LG 55LM660S / 55LM660T (CHASSIS:LD22E) Service Manual ▷ View online
4. Changed BOM
As-Was
Current
Æ 추가
Add Item
1.Marlin (Yes/No)
2
2
.CNTV (Yes/No)
3.HDCP Tx (Yes/No)
4.DTCP Rx (Yes/No)
5.HDCP Rx (Yes/No)
4.DTCP Rx (Yes/No)
5.HDCP Rx (Yes/No)
주3) CNTV [Yes] : China Smart TV Only
4. Changed BOM
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
spot, external device color error
6
6
B. Power error
No power
7
7
Off when on, off while viewing, power auto
on/off
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
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.
Contents of LCD TV Standard Repair Process Detail Technical Manual
No.
Error symptom
Content
Page
Remarks
1
A. Video error_ No video/Normal audio
Check LCD back light with naked eye
A1
2
LED driver B+ 24V measuring method
A2
3
Check White Balance value
A3
4
Power Board voltage measuring method
A4
6
A. Video error_ No video/Video lag/stop
TUNER input signal strength checking method
A6
7
LCD-TV Version checking method
A7
9
A. Video error_Color error
LCD TV connection diagram
A8
10
Tuner Checking Part
A9
11
Check Link Cable (LVDS) reconnection condition
A10
A11
A10 : 32/37/42/47/55
A11 : 32 AUO
12
Adjustment Test pattern - ADJ Key
A12
13
A. Video error_Vertical/Horizontal bar,
residual image, light spot
residual image, light spot
LCD TV connection diagram
A8
14
Check Link Cable (LVDS) reconnection condition
A10
A11
A10 : 32/37/42/47/55
A11 : 32 AUO
15
Adjustment Test pattern - ADJ Key
A12
16
<Appendix>
Defected Type caused by T-Con/ Inverter/
Module
Module
Exchange T-Con Board (1)
A-1/5
17
Exchange T-Con Board (2)
A-2/5
18
Exchange LED driver Board (PSU)
A-3/5
55” : driver board
Other : PS
Other : PS
19
Exchange Module itself (1)
A-4/5
20
Exchange Module itself (2)
A-5/5
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