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PDP TV

SERVICE MANUAL

PDP-42XR8DA

PRODUCT CODE No.

REFERENCE No.:SM0915034

1 682 344 43: CCIR DVB-T

FILE NO.

PRODUCT CODE No.

Содержание PDP-42XR8DA

Страница 1: ...PDP TV SERVICE MANUAL PDP 42XR8DA PRODUCT CODE No REFERENCE No SM0915034 1 682 344 43 CCIR DVB T FILE NO PRODUCT CODE No ...

Страница 2: ...instructions Method of software upgrading Working principle analysis of the unit Block diagram IC block diagram Wiring diagram Troubleshooting guide Schematic diagram APPENDIX A Assembly list APPENDIX B Exploded View 1 3 9 11 12 13 18 19 24 ...

Страница 3: ...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 Otherwise it might be possible to contact the high voltage or cause shock short circuit so that it may lead t...

Страница 4: ...d 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 Howe...

Страница 5: ...am connect the power and press standby button to turn on the TV a Test the pin voltage of X802 the data are shown in table1 Table1 voltage data of X802 X802 Pin1 2 3 4 5 6 7 8 9 10 11 Voltage 8 55 9 45V 0 4 85 5 35V 0 11 4 12 6V 0 4 85 5 35V 0 2 5V b Test the pin voltage of XV03 the data are shown in table2 Table2 voltage data of XV03 XV03 Pin1 2 3 4 5 Voltage 23 8 25 2V 0 c Test the pin voltage o...

Страница 6: ...s EXIT to exit the factory menu at any situation g Press OK to enter the sub factory menu h ADC ADJUST ADC correction of VGA Component channel Input AV SVIDEO SCART signal and check the function Preset ex factory Input HD signal and check the function of YPbPr Input VGA signal and check if the display is normal check the function analog control horizontal vertical center etc Check the accessories ...

Страница 7: ... doesn t need adjust r Picture Mode set the picture values of each channel Normally they are preset and needn t adjust s Backlight the default value is 100 and needn t to adjust normally t RFAGC it will be preset and prepare for adjustment later u There is data in EEPROM after software upgrade please perform Reset All before the first adjustment 4 2 ADC correction 4 2 1ADC correction in VGA channe...

Страница 8: ...fourth scale be 274 293 Adjust them slightly g When adjusting please keep the color temperature of high light to be X 274 10 Y 293 10 and the low light to be X 274 10 Y 293 10 h Move the cursor to COPY ALL and copy the data to the other channels i Check if the color temperature of HDMI NORMAL is up to the mustard low light acceptable error 15 high light acceptable error 15 if not adjust R GAIN B G...

Страница 9: ... 94 24 17 1920X1080 25 18 1920X1080 29 97 30 5 4 VGA terminal Input VGA signal VG848 signal generator separately input the signals listed in table6 and check the display and sound If the image is deflection of the Horizontal and vertical select Picture Screen Auto Adjusting to perform auto correct Table6 VGA signal format No Resolution H frequecny kHz V frequecny kHz Point clock pulse frequecny MH...

Страница 10: ...factory menu and select CUSTOM CHANNEL PRESET press OK and about 10s the operation will complete press list and there are 5 channels in the list menu 6 3 Enter user menu LOCK page select Restore Factory Default to preset the ex factory a Clear the program information b Clear VCHIP parental control etc c Set the default data of user menu d Set Menu Language to English e Set Power on Mode to Off 7 S...

Страница 11: ...e main board enter factory menu and set ISP Mode to ON 2 Using Mstar writing tool on line click Connect menu if it displays Device EN25B32 as shown in fig2 the connection is success if it fails select EN25B52 of Device manually and press Connect again Fig2 Device EN25B52 successful connection 3 Click Read and select the file written MERGE bin for example as shown in fig3 Fig3 the written file 4 Cl...

Страница 12: ...t 1 Make sure the USB device is formatted as FAT32 2 Copy the program named Merge bin to USB device 3 Insert the USB device to USB port of the unit power on and select RF ATV channel begin USB upgrade after OSD disappear It will display blue when read the data from USB device while display red when write Flash The flash must be pull out when display red It will flicker in red and blue if the proce...

Страница 13: ...or panel display HD audio signal via decoder built in MSD109 resumed to multi channel sound of Dolby AC 3 The audio signal will be sent to back end to perform bass adjustment and volume control then it will separate into L R channels and input to earphone amplifier BH3547F amplifying then output two ways One way will be sent to earphone another way will be sent to digital sound amplifier R2A15112F...

