LG Electronics KS360 service manual TP4

5. Trouble shooting

START

Check Speaker tension and Contacts are clear.

Input Signal ( TP1,

TP2) is Low(0V)?

No

Check the soldering status Of U303 of main -board

Output Signal( TP3,

TP4) is Low(0V)?

No

Receiver Signal( TP5,

TP6) High(1.6V)?

Replace Main PCB

Assemble

TP4

Yes Replace Main Board TP3

		TP4
Yes	Replace U303 of	TP3
	main -board

Replace Receiver

TP5 TP6

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