DOWNLOAD LG 19LU7000 (CHASSIS:LU7000) Service Manual ↓ Size: 4.28 MB | Pages: 49 in PDF or view online for FREE

Model
19LU7000 (CHASSIS:LU7000)
Pages
49
Size
4.28 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
19lu7000-chassis-lu7000.pdf
Date
PREV: LG 19LU5000 / 19LU5010 / 19LU5020 (CHASSIS:LD91A) Service Manual

LG 19LU7000 (CHASSIS:LU7000) Service Manual ▷ View online

              - 21 -                                                         
 
   
4.  In case of occur strange screen into specific mode 
 
1)  In case of does't display the OSD 
 
(1) Symptom 
1) LED 
is 
blue. 
2)  The minute discharge continuously becomes accomplished from module 
 
(2) Check follow 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Is normal the LVDS 
Cable ? 
Is normal the T-Con 
Board of Module? 
Yes 
No 
No 
No 
Yes 
Is the LVDS cable 
connected well?
Replace Power Board.
Replace T-Con Board 
or LCD Module. 
Cable inserts well. 
No 
Yes 
Operates the 
U112(FLI10610H)?
Replace Main Board.
Replace 
U112(FLI10610H)
Is  normal  the  main 
Board? 
Yes 
No 
              - 22 -                                                         
 
   
2)  In case of does't display the screen into specific mode 
 
(1) Symptom 
(1)  The screen does not become the display from specific input mode 
(RF, AV, Component, RGB, HDMI,DVD).
 
(2) Check follow 
(1)  Check the all input mode should become normality display.
 
 
(3)  In case of becomes unusual display from D/A mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(4)  In case of becomes unusual display from A/V mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(5)  In case of becomes unusual display from RGB mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Is normal the Tuner? 
(DVB-T&Analog) 
Is normal the 
U112(FLI10610H) 
Yes 
No 
No 
No 
Yes 
Is the Tuner cable 
connected well?
Is normal the Input voltage, 
IIC Communication and 
AV2 CVBS output? 
Cable inserts well. 
Yes 
Is normal the Input voltage, IIC 
Communication and HV sync?
 
Replace IC or Main 
Board. 
No 
Replace Tuner or Main 
Board. 
Block  A 
Is Video input of the AV 
Jack(JP743) normal? 
Same as Block A 
Yes 
No 
Check the input source. 
No 
Is R,G,B input and H,V sync 
of the JP521 normal? 
Same as Block A 
Yes 
Check the input source. 
              - 23 -                                                         
 
   
(6)  In case of becomes unusual display from HDMI1 mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(7)  In case of becomes unusual display from HDMI2 mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(8)  In case of becomes unusual display from SCART1 mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(9)  In case of becomes unusual display from SCART2 mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
No 
Is Hdmi input of HDMI 
Jack(JP621) normal? 
Same as Block A 
Yes 
Check the input source. 
No 
Is Video input of A/V Jack 
(JP661)normal? 
Same as Block A 
Yes 
Check the input source. 
No 
Is Video input of A/V Jack 
(JP662)normal? 
Same as Block A 
Yes 
Check the input source. 
 
Is Hdmi input of HDMI 
Jack(JP622) normal? 
No 
Check the input source. 
Yes 
Same as Block A 
              - 24 -                                                         
 
   
 
(10) In case of becomes unusual display from Component mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(11) In case of becomes unusual display from DVD mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Is Y,Pb,Pr input of the 
JP743 normal? 
Check the input source. 
No 
Yes 
Same as Block A 
Is Y,Pb,Pr input of the 
JP982 normal? 
No 
Check the DVD Player 
Same as Block A 
Yes 
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