Страница 14: ...er control IC MSD109 to digital decode image scale and OSD superposition then output LVDS drive level for panel display HDMI audio signal via decoder built in MSD109 is fed to back end to bass adjust and volume control the sound will separate into L R channels and input to earphone amplifier BH3547F amplifying then output two ways One way will be sent to earphone another way will be sent to digita...

Страница 15: ...Supports HDTV RGB YPbPr YCbCr Supports Composite Sync and SOG Sync on Green separator Automatic color calibration DVI HDCP HDMI input ports Supports up to 225MHz 1080P 60Hz with 12 bit deep color resolution High bandwidth Digital Content Protection HDCP 1 1 compliant receiver High Definition Multimedia Interface HDMI 1 3 compliant receiver with CEC Consumer Electronics Control support Video Proces...

Страница 16: ...th SAW and supports demodulation of 6MHz 7MHz and 8MHz 2K 8K carrier and supports both serial and parallel TS stream output 3 R2A10406NP VIF frequency corresponds to 38 9MHz SIF frequency corresponds to M N B G I D K and SECAM L L I2CBUS control ...

Страница 17: ...15 4 PS321 The chip supports both I2C control and I O control mode supports both internal and external EDIT 5 R2A15112FP ...

Страница 18: ...16 6 TDA1616 ...

Страница 19: ...17 ...

Страница 20: ...18 Wiring diagram Power board Data board Panel Panel Logical board Signal Digital power supply Key board IR board Upgrade board Amplifier power Analog power Speaker Power switch ...

Страница 21: ...nterfered 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 Check to see if the power plug has been inserted properly into the socket No picture and sound Check to see if the power supply of liquid crystal TV has been switched on As can be indica...

Страница 22: ...ot work properly Check if the batteries are installed in the reverse order Check if the battery is effective Check the distance or angle from the monitor Check if there is any obstruct between the remote control and the TV set Check if the remote control signal receiving window is exposed to strong fluorescence No picture and sound but only hash Check if the antenna cable is correctly connected or...

Страница 23: ...n main board is normal Check STANDBY circuit of power supply board Press POWER button on the unit or sensor control and check the indicator Check if the PIN11 of X802 on main board is high level Check high voltage on power board Check high voltage on power board yes no no red blue Check POWER ON OFF control circuit on the main board no yes ...

Страница 24: ...ration Check if all channels have no signal Replace main board Enter factory menu initialization EEPROM then turn off the TV turn on again display picture Adjust main board again Replace main board no yes yes no yes Does display OSD menu on screen when press menu button yes no no ...

Страница 25: ...in board Is there sound in earphone Is there sound when touch CV04 CV05 with probe Check earphone amplify circuit Replace NV02 Check the audio output circuit of the main IC no yes no yes yes yes no Check if NV02 pin10 27 are high level If NS01 pin126 148 are low level no Check the path between NS01 pin 126 148 and NV02 pin10 27 Replace NS01 ...

Страница 26: ...data process ...

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Страница 34: ...KEY IR ...

Страница 35: ...power ...

Страница 36: ...power ...

Страница 37: ...2A10406NP 5271040601 CE6353 5276353001 PS321TQF 5270321001 R2A15112FP 5271511201 Key board XI6HU0520510 Power filter board XI6FK01051A0 Power board XI6HU0522010 Remote control XI6010J01701 Panel XI5205422206 RC J17 0A PDP42G1 APPENDIX A Main assembly PDP 42XR8DA MAIN COMPONENT AND IT S NO ...

Страница 38: ...PDP 42XR8DA ...

Страница 39: ...F EXPLODED VIEW NO DESCRIPTION 1 Front cabinet 2 Right speaker 3 Power board 4 Panel 5 Data processing board 6 Back cabinet 7 Stand 8 Power filter board 9 Key board 10 Left speaker 11 User manual 12 Remote control ...

Страница 40: ...rd 1 4 Panel 1 5 XI6HE0046910 Data processing board 1 6 XI5HI31LJ01B Back cabinet 1 7 XI6151062530 Stand 1 8 XI6FK01051A0 Power filter board 1 9 XI6HU0520510 Key board 1 10 XI6170740000 Left speaker 1 11 XI5944032680 User manual 1 12 XI6010J01701 Remote control 1 Only the parts in above list are used for repairing Other parts except the above parts can t be supplied ...

Страница 41: ...June 2008 ...

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