3-59
3-60
CIRCUIT DIAGRAMS
1. SMPS CIRCUIT DIAGRAM
IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO
CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE
MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE LG CORPORATION. ALL COMPONENTS
SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL
TO THOSE IN THE ORIGINAL CIRCUIT. 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 IMPROVEMENT CHANGES INTO
THE SET IS NOT DELAYED UNTIL THE NEW SERVICE
LITERATURE IS PRINTED.
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.
A
1
2
3
4
5
6
7
8
9
10
11
12
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
CAUTION:
Danger if fuse is incorrectly replaced.
Replace only with the type identical to fuse rating
and(or) model name described in main label.
Warning
Parts that are shaded are critical with
respect to risk of fire or electrical shock.
SMPS
EAX64583501_Rev1.1-SD
2012. 01. 09
Summary of Contents for CM9520
Page 27: ...A60L A60R 4 SPEAKER SECTION 4 1 FRONT SPEAKER CMS9520F ...
Page 28: ...A80L A80R 4 2 REAR SPEAKER CMS9520S ...
Page 29: ...A90 4 3 PASSIVE SUBWOOFER CMS9520W ...
Page 81: ...3 52 9 VFD GRID CURRENT DRIVER Figure 9 joXayZY O wZW P joYaxZWXG l ...
Page 100: ...3 89 3 90 PRINTED CIRCUIT BOARD DIAGRAMS 1 SMPS P C BOARD TOP VIEW ...
Page 102: ...3 93 3 94 2 MAIN P C BOARD TOP VIEW ...
Page 103: ...3 95 3 96 MAIN P C BOARD BOTTOM VIEW ...
Page 104: ...3 97 3 98 3 FRONT_VFD P C BOARD TOP VIEW BOTTOM VIEW ...
Page 106: ...3 101 3 102 6 FRONT_VOLUME P C BOARD TOP VIEW ...
Page 107: ...3 103 3 104 FRONT_VOLUME P C BOARD BOTTOM VIEW ...
Page 108: ...3 105 3 106 7 IPOD P C BOARD TOP VIEW BOTTOM VIEW ...
Page 109: ...MEMO MEMO 3 107 3 108 ...