DOWNLOAD LG 55LM8600 / 55LM8650 (CHASSIS:LA23E) Service Manual ↓ Size: 12.64 MB | Pages: 111 in PDF or view online for FREE

Model
55LM8600 55LM8650 (CHASSIS:LA23E)
Pages
111
Size
12.64 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lm8600-55lm8650-chassis-la23e.pdf
Date
PREV: LG 55LM8600 / 55LM860Y (CHASSIS:LB23E) Service Manual

LG 55LM8600 / 55LM8650 (CHASSIS:LA23E) Service Manual ▷ View online

Standard Repair Process Detail Technical Manual
LED driver  B+ 24V measuring method
A. Video error_No video/Normal audio 
A2
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
A2
Check the DC 24V and Inverter on
ALEF LED 
2011. 12 .14
14 Pin 
(Power Board ↔ Driver)  
PSU
1 ~ 5
24V
6 ~ 10
GND
11
Detect
12
Inverter On/Off
13
Int. PWM
14
Ext. PWM (PDIM)
Entry method
1. Press the ADJ button on the remote controller for adjustment.
2. Enter into White Balance of item 6. 
3. After recording the R, G, B (GAIN, Cut) value of Color Temp 
(Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD.
Standard Repair Process Detail Technical Manual
Check White Balance value
A. Video error_No video/Normal audio 
<ALL MODELS>
A3
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
A3
Entry method
1. Press the ADJ button on the remote controller for adjustment.
2. Enter into White Balance of item 10. 
3. After recording the R, G, B (GAIN, Cut) value of Color Temp 
(Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD.
2011. 12 .14
Standard Repair Process Detail Technical Manual
Power Board voltage measuring method
A. Video error_No video/ Audio
A4
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
A4
Check the DC 24V, 12V, 3.5V.
ALEF LED 
2011. 12 .14
24 Pin
(Power Board ↔ Main Board) -
공통
SMAW200-H24S (YEONHO)
1
Power on
2
20V (24V)
3
20V (24V)
4
20V (24V)
5
GND
6
GND
7
GND
8
GND
9
3.5V
10
3.5V
11
3.5V
12
3.5V
13
GND
14
GND
15
GND
16
N.C
(Only LPB : V-sync)
17
12V
18
Inverter On/off
19
12V
20
N.C
(LPB, Lamp : A-dim)
21
12V
22
PWM Dim #1
23
N.C 
(only Lamp SCANNING Model
: PWM Dim #2)
24
Error-out
Settings 
Æ Set up 
Æ
Manual Tuning
Æ select channel 
When the signal is strong, use the 
attenuator (-10dB, -15dB, -20dB etc.)
Standard Repair Process Detail Technical Manual
TUNER input signal strength checking method
A. Video error_Video error, video lag/stop 
<ALL MODELS>
A6
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
A6
2011. 12 .14
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