DOWNLOAD LG 26LD320 / 26LD320C / 26LD320N / 26LD335 (CHASSIS:LD91A) Service Manual ↓ Size: 4.23 MB | Pages: 77 in PDF or view online for FREE

Model
26LD320 26LD320C 26LD320N 26LD335 (CHASSIS:LD91A)
Pages
77
Size
4.23 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
26ld320-26ld320c-26ld320n-26ld335-chassis-ld91a.pdf
Date
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LG 26LD320 / 26LD320C / 26LD320N / 26LD335 (CHASSIS:LD91A) Service Manual ▷ View online

Check Signal format
Is it supported?
Check the RGB Cable
YES
MAIN B’D P400 Check
Replace MAIN B’D P400
YES
NO
NO
YES
Check MAIN B’D C208 (Video)
R246 (HSYNC)
R245 (VSYNC)
Replace
MAIN B’D C208 or R246 or R247
NO
Replace MAIN B’D IC 100
YES
MAIN B’D P400 Pin #2
Video signal ?
R437 has Vsync ?
R440 has Hsync ?
Making 
Revision 
2009. 2 . 1
14/34
 LCD TV
Symptom
RGB No Video Problem
26~42LH2000
32~47LH3000/LH4000
Check Signal format
Is it supported?
Check the RGB Cable
YES
MAIN B’D P400 Check
Replace MAIN B’D P400
YES
NO
NO
YES
Check MAIN B’D C212 (RED)
C207 (GREEN)
C213 (BLUE)
Video Signal ?
Replace
MAIN B’D C212 or C207 or C213
NO
Replace MAIN B’D IC 100
YES
MAIN B’D P400
 Pin #3 (BLUE)
    Pin #2 (GREEN)
Pin #1 (RED)
Video signal ?
Making 
Revision 
2009. 2 . 1
15/34
 LCD TV
Symptom
RGB No Color Problem
26~42LH2000
32~47LH3000/LH4000
Check Signal format
Is it supported?
Check the HDMI Cable
YES
YES
Replace MAIN B’D IC 100
Check the ADJUST MENU
EDID OK ?
YES
Download EDID
(Refer to Adjustment Spec)
NO
NO
Replace
MAIN B’D IC107 (HDCP KEY)
Making 
Revision 
2009. 2 . 1
16/34
 LCD TV
Symptom
HDMI 1~3 All No Video Problem
HDMI1 – ALL MODELS
HDMI2 – Except for 19/22LH20**
HDMI3 – Except for 19/22LU40**, 19/22LU50**, 19/22LH20**
26~42LH2000
32~47LH3000/LH4000
Check Signal format
Is it supported?
Check the HDMI Cable
YES
YES
Replace MAIN B’D IC 100
MAIN B’D JACK Check
JK600 -> HDMI1
JK601 -> HDMI2
JK602 -> HDMI3
YES
_ This case is that HDMI Video doesn’t display at the some HDMI input, not all.
Making 
Revision 
2009. 2 . 1
17/34
 LCD TV
Symptom
HDMI1 or 2 or 3 No Video
Problem
HDMI1 – ALL MODELS
HDMI2 – Except for 19/22LH20**
HDMI3 – Except for 19/22LU40**, 19/22LU50**, 19/22LH20**
26~42LH2000
32~47LH3000/LH4000
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