LG EBY61089401 Schematic

CIRCUIT DIAGRAMS

1. SMPS CIRCUIT DIAGRAM

12

11

10

9

No Power

BD901 is Defective

No Power

D904 is Defective

FLD No Power

D927 is Defective

IMPORTANT SAFETY NOTICE

WHEN SERVICING THIS CHASSIS, UNDER NO
CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN
BE MODIFIED OR ALTERED WITH OUT PERMISSION
FROM THE LG CORPORATION. ALL COMPONENTS
SHOULD BE REPLACED ONLY WITH TYPES
IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT.

Vkk No Power

D926 is Defective

6VA No Power

D924 is Defective

3.8VA No Power

D922, D923 are Defective

SPECIAL COMPONENTS ARE SHADED ON THE
SCHEMATIC FOR EASY IDENTIFICATION.
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY
DIFFER FROM THE ACTUAL CIRCUIT USED. THIS
WAY, IMPLEMENTATION OF THE LATEST SAFETY
AND PERFORMANCE IMPROVE MENT CHANGES
INTO THE SET IS NOT DELAYED UNTIL THE NEW
SERVICE LITERATURE IS PRINTED.

14VA No Power

D925 is Defective

NOTE :

1. Shaded( ) parts are critical for safety. Replace only
with specified part number.

2. Voltages are DC-measured with a digital voltmeter
during Play mode.

8

7

6

5

4

3

No Power

F901 is Defective

S/W Error

IC901, IC902 are Defective

Switching Error

PC901, IC903 are Defective

Switching Error

PC903, IC904 are Defective

No AMP Power

Q910, PC902,Q914 are Defective

AMP output No Power

D908 is Defective

12V No Power

IC951 is Defective

2

Warning

1

A

Parts that are shaded are critical with
respect to risk of fire or electrical shock.

EBY61089401, REV7.3

B C D E F G H I J K L M N O P Q R ST

SMPS

2011.02.24

2-1262-125