This manual is accurate and of high quality. It is only volume 2 of the service manual. This is schematic, parts lists, and exploded mechanical drawings. The theory of operation and the diss-assembly instructions are in volume 1. The unit can be tricky to dis-assemble portions of so the volume 1 manual can be important. The product description of the manual is accurate but it does not say anything about volume 1 and the image of the front page does clearly say Volume 2.
Wellll again thank you very much fast and effective. Clear and well done for such an old TV!!!!
Text excerpt from page 147 (click to view)
5
6
7
8
A
In a case when no image from any input appears
• Reset discharge is occurred. • Mask is displayed. • DSD is not displayed. YES Examination of the MAIN board YES Is the voltage at Pin 51 of IC8501 3.3 V DC? NO Disconnect the cable from the PN1 connector. Check if 3.3V DC is output from Pin 1 of PN1. YES YES Waveform 33 Failure in the MAIN PWB NO Failure in the power supply unit, or PN1 cable broken
B
NO
Diagnosis of Panel Module
Is a CLK signal input to Pin 12 of IC8501? And are sync signals input to Pins 55 and 57? Is a DE signal input to Pin 58?
YES
Failure in the IC8501
C
NO Is the voltage at Pin 1 of PN2 connector 2.5 V DC? NO Disconnect the cable from the PN2 connector. Check if 2.5V DC is output from Pin 1 of PN2. YES YES Is the voltage at Pin 4 of IC8002 1.5 V DC? YES Is the voltage at Pin 5 of IC8003 1.5 V DC? YES NO Failure in the IC8003 NO Failure in the MAIN PWB NO Failure in the power supply unit, or PN2 cable broken
Failure in the IC8002
D
Waveform 34 NO Failure in the X8001
Is a CLK signal input to Pin 3 of X8001? YES of X8002? YES Failure in the MAIN PWB
