LG 42PC5D-AB (CHASSIS:PB73B) Service Manual ▷ View online
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ATI
X260
ATI
X260
SIF
NTP3000
NTP3000
I2S
SPDIF
I2S
CVBS(NT Main)
DDR2
64MBx2
DDR2
64MBx2
Flex Bus
RGB 30bit
TPA
Analog
Front
End
USB 1.1
I2C Port0
I2C CH1 I2C CH2 I2C CH3
MTV415
Micom
MTV415
Micom
USB (upgrade ready!!)
Dead IC when Standby
Dead IC when Standby
Video
Scaler
0
Video
Scaler
1 or 2
Alive IC when Standby
Alive IC when Standby
Audio
Video
TP
AV2 / L/R
MNT Out L/R
COMP1 L/R
COMP2 L/R
RGB L/R
TP_IN1
AV1
AV2
AV1, Y/C1
AV2, Y/C2
Flash
(NOR 32MB)
Flash
(NOR 32MB)
Latch
x
2
Latch
x
2
24C512
24C512
1. Video
(1)NO OSD <FHD>
TROUBLE SHOOTING GUIDE
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Check L729
Check
Power connector
Replace Power board
Check THC63LVD1023 (IC601)
#9(DE), #15(Clk), #7(Hsync),
#8(Vsync)
Check X260 (IC101)
Check P600 #47(DISP_EN),
#33(TXAC-) , #32(TXAC+) ,
#17(TXBC-) , #16(TXBC+)
Check THC63LVD1023 (IC601)
Check LVDS Cable
Check PDP/LCD Module
Control board
1
2
3
4
5
1 : _Check the L729 HIGH.
_Check Power connector.
Y
NY
Y
YY
Y
N
N
2 : _Check the THC63LVD1023 (IC601)
input signal
#(
Clk
) :
74.25MHz
3 : _Check the P600 input signal
#47(DISP_EN) :
#33 (TXAC-) :
74.25MHz
3.3V
GND
#32 (TXAC+) :
4 : _Check the LVDS Cable
5 : _Check the PDP Module control board
#17 (TXBC-) :
#16 (TXBC+) :
74.25MHz
74.25MHz
74.25MHz
1. Video
(2)NO OSD <FHD>
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EXT
1/2
X260
TP A
Comp1/2
RGB
CVBS
TP C
TP B / 656
AT/NT/
TUNER
TP
MST
3361
HS,VS
DVI
HS,VS
YCbCr2
YCbCr
or RGB
FRC9445H
RGB
CVBS
YCbCr1
DVO
Y/C1, Y/C2
Y/C1, Y/C2
AV1/2
AV1/2
HDMI
1/2/3
TMDS341A
1. Video
(3)Video Path
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Check Antenna Cable
Check Tuner
5V, Video out
Check X260 inputs
M_TU_CVBS(C2117)
Check CVBS Video Path
1 : _Check Tuners
Vcc
and Video out
1. Video
(4)RF Mode
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