LG 42SL9000-ZA / 42SL9500-ZB (CHASSIS:LD91L) Service Manual ▷ View online
- 29 -
Check Bluetooth B’D
P701 Pin #1 5V ?
NO
Check that the Bluetooth Device is supported by Spec
(Refer to User Manual’s Bluetooth cautions)
Check MAIN B’D
R748 5V ?
Check MAIN B’D P701
YES
YES
Replace Bluetooth B’D
Is possible Bluetooth "on"
on the Menu OSD
NO
YES
NO
Replace MAIN B’D IC100
Check Bluetooth Cable
If Devices should
be supported
be supported
Replace MAIN B’D IC100
YES
NO
Check MAIN B’D
L821 5V ?
Replace MAIN B’D Q702
YES
28. Bluetooth “Connection on” Problem
Check IR B’D P200 Wafer
& Connector
Check MAIN B’D P1401
Wafer & Connector
YES
YES
Replace IR B’D
IR B’D IC200 Pin #1, 3
Voltage 4V - ?
YES
NO
Replace it
NO
Replace IR B’D IC200
NO
Replace MAIN B’D IC100
29. Remote control Problem
Check IR B’D P200 Wafer
& Connector
Check MAIN B’D P1401
Wafer & Connector
YES
YES
Check IR B’D IC201
Pin #6 5V ?
NO
Replace it
YES
Replace IR B’D IC201
30. Intelligent Sensor Problem
Check Breathing B’D J1 Waf er
& Connect or
Check MAIN B’D P1402
Wafer & C onne ct or
YES
YES
Check Breathing B’D J1
Pin #6 5 V ?
NO
Replace it
YES
Replace Breathing B’D
31. Breathing LED Problem
- 30 -
BLOCK DIAGRAM
1. T-project
74L
Mod
ule
I2C
Chip Tuner
B
U
F
_
TS_CLK/ERR/SYN/DATA[0]
LVC541A
Buffer
CI Sl o
FE_TS_DATA[0:7]
CI
MDI[0
]
CI_TS_DATA
[0:7]
CI_Dat
a[0:7]
P
C
M
_
D[0:7]
P
C
M
_
A[8:14]
Serial Flash
For
B
oot
FR
C
LGE7329
(XC5000)
Demod
ulator
(DRC3931)
LVDS
SPI_CK/CS/D0/D1
ot
FE
VMAI
N
CI
_
MDI
[0
:7
]
DDR2 SDRAM
(1GB)
HYNIX
SDDR_D[0:15]
TDDR_D[0:15]
SDDR_A[0:12]
TDDR_A[0:12]
74LCX244
Buffer
P
C
M
_
A[0:7]
CI_ADDR[0:7]
DDR2 SDRAM
(512M
B
)
HYNIX
Mstar
F-
S
C
A
R
T
SC1_CVBS_IN
SC2
C
VBS
IN
_
H-
S
C
A
R
T
SC1_R/G/B
FE
_
VOUT
DT
V/MNT
_
VOUT
NAND Flash
HYNIX
(64M
B
)
P
C
M
_
A[0:7]
EEP
ROM
AT24C512
I2C
Saturn 6
MSD3368
COM
P
O
N
ENT
AV
3
AV_CVBS_IN
COMP_Y/Pb/
Pr
__
Side AV
Dig
ital amp
(NTP
3100L)
I2S
L/
R
RG
B
DSUB_ R/G/B
DSUB_H/VS
Y
N
C
AUDIO IN
(PC)
USB
MP6211DH
USB Power
USB Power
USB
1_DM
/D
P
AUDIO Out
(Head
Phone
)
Audio
AUDIO
Out
(B/T
Headset)
M
A
X3232CDR
DGB_TX/RX
HDMI
1/2/
3
T
M
D
S
3
51P
A
G
R
TM
DS[0:7]
HDMI
CEC
USB
0_DM
/D
P
HDMI 4
Side
RS-
232C
TM
DS[0:7]
HP
D, 5V
_HDMI
Switc
h
SPD
IF
SPDIF_OUT
1/2/
3
Re
ar
:
3
A
_
HPD
5V
_HDMI
- 31 -
MSD3368 SA
TURN
6
+1.8V_DDR
+1.8V_DDR
(IC100)
1Gbit DDR2(IC300)
M8
M3
M7
N2
G8
G2
H7
H3
512Mbit DDR2(IC301)
N8
N3
N7
P2
P8
P3
2
H1
H9
F1
F9
C8
C2
D
R2
D1
D9
B1
B9
M
P7
R2
D7
D3
D1
D9
B1
B9
A
_
DDR2_DQ11
A
_
DDR2_DQ12
A
_
DDR2_DQ13
A
A_DDR2_DQ15
_
DDR2_DQ14
B_DDR2_DQ11
B_DDR2_DQ12
B_DDR2_DQ13
B_DDR2_DQ14
B_DDR2_DQ15
512Mbit
NAND Flash(IC102)
32Mbit Serial Flash
(IC103
) -
F
or boot
+3.3V
+3.3V
PCM_A
F/RB, PF_OE,
PF_CE0,
I/O0 ~ I/O7
R/B, RE,
CE
C
PCM
_
A
[0] ~
A
[7]
F-RBZ, PF_OE,
PF
CE0,PF
CE1,
SPI_DI
SPI_D0
SPI_CK
SPI_DI
SPI_DO
SPI_CK
D
I
D
O
CK
PF_CE1,PF_ALE,PF_WE,
PF_ WP
C
LE.
