PDP TV SERVICE MANUAL PDP
Contents
1. 1 15 If a fixed picture is displayed for a long time difference in its brightness and color may occur compared with movable pictures But it doesn t show any problem and the reason is that there is reduced density of fluorescent powder in the former On the other hand even if changes take place in the picture it can keep its brightness for a period of time several minutes It s a feature inherent with plasma and it s not abnormal However please try as much as possible to avoid showing a still picture of high brightness for a long time during operation 1 16 As a digitalized display devise this module is provided with error diffusion technology and the gray scale and false enhancement of contour can be displayed by reusing of sub field As compared with cathode ray tube it can be found in the moving picture that at the brim of the face of a person there are some wrong colors 1 17 During the display of graph indicating the gradual change in brightness horizontally or vertically resulting from gray scale test it can be found that the brightness for the two adjacent levels is uneven This is caused by the reuse of sub field the display of load rectification and the electrolysis 1 18 The screen front plate is of glass Please make sure that the screen has been put in place during erection If it is not in place before the erection begins it may lead to screen crack or breakage 1 19 Make sure the screw used in the mounting of the sc2. VDDC gt 2 SENDS ON gt lt S 2 129 BADR O 2 TDA4470 Block Diagram Offset T Loop O L switch comp filter optional Y VCO 1 1 AFC switch AFC VIF Video CAGC HHI Standard switch Tuner O Vs lt H Take over CRef point p SIF 2 Intercarrier FM NICAM SIF input switch O SIF 1 25 AF AM 4 9 16 95 10851 Figure 1 Block diagram Pin Description Vi SIF2 Vi SIE2 Reomp Vo AM Vo FM Vs VAFC Cnef GND CBRL Figure 2 Pinning 3 TPA3120D2 The TPA3120D2 is a 20 W per channel efficient Class D audio power amplifier for driving stereo single ended speakers or mono bridge tied load The TPA3120D2 can drive stereo speakers as low as 4 The efficiency of the TPA3120D2 eliminates the need for an external heat sink when playing music The gain of the amplifier is controlled by two gain select pins The gain selections are 20 26 32 36 dB The outputs are fully protected against shorts from GND to ROUT or LOUT and output to output shorts with an auto recovery feature Pin Symbol Function 1 2 Vi sii SIF1 input symmetrical 3 Vsw Input selector switch 4 9 16 GND Ground 5 Cacc SIF AGC time constant 6 7 Vi vip VIF input symmetrical 8 CAGC VIF AGC time constant 10 Rtop Take over point tuner AGC 11 Itun Tuner AGC output cu
3. TV L R SCART2 L R OUT AV OUT AV L R OUT 4 AMP CVBS SCART2 V OUT SCARTI L R OUT TV L R IC block diagram 1 MST9E89DL MST9E89DL is a high performance and fully integrated IC for multi function LCD monitor TV with resolutions up to full HD 1920x1080 It is configured with an integrated triple ADC PLL an integrated DVI HDCP HDMI receiver a multi standard TV video and audio decoder two video de interlacers two scaling engines the MStarACE 3 color engine an on screen display controller an 8 bit MCU and a built in output panel interface By use of external frame buffer PIP POP is provided for multimedia applications Furthermore 3 Dvideo decoding and processing are fulfilled for high quality TV applications To further reduce system costs the MST9E89DL also integrates intelligent power management control capability for green mode requirements and spread spectrum support for EMI management PIN DIAGRAM 5 9 8901 725 GPIOE 2 225 GPIOE 3 224 GND 277 GPIOE 1 RXCKN 1 RXCKP 2 GND 3 3 5 1 AVDD 33 6 RX1N RxiP 3 25 RX2N 16 RX2P AVDD 33 121 REXT DDCD DA 4 DDCD CK HSYNC1 16 5 RMID 181 VCLAMP 19 20 REFM BIN1P 22 SOGIN1 GINIP 25 GIN1M 26 281 BINOM BINOP GINOM GINOP 32 SOGINO 33 RINOM 34 RINOP 35 AVDD 33 GND HSYNCO 38 1 VSYNCO 32 V
