DOWNLOAD LG 32LV5500-SD (CHASSIS:LJ12E) Service Manual ↓ Size: 15.56 MB | Pages: 108 in PDF or view online for FREE

Model
32LV5500-SD (CHASSIS:LJ12E)
Pages
108
Size
15.56 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lv5500-sd-chassis-lj12e.pdf
Date

LG 32LV5500-SD (CHASSIS:LJ12E) Service Manual ▷ View online

ⓒ LG Electronics. Inc.2009
Checking method
1. Press the MENU button on the remote controller
2. Select the AUDIO function of the Menu
3. Select TV Speaker from Off to On
Standard Repair Process Detail Technical Manual
Checking method in menu when there is no audio
C. Audio error_No audio/Normal video
<ALL MODELS>
A24
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
A24
2010. 12 .14
ⓒ LG Electronics. Inc.2009
Checking order when there is no audio
① Check the contact condition of or 24V connector of Main Board
② Measure the 24V input voltage supplied from Power Board
(If there is no input voltage, remove and check the connector)
③ Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the 
GND and output terminal, the speaker is normal. 
Standard Repair Process Detail Technical Manual
Voltage and speaker checking method 
when there is no audio
C. Audio error_No audio/Normal video
<ALL MODELS>
A25
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
A25
SMAW200-H24S (YEONHO)
Error-out
24
N.C 
• Lamp SCANNING 
Model
: PWM Dim #2
23
PWM Dim #1
22
12V
21
Lamp : A-Dim
LED : N.C
20
12V
19
Inverter On/off
18
12V
17
GND
16
GND
15
GND
14
GND
13
3.5V
12
3.5V
11
3.5V
10
3.5V
9
GND
8
GND
7
GND
6
GND
5
20V (24V)
4
20V (24V)
3
20V (24V)
2
Power on
1
24 Pin
(Power Board ↔ Main Board) -
공통
2010. 12 .14
ⓒ LG Electronics. Inc.2009
Checking order
1, 2.  Check IR cable condition between IR & Main board.
3.      Check the st-by 3.3V on the terminal 6.
4. When checking the Pre-Amp when the power is in ON condition, it is normal when the 
Analog Tester needle moves slowly, and defective when it does not move at all. 
Standard Repair Process Detail Technical Manual
Remote controller operation checking method
D. Function error_ No response in remote controller,
key error
<ALL MODELS>
A27
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
A27
3.3V_Normal
11
LED_R/BUZZ
12
GND
13
ST_SDA
15
ST_SCL
14
GND
10
IR
9
LED_B/logo_PWM
8
GND
7
St 3.5V
6
KEY2
5
KEY1
4
GND
3
SDA
2
SCL
1
P8200
2010. 12 .14
ⓒ LG Electronics. Inc.2009
Standard Repair Process Detail Technical Manual
Sequence of the Vcom adjustment
D. VCOM Adjustment
1. Case 
■ LCD module change
■ T-Con board change 
2. Equipment 
■ Service Remote controller
3. Adjust sequence
■ Press the ‘adj’ key  
■ select V-COM 
■ As pushing the right or the left button on the remote controller, And find the V-COM value Which is no or
minimized the Flicker.
(If there is no flicker at default value, Press the exit key and finish the VCOM adjustment.)
■ Push the OK key to store the value. Then the message “Saving OK” is pop.
■ Press the exit key to finish V-COM adjustment.
A28
Established 
date 
Revised 
date 
Error 
symptom
Content
LCD  TV
A28
2010. 12 .14
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