Read LG 22LD350 (CHASSIS:LA04A) Service Manual online
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.
MMAIN_SOC_1
TS_DATA[0]
TS_DATA[3]
TS_DATA[4]
TS_DATA[2]
TS_DATA[6]
TS_DATA[5]
TS_DATA[7]
TS_DATA[1]
PCM_A[0]
PCM_A[4]
PCM_A[5]
PCM_A[3]
PCM_A[1]
PCM_A[2]
PCM_A[6]
PCM_A[7]
PCM_A[7]
PCM_A[3]
PCM_A[2]
PCM_A[4]
PCM_A[6]
PCM_A[5]
PCM_A[1]
PCM_A[0]
R2104
0
FE_DEMOD_SCL
010:AK22
SCL1
001:AR30
SCL0
001:AB28
FE_TUNER_SCL
001:AQ29;010:Q25
R2100
0
SDA0
001:AB28
SCL_SUB/AMP
004:J28;006:K12
+3.3V_Normal
+5V_Normal
R2105
0
R2101
0
FE_DEMOD_SDA
010:AK21
FE_TUNER_SDA
001:AQ28;010:Q24
SDA_SUB/AMP
004:J27;006:K12
SDA1
001:AR30
PWM1
001:AB24;001:AL12
R147
1K
OPT
R150
1K
+3.3V_Normal
+3.3V_Normal
PWM0
001:AB24;001:AL12
R118
4.7K
4.7K
OPT
R132
4.7K
4.7K
OPT
R148
1K
OPT
R151
1K
C100
0.1uF
0.1uF
R157
1K
OPT
R156
1K
PF_WP
001:AB29
R158
3.9K
+3.3V_Normal
/PF_OE
001:AB29
IC102
HY27US08121B-TPCB
HYNIX
26
NC_17
27
NC_18
28
NC_19
29
I/O0
30
I/O1
31
I/O2
32
I/O3
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/O4
42
I/O5
43
I/O6
44
I/O7
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
R153
10K
+3.3V_Normal
R154
1K
1K
OPT
C162
0.1uF
C131
0.1uF
/PF_CE0
001:AB30
PF_ALE
001:AB29
+3.3V_Normal
/PF_WE
001:AB29
/F_RB
001:AB29
/PF_CE1
001:AB30
R155
1K
C161
10uF 6.3V
D102
ENKMC2838-T112
A1
C
A2
+3.5V_ST
NTP_MUTE
001:AB20
AMP_MUTE
006:W10
SB_MUTE
001:AA22;001:AR32
R245
100
SDA0
001:AN7
ERROR_OUT
007:M20
INV_CTL
007:M21
R238
100
RL_ON
004:E21
R201
100
R243
100
KEY2
004:B27;004:D11
R221
100
R200
100
C182
1uF
OPT
USB_CTL
004:AL28
R232
0
R196
100
OPT
/PF_WE
001:T7
R249
100
S5/S6_Reset
001:V17
Flash_WP_1
001:C11
TP806
R250
100
R185
1.2K
R253
10K
SDA1
001:AN6
IR
004:I24;004:AD4
TS_CLK
010:AC19;010:AK19
A_DIM
007:A23
SPI_CS
001:E12
PF_WP
001:Q7
NTP_MUTE
001:H15
R224
100
R242
100
R191
22
PWM0
001:N11;001:AL12
ISP_TXD
001:AR31;004:AB26
R227
33
PANEL_CTL
007:R23
PWM1
001:N10;001:AB24
AMP_RST
006:K19
FE_TUNER_SCL
001:AI8;010:Q25
TS_VALID
010:AC20;010:AK19
SCL1
001:AN6
/PF_CE0
001:S10
R237
100
R225
33
+3.5V_ST
SCL0
001:AN6
R226
33
R248
100
R195
100
R235
100
SIDE_AV_OPT
R220
100
PF_ALE
001:T8
R193
0
R192
22
PWM1
001:N10;001:AL12
R244
100
R252
1M
1M
/PF_OE
001:S10
TS_SYNC
010:AC19;010:AK20
R251
100
SPI_CK
001:I11
USB_OCD
004:AN27;004:AN28
C181
1uF
KEY1
004:B28;004:D12
PWM0
001:N11;001:AB24
ISP_RXD
004:AB26
R219
100
SPI_DO
001:E11
PWM_DIM
007:N19;008:V15;008:AE24
DBG_RX
001:AB27;004:AE8
R231
0
/F_RB
001:S11
EEPROM_SDA
001:H5;001:O16;001:AO8
FE_TUNER_SDA
001:AI8;010:Q24
EEPROM_SCL
001:H6;001:O16;001:AO8
POWER_ON/OFF1
007:O27;007:Q25;004:E21;010:AG9
EEPROM_WP
005:AH25;005:AH19;005:AH13;004:AB27
/PF_CE1
001:T8
SPI_DI
001:I10
TS_DATA[0-7]
010:AD18
R2160
22
19"~22"
R255
100
R267
22
HDMI_1
R268
22
HDMI_2
EEPROM_SDA
001:H5;001:O16;001:AB28
EEPROM_SCL
001:H6;001:O16;001:AB28
R2172
33
OPT
R2123
33
OPT
R2124
33
OPT
R2175
100
OPT
R2173
100
OPT
R2176
100
OPT
R2174
100
OPT
R2185
22
R2186
22
HDMI_4
R2187
22
OPT
R2188
