Table of Contents
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• CD PART
Start
Yes
Power on?
Yes
Does initial
read work?
Yes
Does it play?
Yes
Is audio output
supplied?
Yes
OK
LGE Internal Use Only
Check power supply circuitr y
IC4 1,4pin 7.2V
No
IC4 2pin 3.3V
IC1 12,16,25,50,64,73,98pin 3.3V
IC1 19,29,37,63,66pin 1.6V
No
Check disc circuitry
Yes
Check laser circuitry
Yes
Check Focus circuitry
Yes
Check tracking servo circuitry
No
No
- 3-4 -
Check connector
No
CON1, CON2, CON3
Tracking servo check
PN702 1, 4pin check
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Only for training and service purposes
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