ALE,WE,
WP
__
PF_A
LE, PF_WE,
PF_A
D15E
SPI_CS
SPI_CS
CS
A
_
DDR2_A0
A
_
DDR2_A
1
A
_
DDR2_A2
A
_
DDR2_A3
B_DDR2_A0
B_DDR2_A1
B_DDR2_A2
B_DDR2_A3
B_DDR2_A4
A_DDR2_A4
A
_
DDR2_A5
A
_
DDR2_A6
A
_
DDR2_A7
A
_
DDR2_A8
A
_
DDR2_A
A
_
DDR2_A10
9
B_DDR2_A5
B_DDR2_A6
B_DDR2_A7
B_DDR2_A8
B_DDR2_A9
B_DDR2_A10
A
_
DDR2_A
11
A
_
DDR2_A
12
B_DDR2_A11
B_DDR2_A12
A
_
DDR2_DQ0
A
_
DDR2_DQ1
AD
D
R
2
DQ2
B_DDR2_DQ0
B_DDR2_DQ1
B
DDR2
_
A
_
DDR2_DQ3
A
_
DDR2_DQ4
A
_
DDR2_DQ5
A
_
DDR2_DQ6
A
_
DDR2_DQ7
A
_
DDR2_DQ8
B
_
DDR2_DQ2
B_DDR2_DQ3
B_DDR2_DQ4
B_DDR2_DQ5
B_DDR2_DQ6
B_DDR2_DQ7
B_DDR2_DQ8
A
_
DDR2_DQ9
A
_
DDR2_DQ10
B_DDR2_DQ9
B_DDR2_DQ10
M8
M3
M7
N2
N8
G8
G2
H7
H3
H1
N3
N7
P2
P8
P3
M2
H9
F1
F9
C8
C2
D7
P7
D3
2. Memory
- 32 -
TMDS351PAGR(TI)(IC603)
BU16027KV(ROHM)
SATURN 6
-MSD3368 (IC100)
HDMI CLK+/-
RX0+/RX0-
RX1+/RX1-
RX2+/RX2-
HDMI_SCL/SDA
HDMI_CEC
HDMI Switch
HDMI1/2/3
RXA0P
FE_VMAIN
TV/MNT
Out
Tu
n
e
r I
n
DTV/MNT_VOUT
LGE7329A(IC900)
HDMI4
EEPROM
EEPROM
SCART
RGB
SC1-ID
SC1-FB
SC1_R/G/B
R/G/BINOP (SC1_R/G/B)
LV
DS
O
U
T
RA
1+
RA1-
RB1+
RB1-
RC1+
RC1
SC1_CVBS_IN
DSUB_HSYNC
DSUB
VSYNC
DSUB
HSYBC1/DSUB_HSYNC
VSYNC/DSUB_VSYNC
R/G/BIN1P (DSUB_R/G/B)
LVACKP
LVACKM
LVB0P
-
RD1+
RD1-
RE1+
RE1-
RCLK+
RCLK-
_
DSUB_R/G/B
COMP
COMP_Pr
SOGIN1
RIN2P/COMP_PR+
GIN2P/COMP
_Y+
BIN2P/COM
PB+
LVB0M
LVB1P
LVB1M
LVB2P
LVB2M
LVB3P
RA2+
RA2-
RB2+
RB2-
RC2+
RC2-
EEP
ROM
D_SUB_SCL
D_SUB_SDA
Serial
Flash
IC902
COMP_Y
COMP_Pb
CVBS
SC1_CVBS_IN
_
SOGIN2
CVBS1/SC_CVBS
CVBS2/SC_CVBS
CVBS3/SIDE
C
VBS
LVB3M
LVB4P
LVB4M
LVBCKP
LVBCKM
RD2+
RD2-
RE2+
RE2-
CVBS
SC2_CVBS_IN
AV_CVBS_IN
_
Side AV
DDCD_A
_DA
DDCD_A
_CK
RXACKP
RXACKN
CVBS0/RF_CVBX
CVBSOUT0
DDCD_C_DA
DDCD_C_CK
RXA0N
RXA1P
RXA1N
RXA2P
RXA2N
(SC2_MNTOUT)
LVA0P
LVA0M
RX
CCKP
RX
CCKN
RXC0P
RXC0N
RXC1P
RXC1N
HYNCO0/SC1_ID
VSYNC0/SC1_FB
LVA1P
LVA1M
LVA2P
LVA2M
LVA3P
LVA3M
RXC1N
RXC2P
RXC2N
SOGIN0/SC1_CVBS
LVA4P
LVA4M
3. Video
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