LG 60PV550B-SC (CHASSIS:PB11K) Service Manual ▷ View online
No OSD Trouble Shooting (Module Power Sequence)
msec
-
2000
Time interval between 10% of Vcc and 90% of Vcc
when Power On
T
OnR
msec
500
90
Falling Time of Vs (90% to 10%)
T
VsF
msec
-
3100
Time interval between 90% of Vs
and DISPEN rising edge when Power On
T
d_on
msec
6000
1500
Time interval between DISPEN falling edge
and 90% of Vs when Power Off
T
d_off
Recommended 2sec
msec
300
10
Rising Time of Va (10% to 90%)
T
VaR
msec
400
100
Rising Time of Vs (10% to 90%)
T
VsR
msec
500
50
Falling Time of Va (90% to 10%)
T
VaF
msec
-
20
Time interval between 10% of Vs and 90% of Vcc
when Power Off
T
Off
msec
1250
750
Time interval between 90% of Vcc and 10% of Vs
when Power On
T
On
unit
Max.
Min.
Description
Symbol
T
d_on
T
d_off
Normal Display
Vcc
(5V)
Va
Vs
DISPEN
T
VaR
T
VsR
T
On
T
VaF
T
VsF
T
Off
T
OnR
Module Control Trouble Shooting
“TILT” on Adjust Remocon
: PDP internal pattern displays?
PDP Module Power is OK?
N
PDP Module is OK.
Check SCL,SDA line
Check Signal
output
N
Y
SCL (continue)
SDA (continue)
ACK
By Slave
9
1
D0
D7
9
ACK
By Slave
Command Data
for Addr
Stop
By Master
D6
SCL
8
SDA
0
0
1
1
1
A7
W
Start
By
Master
Chip ID Address Byte
(0x1C)
ACK
By Slave
0
1
9
1
A6
A1
A0
Command Address
Addr=A[7:0]
0
Write
only
Master : Image Board
Slave : PDP Module
Slave : PDP Module
< Sample Signal >
SCL
SDA
ACK
signal Check
Low :
OK
High :
Error
Replace Control
Board
N
Check SMPS & cable
N
Y
Replace PDP Module
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)
3. Digital TV Video Trouble Shooting
3. Digital TV Video Trouble Shooting
Check RF Cable
Y
Check TP Clock, Data, Sync
R630, R631, R632
N
Maybe Demodulator has problems
Y
Maybe MstarS7(IC100)
has problems
Check Tuner(TU1300) Power
(5.0V, 3.3V, 1.2V)
N
Replace one of Bead
& Recheck
Y
Check IF Signal pin #17, 18
N
Maybe Tuner has problems
Y
Check Demodulator Power
(3.3V, 1.2V) L609, IC600
N
Replace L609 / IC600
Y
Check Demodulator X-TAL
(X602)
N
Replace X-TAL
Y
Click on the first or last page to see other 60PV550B-SC (CHASSIS:PB11K) service manuals if exist.