4. out of focus or jumping Bad status in signal receiving Poor signal Check if there are failures with the electrical connector or the antenna Check if the antenna is properly connected Fringe in picture Check if the antenna is correctly oriented Maybe there is electric wave reflected from hilltop or building Picture is interfered by stripe shaped Possibly due to interference from automobile train high bright spots voltage transmission line neon lamp etc Maybe there is interference between antenna and power supply line Please try to separate them in a longer distance Maybe the shielded layer of signal wire is not connected properly to the connector There appear streaks or light color Check if interfered by other equipment and if interfered possibly by the equipment like transmitting antenna non professional radio station and cellular phone 1 2 TV set Symptoms Possible cause Unable to switch the power on Checkto see if the power plug has been inserted properly into the socket No picture and sound Checkto see if the power supply of liquid crystal TV has been switched on As can be indicated by the red LED at the front of the TV set See if it s receiving the signal that is transmitted from other source than the station Checkifit s connected to the wrong terminal or if the input mode is correct Checkifthe signal cable connection betwe
5. sure that you put down a soft cushion or cloth so _ that your TV is not scratched lt 2 Loosen the eight Mb screws on the Stand h 2 bottom to remove the Stand Please keep these screws for future use if you want to install the stand again To install the stand I Lay your TV flat screen down on a table or bench Make sure that you put down a soft cushion or cloth so that your TV is not scratched 2 Insert the stand column into the hole in the TV bottom and then secure the stand to the TV with eight M5 screws M5 screws e Do not remove the stand from the TV unless using an optional bracket to mount it e The appearance of the unit may differ from the actual one Wall Mounting Safety Precautions 1 Thoroughly read this instruction before setup and follow the steps below precisely 2 Very carefully handle the unit during setup and consult authorized service personnel to ensure successful installation 3 The wall to be mounted should be made from solid materials 4 Do not uplift the speaker when moving the plasma display Note all the wall mounting components are optional and may be unavailable in your model Below we will show you how to mount the plasma display on the wall using our company s wall mounting components Identifying the Following Parts Frame holder 1piece M8 Expansion bolt 4 5 T4 Wood screw 24pcs w Combined Screw 4pcs M4 Screw 2pcs Connector 4pcs Wa
6. vary from one model to another and therefore not interchangeable Be sure to use the same type of screen in the replacement 1 2 The operation voltage is approximately 350V for PDP module including screen driving circuit logic circuit and power module If you want to conduct maintenance work on PDP module when the set is in normal operation or just after the power is off you must take proper measures to avoid electric shock and never have direct contact or touch with the circuitry of the working module or metal parts That s because within a short time relatively high voltage still remains on the capacitor of the driving part even after the power is off Make sure to begin relevant maintenance operation at least one minute after the power is off 1 3 Don t apply on the module any power supply that is higher than the specification If the power supply used deviates from the value given in the specification there might be a possibility of leading to fire or damage to the module 1 4 Never have operation or mounting work under unsuitable environment such as areas in the vicinity of water bathroom laundry water chute of kitchen sources of fire heat radiation parts or direct exposure to sunlight Otherwise there will be kickbacks 1 5 In case foreign substances such as water liquid metal slices or others fall into the module carelessly power must be cut off immediately Keep the module as it is and do not move anything on the module Otherw
