Samsung HW-C450, Service Manual

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Samsung Electronics 4-5
Troubleshooting
Replace AIC1
4
Check the AIC1 pin 1,7 of
Main PCB Signal.
Check the MAIN PCB IRIC1
pin 10, 12 Data.
Check P_CON1 pin 1(-27V),
pin 2(-21V), pin 3(-18V),
pin 4, 8(±25V), pin 10(-13V),
pin 13, 14(5V).
B
No
Yes
No
5
Check the MAIN PCB
SPK-JACK1, 2 pin 2 speaker
output signal.
Check Speaker Output.

Refer to wave pattern
image of Fig. 4-6.

Refer to wave pattern
image of Fig. 4-7.
MAIN PCB AIC1
No. 4, 8 +,- 5V check.
No
Change the MAIN PCB
No
Check the resistance
SPK-JACK 1, SPK-JACK2
CABLE
No
Check the resistance
SPK-JACK 1, SPK-JACK2
CABLE
Yes