LG 47LH9000 (CHASSIS:LD91I) 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
30. Bluetooth “Connection on” Problem
Check IR B'D P101 Wafer
& Connector
Check MAIN B'D P1304
Wafer & Connector
YES
YES
Replace IR B'D
IR B'D IC100 Pin #1, 3
Voltage 4V
- ?
YES
NO
Replace it
NO
Replace IR B'D IC100
NO
Replace MAIN B'D IC100
31. Remote control Problem
Check IR B'D P101 Wafer
& Connector
Check MAIN B'D P1304
Wafer & Connector
YES
YES
Check IR B'D IC102
Pin #6 5V ?
NO
Replace it
YES
Replace IR B'D IC102
32. Intelligent Sensor Problem
- 30 -
BLOCK DIAGRAM
- 31 -
300
200
200T
200N
A2
A10
900
120
510
580
121
121
500
560
310
800
802
801
530
550
805
521
400
803
804
540
LV
1
LV
2
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
ISP_TXD
EEPROM_SDA
0 0 1 : H 1 6 ; 0 0 1 : J 1 9 ; 0 0 1 : Y 1 4
FE_TUNER_SDA
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
HY27US08121B-TPCB
IC102
NAND_FLASH
26
NC_17
27
NC_18
28
NC_19
29
I / O 0
30
I / O 1
31
I / O 2
32
I / O 3
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VCC_2
38
PRE
39
NC_23
40
NC_24
41
I / O 4
42
I / O 5
43
I / O 6
44
I / O 7
45
NC_25
46
NC_26
47
NC_27
48
NC_28
17
ALE
3
NC_3
6
NC_6
16
CLE
15
NC_10
14
NC_9
13
VSS_1
12
VCC_1
11
NC_8
10
NC_7
9
CE
8
RE
7
R/B
4
NC_4
5
NC_5
25
NC_16
24
NC_15
23
NC_14
2
NC_2
22
NC_13
21
NC_12
1
NC_1
20
NC_11
19
WP
18
WE
KRC103S
Q100
OPT
E
B
C
+3.3V
PCM_A[0-14]
+3.3V
+3.3V
SPI_DI
/PF_CE0
SPI_CS
+3.3V
KRC103S
Q101
OPT
E
B
C
+3.3V
+3.3V
FE_TUNER_SCL
SDA0
SCL0
Flash_WP_1
0
R174
0
R175
0
OPT
R102
1M
R193
0
R172
22
AR102
22
AR103
/PF_CE0
0 0 1 : E 4
/PF_CE1
0 0 1 : E 6
/PF_OE
0 0 1 : E 4
/PF_WE
0 0 1 : E 7
PF_WP
001:C8
PF_ALE
0 0 1 : E 6
/F_RB
0 0 1 : E 3
22
AR100
22
AR101
/F_RB
/PF_OE
/PF_WE
/PF_CE1
PF_ALE
PF_WP
PCM_A[0-7]
SPI_CS
SPI_CK
SPI_CK
SPI_DO
0
R101
SPI_DO
SPI_DI 0 0 1 : I 1 2
PCM_D[0-7]
PCM_RST
/PCM_OE
/PCM_REG
/PCM_WE
/PCM_IOWR
/PCM_IORD
/PCM_CE
/PCM_CD
/PCM_WAIT
/PCM_IRQA
PCM_5V_CTL
0 0 5 : E 2 5
CI_TS_DATA[0-7]
IR
009:AE22
+3.3V_ST
SC_RE2
0 0 9 : E 2 2
SIDE_HP_MUTE
007:G26
SCART2_MUTE
009:Y27
NTP_MUTE
007:R13
EDID_WP
0 0 4 : M 1 8 ; 0 0 6 : A I 8 ; 0 0 6 : A L 3 ; 0 0 6 : A L 1 3 ; 0 0 6 : A L 1 8
HP_DET
AMP_RST
0 0 7 : E 5
SCART1_MUTE 009:Y24
ERROR_OUT
008:B7
SC_RE1
009:C21
KEY2
009:AB20
KEY1
009:AB20
BUF_TS_VAL_ERR
005:V21
BUF_TS_SYN
005:V22
BUF_TS_CLK
005:V21
BUF_TS_DATA[0]
