCD4 Digital Main 5 9 Schematic Diagram de POWER SPY CBA_CN203 CN3705 GND GND GND GND 21 GND GND GND GND 5 5 2 Sl 51515158 5 5 2 5 gt NU NU PROTECT6 2 2 2 Z Z Z ere 3 7 DIGITAL 6 9 VIDEO IN1 VIDEO IN2 S VIDEO Y IN2 S VIDEO Y IN1 S VIDEO C IN1 CONTINUE DIGITAL 3 9 SPDIF OUT sasa V AUDIO R OUT J 1 01 DIGITAL 8 9 PROTECT6 N TO JACK PBA CN7001 CN3707 GND VIDEO IN2 4 ol Wim mM ro ro ro ro ro w o e S VIDEO C IND VIDEO SW IND S VIDEO Y IN2 GND GND AUDIO L OUT GND AUDIO R OUT GND GND S VIDEO C IN1 S VIDEO Y INA VIDEO SW INA VIDEO INA k Zin Gs P ON 9V P ONt9 AUDIO SW4 AUDIO SW SEL AUDIO L SEL AUDIO R GND SPDIF OUT GND 1 1 13 1 1 13 1 GND GND COMPONENT Pr IND COMPONENT Y IND COMPONENT Pb IN2 s R3711 0 83710 4 R3709 0 R3504 0 93707 QJ Co 8 418 83706 R3705 R3704 3 3 w
47. 01 0 UC2853ADTA KTB985 C AT P 7 0504 13 7 25 850 817 SW 15V FEEDBACK r POWER 3 3 PROTECT6 deca ey LTV817MBF POWER 2 3 G MEN m KTC3199 16V SWITCHING 2 Q506 189 0 8548 0516 MTZJT 7727B D672 4 008 lt CONTINUE 0509 8 POWER 574 KTC3199 GR AT P 1 gt LCD 12V 0675 Wee EUER DET 1 004 32V 13 PROTECT2 P ON H4 BC601 BC602 WIRE WIRE I RE Q600 2SK3798 SWITCHING o 9 0665 ERCB1 004 C600 s 28381 004 i SC2120 Y SH ITCHING CONTROL ERC81 004 27 0602 2602120 0614 1 15 MTZJT 7736B LTV817MBF FEEDBACK 8673 3 39K 0 1 0611 8600 A603 C603 8605 0 IC650 R650 35 3 6 A MTZJT 7727B 1800 150 15 2 2K 431 2 21 Ch 35 7 SHUNT of 9550 i REG KTC3199 GR AT P SOK SWITCHING 8 3 A81H1SCP1 Power Supply 2 3 Schematic Diagram VOLTAGE CHART UU CN200 CONTINUE BOWER 1 3 Voltage 0 _ 0o I 33 I IC290 PQ035ZN1HZPH 3 REG I 5 x _ 2 I 0 5 I s
48. 02 CN203 CN7001 Power Supply CBA 100 Junction CBA 1018 To Speaker IR Sensor CBA Function CBA CL106B 0808 Fig D5 4 6 A81H1DC ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note CBA is abbreviation for Circuit Board Assembly Note Electrical adjustments are required after replacing circuit Components and certain mechanical parts It is important to perform these adjustments only after all repairs and replacements have been completed Also do not attempt these adjustments unless the proper equipment is available Test Equipment Required 1 2 3 4 How to make the Service remote DC Voltmeter NTSC Pattern Generator Color Bar W White Window Red Color Dot Pattern Gray Scale Monoscope Multi Burst Remote control unit Color Analyzer control unit Cut A portion of the attached remote control unit as shown in Fig 1 service button finc JUDO 220000 MO lt gt e Q o How to set up the service mode Service mode 1 2 3 Use the service remote control unit Turn the power on Press the service button on the service remote control unit The following screen appears differs depending on the models Ver kkkkkkkkkkkkkkkkkkkkkkk Boot Push 0 key System Push 0 key H kkkkkkkkkkkkkkkkkkkkkkk Pic Ver kkkkkkkkkkkkkkkkkkkkkkk Picture Push 0 key Submicon Ver
49. 3703 lc3748 PC G MEMORY 4 7K 12 1 PC B TA PC R RET PC G RET PC B RET PC H SYNC PC V SYNC SDA 2 2 4 5 CONNECTION A81H1SCD6 Digital Main 7 9 Schematic Diagram HDMI CONNECTOR 2 E T DIGITAL 9 9 1 NOTE The order of pins shown in this diagram is different from that of actual IC3301 IC3301 is divided into seven and shown as 1 3301 1 7 IC3301 7 7 in this Digital Main Schematic Diagram Section VIDEO SIGNAL AUDIO SIGNAL 4004 cs 2 5V DIGITAL 2 9 2V 5V I DIGITAL oe DIGITAL 6 9 HOT PLUG 1 1 1 3301 5 7 215H4EALA1 1FG SIGNAL MAIN MICRO CONTROLLER U Ce G GOGG G N N N N N N N N N N N N e qm zz N N N N N PROCESS TO DIGITAL MAIN 1 U IC3301 TAL BR2808HS601 T F3 LTVDDR1 c3374 LTvooR2 i LTVDDR3 7517 LTVDDR4 3372 Lrvssnt I ur LTVSSR2 80 LTVSSA3 LTVSSR4 HDMI AVDD33 1 HDMI AVDD33 2 HDMI AVDD1 HDMI AVDD2 HDMI AVDD3 HDMI AVDD4 HDMI AVDD5 HDMI AVDD6 1 HDMI AVDD6 2 HDMI AVDD7 HDMI AVSS 4 HDMI AVSS2 HDMI AVSS3 HDMI AVSSA 555 556 1 556 2 HDMI AVSS7 H
50. 403524 103525 Peep quests 03533 03534 C3536 0 047 T 1000P T 0 047 T ie EN 83537 Je A35212 R3522 83523 93524 4 3535 33 fs 83360533 83534 35352 0 047 33 1K Lo R3536 233 o ED 0 R3503 0 R3513 0 R3512 0 R3511 0 VIDEO SIGNAL AUDIO SIGNAL DN Ce DIGITAL 1 9 DVI DATA 0 23 DVI V SYNC DVI H SYNC R3570 33 DVI DE 83571 33 DVI CLOCK CONTENE DIGITAL 9 9 5V R3559 33 DVI DATAB DVI D I D TS R3553 33 ATA14 R3552 33 DVI DATA15 4411444 VDDP Nu 62 Nu 5D 60 3551 33 DVI DATAO Gq menos w een rome e emos 22 83543 33 DVI DATA7 u SrortaL 9 9 Nu 49 ee INT 20 1P3503 FORM MANAGEMENT DIGITAL 4 9 3 TE DIGITAL 2 9 T2C SDA A I2C SCL A RESET VADC DIGITAL 6 9 pw 1 83532 83509 33 0 3579 4 03542 283578 03541 83518 843520 283515 CONTINUE 2 2K TP 2 2K 4 0 0 0 DIGITAL AUDIO SW4 AUDIO SW5 gt Gee DIGITAL 4 9 SEL AUDIO L SEL AUDIOI A 5 8 14 A81H1SCD5 Digital Main 6 9 Schematic Diagram 1 NOTE The order of pins shown in this diagram is different from that of act
