3-38
3-39
CIRCUIT DIAGRAMS
1. POWER CIRCUIT DIAGRAM
No Power
BD101,R101 are Defective
No Power
D102 is Defective
S/W Error
IC101,IC104 are Defective
No Power
F101 is Defective
33V No Power
Q161 is Defective
5.3VA No Power
D121 is Defective
3.7V No Power
D124 is Defective
5V No Power
IC132 is Defective
12V No Power
IC131 is Defective
14VA No Power
D127 is Defective
5.5VA No Power
D125 is Defective
Switching Error
IC102,IC103 are Defective
NOTES) Symbol denotes AC ground.
NOTES)
Symbol denotes DC chassis ground.
NOTE) Warning
NOTE)
Parts that are shaded are critical
NOTE)
With respect to risk of fire or
NOTE)
electricial shock.
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
IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIR-
CUMSTANCES SHOULD THE ORIGINAL DESIGN BE
MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE LG ELECTRONICS CORPORATION. ALL
COMPONENTS SHOULD BE REPLACED ONLY WITH
TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIR-
CUIT. SPECIAL COMPONENTS ARE SHADED ON THE
SCHEMATIC FOR EASY IDENTIFICATION.
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIF-
FER 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.
Summary of Contents for DR165
Page 57: ...3 64 3 65 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE ...
Page 58: ...3 66 3 67 2 MAIN P C BOARD BOTTOM SIDE ...
Page 59: ...3 68 3 69 3 I O P C BOARD TOP VIEW BOTTOM VIEW 4 JUNCTION P C BOARD TOP VIEW BOTTOM VIEW ...
Page 77: ...4 17 2 DISC SPECIFICATION 3 DISC MATERIALS 1 DVD ROM Single Layer Dual Layer ...
Page 102: ......
Page 103: ...4 42 4 43 CIRCUIT DIAGRAMS 1 DSP CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 104: ...4 44 4 45 2 RF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 105: ...4 46 4 47 3 DRIVE CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 107: ...4 50 4 51 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...