005:V22
CI_TS_CLK
005:D10
CI_TS_SYN
005:D10
CI_TS_VAL
005:D10
USB_CTL
0 0 4 : A J 1 2
PWM1
PWM0
0.1uF
C104
0 . 1 u F
C106
0 . 1 u F
C103
33
R1513
33
R1514
33
R1515
33
R1516
33
R1510
33
R1517
33
R1511
33
R1518
33
R1512
33
R1519
1K
R112
OPT
1K
R105
OPT
10K
R103
10K
R104
3.9K
R111
33
R1524
33
R1525
33
R1526
33
R1530
4.7K
R1533
+3.3V
EEPROM_SDA
0 0 1 : H 1 6 ; 0 0 1 : J 1 9 ; 0 0 1 : P 1 2
1K
R1539
1K
R1540
L102
EEPROM_SCL
0 0 1 : J 1 9 ; 0 0 1 : P 1 2 ; 0 0 1 : Y 1 3
CAT24WC08W-T
IC107
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
EEPROM_SDA
0 0 1 : J 1 9 ; 0 0 1 : P 1 2 ; 0 0 1 : Y 1 4
EEPROM_SCL
0 0 1 : H 1 6 ; 0 0 1 : J 1 9 ; 0 0 1 : Y 1 3
SCART2_DET
INV_CTL
008:B4
Flash_WP_1
001:B11
SCL1
0 0 1 : J 2 1
SDA1
0 0 1 : J 2 1
PANEL_CTL
008:Q5
DBG_RX
POWER_ON/OFF1
008:N5;008:Q14;009:AG26
USB_OCD
004:AM13
SDA_SUB/AMP
0 0 7 : E 1 2 ; 0 0 9 : A J 1 9
SDA1
0 0 1 : A J 1 2
0
R123
FE_DEMOD_SDA
010:AG17
SCL_SUB/AMP
0 0 7 : E 1 2 ; 0 0 9 : A J 1 8
0
R128
0
R122
0
R129
EEPROM_SDA
0 0 1 : H 1 6 ; 0 0 1 : P 1 2 ; 0 0 1 : Y 1 4
SDA0
0 0 1 : J 2 0 ; 0 0 1 : Y 1 4
SCL0
0 0 1 : J 2 0 ; 0 0 1 : Y 1 4
4.7K
R124
FE_DEMOD_SCL
010:AG17
EEPROM_SCL
0 0 1 : H 1 6 ; 0 0 1 : P 1 2 ; 0 0 1 : Y 1 3
4.7K
R125
SCL1
0 0 1 : A J 1 3
+3.3V
SCART1_DET
EEPROM_SCL
0 0 1 : H 1 6 ; 0 0 1 : J 1 9 ; 0 0 1 : P 1 2
ISP_RXD
COMP_DET
DSUB_DET
AV_CVBS_DET
0 0 4 : J 3
0
R151
0
OPT
R1509
0
R131
MEMC_SCL
0 1 1 : I 2 2 ; 0 1 1 : A K 4
MEMC_SDA
0 1 1 : I 2 2 ; 0 1 1 : A K 4
0
R130
SDA0
0 0 1 : J 2 0 ; 0 0 1 : Y 1 4
SCL0
0 0 1 : J 2 0 ; 0 0 1 : Y 1 4
12MHz
X100
SB_MUTE
0 0 7 : G 2 5 ; 0 0 7 : R 1 2 ; 0 0 9 : Y 2 3 ; 0 0 9 : Y 2 6
JTP-1127WEM
SW100
1
2
43
+3.3V_ST
10K
R115
KIA7427F
IC101
2
GND
3
OUT
1
VCC
0 . 0 2 2 u F
16V
C101
470
R107
SIDE_USB_DP 004:AJ14
15K
OPT
R132
15K
OPT
OPT
R133
0
R179
0
R178
SIDE_USB_DM
0 0 4 : A J 1 4
DIMMING_RESET
DBG_TX
DBG_RX
BT_ON/OFF
007:AL5
+3.3V
LED_ON
FE_RESET
MODEL_OPT_3
MODEL_OPT_2
MEMC_RESET
+3.3V
MODEL_OPT_1
FE_AGC_SPEED_CTL
MODEL_OPT_1
MODEL_OPT_2
0
R189
MODEL_OPT_3
+5V_GENERAL
4.7K
R1504
FE_TUNER_SCL
001:AK13;010:W9
4.7K
R1505
FE_TUNER_SDA
001:AK13;010:W8
20pF
C111
20pF
C112
HPD3
+12V
POWER_DET
1K
1%
32~37
R1527
R1527
0
R1546
1.8K
42~47
R1529
+24V
KIA7042AF
IC1500
2
G
3
O
1
I
+3.3V_ST
2.7K
1%
42~47
R1528
R1528
10K
R1543
PWM2
0 0 1 : S 1 5
1K
OPT
R1500
PWM2
1K
R1501
2 . 2 u F
OPT