100
R2189
100
R2190
0
R2193
100
R2194
22
DSUB_DET
004:AC22
SIDE_USB_DP
004:AK26
SIDE_USB_DM
004:AK26
EEPROM_SCL
001:O16;001:AB28;001:AO8
EEPROM_SDA
001:O16;001:AB28;001:AO8
AV_CVBS_DET
004:F5
R110
100
R2127
0
R2125
0
R2126
0
R178
33
OPT
SB_MUTE
001:H16;001:AR32
SIDEAV_DET
004:AN15
R111
100
OPT
TUNER_RESET
010:D13
VSB_RESET
010:AJ26
POWER_ON/OFF2_1
007:AH18;007:AN26
R112
0
R179
22
OPT
X100
12MHz
R186
100
OPT
R2111
33
R2112
33
R180
0
0
PCM_A[0-7]
PCM_A[0-7]
EEPROM_SCL
001:H6;001:AB28;001:AO8
IC105
CAT24WC08W-T
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R182
22
C197
0.1uF
R106
4.7K
R181
22
EEPROM_SDA
001:H5;001:AB28;001:AO8
+3.3V_Normal
DBG_RX
DBG_TX
R183
22
R184
22
COMP1_DET
004:Y4
5V_DET_HDMI_4
5V_DET_HDMI_2
R197
4.7K
OPT
R2106
4.7K
OPT
L105
OPT
L104
+5V_Normal
R189
100
PWM2
001:AB23
PWM2
001:AL12
R284
0
OPT
+3.5V_ST
R283
10K
FHD
R287
0
HD
R286
0
Normal LED
R281
10K
HD
R282
10K
Moving LED
R280
10K
R285
0
FHD
R218
0
R215
0
R216
0
R217
0
R239
0
R240
0
R202
0
R203
0
R2191 0
+3.5V_ST
R258
10K
OPT
Q101
KRC103S
OPT
KRC103S
OPT
R2108
1.2K
R2107
1.2K
R2110
1.2K
R2109
1.2K
+3.5V_ST
C121
10uF
6.3V
Q108
2SC3052
2SC3052
E
B
C
C120
4.7uF
10V
S5/S6_Reset
SW100
1
2
4
3
R135
100
R228
100
R133
10K
R134
10K
+3.5V_ST
IC104
AT24C512BW-SH-T
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R131
3.3K
3.3K
R2222
100
POWER_DET
R2221
100
DBG_TX
IC100
MSD3159GV
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
J1
DDCA_DA
J2
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
C187
20pF
C186
20pF
IC103
MAX810RTR
1
GND
3
VCC
2
RESET
R266
3.3K
3.3K
R260
3.3K
3.3K
POWER_DET
PWM3
001:AL12
PWM3
001:AB23
LED_B/LG_LOGO
007:N19;008:V15;008:AE24
LED_R/BUZZ
007:A23
R115
100
100
HP_DET
SIDE_HP_MUTE
POWER_ON/OFF2_2
007:AH18;007:AN26
HP_MUTE
004:AL28
OLP
001:H15
R187
1K
R113
1K
OPT
AR100
22
AR101
22
AR103
22
AR102
22
IC102-*1
NAND512W3A2CN6E
NUMONIX
26
NC_17
27
NC_18
28
NC_19
29
I/O0
30
I/O1
31
I/O2
32
I/O3
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VDD_2
38
NC_23
39
NC_24
40
NC_25
41
I/O4
42
I/O5
43
I/O6
44
I/O7
45
NC_26
46
NC_27
47
NC_28
48
NC_29
17
AL
3
NC_3
6
NC_6
16
CL
15
NC_10
14
NC_9
13
VSS_1
12
VDD_1
11
NC_8
10
NC_7
9
E
8
R
7
RB
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
W
MAIN_SOC_1
I2C
MCU BOOT STRAP
10 : BOOT 51
11 : BOOT RISC
11 : BOOT RISC
EEPROM
NAND FLASH MEMORY
/PF_CE0
H : Serial Flash
L : NAND Flash
/PF_CE1
H : 16 bit
L : 8 bit
H : Serial Flash
L : NAND Flash
/PF_CE1
H : 16 bit
L : 8 bit
Audio Mute
1
USB
ISP Debug port for S5
Stand-by GPIO
Stand-by GPIO(SAR[0-3])
PWM Dimming
Interrupt for ISP Wake up in STB Mode
$0.199
Addr:10101--
HDCP EEPROM
D6 D7 E11 B9
S5 Reset
LD350
----------------------
HIGH LOW
D6 LCD PDP
D7 B_LVDS A_LVDS
E11 MOVING : PWM R/B
B9 FHD HD
----------------------
HIGH LOW
D6 LCD PDP
D7 B_LVDS A_LVDS
E11 MOVING : PWM R/B
B9 FHD HD
----------------------
09.09.03
I2C for Tuner_5V
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