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3. SOUND TROUBLESHOOTING
NO SOUND OUTPUT
Check Connector
Main B’d:CN12,CN14
Video B’d:CN103
Option B’d:CN206
Check
Audio Process
IC301(TA1343N)
Check
Audio Amp.
IC351
(TPA3002D2)
*(NOTE)
Pass
Pass
Pass
Pass
Check
Audio Input Slect
IC41 (CXA2069)
Check Connector
Sound B,d:CN301
Pin#1,3
* Check Audio Signal CN7
Video & Option B’d : Pin#6,8
. Check Audio Input IC41
Pin #2,4,9,11,16,18
* Replace Device
Fail
Fail
Sound B,d Check
*NOTE
Sound output device(IC351) has over lod protection circuit.
If speaker terminal is shorted in a moment.
Sound funtion is stopped until the power seitch off and on.
* Check the Power
(9V)
* Replace Device
IC301
* Check the Power
(12VA)
* Repiace Device
IC351
Pass
Summary of Contents for PFM-42V1E
Page 48: ...SCHEMATIC DIAGRAM 48 1 DSUB AD9888 ...
Page 49: ... 49 2 SCALER ASI510 ...
Page 50: ... 50 3 MEMORY ...
Page 51: ... 51 4 FLI2310 ...
Page 52: ... 52 5 VPC3230D ...
Page 53: ... 53 6 CXA2171AQ BA7657 CONNECTOR ...
Page 54: ... 54 7 MICOM ...
Page 55: ... 55 8 POWER ...
Page 56: ... 56 9 AUDIO ...
Page 57: ... 57 10 OPTION ...