C1501
+3.3V
1K
R198
A_DIM
PWM0
100
R1544
1K
OPT
OPT
R199
1uF
OPT
OPT
C1500
PWM0
PWM1
PWM_DIM
0
R168
0
R100
0
R116
0
R146
0
R173
0 . 1 u F
C100
100
R1601
100
R1600
100
R183
100
R190
100
R153
100
R154
100
R177
100
R184
100
R185
100
R159
100
R1534
100
R127
100
R188
100
R186
100
R148
100
R166
100
R157
100
R106
100
R1550
100
R160
100
R156
100
R147
100
R192
100
R155
10K
R195
22
R140
22
R142
22
R141
22
R143
22
R171
22
R161
22
R170
22
R108
22
R1538
22
R1535
22
R1536
22
R169
22
R150
4.7K
R158
4.7K
OPT
R152
10uF
6.3V
C102
2.2K
R1503
2.2K
R1502
+3.3V_TUNER
1.2K
R1506
1.2K
R1507
POWER_DET
DBG_TX
POWER_DET
100
R187
OPT
100
R1523
ISP_TXD
100
R1520
100
R182
OPT
100
R1611
3.3K
R1607
3.3K
R1604
OPT
3.3K
R1605
OPT
3.3K
R1603
3.3K
R1606
3.3K
R1608
OPT
IC100
LGE3369A (Saturn6 Non RM)
HWRESET
D4
PCMD0/CI_D0
AC16
PCMD1/CI_D1
AA15
PCMD2/CI_D2
AA16
PCMD3/CI_D3
AC6
PCMD4/CI_D4
Y10
PCMD5/CI_D5
Y11
PCMD6/CI_D6
Y12
PCMD7/CI_D7
Y13
PCM_A0/CI_A0
AB16
PCM_A1/CI_A1
AC15
PCM_A2/CI_A2
AC14
PCM_A3/CI_A3
AB14
PCM_A4/CI_A4
AC12
PCM_A5/CI_A5
AB8
PCM_A6/CI_A6
AC13
PCM_A7/CI_A7
AA9
PCM_A8/CI_A8
AB5
PCM_A9/CI_A9
AA4
PCM_A10/CI_A10
V4
PCM_A11/CI_A11
Y4
PCM_A12/CI_A12
AB9
PCM_A13/CI_A13
AA7
PCM_A14/CI_A14
AD6
PCM_RST/CI_RST
AA14
PCM_CD/CI_CD
AB18
/PCM_OE
Y5
PCM_REG/CI_CLK
AB15
PCM_WAIT/CI_WACK
AA10
/PCM_IRQA
AC8
/PCM_WE
AC7
PCM_IOWR/CI_WR
AA5
PCM_IOR/CI_RD
W4
/PCM_CE
T4
/PF_CE0
AE6
/PF_CE1
AF6
/PF_OE
AA12
/PF_WE
AA11
PF_ALE
AC9
PF_AD15
Y14
F_RBZ
AB11
UART2_TX/SCKM
F8
UART2_RX/SDAM
D11
DDCR_DA
AB21
DDCR_CK
AC21
DDCA_CLK
J 1
DDCA_DA
J 2
UART_RX2
W5
UART_TX2
V5
PWM0
AB13
PWM1
AB12
PWM2
AD12
PWM3
AA13
SAR0
A4
SAR1
B4
SAR2
F4
SAR3
E4
IRIN
C4
GPIO44
AC11
GPIO96
D9
GPIO88
D10
GPIO90/I2S_OUT_MUTE
D7
GPIO91
E11
GPIO97
E8
GPIO98
E10
GPIO99
D6
GPIO103/I2S_OUT_SD3
D5
GPIO102
C5
XIN
B3
XOUT
A3
TESTPIN/GND
E6
SPI_DI
AE11
SPI_DO
AF12
/SPI_CS
AE12
SPI_CK
AD11
USB_DP_1
B5
USB_DM_1
A5
USB_DM_2
AC10
USB_DP_2
AB10
GPIO_PM0/GPIO134
E5
GPIO_PM1/GPIO135
F5
GPIO_PM2/GPIO136
G5
GPIO_PM3/GPIO137
H5
GPIO_PM4/GPIO138
F6
GPIO_PM5/INT1/GPIO139
G6
GPIO_PM6/INT2/GPIO140
H6
GPIO131/LDE/SPI_WPn1
AC17
GPIO130/LCK
AB17
GPIO132/LHSYNC/SPI_WPn
AF11
GPIO60/PCM2_RESET/RX1
AA18
GPIO62/PCM2_CD_N/TX1
AA17
LHSYNC2/I2S_OUT_MUTE/RX1
E7
LVSYNC/GPIO133
AC18
GPIO79/LVSYNC2/TX1
C6
UART2_RX/GPIO84
F9
UART2_TX/GPIO85
F10
UART1_RX/GPIO86
A6
UART1_TX/GPIO87
B6
