DOWNLOAD LG 442PT260E-DA / 2PT260E-DC (CHASSIS:PB11K) Service Manual ↓ Size: 10.06 MB | Pages: 70 in PDF or view online for FREE

Model
442PT260E-DA 2PT260E-DC (CHASSIS:PB11K)
Pages
70
Size
10.06 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
442pt260e-da-2pt260e-dc-chassis-pb11k.pdf
Date
PREV: LG 42PT560R-TD (CHASSIS:PP11S) Service Manual

LG 442PT260E-DA / 2PT260E-DC (CHASSIS:PB11K) Service Manual ▷ View online

Customer Oriented R&D
Breakthrough
DDR3
256MB(128*2)
DDR3
256MB(128*2)
S7
S7
WXGA/XGA
LVDS
(Front-end)
(External Input)
EXT_IN
HDMI_D
CVBS_LIVE
TP1
CVBS_LIVE
SIF1
Cab
le
ISDB-T/
PAL/NTSC
(System + Scalar)
IF
I2S_BCM
TAS9709
TAS9709
AV1
AV1_LR
COMP1_LR
COMP2_LR
RGB_LR EXT_IN
AV2
AV2_LR
NANDFlash
256MB
NANDFlash
256MB
(Audio Out)
USB2.0
SPDIF
SIF_LIVE
I2S_BCM
(Comp1/2, RGB)
HDMI_Rear(D port)
HDMI_Side (C port)
SIDE HDMI_PORT
UI_HW_PORT1
HDMI_C
Demodulator
MN884433
TP1
Serial_Flash
1MB
Serial_Flash
1MB
(USB)
Rear USB( SVC only PJ230)
Side USB
1. Power-Up Boot Fail Trouble Shooting
Reset
HDMI CEC (Stand-by)
IR
I2C
KIA7427AF
KIA7427AF
24C16
24C16
Local
Local
KEY
KEY
NEC
NEC
Micom
Micom
(Micom)
Rear(0)
Side(1)
Customer Oriented R&D
Breakthrough
1. Power-Up Boot Fail Trouble Shooting
Replace Power board
N
Y
Check Micom Redownload or 
replace
Check P500 All Voltage Level
(17V, 5V, 3.5/5V_ST)
Check Power connector
Y
Check Voltage Level 3.3V at IC504, 
R124(Micom)
N
If  Q501 Output is normal,
Replace of the IC504
& Recheck
Y
N
Check Voltage Level 1.26V at C534
N
Check R527 voltage level
(3.3V RL_ON) 
Replace one of IC501 & Recheck
N
Y
Check Voltage Level 1.5V
at IC502  #7 pin
N
Check R500 voltage level
(ON/OFF Control) 
Replace one of IC502 & Recheck
N
Y
Check Voltage Level 2.5V at C589
N
Replace one of IC505 and application 
circuit & Recheck
N
Y
Check X200 Clock24MHz
N
Replace X200
Y
Check signal transition
at IC103
N
Maybe Serial Flash Memory 
problem
Check signal transition
IC104
Y
Check All Voltage Level
at Bead, RL_ON, IC500 output
N
Replace one of Bead, IC500
& Recheck
Y
N
Maybe NAND Flash Memory or S7 
have troubles
Y
Check  DDR Memory 
/Replace one
Check S7 Main chip and Soc_Reset
Signal from micom GPIO
N
N
N
Customer Oriented R&D
Breakthrough
DDR3
256MB(128*2)
DDR3
256MB(128*2)
S7
S7
WXGA/XGA
LVDS
(Front-end)
(External Input)
EXT_IN
HDMI_D
CVBS_LIVE
TP1
CVBS_LIVE
SIF1
Cab
le
ISDB-T/
PAL/NTSC
(System + Scalar)
IF
I2S_BCM
TAS9709
TAS9709
AV1
AV1_LR
COMP1_LR
COMP2_LR
RGB_LR EXT_IN
AV2
AV2_LR
NANDFlash
256MB
NANDFlash
256MB
(Audio Out)
USB2.0
SPDIF
SIF_LIVE
I2S_BCM
(Comp1/2, RGB)
HDMI_Rear(D port)
HDMI_Side (C port)
SIDE HDMI_PORT
UI_HW_PORT1
HDMI_C
Demodulator
MN884433
TP1
Serial_Flash
1MB
Serial_Flash
1MB
(USB)
Rear USB( SVC only PJ230)
Side USB
Reset
HDMI CEC (Stand-by)
IR
I2C
KIA7427AF
KIA7427AF
24C16
24C16
Local
Local
KEY
KEY
NEC
NEC
Micom
Micom
(Micom)
Rear(0)
Side(1)
2. No OSD Trouble Shooting
Customer Oriented R&D
Breakthrough
2. No OSD Trouble Shooting
Replace Power board
N
Y
Check 5V Voltage Level
at P500
Check Power connector
Y
Check 5V Voltage Level at Q501
N
Replace one of Q501
& Recheck
Y
Check P903
(TXAC-), (TXAC+), (TXBC-), 
(TXBC+), Display Enable
N
Y
Check LVDS Cable
N
Replace Cable
Y
Check PDP Module
Check 5V Voltage Level
at L507, L501
N
Replace one of L507,501
& Recheck
Y
Maybe S7(IC101)
has troubles
It should satisfy the 
Pixel Clock
on CAS.
Electrical Specifications
Power Supply Sequence
Input Signal Timing Specification
Control Signal Register
Check CAS
Check P500
5V_ON
Check GPIO Path of  Micom
N
Y
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