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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
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It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
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Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
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Great manual very clear copied. You are making an incredible job. I appreciate a lot the rapidity and your efficiency. Thanks a lot
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Good pdf of the service manual for this unit. Includes disassembly instructions, full schematics, board layouts, parts lists and diagnostic information. Some information is in the pdf twice (single pages, and split pages), but that could be how it was originally generated by panasonic, or perhaps the idea is to make it eaiser to put onto 8.5 x 11" pages.
Information was exactly what I needed. Delivery was overnight (less than 12 hours) and I was happy with the process.
Diagnostic Software, Trouble Shooting and Test Instructions 5.3
5.3.1
DVD640 /xx1
5.
EN 17
Fault Finding Trees
No Operation
The player does not operate No OSD and FTD display No pix and sound
Put the Mains switch to ON
� Check Power supply +5V and +/-12V to the Mpeg board
NO
� �
Check supply voltages at connector 1202 Pin 1&3 è +5V è Pin 5 +12V Pin 7 è -12V Check / Replace cable connection to con 1202 Check / Replace Power Supply Unit
YES
Check Power supply +3V3 and +2V5 to IC 7101 board
NO
� �
Check / Replace safety resistor 3200 Check / Replace 3V3 regulator 7206 and transistor 7220
YES
ch1 ch2 RESET
1 T
Check RESET signal at pin 24 / 7101 and pin 12 / 7100
NO
� �
Check +5V supply to IC 7230 Check / Replace RESET IC 7230
2
YES
� � � � � Check +5V supply voltage to IC 7104 Check / Replace IC 7104 Check / Replace crystal 1153 Check / Replace C2140 and C2141 Check / Replace resistor 3145,3146,3147 3148 and 3150
2V / div DC 20ms / div
27MHz CLK ch1
Check 27MHz clk input at pin 105 /116 /117 of IC 7101
NO
1
YES
ch1
Check SDRAM CLK 108MHz at pin 38 / 7102 �
1V / div DC 50ns / div
SDRAM CLK
ch1:freq=108MHz
NO
� �
Check +3V3 supply voltage to IC 7102 Check / Replace resistors 3171 Check / Replace processor IC 7101
1
Note: There should be mechanical
YES
ch1
PM3380B
Fig A
T
1V / div DC 10ns / div
Measure waveform at pin 16 of Flash IC 7100 at Power-on and the waveform should look like in Fig A: � During initialization �waveform appear for 1 sec and go low for next 1 sec. � After start-up-continuous waveform.
1
1.00V / DC 200ms / div
�
Is the waveform present ?
NO
� � � � �
Check +3V3 supply voltage to IC 7100 Check / Replace jumper 4109 Check / Replace Flash IC 7100 Check HSYNC at pin 10 / 7301 Check +5VAV supply to IC 7301 Check / Replace Video DAC IC 7301
YES
� Check / Replace processor IC 7101
CL 26532068_024.eps 100702
Figure 5-1 No operation
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