GPIO42/PCM2_CE_N
AF5
GPIO43/PCM2_IRQA_N
AF10
TS0_D0
AA8
TS0_D1
Y8
TS0_D2
Y9
TS0_D3
AB7
TS0_D4
AA6
TS0_D5
AB6
TS0_D6
U4
TS0_D7
AC5
TS0_SYNC
AC4
TS0_VLD
AD5
TS0_CLK
AB4
TS1_D0
AB19
TS1_SYNC
AA20
TS1_VLD
AC19
TS1_CLK
AA19
ET_TXD0
C10
ET_TXD1
B11
ET_TX_CLK
A9
ET_RXD0
C11
ET_RXD1
C9
ET_TX_EN
B10
ET_MDC
A10
ET_MDIO
B9
ET_COL
A11
GPIO67
A7
GPIO68
B8
100
R1545
0 . 1 u F
C114
4.7K
R109
+3.3V
FE_BOOSTER_CTL
009:AH22
BT_AU_SW
HP_AU_SW
BT_DM
BT_DP
WARM_LED_ON
010:B2
R114
OPT
+3.3V_ST
10uF 10V
C105
8pF
C108
OPT
8pF
C107
OPT
2SC3052
Q103
32~37
E
B
C
1.1K
R135
32~37
2.2K
R118
32~37
10K
R120
32~37
12K
1%
R134
32~37
1K
R119
32~37
+5V_GENERAL
+12V
2SC3052
Q102
32~37
E
B
C
1K
R121
32~37
22
R117
32~37
0
R165
0
R164
0
R162
0
R163
0
R1537
22
R110
22
R113
100
R1612
SEL2_HDMI_SW
3.3K
R1609
MODEL_OPT_0
MODEL_OPT_0
0
R126
3.3K
R1610
OPT
5V_HDMI_3
5V_HDMI_1
006:D1;006:AK2
5V_HDMI_2
006:D10;006:AK8
22
R1613
0
R136
3.9K
32~37
R1521
1K
R167
1K
R191
W25X32VSSIGE
IC103
SPI_S6
3
WP
2
DO
4
GND
1
CS
5
DIO
6
CLK
7
HOLD
8
VCC
M24512-WMW6G(REV.B)
IC105
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
PCM_A[0]
PCM_A[1]
PCM_A[2]
PCM_A[3]
PCM_A[4]
PCM_A[5]
PCM_A[6]
PCM_A[7]
PCM_A[7]
PCM_A[6]
PCM_A[5]
PCM_A[4]
PCM_A[0]
PCM_A[1]
PCM_A[3]
PCM_A[2]
PCM_A[8]
PCM_A[9]
PCM_A[10]
PCM_A[12]
PCM_A[13]
PCM_A[11]
PCM_A[14]
PCM_D[0]
PCM_D[1]
PCM_D[2]
PCM_D[3]
PCM_D[4]
PCM_D[5]
PCM_D[6]
PCM_D[7]
CI_TS_DATA[0]
CI_TS_DATA[1]
CI_TS_DATA[3]
CI_TS_DATA[2]
CI_TS_DATA[5]
CI_TS_DATA[4]
CI_TS_DATA[7]
CI_TS_DATA[6]
EEPROM
Serial FLASH MEMORY
for BOOT
I2C
NAND FLASH MEMORY
1 1 3
MAIN_1
EAX61052801
/PF_CE0
H : S e r i a l F l a s h
L : N A N D F l a s h
/PF_CE1
H : 1 6 b i t
L : 8 b i t
Addr:10101--
HDCP EEPROM
IC105: EAN43352801(ATMEL SHRINK)
2 0 0 9 . 0 2 . 2 3
PM GPIO Assignment Recommended by MStar
1386 WON
$ 0 . 7 6
$0.418
$0.199
VOLTAGE DETECTOR
* M s t a r r e s e t : A c t i v e h i g h r e s e t
SIDE_USB
0IMMRMP008A(MICROCHIP)
POWER DETECT
MODEL OPTION
0 8 0 9 2 3 _ T i m e D e l a y
MCU BOOT STRAP
DIMMING
1 0 : B O O T 5 1
11 : BOOT RISC
I n t e r r u p t f o r I S P W a k e u p i n S T B M o d e
FRC
MODEL_OPT_1
E11
PDP
LVDS_A
LED_MOVING
LCD
PIN NO.
HD
LOW
LVDS_B
NO_FRC
B9
MODEL_OPT_3
MODEL OPTION
MODEL_OPT_2
B9(FHD)
D6
D7
HIGH
MODEL_OPT_0
PIN NAME
B9(HD)
FHD
LED_NORMAL
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