51. 5 S Refer to page 13 1 127301115 2 Refer to page 13 1 CN200 CN201 CONNECTOR 23P CN202 CONNECTOR 23P 2007091 1 13 2 fet No Desn CN501 CONNECTOR PRINT OSU J383C02UG004 008283021200000S CONNECTOR BASE 2P EH 28 A LF SN CONNECTOR BASE 2 2 A LF SN CN801 J3EHC02JG010 CN802 J3EHC02JG010 D110 ZENER DIODE MTZJT 7710B D200 SWITCHING DIODE 1SS133 T 77 D201 ZENER DIODE MTZJT 775 1B D202 SWITCHING DIODE 1SS133 T 77 007200199133 D210 SWITCHING DIODE 155133 77 QDTZ001SS133 06720050420 QDTBOOMTZJ10 QDTZ001SS133 QDTBOMTZJ5R1 A81H1EL Description Ret No Desorption PartNo AQ TRANSISTOR 2SA950YCTE2 E T TRANSISTOR 2SC2120 Y TE2 F T QQSY2SC2120F TRANSISTOR KTC3199 GR AT P NQS4KTC3199P TRANSISTOR KTC3199 GR AT P NQS4KTC3199P RESISTORS 2x METAL ONDE FILM RES 2W CARBON RES TAW JIKO CARBON RES 1 4W J 330 20331 CARBON RES 1 4W J 27k Q RCX4JATZ0272 CHIP RES 1 10W F 3 3k Q RRXAFR5H3301 D676 JW20 0T RRXAJR5Z0223 CHIP ZENER DIODE CRZA7TEBSL 0 GD1Z00CRZ47Q CHIPRES RRXAIRSZDIGS ICs CARBONRES MAWJ33kn __________ 21682 NSZBA0SSS046 CHP RES VIOWF amp zKO 7 RRXAFRSH620 REGULATOR OGY POOSSZNTHZPH aszmorsHors RESMETAUZEDFLMTIHWFTON ___ ADCTOOIHHO0G ICPFCUCHNOADIRSOCS I NSZBAOTTYAS7 HP RES
52. 9 a 16 9 Q762 gt 5 6714 8 27082 9761 37093 PEON les s 8714 5 R705 lt gt x wo a R706 21 J7092 2 eT 2762 0757 _4 R708 2717 C761 i R762 J7091 GND 2 EL 8756 R712 1 CN702 C708 RS 2 E N 1861 R760 p s p 4 3 cum 1702 R767 ALL C761 8 23 GND 81 0 01022 4 Inverter Power CBA Bottom View Because a hot chassis ground is present in the power supply circuit an isolation transformer must be used Also in order to have the ability to increase the input slowly when troubleshooting this type power supply circuit a variable isolation transformer is required NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal 2 mn 55 PC CN752 e lt lt LI M C3 o 22 Y 78 e z 2 Bd rg rr o GND E e e ex am HOT IE 6155 L 5 1701 3 o nS 9804 3 N 726 2910 QN9 10H SLOLF C784 E 280 A 8 15 iS c Ie 14 5 gt 2 3 F a 13 6 m GND J7089
53. Bottom View BAS OTOZ STAND BY 22 CL106A 81 0 01022 3 81 0 01012 3 WAVEFORMS WF7 Waveforms to be observed at Waveform check points Shown in Schematic Diagram Input NTSC Color Bar Signal with 1kHz Audio Signal Pin 20 of CN7001 CVBS1 DJ Pin 7 of CN7001 COMP1 Pb Pin 36 of CN7001 CVBS2 Pin 1 of CN7001 COMP2 Pb VIDEO Pb 0 2V E Pin 22 of CN7001 S1 Y Pin 8 of CN7001 COMP1 Pr Pin 32 of CN7001 S2 Y Pin 3 of CN7001 COMP2 Pr S VIDEO Y VIDEO Pr Pin 23 of CN7001 S1 C Pin 14 7001 JACK SEL L Pin 34 of CN7001 S2 C Pin 12 of CN7001 JACK SEL R S VIDEO C 0 2V Pin 6 of CN7001 1 Pin 2 of CN7001 COMP2 Y VIDEO Y 9 1 A81H1WF WIRING DIAGRAM 3 TNGOW aol LINN YANAL LOOENL 910310 22 AN 22 AN 1 02 61 6L 81 81 ACL OO1 41 21 Or 91 91 2 SL 91 ACL QO1 8 rL rL 28 el 81 96 AN LL QNO LL lre 0L OL 66 6 6 INOO A 8 nN 8 EVIWO ALXL LE 2 4 EVIVG ALXL 06 9 nN 9 62 S 8 OOTO ALXL 82 v MOOTO
54. CRO CONTROLLER BACKLIGHT SW BACKLIGHT ADJ 0 163808 J w NUM4558M TE1 7778 2 DIGITAL 9 9 R3314 100 C3817 R3811 68P 43K A1VDD 4275 R4277 0 0 A1VSSN TO DIGITAL A1VDDG MAIN 6 9 A1VSSQ 1 3301 4 7 ADD1DI ASS 1DI TO DIGITAL MAIN 7 9 1C3301 5 7 os C3325 C3326 AUDIO DECODER R3867 83852 R3851 0 1K 0 terri DIGITAL 4 9 Tm Qt ur I2S ADATA DIGITAL A2 12S BCLK SIGNAL T PROCESS pw I2S LRCLK R3477 0 BUFFER 83868 270 85 7 94329 0 04 d CELLS LLL esses p ss DAC R4324 0 gt NU NU q 020 VDDR AUDA VSSR AUDA VDDR AUDB IC3805 NJM4558M TE1 7278 IIS DIGITAL 5 9 SPDIF OUT AUDIO R OUT AUDIO L OUT 0 I L3802 1 1608 5102 DIGITAL 9 9 03804 MUTE ON I ILU DIGITAL 4 9 3 2 5V R4299 84298 C4276 2 2K 0 4 7 5 C3328 102 4071 CONTINUE DIGITAL 8 9 BD3490FV e a RR UU Du A4335 4 7 gh 10K 1 C3850 0 1 F DIGITAL B 9 AL 3 I 1 51858 C3860 0 1 C3861 0 1 C3862 4700P C3859 0 1 R3872 4 C3865 4700P C3863 0 1 83873 7K a SSS aa