7. 1 Initialization Enter factory menu select OPTION and HOTEL OPTION sub menu adjustment of items to see table1 Table1 sub menu adjustment Items Preset Introduce HOTEL 0 1 HOTEL OPTION of factory menu is optional 0 HOTEL OPTION of factory menu is not optional LOGO 1 1 display LOGO in no signal or turn on 0 no LOGO display ADC PRESCALE 00A adjust according the power consumption SIF PRESCALE 000 adjust according the power consumption BACK LIGHT 28 Adjust according the screen ALL COLOR 1 1 white balance of each channel auto offset based on the HDMI white balance 0 white balance of each channel adjust the offset base separately ISP 0 0 no upgrade on line 1 upgrade on line NO STANDY 00 01 turnon 00 memory function of turn 10 standby INIT VOLUME 0 100 Volume when turn on INIT CHANNEL 1 200 Channel when turn on INIT SRC Program source Input Source when turn on EEPROM MEMORAY EEPROM Initialization operate when EEPROM data chaos RECALL 3 2 Adjustment for AFT and AGC of IF channel in TV 3 2 1 IF AFT adjustment Disconnect J601 B face input 80dB 38 9MHz PAL signal to the pole of J601 near the socket adjust L604 to value 1 65V of TP602 enter the factory menu set TDA4470 from BG to LL and input 80dB 33 9MHz SECAM signal adjust RP602 to value 1 65V of TP602 then weld J601 3 2 2 IF AGC adjustment Input 184 25MHz RF signal of 60dB to RF terminal adjust RP
8. 601 to value 4V of TP604 and there should be no obvious snowy picture Increase the input signal to 904 and it should be no obvious noisy 3 3 White balance adjustment 3 3 1 HDMI white balance adjustment a Input VG 848 signal to HDMI TIMING854 800 600 60Hz of PAT920 8 gray scale signal adjust the balance with CA210 b Enter COLOR TEMP sub menu and select color temperature of standard 9300K the value of coordinate is recommended c Fixed B GAIN adjust R GAIN G GAIN to let the color coordinate of the seventh level be 285 293 Fixed BOFF adjust R OFF G OFF to let the color coordinate of the second level be 285 293 and the brightness is about 3nit 10nit Repeat adjust GAIN GAIN OFF and OFF until the color coordinate of the two level gray scale be 285 293 3 3 2 VGA YPbPr AV white balance check and correct a Connect VG 848 signal of VGA to VGA terminal and input TIMING854 800 600 60HZ PATTERN CROSS and auto adjust to full screen then input PAT948 white and black signal enter submenu of ADC ADJ select AUTOTUNE and wait for OK display Input PAT920 8 gray levels check if the white balance is normal if not set ALL COLOR to 0 and fine adjust according the method of 3 3 1 b connect VG 848 YPbPr signal to YPbPr terminal and input 972 10801 60 2 PAT908 color bar include back white bars enter submenu of ADC ADJ select AUTOTUNE and wait for OK display Input PAT920 8 gray levels check if
9. OSD freeze mute stereo etc 5 8 presetting before ex factory Item Setting Item Setting Item Setting PICTURE MODE STANDARD BALANCE 50 OSD LANGUAGE English COLOR MODE NORMAL VOLUME 50 OSD HPOSITION 50 AFC ON SLEEP TIMER OFF OSD VPOSITION 50 ZOOM FULL TTX LANGUAGE WEST OSD HALFTONE 50 SOUND MODE STANDARD OSD DURATION 15 OFF Working principle analysis of the unit The RF signal received by antenna will be sent to tuner 601 then IF signal will be obtained through high amplified and mixed frequency After pre intermediate amplified by V608 it will be sent to acoustic surface wave Z605 to do IF filter and get better IF characteristics then it will be sent to N602 TDA4470 to do intermediate amplification phase lock loop VCO and synchronous wave detection to get the video signal TV V after pre intermediate amplification IF will also be sent to acoustic surface wave 2604 to do filter at the same time the it will be sent to 404 to do intermediate amplification and output the second sound intermediate frequency signal TV SIF TV V output from TDA4470 and TV SIF will be sent to the main IC N304 MST9E89DL Video and audio signals of AV S VGA YPbPr will be sent to MST9E89DL too 3 groups HDMI after PS321 selecting their video and audio signal will be sent to MST9E89DL RGB of SCART1 AV S Y 5 of SCART2 will also be sent to MST9E89DL their audio signal and YPbPr AV S a
10. SANYO FILE NO SERVICE MANUAL PDP 42XR7K PRODUCT CODE No PDP TV 1 682 346 32 PAL SECAM NTSC AV REFERENCE 5 0915051 5 Seria EN Alignment isesd Working principle analysis of the 2 0 2 00020202 BOCK CAG RAIN M IG block diagram EEUU WITIng AGIAN Troubleshooting guide sous suns Schemati A APPENDIX A Assembly list APPENDIX B Exploded view APPENDIX C Removing or installing the stand APPENDIX D Wall mounting Note This maintenance manual is intended only for the reference of the maintenance people Please pay attention to the following points before carrying out the maintenance work Safety Precautions Please read the Points for attention for the Maintenance amp Repair of PDP and Criterion for Identifying the Defects on Screen as below before inspecting and adjusting the TV set 1 Points for attention for the Maintenance amp Repair of PDP To avoid possible danger damage or jeopardy to health and to prevent PDP screen from new damage the maintenance people must read the following carefully If they ignore the following warnings there will be deathful risks 1 1 Screens
