LG 32LG6000 - Page 14

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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
NG : always RED
No problem
No problem
Check LED A’ssy color.
Check remote control
Power key off
Replace LED A’ssy.
Check P502,501 VDD voltage(pin1~4) 12V
if not OK -> Check Q501,L502,500, PANEL_VCC_EN signal
Check LVDS data signal(pin11~22, pin27~28)
If not OK -> Replace IC100(Replace Main B/D)
No problem
No problem
No problem
Check FRC B/D
1. P102 pin(9~13) EN signal
2. Pin1,2:6V, pin4:3.3V, pin6,7:12V, supply status
3. IIC check(R109,R111)
4. P103:pin1~4 VDD 12V, LVDS Data pin P104
LVDS Data pin
No problem
Lamp On status
Lamp On
status NG
Check inverter lamp
On/Of status.
Check Panel Error DET signal.
(P1000:pin17 or IC802:pin12)
Check LVDS Cable
1. Main B/D to FRC
2. FRC to T-CON
Replace the LVDS Cable.
NG
NG
Recheck PSU(+5V, +12V, +16V)
-> If not OK then replace PSU
Replace PSU
Check the PWM signal
(P1000, pin 22, 21)
Replace the Main B/D.
NG
Re App S/W download.
If not OK then replace IC100.
Replace the FRC B/D
No problem
Check LED A’ssy. Replace PSU B/D or Main B/D.
Is the inverter OK?
(INV_CTL
signal:P1000:pin20)
Re MICOM S/W download
-> If not OK then replace
IC802
No problem
No
problem
NG
NG
NG
2. Main Board
2-1. In case of No Raster