5. Trouble shooting

START

Check Vibrator Connector

Combination

Check the signal of OUT300,OUT301 (TP1,2)

176Hz 2Vp-p PWM?

Yes

Check the signal of

C303 (TP4)

Voltage is 3.0V?

Yes

Check the signal of

R304 (TP3)

Voltage is 2.6V?

Yes

Replace Vibrator

Assemble

No

Check the soldering

 

of U302,L300,L301

No

Check the soldering

of U300

Resoldering of

Replace U102

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LG Electronics KS360 service manual Check Vibrator Connector Combination