IMPORTANT SAFETY NOTICECUIT. SPECIALCOMPONENTS ARE SHADED ON THENOTE :
CIRCUIT DIAGRAMSSCHEMATIC FOR EASY IDENTIFICATION.1. Shaded( ) parts are critical for safety. Replace only
WHEN SERVICING THIS CHASSIS, UNDER NO CIR-THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIF-with specified part number.
CUMSTANCES SHOULD THE ORIGINAL DESIGN BEFER FROM THE ACTUAL CIRCUIT USED. THIS WAY,2. Voltages are DC-measured with a digital voltmeter
1. POWER CIRCUIT DIAGRAMMODIFIED OR ALTERED WITHOUT PERMISSIONIMPLEMENTATION OF THE LATEST SAFETY ANDduring Play mode.
FROM THE LG ELECTRONICS CORPORATION. ALLPERFORMANCE IMPROVEMENT CHANGES INTO
COMPONENTS SHOULD BE REPLACED ONLY WITHTHE SETIS NOTDELAYED UNTILTHE NEW SERVICE
TYPES IDENTICALTO THOSE IN THE ORIGINAL CIR-LITERATURE IS PRINTED.
Power dead12V Power dead
BD101, R101 are defectiveD127, IC152, IC157 are defective
12V Power dead
D123, IC153, IC156 are defective
3.3V or 2.5V Power dead
D124, Q162, IC154 are defective
Switching dead
IC101 is defective
33V Power dead
D126, ZD126, Q161 are defective
Power dead
F101 is defective
NOTES : Symbol denotes AC ground.
Symbol denotes DC chassis ground.
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3-143-15 |
ACEC
