LG 42PQ1100-ZE (CHASSIS:PD92A) Service Manual ▷ View online
• Exception
- USB power could be disabled by inrushing current
- In this case, remove the device and try to reboot the TV (AC power off/on)
Making
Revision
2009. 2 . 1
PDP TV
Input
Block
USB Problem
Check USB 2.0 Cable for damage
or open conductors
Check L701 voltage level 5V
Y
N
Replace L701
Check JK706
Replace JK706
Y
N
Replace Mstar IC100
Y
Check IC400
N
Replace IC400
Y
13/14
It should satisfy the
Pixel Clock
on CAS.
Making
Revision
2009. 2 . 1
PDP TV
Input
Block
No OSD Problem
Check P400 OR P403
#17(CKM) , #18(CKP) ,
#32(CKP) , #33(CKM)
Maybe Mstar has problems
Replace IC100
Check LVDS Cable damage
or open connectors
.
Check PDP Module
Control board
Refer to Module CAS
Replace Cable
Check Vs,Va, 5V,17V
on Powwer Board
Replace Power Board
Check P1100
Disp_EN,VaVs ON, 5V_MNT
Check GPIO Path of IC100
Y
Y
Y
Y
N
N
N
N
14/14
It should satisfy the
Pixel Clock
on CAS.
Making
Revision
2009. 2 . 1
PDP TV
Input
Block
No OSD Problem
Check P400 OR P403
#17(CKM) , #18(CKP) ,
#32(CKP) , #33(CKM)
Maybe Mstar has problems
Replace IC100
Check LVDS Cable damage
or open connectors
.
Check PDP Module
Control board
Refer to Module CAS
Replace Cable
Check Vs,Va, 5V,17V
on Powwer Board
Replace Power Board
Check P1100
Disp_EN,VaVs ON, 5V_MNT
Check GPIO Path of IC100
Y
Y
Y
Y
N
N
N
N
14/14
It should satisfy the
Pixel Clock
on CAS.
Making
Revision
2009. 2 . 1
PDP TV
Input
Block
No OSD Problem
Check P400 OR P403
#17(CKM) , #18(CKP) ,
#32(CKP) , #33(CKM)
Maybe Mstar has problems
Replace IC100
Check LVDS Cable damage
or open connectors
.
Check PDP Module
Control board
Refer to Module CAS
Replace Cable
Check Vs,Va, 5V,17V
on Powwer Board
Replace Power Board
Check P1100
Disp_EN,VaVs ON, 5V_MNT
Check GPIO Path of IC100
Y
Y
Y
Y
N
N
N
N
14/14