DOWNLOAD LG 55LW9800-TA (CHASSIS:LB12D) Service Manual ↓ Size: 16.59 MB | Pages: 104 in PDF or view online for FREE

Model
55LW9800-TA (CHASSIS:LB12D)
Pages
104
Size
16.59 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lw9800-ta-chassis-lb12d.pdf
Date
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LG 55LW9800-TA (CHASSIS:LB12D) Service Manual ▷ View online

5. Block Diagram (T-CON)
URSA5 
(Master) 
0xB4
URSA5 
(Slave) 
0xB8
LG5811 
(XTR) 
0x72
MAX17139
(PMIC) 
0x42
Micom ( 0x52)
URSA5_Master ( 0xB4 )
URSA5_Slave ( 0xB8)
MAX17139_PMIC ( 0X42)
LG5811_XTR_T_con ( 0x72)
BUF08630_P Gamma IC ( 0xE8)
BUF08630_P_Gamma IC ( 0xEA)
LED Driver1_for D/L ( 0x46 )
LED Driver2_for D/L ( 0x48)
Wireless dongle(0x20)
BUF08630
(P_GMA) 
0xE8
BUF08630
(P_GMA) 
0xEA
LED Driver
(Master) 
0x46
LED Driver
(Master) 
0x48
BCM I2C Ch2 I2C Load
BCM 
I2C
Ch2
3D T-con Board
LED Driver Board
(TBD)
6. Interconnection - 1
1
Main PCB
2
Formatter PCB
3
LED Driver
4
Soft Touch + IR
5
Motion Receiver (RF Module)
6
WiFi
1
2
3
4
5
6
Main to PSU
Main to Woofer
Main to Speaker
Main to Formatter
Main to WiFi
Main to IR+Soft Touch 
[PCBs]
[Cables]
47/55LW9800
PSU
7
8
Woofer
8
9
Power to LED Driver
Power to LED Driver 
Main to Motion Receiver (RF Module) 
10
Formatter to LCD Module
1
2
3
4
4
5
6
7
8
9
Speaker
9
9
1
2
3
4
5
6
7
8
9
10
11
7
LED Driver to LCD Module
11
11
6. Interconnection –1 sub PCB
47/55LW9800
Soft Touch 
IR Key PCB
RF MOTION ASSY
WIFI ASSY
To Main
1
SPK unit
WIFI ASSY
RF MOTION ASSY
Soft Touch + IR Key PCB
Contents of LCD TV Standard Repair Process
No.
Error symptom (High category)
Error symptom (Mid category)
Page
Remarks
1
A. Video error
No video/Normal audio 
1
2 
No video/No audio
2
3
Video error, video lag/stop, fail tunning
3, 4
4
Color error
5
5
Vertical/Horizontal bar, residual image, 
light spot, external device color error
6
6
B. Power error
No power
7
7
Off when on, off while viewing, power auto 
on/off
8
8
C. Audio error
No audio/Normal video  
9
9
Wrecked audio/discontinuation/noise
10
10
D. Function error
No response in remote controller, key error, 
recording error, memory error
11
11
External device recognition error 
12
12
E. Noise
Circuit noise, mechanical noise
13
13
F. Exterior error
Exterior defect
14
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
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