PHILIPS DVD640/051
Manual de Servicio

Diagnostic Software, Trouble Shooting and Test Instructions
5.3.5 No Digital Audio Out

DVD640 /xx1

5.

EN 21

No Digital audio out from coaxial

Put the Mains switch to ON and play a DVD disc. Ensure that SPDIF set-up in the Setup Menu is set to PCM.

� Check waveform at Pin 41 / 7101 Mpeg Board

Check / Replace Decoder IC 7101
ch1

PM3380B

SPDIF

NO
1

YES
� Check waveform at output of buffer IC 7202 Check +5VAV supply to buffer IC 7202 Check / Replace buffer IC 7202

2.00 V / DC 0.0 ns / div

NO

�

YES
� � Check continuity from output of IC 7202 to pin 3 of con 1203A Check /Replace R3253,R3254 and C2242

CL 26532068_022.eps 030702

Figure 5-5 No Digital audio out