11. SYNC2 30 BIN2P BIN2M SOGIN2 GIN2P GIN2M RIN2P RIN2M 37 Ci Yi 50 YO 2 CVBS3 53 CVBS2 57 CVBS1 VCOMI CVBSO VCOMO CVBSOUT 59 GND 5 SIFOM SIFOP 2 AVDD SIF 63 SIFIP 61 222 LVBOM 221 LVBOP 220 LVB1M 219 LVB1P 218 LVB2M 217 LVB2P 216 LVBCKM 215 LVBCKP 214 LVB3M 213 LVB3P 212 LVB4M 211 LVB4P 210 GND 209 VDDP 208 LVAOM 207 LVAOP 206 LVA1M 205 LVA1P 204 LVA2M 203 LVA2P 202 LVACKM 201 LVACKP 200 LVA3M 199 LVA3P 158 LVAAM 197 LVA4P 196 VDDP 195 VDDC 194 AVDD MPLL 193 PWM3 225 VDDP 4 Jg 101 121 ee I e e Is Ie 5 EE dle 12525825556 5 55 BOS 2 2 lt 29 lt 2 lt 209 gt 25 gt 255226656666655 556 2 555 2 gt lt 55522285888888686 24 2 z2222 00000000 DQS 1 E MDATA 15 MDATA 6 MDATA 5 C MDATA 4 115 VDDM 177 MDATA 3 MDATA 2 119 MDATA 1 20 MDATA O 00910 1727 2 MVREF 121 MCLKE 751 MCLKZ 1271 MCLK E27 BADR 1 25 192 PWM2 DIGO 8 190 DIGO 7 157 DIGO 6 188 DIGO 5 187 DIGO 4 186 DIGO 3 i85 DIGO 2 DIGO 1 DIGO 0 182
12. en video frequency source and the liquid crystal TV set is correct Deterioration of color phase or color Check if all the picture setups have been corrected tone Screen position or size is not proper Check is the screen position and size is correctly set up Picture is twisted and deformed Checkto see if the picture frame ratio is properly set up Picture color changed or colorless Check the Component or RGB settings of the liquid crystal TV set and make proper adjustment according to the 13 signal types Picture too bright and there is Checkifthe contrast setting is too high distortion in the brightest area Possibly the output quality of DVD broadcaster is set too high It maybe also due to improper terminal connection of the video frequency signal in a certain position of the system Picture is whitish or too bright in the Check if the setting for the brightness is too high darkest area of the picture Possibly the brightness grade of DVD player broadcaster is set too high No picture or signal produced from Checkifthe cable is disconnected the displayer if in search Checkifit s connected to the proper terminal or if the input appears mode is correct There appears an indication Checkifthe TV set can receive input signal The signal is outside the receivable scope not correctly identified and VGA format
13. he Frame Holder a Put the unit close to the wall Frame Holder aiming the four wall mounting connectors to the four calabash shaping holes Insert the wall mounting connectors into the calabash shaping holes let the unit slowly slide down to the end of the calabash shaping holes and be sure the mounting is secure b Tightly screw the left and right M4 screws marked with to prevent the display from falling from the Frame Holder SANYO SANYO Electric Co Ltd Dec 2008
14. ic bag and before operation make sure to have it sufficiently grounded 1 11 There are a big number of connection wires distributed around the screen Please take care not to touch or scuff them during maintenance or removing the screen because once they are damaged the screen will fail to work and it s not possible to repair it If the connection wires connectors or components fixed by the thermotropic glue need to disengage when service please soak the thermotropic glue into the alcohol and then pull them out in case of damage 1 12 Connector for the circuit board of the screen part is relatively fine and delicate Please take care in the replacement operation lest it should get damaged 1 13 Special care must be taken during transportation and handling because strenuous vibration could lead to screen glass breakage or damage on the driving circuitry Be sure to use a strong outer case to pack it up before transportation or handling 1 14 Please put it for storage in an environment in which the conditions are under control so as to prevent the temperature and humidity from exceeding the scope stipulated in the specification For prolonged storage please cover it with anti moisture bag and have them piled and stored in one place The environmental conditions are tabulated as below Temperature Scope for operation 0 50centigrade Scope for storage 15 60centigrade Humidity Scope for operation 20 80 Scope for storage 20 80