55. DMI AVDDB 9 1 7 HOMI AVSSB TO DIGITAL MAIN 3 9 1 3301 3 7 1045 gt DDCO SDA DDCO SCL C4008 0 1 C3 i lt bod e _____ LL bas eI on 79 515 IC4002 SIL8185 HOMI SW 21 HDMI DECODER HDMI 175 t co C4021 Jot C4016 C4014 19 1 79 1 R40 2 C4020 0 1 C4012 I93 HDMI SW 05 2K C4018 0 1 C4010 0 1 DIGITAL MAIN CBA UNIT 8 16 HOT PLUG R4003 1 4003 10K BK1608HS102 T ZN B tH Zl C4022 m 0078 4133 B O 8 5 89 JK40 N Hj H S SN 55 52 B B Ww ale Q m 11 11 DIGITAL 2 9 lt CONE DIGITAL 9 9 5V Qu 2 gt __ 1 02 DATA2 TMOS DATA2 SHIELD 21 DATA1 TMOS DATA1 SHIELD 6 DATA1 DATAO TMDS DATAO SHIELD 9 m CLOCK TMDS CLOCK SHIELD CLOCK 14 HDMI CLOCK GND 5V 19 HOT PLUG DETECT A81H1SCD7 Digital Main 8 9 Schematic Diagram 1 NOTE The order of pins show
56. E REPLACE ONLY WITH SAME FUSE ATTENTION UTILISER UN FUSIBLE DE RECHANGE DE MEME 2 CAUTION Fixed Voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F500 is blown first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail 3 Note 1 Do not use the part number shown the drawings for ordering The correct part number is shown in the parts list and may be slightly different or amended since the drawings were prepared 2 To maintain original function and reliability of repaired units use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Voltage indications on the schematics are as shown below Plug the TV power cord into a standard AC outlet Unit Volt 5 0 x 5 0 Power on mode Voltage Indicates that the voltage is not consistent here 5 How to read converged lines 1 D3 L Distinction Area Line Number 1 to 3 digits Examples 1 1 D3 means that line number 1 goes to the line number 1 of the area D3 2 1 1 means that line number 1 goes to the line number 1 of the area B1 6 Test Point Information D Indicates a test point with a jumper wire across a hole in the PCB
57. EMATIC DIAGRAMS CBA S AND TEST POINTS Standard Notes WARNING Many electrical and mechanical parts in this chassis have special characteristics These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage wattage etc Replacement parts that have these special safety characteristics are identified in this manual and its supplements electrical components having such features are identified by the mark in the schematic diagram and the parts list Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock fire or other hazards Notes 1 Do not use the part number shown on these drawings for ordering The correct part number is shown in the parts list and may be slightly different or amended since these drawings were prepared 2 All resistance values are indicated in ohms K 10 M 106 3 Resistor wattages are 1 4W or 1 6W unless otherwise specified 4 All capacitance values are indicated in uF P 109 uF 5 All voltages are DC voltages unless otherwise specified A81H1_SC LIST OF CAUTION NOTES AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES 1 CAUTION CAUTION FOR CONTINUED PROTECTION AGAINST RISK OF FIR
58. IN2 JK7006 COMPONENT 2 AUDIO L IND aes 4 7725V Ny zb AUDIO R IND 7091 C7084 0 AUDIO L OUT I AUDIO R QUT C7055 R7072 47007 47716 5 DIGITAL C7056 D7001 D7002 AUDIO OUT 155133 155133 COAXIAL I gt UJ U T 4 8 6 A81H1SCJ Inverter Power Schematic Diagram 3 TO POWER een CBA_CN500 I CN701 TO POWER Pm CBA CN501 CN702 NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal 751 LCD MODULE mes wien wen se eo s s s so ya na PIS faf encro I 21203 4 150 400V 751 11 4700 35V 0701 2SK356 1 SWITCHING RF CONTROL min LOGIC CN752 1 LCD MODULE I Lp EL 00 lee sje of Q702 2SK356 1 SWITCHING 0752 YGBOZC1OR C712 320P 500V Be Boss Dee C752 4700 35V Q703 KTA1267 GR AT P 22 BL ON 8719 22K IC702 LTV817MBF FEEDBACK 0704 KTC3199 GR AT P 2 BL ON CN753 I CN206 _ mo s eo I 431 Gant 12703 REGULATOR LTV817MBF
59. IO SIGNAL oa ee VOLTAGE CHART CN7001 0 CL7002B CL7002A F 07103 KTC3199 GR AT P 1 poem 2 39 _ 7502 B 7001 UNIT CN3707 E COMPONENT Pb IN2 3 0 7104 JK7502 VIDEO INe TC3199 GR AT P 112 vIDEO INe qa a COMPONENT Pr IN2 IH 5 0 anime nf C LE M 6 40 5 _ AUDIO R IND 2 AUDIO R IN2 0927 He COMPONENT Y IN1 21 12 woe mE 9 PLA EIE fe HEADPHONE DET HINUI fo 12 SEL AUDIO A m SEL AUDIO L EB AUDIO SW5 SIDE JACK CBA E 17 P 0N 9V 202 I we P ON 9V REL NN i 20 VIDEO IN1 IC NE STIER 7001 21 S VIDEO SW IN4 EL N F INPUT SELECT 98 S VIDEO C IN VIDEO IN AUDIO L IN1 22 AUDIO R OUT TERTA gu AUDIO L OUT S VIDEO Y IN2 COMPONENT p S VIDEO SW IN2 S VIDEO C IN2 COMPONENT E Pb IN1 7001 E E COMPONENT L2 100 10V a VIDEO IND 210 ip 75 R7053 C7046 is 24K LEY 07002 KTC3199 GA AT P 7 AUDIO L IN4 INVERTER Bern KTC3199 GR AT P COMPONENT INVERTER AUDIO R IN1 9 97106 I eo a BUFFER COMPONENT i Pb IN2 COMPONENT i Pr
