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
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)
14. USB Trouble Shooting
Customer Oriented R&D
Breakthrough
14. USB Trouble Shooting
• 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)
Check USB 2.0 Cable
Y
Check P1102 (250/350 tool)
P1100 (230 tool)
N
Y
Y
Check USB device
If device is 2.5 inch HDD,
Check power adaptor
Replace Jack
Check 5V voltage level
IC1101 #2 (250/350 tool)
L1100 (230 tool)
N
Replace one of
IC1101,L1100 & Recheck
Y
MaybeMstar S7 (IC101)
has problems. Replace It.
Customer Oriented R&D
Breakthrough
14. USB Trouble Shooting
• 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)
Check USB 2.0 Cable
Y
Check P1102 (250/350 tool)
P1100 (230 tool)
N
Y
Y
Check USB device
If device is 2.5 inch HDD,
Check power adaptor
Replace Jack
Check 5V voltage level
IC1101 #2 (250/350 tool)
L1100 (230 tool)
N
Replace one of
IC1101,L1100 & Recheck
Y
MaybeMstar S7 (IC101)
has problems. Replace It.
Customer Oriented R&D
Breakthrough
14. USB Trouble Shooting
• 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)
Check USB 2.0 Cable
Y
Check P1102 (250/350 tool)
P1100 (230 tool)
N
Y
Y
Check USB device
If device is 2.5 inch HDD,
Check power adaptor
Replace Jack
Check 5V voltage level
IC1101 #2 (250/350 tool)
L1100 (230 tool)
N
Replace one of
IC1101,L1100 & Recheck
Y
MaybeMstar S7 (IC101)
has problems. Replace It.