15. if X403 PIN9 5V of main board 18 normal check the indicator blue Check if the PIN3 of X401 on Check STANDBY circuit of 2 main board is high level power supply board yes Check the panel LVDS wires or the wires connect panel and power Check if the PIN11 of X403 in Check N304 and its main board is high level periphery yes Check N304 and its Check power periphery supply board 15 2 2 Have raster but no picture Check if the unit button Does display OSD and remote control menu in screen when operation press menu button Check if the all channels have no signal HDMI VGA YPRPB Enter factory menu Which channel is initialization EEPROM no signal then turn off the TV turn on again display Check N304 and picture its periphery Adjust main board again 1 1 Check if there is Check N304 and signal or noisy of X405 its periphery TP601 on main board Check if TUNER601 11 IF output is normal Check TUNER601 and its periphery Check N602 and its periphery 16 2 3 No sound TV channel Check if the voltage Check the wave of Check N203 and of N203 pinl 3 10 pin 5 6 of N203 its periphery 12 19 20 are normal Check the wave of Check N304 and N602 pin 24 its periphery Check power board Check the wave of Check N602 and TUNER601 pin 11 its periphery Check TUNER601 and its periphery 17 APPENDIX A Main as
16. is beyond the specified scope Remote control cannot work Checkifthe batteries are installed in the reverse order properly Checkifthe battery is effective Check the distance or angle from the monitor Checkifthere is any obstruct between the remote control and the TV set Checkifthe remote control signal receiving window is exposed to strong fluorescence No picture and sound but only Checkifthe antenna cable is correctly connected or if it hash has received the video signal correctly Blur picture Checkifthe antenna cable is correctly connected e Of if it has received the right video signal No sound Checkifthe mute audio frequency setting is selected Checkifthe sound volume is set to minimum Make sure the earphone is not connected Checkifthe cable connection is loose When playing VHS picture search When being played or in pause VHS picture search tape tape there are lines at the top or bottom of the picture sometimes can t provide stable picture which may lead to incorrect display of the liquid crystal TV In this case please press auto key on the remote control so as to enable the liquid crystal TV set to recheck the signal and then to display correct picture signal 14 2 Troubleshooting guide 2 1 No raster Connect the power check if yes the red indicator is light in STANDBY Press POWER button on the red unit or remote controller and Check
17. ise it might be possible to contact the high voltage or cause shock short circuit so that it may lead to fire or electric shock 1 6 If there is smoke abnormal smell or sound from the module please cut the power off immediately Likewise in case the screen doesn t work when the power is on or during the operation please also cut off the power at once No more operation in this case 1 7 Do not remove or plug its connection wire when the module is in operation or right after the power is off Thats because there remains a relatively high voltage on the capacitor of the driving circuit If there is a need to remove or plug in the connection wire please wait at least one minute after the power is off 1 8 Considering the module has a glass faceplate please avoid extrusion by external force lest it should cause glass breakage that may get people injured Two people are needed in cooperation to move this module lest contingency takes place 1 9 The complete TV set is designed on the basis of full consideration of thermal dissipation by convection with the round hole on the top for heat emission To avoid overheat please do not have any covering on the hole during normal operation and never put it in the place where the space is narrow and in bad ventilation 1 10 There is quite a number of circuits in PDP that are integrated ones Please be on guard against 1 static electricity During maintenance operation be sure to cover yourself with anti stat