60. LIN 1006201 205551 1 0 SSO vas 92 22 25 ZHIAL vS 105 LOEEX WVHOVIA 018 608691 31ni olanv 31nW Oldnv gt c OIanv OL 13834 i O10 SOOTY S ux O 105 ems olanv 601 vMS OIGV zMmS olanv 801 KOST O3GIA 108691 N ZMS Oldnv LMS Olanv ZEN 7 i dM dM 2091 AE 8 13534 61 13538 gt Mee 7 MS LHSIMOVA 17 0183 20223 H3TIOHLNOO NIYIN 108891 050 2 LNO X ee ee ZHAI ar NI X LOLEX SEHE PIENO H3MOd 4YH3L43ANI AlddNS 6 MS1H9IDIOVG 1 8 Er MS LHOITNOVE AdO IS USMOG OL DET p EVITER H NO d Z rI H NO d ZH NO d S NO 90ZNO 002NO LOLENO Ns ERR MO a 2222 67 24 Vad HOSN3S 25 HOSN3 uno LOLSH __ 49018 4 i AlddNS H3MOd OL 95 o10310ud AW SLAW diNV Lord i 1 TAN i 31 nIW dNWV vL 8 91 816 81 02 Ag1S dWv 2010 91
61. SLOWS 91 211 SLOWS aon 9 9 aronga z por aloWau VAD 9 __ el 1331121 9 HOLIMS 2 1 6 6 INFA3M 6 9 9 NFAS 890110 90 70 VLON glorio 00 0 002NO LOZENO ENS 101691 a L UU NEST is san a en u nl sn A81H1BLS Video Input Select Block Diagram es ns ns wawam wwaa w w ww rr MOO 10 1Ad ONAS H IAG ONAS A IAG 3 oss Z 0 VLVG IAG INVHOVIG LNI A OACIA S LNI O OACIA S LNI O3GIA SNIA OFAIA S 0401 5 SNI OFAIA TVNDIS BP LINN 0 NIYIN TVLIDIG AHOWaN 107621 D ONAS H Od 2 e 1 LZ Lozewr Yovr MEM 1 1N3NOdWOO 90170 89 45010 1Ad 1 ONAS H 1AG ONAS H Od 1NSNOdWOO IONAS A IAG ONAS Od FD 1N3NOdNWOO 58 9 ENIA 1 05 5 1100 poc i
62. T GND m 1159 JP507 3 hd 1 IIIa e 020 o s i a e 5 H R217 2 m 512 5 2 Re 0601 E gt 5 5 Eri e t 7 dien 2 S 5 R257 7150 e J149 J270 GNDA2 GNDA2 2 Em ee TE JP506 4 a JL E 5 a 7 ofa C602 gt gt C601 e 5 al e JP508 C 2 JP509 1220 AI 871 209 971 1081 5 7089 N D200 i e 4144 e R206 ML 8 2 8214 for32V Xr e 642 1820 071 e 5128 oja 5B 8824 20 o N N a eo o 509 ae 2 1139 9162 R216 6603 0519 2B t B SUE E 3 2 pa C81 C821 J138 m Ji36 R282 R610 5 GNDA2 B B e o Anh J134 4 gt E i Hors e PROTECT2 gt ao 8281 e gt 17 o e e 5 L502 1 e e J125 WE 1 R609 70615 5 C526 5 o o J127 i 5 2o J R613 a SE IE A 28 ms d 0 Se JP801 5 o9 j E 603 e 3124 1C280 a of R614 R249 1123 0553 a 1 C610 e 5 e
63. V ONAS A IAQ rav ONAS A IAqQ LDV 14 Lav eav fe Ec 0 v1VQ IAG 65300 TWNDIS 1VLIOIQ LO 2I A81H1BLLCD ksr n R MM M M i V82 AlddNS H3MOd q 102 INVHOVIG MOO 18 SAldANS H3MOd ANNILNOO w DO nr T HO1V1OSI 2023 20201 q102 1041 1020 00921 Wy 934 ASI 2090 H3 1H3ANI 6050 i E 2 431411038 ozsa 2158 ASL 1 l 2022 1N3HHHhO H3AO _ 805 9090 j _ s _ 700 L GND LOH 2 E e as H vl 20210 1 LOSNO HOLODVS H3MOd wy 04d 00921 029 1NVNOS3H 39VLIOA AOSZ VB HOIH 5050 v zo
64. XPOSED METAL SURFACES ALSO TEST WITH PLUG REVERSED USING AC ADAPTER PLUG _ _ EARTH AS REQUIRED GROUND ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE INSTRUMENT TO THE CUSTOMER OR BEFORE CONNECTING THE ANTENNA OR ACCESSORIES Read and comply with all caution and safety related notes on or inside the receiver cabinet on the receiver chassis or on the Liquid Crystal Panel LTVN_ISP 3 Design Alteration Warning Do not alter or add to the mechanical or electrical design of this TV receiver Design alterations and additions including but not limited to circuit modifications and the addition of items such as auxiliary audio and or video output connections might alter the safety characteristics of this receiver and create a hazard to the user Any design alterations or additions will void the manufacturer s warranty and may make you the servicer responsible for personal injury or property damage resulting therefrom Hot Chassis Warning a Some TV receiver chassis are electrically connected directly to one conductor of the AC power cord and maybe safety serviced without an isolation transformer only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC power source To confirm that the AC power plug is inserted correctly with an AC voltmeter measure between the chassis and a known
65. ause some components in the power supply circuit to fail g yp 1 m m The voltage for parts in hot circuit is measured using P 0 VE _ hot GND as a common terminal 5 E 2 2 a m 7 8 12 BE Ee 4 h J242 HOTEGND 9 pe TES LIV E e wo 50 6198 QN9 LOH 172 6ecr I ls C506 e 8 2500 HOT GND e 9235 8 4 500 HOT GND J 234 J258 mU a HOT GND a an 6509 345V J229 o 2 L a z 4 1 345 1228 a e e 345V_J226 R530 gt R525 J225 R507 Eger E BA81H0F01012 1 22 A JH 5 5 ee GNDA2 e 4 N R506 ug Ri 293 GNDA2 z 4 1 CN203 CN202 23 R263 R261 MA 2 a 9 503 6 E m 7 o a gt WS T 2 enoa2 d 5 CN201 22 C501 e 4 9 2 PA 9 4219 R235 C296 a 1 214 R260 z a SS 8 209 EM 2 4 SS 2 gt 3 3 e 2515 x E L503 2 3206 asm 5 50 96 16 9 gt 5 5 c 1 E gt s9 14 e 5 JP202 JP201 R663 and a
