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CJS45F
LG CJS45F Service Manual
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3-31
3-32
BLOCK DIAGRAMS
1. SYSTEM BLOCK DIAGRAM
ڤ
ڤ
ڞ
ڐڋ
ڌٻ
ڨڼ
ۄۉ
ٻڟڮ
ګٻ
ٻ
ٻ
ٻ
ڃچڎډڎڱںڞڟڇٻڱڞڞڌډڍڄٻ
ڟڠ
ڞڦ
ٻٻٻ
ڨڠ
ڞڣ
ڜکڤ
ڮڨٻ
ڨٻ
ګڊ
ڰګ
ٻ
ڃڱڞڞڐڋڄٻ
ٻ
ٻ
گڪ
ګٻ
ڝڧ
ڪڞ
ڦٻ
ڱۊ
ۇې
ۈۀڊ
ٻ
ڦۀ
۔ٻ
ڃچڎډڎڱڜڇڐڱڄٻ
ڤڞ
ڐڋ
ڏٻ
ڌڑ
ڨڝ
ٻڮڟ
ڭڜڨ
ٻٻ
ڤڞ
ڐڋ
ڌٻ
ڏڨ
ڝٻ
ڡۇڼ
ێۃٻ
ڤڞ
ڏڋ
ڋٻ
ڨۊ
ۏۊ
ۍٻڟ
ۍۄۑ
ۀۍ
ٻ
ڰڮ
ڝڌ
ٻ
ڰڮ
ڝڍ
ٻ
ڤڞ
ڏڋ
ڌٻ
ڭڡ
ٻڤ
ڞٻ
ڤڞ
ڍڋ
ڌٻ
ڜڟ
ڞٻ
ڟڭڨںڲڠکڊڞڜڮڊٻ
ڭڜڮڊڮڠڧڊڞڧڦڊڞڦڠٻ
ٻڮ
ۋۀ
ڼۆۀ
ۍٻ
ڧۄ
ۂۃ
ۏۄۉ
ۂٻ
ڜڟڞںڟڜگڜٻ
ڨڞڮںڝڞڦڊڧڭڞڦڊڨڞڧڦٻ
ڡڭڪکگڃڝگڧڄٻ
ڨڋڋںڌڐٻ
ڜڋڋںڌڑٻ
ڮڡںڟڤڊڟڪٻ
ڮڡںڞڮڊڮڞڦٻ
ڱڡڟںڮگڝڊڞڧڦڊڟڪڊڭڮگڇٻ
ڨڜڤکٻڱڪڧںڜڊڝڇٻ
ڦڠڴٻڌڊڍٻ
ڪګںڮڲڇڞڧںڮڲڇڰګںڮڲڇڟکںڮڲڇڟںڮڠکڮڠٻ
ڨڪگںڨڰگڠڇڞڧڪڮڠڇڪګڠکٻ
ڜڇڝڇڞڇڟڇڠڇڡڇګڟٻٻٻ
ڧڟٻ
ڮګڟڪڊڮڧڟڪٻ
ڊڡڪڟڊگڭڟٻ
ڧڪڜڟڇڮڧڠڟڇٻ
ڮګڤکڇگڭڇڡٻ
ڟڍڮچڊڈٻ
ګڲڨںڧڭڞڦڊڝڞڦڊڟڜگڜٻ
ڞڟںڭڲڊڨڞڧڦڊڧڭڞڦڊڝڞڦڇٻ
ڞڟںڟڜگٻ
ڞڟںڭڮگٻ
ڡۊۍٻڜڰڳٻ
ڌډ
ڌٻ
ڍډ
ڋٻ
ڮڲڃګڝگڧڄٻ
[CJ65 : Total 2hch 900W
]
[[CJ45: Total 2.1c
h
720W
240+240+2
40]
[CJ44 : Total 2ch 460W]
ڤڞ
ڐڋ
ڎٻ
ڌڨ
ڝٻ
ڡۇڼ
ێۃٻ
ڮڡںڟڤڊڟڪٻ
ڮڡڍںڞڮڊڮڞڦٻ
ڜڰ
ڳٻ
ڤکٻ
گڰ
کڠ
ڭٻ
ڃڡ
ڨڊ
ڜڨڄ
ٻ
ګگ
ڝٻ
ڨڤ
ڞٻ
ٻ
ڧګ
ڡٻ
ڤڞ
ڒڋڍ
ٻ
ڜڨ
ګٻ
ڤڞ
ڒڋڋ
ٻ
ګڲ
ڨٻ
ڡڭڪکگڃڝگڧڄٻ
ڟڌچڊڈٻ
ڡڨڊ
ڜڨٻ
ڤڞ
ڍڋ
ڋٻ
ڨڤ
ڞٻ
ڜڟڞ
ٻ
PWM + A
MP
Bloc
k
MD
Block
ڱڡ
ڟٻ
AN
AL
O
G
I
N
P
U
T
B
l
o
c
k
FRONT Block
ڤڞ
ڒڋڌ
ٻ
ڜڨ
ګٻ
ڤڭ
ٻٻ
ڭۀ
ھۀ
ۄۑۀ
ۍٻ
ڞڥ
ڑڐ
ٻ
ڪۋ
ۏۄ
ۊۉٻ
jomi
58
60
Table of Contents
Section 1 Summary
3
Table of Contents
3
Servicing Precautions
4
Esd Precautions
6
Hidden Key Mode
7
Hidden Key Mode Table
7
Hidden Key Mode Description
8
Service Information for Eeprom
10
Program Download Guide
11
Fota Update Step Using Bt App
13
Specifications
15
Section 2 Cabinet & Main Chassis
16
Cabinet and Main Frame Section
18
Exploded Views
18
Packing Accessory Section
20
Speaker Section
21
Bracket
23
Case Top
23
Disassembly Instructions
23
Panel Rear
24
MAIN Board & SMPS Board
25
Main PCB & SMPS PCB
26
Panel PCB & Multi Knob
27
Bracket SMPS
28
Section 3 Electrical
30
One Point Repair Guide
31
Power
31
Booting When Power on the Set
33
Vfd Is Not Displayed When Power on the Set
34
Operation of MD
36
Sound
41
Electrical Troubleshooting Guide
46
Power (Smps)
46
Ic503(Gd25Q80) Check
49
Mcs Part Check
49
Fld Display Check
50
Pwm Modulation Check
51
Power Amp Part Check
52
Tuner / aux Function Check
53
Tuner Function Check
53
CD Function
54
Double Usb Function
55
Waveforms of Major Check Point
56
Wiring Diagram
58
Block Diagrams
59
System Block Diagram
59
Smps Block Diagram
60
Power Block Diagram
61
Circuit Voltage Chart
62
Input Voltage of Connectors
62
INPUT VOLTAGE of Ics
62
Voltage of Capacitors
62
Printed Circuit Board Diagrams
63
Smps P.C.board
63
Main P.C.board
64
Front P.C.board
65
MIC P.C.board Diagram
66
Other manuals for LG CJS45F
Owner's Manual
42 pages
Service Bulletin
26 pages
Simple Manual
8 pages
4
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LG CJS45F Specifications
General
Brand
LG
Model
CJS45F
Category
Stereo System
Language
English
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