18. ll Mounting continued Mount the Frame Holder On the Wall Mount on the concrete wall 1 Insert and screw 2pcs 4 screws on each side of the holder Refer to mark in Fig 1 and the depth is about 8mm 2 Fix the Frame Holder on the wall with 4pcs M8 expansion bolts and confirm they are securely fixed and reliable refer to mark O in Fig 1 3 Make sure that when the max load to the Frame Holder is larger than 1500 Newton the Holder should not fall down and the wall should not be broken 4 0 Mount on a wooden structure 1 Insert and screw 2pcs 4 screws on each side of the holder Refer to mark in Fig 2 and the depth is about 8mm 2 Fix the Frame Holder on the wall with at least 16pcs T4 wood screws and confirm they are securely fixed and reliable refer to mark in Fig 2 Make sure that when the max load to the Frame Holder is larger than 1500 Newton the Holder should not fall down and the wall should not be broken Wall Mounting continued Remove the Screws Remove the 4 5 8 screws on the rear of the display Mounting the Connectors 1 Mount 4pcs connectors to the four Combined screw corners of the rear of the plasma display with 4pcs Combined Connector Screws Qe qe 24 The direction of the Connectors should be strictly conform to the diagram illustrated Wall Mounting continued Mount the display to t
19. or left channel H bridge not internally connected to PVCCR or AVCC LOUT 22 19 Class D 1 2 H bridge positive output for left channel PGNDL 23 24 20 ground for left channel H bridge VCLAMP 11 9 Internally generated voltage supply for bootstrap capacitors BSR 16 13 Bootstrap I O for right channel ROUT 15 12 Class D 1 2 H bridge negative output for right channel PGNDR 13 14 11 Power ground for right channel H bridge PVCCR 10 12 10 Power supply for right channel H bridge not connected to PVCCL AVCC AGND 9 Analog ground for digital analog cells in core AGND 8 Analog Ground for analog cells in core BYPASS 7 6 clu Nominally equal to 8 Also controls start up AVCC 19 20 16 17 High voltage analog power supply Not internally connected to PVCCR or PVCCL 11 Wiring diagram Power board Power board Jexyeeds IR board Aam Main power LVDS output X403 X302 L R PWM Tuner power Amplifier power Audio output X401 X404 X202 X203 jeuBis LYYOS Main board p180q uonoeuuoo 1HV2S jeuBis HVOS 12 Trouble shooting 1 Fault clearance Before servicing please check to find the possible causes of the troubles according to the table below 1 1 Antenna signal on the screen Picture is
20. reen is of the original specs lest it should cause damage to the screen due to mismatch Special care should be taken not to use too long or too big screw 1 20 Care must be taken to guard against dust during assembling or dismantling especially to avoid dirt from falling in between the screen and the glass lest it should harm the receiving and viewing effect 1 21 There is piece of insulator stuck on the rear chassis corresponding to the power supply board It is used to isolate the cool part from the hot part Please take care to keep it intact lest it should become a potential safety trouble 1 22 In addition to plasma screen the glass is a part of high value It has such functions as anti radiation adjustment of color temperature etc Please handle it carefully Alignment instructions 1 Test equipment 5518 video signal generator VG 848 VGA and HDMI signal generator CA210 color analyzer 2 Alignment flow chart The alignment flow chart is shown as fig 1 Check DDC HDCP KEY FLASH Preset ex factory Fig 1 adjustment flow chart 3 Unit adjustments Connect all the boards according to wiring diagram connect with power and observe the display Method for entering factory menu press INPUT 2 5 8 and 0 in turn to enter factory menu press and CH to select adjustment items and press VOL and VOL to adjust value items press MENU repeatedly to exit 3
21. rrent 12 Vo vid Video output 13 Vsw Standard switch 14 Vsw L switch 15 Black level capacitor 17 Internal reference voltage 18 LF Loop filter 19 Vsw AFC switch 20 21 Vvco VCO circuit 22 VAFC AFC output 23 Vs Supply voltage 24 Vo rM Intercarrier output 25 AF output AM sound 26 Rcomp Offset compensation 27 28 Vi sir2 SIF 2 input symmetrical 10 PVCCL SD PVCCL MUTE LIN RIN BYPASS AGND AGND PVCCR VCLAMP PVCCR PWP TSSOP PACKAGE TOP VIEW 1 2 3 4 5 6 7 8 9 JD DIP PACKAGE TOP VIEW PGNDL PVCCL PGNDL SD LOUT MUTE BSL LIN AVCC AVCC RIN GAINO BYPASS GAIN1 AGND BSR AGND ROUT VCLAMP PGNDR PVCCR PGNDR TERMINAL FUNCTIONS TERMINAL yo DESCRIPTION SD 2 2 Shutdown signal for 1 low disabled high operational TTL logic levels with compliance to AVCC RIN 6 5 Audio input for right channel LIN 5 4 Audio input for left channel GAINO 18 15 Gain select least significant bit TTL logic levels with compliance to AVCC GAIN1 17 14 Gain select most significant bit TTL logic levels with compliance to AVCC MUTE 4 3 Mute signal for quick disable enable of outputs high outputs disabled low outputs enabled TTL logic levels with compliance to AVCC BSL 21 18 I O Bootstrap I O for left channel PVCCL 1 3 1 Power supply f
