3-30
3-29
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.
CIRCUIT DIAGRAMS
1. SMPS CIRCUIT DIAGRAM
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.
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.
IMPORTANT SAFETY
NOTE :
Содержание LAS350B
Страница 9: ...2 2 ...
Страница 11: ...A900 2 SUBWOOFER SECTION ...
Страница 13: ...2 8 ...
Страница 27: ...3 14 WAVEFORMS OF MAJOR CHECK POINT 1 CRYSTAL FIG 1 1 X101 24 MHz 1 FIG 1 2 X400 X401 24 576 MHz 2 1 2 2 ...
Страница 28: ...3 15 2 FLASH MEMORY FIG 2 VCC CS CLK DO 3 4 5 6 VCC CS CLK DO 5 6 4 3 ...
Страница 30: ...3 17 4 USB FIG 4 1 USB_5V 11 FIG 4 2 USB D 12 FIG 4 3 USB D 13 11 EC405 100uF 16V C475 12 13 ...
Страница 32: ...3 19 6 OPTICAL FIG 6 1 OPT_IN 17 FIG 6 2 OPT_DET 18 17 18 ...
Страница 33: ...3 20 7 PORTABLE FIG 7 1 ADC IC 5 V 19 FIG 7 2 ADC IC 3 3 V 20 FIG 7 3 Analog Input Voltage X XUY G 21 21 20 19 ...
Страница 37: ...3 24 ...
Страница 47: ...3 44 3 43 2 MAIN P C BOARD DIAGRAM TOP VIEW BOTTOM VIEW ...
Страница 49: ...3 48 3 47 ...
