Samsung TXJ1366 Service Manual - Page 19

No Sound

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Troubleshooting 5-2 No Sound Normal Abnormal Check Waveform of IC601 Pin 1. Normal Check Waveform of IC201 Abnormal Pin 52. Check Waveform of IC201 Normal Pin 1. Abnormal Volume O.K Up. NG Check/Replace IC201. Check SIF (L201). No Sound Check Connector CN601 and CN701. Abnormal Normal Check CN601 and CN701 Connector Soldering and A/V PCB. Check Waveform of IC601 and Normal Ok IC602 Pins 4. Abnormal Check Voltage of IC601 and IC602 Normal (approx. 12V) Pin 5. Abnormal Check Power 12V Line Voltage. Replace IC601 and IC602. 5-2 Samsung Electronics

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5-2 No Sound
Troubleshooting
5-2
Samsung Electronics
Abnormal
Abnormal
Normal
Normal
Normal
Abnormal
Abnormal
Abnormal
Normal
Normal (approx. 12V)
No Sound
Check
Connector CN601
and CN701.
Check
Waveform of
IC601 Pin 1.
Check
Waveform of IC201
Pin 52.
Check
Waveform of IC201
Pin 1.
Volume
Up.
Check
SIF (L201).
Check/Replace
IC201.
Abnormal
Check
Waveform of IC601 and
IC602 Pins 4.
Check CN601 and CN701
Connector
Soldering and A/V PCB.
Check
Voltage of IC601 and IC602
Pin 5.
Check Power
12V Line Voltage.
Replace IC601
and IC602.
O.K
NG
Ok
Normal