Orion DTV2784 Service Manual page 25

NO SOUND
Is sound setting appropriate ?
Yes
Is the waveform at pins 2,4,
10 and pin 12 of IC1001?
No
Is the AUDIO signal at pins
11 and 15 of IC701?
No
Is the AUDIO signal input
at pins 1, 3, 5~9 and 13 of
IC701?
No
Check J701, J706, J707, J708 and
at pins 19, 20 of CP2403 and
associated circuit.
TROUBLESHOOTING GUIDE
Yes
Yes
Yes
E-5
Check speaker.
Check IC701 and associated circuit .
Check the pins 2, 4 of IC701 and
associated circuit .