LG 47LN613X / 47LN6138 / 47LN613V / 47LN613S (CHASSIS:LD33B) Service Manual ▷ View online
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Checking order
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.5V on the terminal 4.
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
key error
<ALL MODELS>
A27
Established
date
Revised
date
Error
symptom
Content
LCD TV
P4101
1
GND
2
KEY1
3
KEY2
4
+3.5V_ST
5
GND
6
LOGO/LED_R
7
IR
8
GND
①
②
③
④
2012. 12 .06
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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
2012. 12 .06
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
55 / 88
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
2012. 12 .06
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
55 / 88
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
2012. 12 .06
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only