Philips DVDR3350H Service Manual page 18

EN 18 5.
3139 785 31500
5.3.5 Audio No Sound (TV & External Source)
NOTE1: To start debugging this section, playback a 0dB 1kHz sine wave from a test
disc on the external source which exhibits the problem.
NOTE2: All references are to Analog Board unless otherwise specified
Part 1
Upgrade Software & Repair Chart
Check connections on
connector 1600 and 1204
for visible disconnections
or loose connections
No visible problems with
connections
Go to Part1 and then Part2
Check supply voltage
I614 = 3.3V
OK
Check Test Point
SYSCLK I608 = square pulse 12.28MHz
F609, F610, F611 = square Pulse
OK
Check control line
I612 = 0V (low)
I611 = 1.7 V
I610 = 1.6V
OK
Check I316 & I319 = sine wave
&
Check I606 & I607= sine wave
OK
Replace Analog Board
Visible problems with
connections
Fix the cable connections
NOK
NOK
NOK
NOK
NOK
Replace the component in
between these 2 test point (Op
Change ADC
Replace Digital Board
Change ADC
Amp 7300)