66. ce only Be sure to confirm the precise values 2 4 LTVN_ISP STANDARD NOTES FOR SERVICING Circuit Board Indications 1 The output pin of the 3 pin Regulator ICs is indicated as shown Top View Bottom View Input For other ICs pin 1 and every fifth pin are indicated as shown ein 1 OS S 5 10 The 1st pin of every male connector is indicated as shown pin KAA RR IN Pb Lead Free Solder Pb free mark will be found on PCBs which use Pb free solder Refer to figure For PCBs with Pb free mark be sure to use Pb free solder For PCBs without Pb free mark use standard solder 24 Pb free mark How to Remove Install Flat Pack IC 1 Removal With Hot Air Flat Pack IC Desoldering Machine 1 Prepare the hot air flat pack IC desoldering machine then apply hot air to the Flat Pack IC about 5 to 6 seconds Fig S 1 1 2 Remove the flat pack IC with tweezers while applying the hot air 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 Release the flat pack IC from the CBA using tweezers Fig S 1 6 CAUTION 1 The Flat Pack IC shape may differ by models Use an appropriate hot air flat pack IC desoldering machine whose shape matches that of the Flat Pack IC
67. ctive action to remove any potential safety hazard 2 2 Product Safety Notice Some electrical and mechanical parts have special safety related characteristics which are often not evident from visual inspection nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage wattage etc Parts that have special safety characteristics are identified by a on schematics and in parts lists Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock fire and or other hazards The product s safety is under review continuously and new instructions are issued whenever appropriate Prior to shipment from the factory our products are strictly inspected to confirm they comply with the recognized product safety and electrical codes of the countries in which they are to be sold However in order to maintain such compliance it is equally important to implement the following precautions when a set is being serviced LTVN_ISP Precautions during Servicing A Parts identified by the symbol are critical for safety Replace only with part number specified In addition to safety other parts and assemblies are specified for conformance with regulations applying to spurious radiation These must also be replaced only with specified replacements Examples RF converters RF cables noise blocking capacitor
68. dNI 108591 gt 20020 u344ng gt 90020 13 Hari vHlO3dS vHlO3dS vHlO3dS N 62 4 13 SWH HO H 136440 OOV AD ISONVO 5 lt 1 138440 j z olanv 14S mib ZOZEND 5 TAONVO 13S4 4O Mover JAIS ZNI a 1 1 0 RE 2 200 0 4 IN3NOdWOO ZNI NMOIaNV IN3NOdWOO LNI H OIa V ez LN3NOdINOO 2 94 02 LNI DOIONY LIND D Z IN3NOdWOO 4 9 4 2 2 j en Fi 20029 03135 INdNI 100 21 _ _ lt Yal 4 dvs Hard gt m daowaa 42 2 16 agais as KOAH als 100539 HINNL LOOENL 66 IWNDIS Olanv dVS S1W L0082l A81H1BLA1 Audio 2 Block Diagram u3 v4ids c06dS 1 5 OHLNOO 3LNW NMOQGLNHS vao 31nw oianv 1 1no oianv by sogeo 200
69. earth ground If a voltage reading in excess of 1 0 V is obtained remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground b Some TV receiver chassis normally have 85V AC RMS between chassis and earth ground regardless of the AC plug polarity This chassis can be safety serviced only with an isolation transformer inserted in the power line between the receiver and the AC power source for both personnel and test equipment protection c Some TV receiver chassis have a secondary ground system in addition to the main chassis ground This secondary ground system is not isolated from the AC power line The two ground systems are electrically separated by insulation material that must not be defeated or altered Observe original lead dress Take extra care to assure correct lead dress in the following areas a near sharp edges b near thermally hot parts be sure that leads and components do not touch thermally hot parts c the AC supply d high voltage and e antenna wiring Always inspect in all areas for pinched out of place or frayed wiring Check AC power cord for damage Components parts and or wiring that appear to have overheated or are otherwise damaged should be replaced with components parts or wiring that meet original specifications Additionally determine the cause of overheating and or damage and if necessary take corre