22. sembly PDP 42XR7K NAME MAIN COMPONENT AND IT S NO N304 MST9E89DL 5270989005 Main board XI6HK03001 10 N602 TDKA470MFL 5274470001 N203 TPA3120 D2 5273120001 SCART connection board 6 0304610 Eoo o o oo Keyboard 71 Powerfiterboard Powerboard APPENDIX B Exploded view 42 7 PART LIST OF EXPLODED VIEW DESCRIPTION Left speaker 5 6 Power filter board 8 SCART connection board 900 Main board PART LIST PDP 42XR7K ver 1 0 1 0617074100 Rightspeker J 1 2 6170740000 Leftspeaker 40005 30000 5 4 1 Frontcabinet J tf a 0040 Keyboard ft e 0105110 Powerfierboard 1 O 70000 522010 Powerboard ft 800 04610 SCART connection board 0 5 9 00110 Mainboard ft Ho 5 31018 1 00 41 6151062500 stand 4020 1200 044034370 User manual J Ao O 13 00 6010 06006 Remote control 15 Only the parts in above list are used for repairing e Other parts except the above parts can t be supplied Removing or Installing the Stand To remove the stand if wall mounting your flat screen down on a table or bench Make
23. the white balance is normal if not set ALL COLOR to 0 and fine adjust according the method of 3 3 2 c Input AV signal PM5518 8 gray scale to VIDEO terminal and check if the white balance is normal if not set ALL COLOR to 0 and fine adjust according the method of 3 3 2 Note it can t set back to 1 once ALL COLOR changes 00 4 Software upgrading Enter factory menu and select OPTION set ISP to 1 and you can upgrade the software on line After upgrade it needs to set ISP back to O if it can not display the image during the upgrading join J201 on main board then perform the upgrading when upgrade finish disconnect J201 again 5 Performance check 5 1 TV function Enter searching menu auto search connect RF TV terminal with central signal source and check if the picture is normal if there are channels be skipped Check TXT and parental control function 5 2 AVIS YPbPr terminals Input AV S YPbPr YCbCr HD signals check if it is normal 5 3 VGA terminal Insert VGA terminal input VGA format signal of 640X480 60 Hz and check if the display is normal 5 4 HDMI terminal Insert HDMI terminal input 640X480 60Hz signal check if the display is normal Check HDCP function 5 5 check sound channel Check the speaker and earphone of each channel 5 6 RS232 terminal Insert the earphone wire to COM port check the long distance control function with special test software 5 7 other function check Check the asleep timer picture sound mode
24. udio signal via audio switch 4052 selection to MST9E89DL The main N304 MST9E89DL is a high performance and fully integrated IC which can realize HDMI interface processing video decoding video switch selection A D and D A conversion interlace de interlace processing modes conversion OSD and low voltage differential output etc And it also has functions of audio selection processing and MCU The video signal via MST9E89DL processing output 4 pairs differential signal and 1 pair clock signal for PDP panel display TV V from TDA4470 after video double amplifying and sent to SCART1 as AV OUT AV processed by MST9E89DL after quadruple amplifying and output as AV OUT and SCART2 AV OUT The audio signal via MST9E89DL processing it will be sent to N206 BH3547F amplifying to earphone The audio signal will also sent to sound amplifier N203 TPA3120 D2 amplifying to speaker TV L R processed by MST9E89DL will be sent to SCART1 for AV OUT at the same time TV L R and AV L R will output together as the audio output of AV OUT and SCART2 AV OUT Block diagram EDID EDID 24 02 24 02 HDMI 1 2 PS321 n por VGA L R VGA DTV PDP TV EEPROM SCARTI RGB CONTROLLER 6 MST9E89DL E SCARTI L R AUDIO SW SCART2 L R ore L R YPbPr PANTY L R AV S SCART2 Y SCART2 C AV AUDIO AMP S VIDEO BH3547F TUNER SAW EAR PHONE BALA AUDIO TDA4470 SPEAKER TPA3120D2 AV LIR SCARTI V OUT
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