DOWNLOAD LG 37LG6000 (CHASSIS:LD89D) Service Manual ↓ Size: 5.11 MB | Pages: 29 in PDF or view online for FREE

Model
37LG6000 (CHASSIS:LD89D)
Pages
29
Size
5.11 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
37lg6000-chassis-ld89d.pdf
Date
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LG 37LG6000 (CHASSIS:LD89D) Service Manual ▷ View online

- 17 -
C
2008
1-1. The whole flowchart which it follows in voltage output state
1. Power Board
No
No
No
Start check
Does not screen
whole comes out? 
Does not low
 voltage output comes out?  
Does not Inverter
signal output  comes out? 
No
No
No
Yes
Yes
No
Yes
Is the Interface 
signal operated?
2. Check the 
Interface signal condition
Yes
Yes
Does not the 
INV 24V voltage output comes out?
Yes
Yes
Is it identical with
power off condition?
1. Check the Power off condition
Yes
Does not the 
St-by 5V(P-5V) signal  comes out?
Yes
Does not the 
VSC signal INV_CTL  comes out?  
Yes
Manufacture enterprise 
meaning of a passage
No
6. Check the 
VSC low Voltage output
Yes
Does not the 
AC Detect signal comes out?
Does not the
RL_ON/PWR_ON/OFF comes out?
Does not the VSC
 
Low Voltage output comes out?
3. Check the 
St_by 5V signal circuit
4. Check the 
AC Detect signal circuit
5. Check the VSC RL_ON?
PWR_ON/OFF signal
7. Check the VSC INV_CTL signal
8. Check the 
INV 24V voltage output circuit 
TROUBLE SHOOTING
C
2008
- 18 -
A power cord is plugged in with TV set?
Plug the power cord in.
No
Is AC-INLET connected with the power board?
Yes
Connect the  AC-INLET.
No
Are the fuses(F100, F101 or F700) OK on the power board?
Yes
Replace the fuses.
No
Symptom
1) It does not charge at module.
2) Front LED does not work
Check the followings
Is the power board connected with VSC Board though a cable?
Connect a cable.
No
Yes
Yes
2. No Power
Measure output voltages(16V,12V,5V) on the power board.
If the measured values are not a proper value,
 replace power board.
C
2008
- 19 -
Symptom
1) No OSD and image occur on the screen.
2) It maintains the condition with the front LED is white.
Check the followings
Does Module control signal OK?
No
Yes
Is the Inverter 
OK?
Is Low/High voltage outputs properly
except stand-by 5V?
No
Replace the 
Power board.
No
Check the LCD
Module
Yes
Is the LVDS 
cable OK?
Reconnect 
the LVDS cable in P501 or P502.
No
Yes
Is the IC100 (FLI106X0H)
Output normal?
Replace the VSC
No
3. No Raster
C
2008
- 20 -
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