70. ich is applied to all pins of the flat pack IC you can remove it easily Fig S 1 3 2 Affixthe wire to a workbench or solid mounting point as shown in Fig S 1 5 3 While heating the pins using a fine tip soldering iron or hot air blower pull up the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig S 1 5 4 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 5 Release the flat pack IC from the CBA using tweezers Fig S 1 6 Note When using a soldering iron care must be taken to ensure that the flat pack IC is not being held by glue When the flat pack IC is removed from the CBA handle it gently because it may be damaged if force is applied Hot Air Blower Iron Wire Soldering Iron To Solid Mounting Point Fig S 1 5 Fine Tip 32 Soldering Iron lt lt N QS t 22 jjj SU SS que S me Z SS Flat Pack IC Tweezers N Installation 1 Using desoldering braid remove the solder from the foil of each pin of the flat pack IC on the CBA so you can install a replacement flat pack IC more easily 2 The mark on the flat pack IC indicates pin 1 See Fig S 1 7 Be sure this mark matches the 1 on the PCB when positioning for instal
71. ii a S SSS SSS s a i s SSS a Z a r SSS SSS r h 8 12 A81H1SCD3 Digital Main 4 9 Schematic Diagram 4 ee DIGITAL 8 9 1 I2C SCL B T2C SDA B DIGITAL 5 9 SEL AUDIO R 23 EN S DIGITAL 6 9 PC AUDIO R DIGITAL 8 9 AUDIO SW1 AUDIO SW2 AUDIO SW3 DIGITAL MAIN CBA UNIT IC3801 CD4051BNSR INPUT SELECT R3840 100K 20 93925 O R3841 R3845 6 100K 100K a IC3001 g AN5832SA E1V 8 MTS SAP AUDIO sten PROCESS SPECTRAL DE EMPH EXPAND WIDE BAND WIDE L R C3872 4 7 RMS DET FILTER SWITCH Gs C3876 4 7 SPECTRAL am AMS DET 1 FILTER IC3802 CD4051BNSR INPUT SELECT BUFFER C3871 4 7 INVERTER Q3809 25 4081 INVERTER 03801 C3802 4 7 8 13 AUDIO SIGNAL C3049 1 PADa DIGITAL 6 9 SIF OUT 03034 T 3 3 50 JK4006 HDMI AUDIOLL IN AUDIO R IN CONTINUE DIGITAL 5 9 3 9 CONTINUE DIGITAL 3 9 Ld eum SERIAL I F MODE FORMAT CONTROL x 1 64 1 128 103803 CLOCK amp TIMING PCM1803DBR DECIMATION 1 FILTER HPF CONTROL DELTA SIGMA MODULATOR L3807 BK 1608HS102 T nz MDIGITAL 3 9 3 3V 0 9 D n d 8HS102 T C3804 C3809 381
72. lation Then presolder the four corners of the flat pack IC See Fig S 1 8 3 Solder all pins of the flat pack IC Be sure that none of the pins have solder bridges Pin 1 of the Flat Pack IC is indicated by a mark Presolder Flat Pack IC TVN SN Instructions for Handling Semi conductors Electrostatic breakdown of the semi conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work 1 Ground for Human Body Be sure to wear a grounding band 1 MQ that is properly grounded to remove any static electricity that may be charged on the body 2 Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding 1 MQ on the workbench or other surface where the semi conductors are to be placed Because the static electricity charge on clothing will not escape through the body grounding band be careful to avoid contacting semi conductors with your clothing lt Incorrect gt lt Correct gt Grounding Band Conductive Sheet or Copper Plate TVN_SN CABINET DISASSEMBLY INSTRUCTIONS 1 Disassembly Flowchart This flowchart indicates the disassembly steps for the cabinet parts and the CBA in order to gain access to item s to be serviced When reassembling follow the steps in reverse order Bend route and dress the cables as they were 1 Stand Base 2 Stand Cover 3 Rear Cabinet
73. n in this diagram is different from that of actual IC3301 IC3301 is divided into seven and shown as 301 1 7 IC3301 7 7 in this Digital Main Schematic Diagram Section AUDIO SIGN DIGITAL 9 9 ALt3 P ONTSV 6V TO POWER SUPPLY 1 CN200 CN3701 za DIGITAL MAIN CBA UNIT 93120 12K 9 94307 1 0 31 1C3301 6 7 KEY IN 215H4EALA11FG DIGITAL SIGNAL 2 7 GND 05 SS j pases _______ _ ___ 10 gt 100 a 100 meer oo 52 101090 AUDIO SWe AUDIO SW3 NU NU NU 6V 2 AG1 TWAIN MICHO CONTROLLER 84270 83410 0 22 5 GND BACKLIGHT SW 1 P ON He BACKLIGHT ADJ lt gt Z Z WU 9 9 1 gt gt 21 AV8 w E2 gt CONTINUE NU DIGITAL 3 9 7 03105 4 03116 u 2 TOT TOIT qa nu 835 83454 A3455 NU 2 2K CONTINUE 12C SCL A 814 DIGITAL 6 9 1 gt IF AGC MON AFT VOL PWM 20 AQ2 po o I2C SDA B 021115 DIGITAL 2 9 1 POWEWR KEY MONITOR 8 2 PROTECTS HOST CHECK 9 5 1 2 IREDCONTV EN 2 MAIN TXD al MAIN RXD 115 eu POWER SUPPLY CBA_CN202 D PWR SEQ1 gt a c elc
74. o in order to have the ability to increase the input slowly when troubleshooting this type power supply circuit a variable isolation transformer is required NOTE lu The voltage f ts in hot circuit i BE BENE a e voltage parts In not circuit 1 Measured using CN500 1 R539 e Rs fl DN 11281 1 208158 2 hot GND as common terminal n 3 OVP OVER J240 VOLTAGE gt 500 PROTECT GNDA2 GNDA2 845V s 27245 to BC508 5 5 R554 a 3 GNDA2 265 olg 4 2 a 22098510 3 112 BC509 299 GND N 4 pM x N a ICH S gt 2 4 a 42 2 3233 a J230 9229 345V J228 345V ea D612 3226 345V c300 s R507 224 E Got R506 GNDA2 EN J21 GNDA2 J268 SSS BC503 23 Siga 23 CN202 CN203 1 eg 112 1 D670 C301 E 7 GNDA2 22 og o 1 CN201 in 22 1218 2 4190 2 RE 2 o 9 214 Q R235 222 9 CUT 5 Ly 4 ER 24 lt gt L503 2 Onl e o e ol SS ee gt lt u I ojo IR o io J206 c261 ES a ol gt gt 202 o 5 JP201 5 amp
75. orizontal pixels 1920 1 Native Pixel Resolusion pixels 2 2 Brightness w filter OO 2 Brightness w filter filter uer to 89 VIDEO Horizontal 96 5 5 bod 2 Color Temperature 3 Resolution composite video pu 1 1 A81H1SP lt AUDIO gt All items are measured across 8 Q load at speaker output terminal with L P F Video1 Input 1 Audio Output Power 10 THD Lch Rch 10 0 10 0 9 0 9 0 2 2 Audio Distortion Distortion 500mW 500mW Lch Rch 0 0505 5 2 2020 0 em Lch 20 to 10 Note Nominal specifications represent the design specifications All units should be able to approximate these Some will exceed and some may drop slightly below these specifications Limit specifications represent the absolute worst condition that still might be considered acceptable In no case should a unit fail to meet limit specifications A81H1SP 1 IMPORTANT SAFETY PRECAUTIONS Prior to shipment from the factory our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold However in order to maintain such compliance it is equally important to implement the following precautions when a set is being serviced Safety Precautions for LCD TV Circuit Before returning an instrument to the customer always make a safety check of the entire instr
76. removed or installed 3 Fig No showing procedure of part location 4 Identification of parts to be removed unhooked unlocked released unplugged unclamped or desoldered N Nut L Locking Tab S Screw CN Connector Unhook Unlock Release Unplug or Desolder e g 2 S 2 two Screws S 2 2 L 2 two Locking Tabs L 2 5 Refer to the following Reference Notes in the Table A81H1DC AS AA A V 2 LS 3 Rear Cabinet AN Az 381 SM 727279 DOSS 4747 2622625 o 22 N S 5 2 Stand Cover S 2 1 Stand Base 4 2 Fig D1 A81H1DC 6 Shield Box 5 Jack Holder D 4 Inverter Power CBA 4 3 A81H1DC 8 Jack CBA 9 Power Supply CBA O 2 N WI Fz WAS A81H1DC 4 4 17 Side Jack CBA 13 LCD Module Assembly Bracket L 12 Chassis Bracket R _ S 16 11 Stand Shaft R 11 Stand Shaft L S 15 4 5 A81H1DC TV Cable Wiring Diagram To LCD Module Assembly Inverter Power CBA Digital Main CBA Unit Side Jack CN4201 CN3707 CBA CL7002B CN3701 CN3601 CN3702 CN3705 CN500 CN501 CN200 Jack CBA CN201 CN2
77. s and noise blocking filters etc Use specified internal wiring Note especially 1 Wires covered with PVC tubing 2 Double insulated wires 3 High voltage leads Use specified insulating materials for hazardous live parts Note especially 1 Insulation Tape 2 PVC tubing 3 Spacers 4 Insulators for transistors When replacing AC primary side components transformers power cord etc wrap ends of wires securely about the terminals before soldering Observe that the wires do not contact heat producing parts heat sinks oxide metal film resistors fusible resistors etc Check that replaced wires do not contact sharp edged or pointed parts When a power cord has been replaced check that 5 6 kg of force in any direction will not loosen it Also check areas surrounding repaired locations Use care that foreign objects screws solder droplets etc do not remain inside the set When connecting or disconnecting the internal connectors first disconnect the AC plug from the AC supply outlet When installing parts or assembling the cabinet parts be sure to use the proper screws and tighten certainly LTVN_ISP Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration Observe that screws parts and wires have been returned to original positions Afterwards perform the following tests and confirm the specified values in order to verify compliance with
78. safety standards 1 Clearance Distance When replacing primary circuit components confirm specified clearance distance d and between soldered terminals and between terminals and surrounding metallic parts See Fig 1 Chassis or Secondary Conductor Primary Circuit Table 1 Ratings for selected area Clearance AC Line Voltage Distance d d U S A or gt 3 2 mm 110 to 130 V 0 126 inches Note This table is unofficial and for reference only Be sure to confirm the precise values 2 Leakage Current Test Confirm the specified or lower leakage current between B earth ground power cord plug prongs and externally exposed accessible parts RF terminals Exposed Accessible antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method Power ON n igh Impedance Insert load Z between B earth ground power cord plug prongs and exposed accessible parts Use an AC voltmeter to measure across both terminals of load Z See Fig 2 and following table Earth Ground Power Cord Plug Prongs Table 2 Leakage current ratings for selected areas AC Line Voltage Leakage Current i Earth Ground B to U S A or 0 15 uF CAP amp 1 5 Exposed accessible RES Connected in parallel parts Note This table is unofficial and for referen
79. so IHE 10H1NOO LNVNOS3H I by PTa 20871091 405298 00937 ee ww aaa wawas ara w wa wa w m n V8 un 195141 NOLLNALLV A0SZ V8 se AND ALON 2920 C 52039 gt av LHOITOVS WALSAS OL 6 wawam m wara wa Ave ANI fav LHOITMOVE m NS IH9 TMOV8 FINGOW 21 si Joy ui sued 10 941 esnj A0TZ 944 ewes eoe doJ Jo YSU 1sureBe penunuoo 104 i H Alddns y u sjueuoduJoo esneo ABU OSIMIOU1O jddns samod Bnid 199uuoo ou A ddns ui s ueuoduwoo yey 2258 o SI 0084 Bsn UIEN SIU ui pesn s Alddns 1 ony i A81H1BLP1 Power Supply 2 Block Diagram
80. ual IC3301 IC3301 is divided into seven and shown as IC3301 1 7 IC3301 7 7 in this Digital Main Schematic Diagram Section VIDEO SIGNAL AUDIO SIGNAL TU3001 TUNER UNIT DIGIIAL MAIN CBA UNIT DIGITAL 9 9 5V 2 4 07111 DIGITAL 8 9 5V 3 DIGITAL 5 8 0 1 1 wLa MOM SE C3305 0 1 en SE Sap C3306 0 1 5 0 1 1 gt C3308 0 1 1 C33091 0 1 C3310 0 1 i casi 0 4 C33421 0 4 C3313 0 14 at 1 C3316 0 1 0 1 C3318 0 1 1 CONTINUE DIGITAL 7 9 HOT PLUG1 E DIGITAL 4 9 PC AUDIO L Lim PC AUDIO R lt am 2 BK1608HS601 T 5 3019 BK160BHS102 T ogo m 31 1C3301 4 7 215HAEALA11FG DIGITAL SIGNAL PROCESS C3016 MAIN MICRO CONTROLLER 1000P NU NU VI REFMO VI REFPO VI BYPASSO VI REFM2 VI REFP2 VI BYPASS2 ADC2 AVDD O ADC2 AVDD 1 ADCO AVDD O ADC2 AVSS 0 ADCO AVDD 1 ADCO AVDD 2 ADC2 AVDD 2 ADC2 AVSS 1 ADCO AVSS 0 ADC2 AVSS 2 ADCO AVSS 1 ADCO AVSS 2 VI REFM3 VI REFP3 VI BYPASS3 VI REFM4 VI REFP1 VI BYPASS1 ADC3 AVDD O ADC3 AVDD 1 ADC3 AVDD 2 ADC1 AVDD O ADC1 AVDD 1 ADC1 AVDD 2
81. ument including but not limited to the following items a Be sure that no built in protective devices are defective and have been defeated during servicing 1 Protective shields are provided on this chassis to protect both the technician and the customer Correctly replace all missing protective shields including any removed for servicing convenience 2 When reinstalling the chassis and or other assembly in the cabinet be sure to put back in place all protective devices including but not limited to nonmetallic control knobs insulating fishpapers adjustment and compartment covers shields and isolation resistor capacitor networks Do not operate this instrument or permit it to be operated without all protective devices correctly installed and functioning Servicers who defeat safety features or fail to perform safety checks may be liable for any resulting damage Be sure that there are no cabinet openings through which an adult or child might be able to insert their fingers and contact a hazardous voltage Such openings include but are not limited to 1 spacing between the Liquid Crystal Panel and the cabinet mask 2 excessively wide cabinet ventilation slots and 3 an improperly fitted and or incorrectly secured cabinet back cover Antenna Cold Check With the instrument AC plug removed from any AC source connect an electrical jumper across the two AC plug prongs Place the instrument AC switch in the on
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