LG 26LH20D (CHASSIS:LB91A) Service Manual ▷ View online
4.4 EDID DATA
1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
2) Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***:Year : Controlled
****:Check sum
4.4.1 Auto Download
• After enter Service Mode by pushing “ADJ” key,
• Enter EDID D/L mode.
• Enter “START” by pushing “OK” key.
• Enter EDID D/L mode.
• Enter “START” by pushing “OK” key.
4.4.2 Manual Download
* Caution
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
* Caution:
- Never connect HDMI & D-sub Cable at the same time.
- Use the proper cables below for EDID Writing.
- Download HDMI1, HDMI2 separately because HDMI1 is
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
* Caution:
- Never connect HDMI & D-sub Cable at the same time.
- Use the proper cables below for EDID Writing.
- Download HDMI1, HDMI2 separately because HDMI1 is
different from HDMI2.
4.4.3EDID DATA(22/26/32/37/42LH20D-AA)
1. ANALOG DATA 128 Byte (2Bi)
1. ANALOG DATA 128 Byte (2Bi)
2. DIGITAL DATA(HDMI-1/2) 256Byte
(1) HD HDMI1/2 Block1
(1) HD HDMI1/2 Block1
(2) HD HDMI1 Block2
(3) HD HDMI2 Block2
- 13 -
For Analog EDID
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
No.
Item
Condition
Hex Data
1
Manufacturer ID
GSM
1E6D
2
Version
Digital : 1
01
3
Revision
Digital : 3
03
• Detail EDID Options are below
(
a
,
,
,
,
, )
Product ID
MODEL NAME
HEX
EDID Table
DDC
Func tion
FHD Model
0001
01 00
Analog/Digital
HD Model
0000
00 00
Analog/Digital
Serial No:
Controlled on production line.
Month, Year:
Controlled on production line: ex) Monthly : ‘09’ _-> ‘09’
Year : ‘2006’ -> ‘10’
Model Name(Hex):
MODEL NAME
MODEL NAME(HEX)
ALL
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 (LG TV)
c
d
f
b
e
a
b
c
d
Checksum: Changeable by total EDID data.
Vendor Specific(HDMI)
INPUT
MODEL NAME(HEX)
HDMI1
65030C001000
HD
(22/26/32/37/42LH20D-AA)
HDMI2
65030C002000
INPUT
MODEL NAME(HEX)
HDMI1
67030C001000B82D
HDMI2
65030C002000B82D
FHD
(32/37/42LH35FD-AA)
HDMI3
65030C003000B82D
f
e
- 14 -
BLOCK DIAGRAM
DDR2 (1Gb
it)
Qimonda
/
Hy
nix
NAND Flash
(512Mb
it)
Digita
l
A
udio (Optic
)
Digita
l AMP
NT
P3100L
RS-232C (Ctrl./SVC)
I2S
DD
R_Data[
0:
15]
,
D
QS,
DM
…
Ad
dr.[ ]
, ctrl. data
MAX3
232
RS232 IC
Saturn6
Saturn6
Dat
a
[
0
…
7
]
DT
V
I
F
+
/-
Component 1
Y
Pb Pr
Au
d
io
L/R
Ad
dr[0…1], C
S
…
Phone (for RGB)
SP
DI
F
RX
/T
X
R
X
/TX
Tuner C
V
B
S, SIF
TS_Serial
In
TS_
c
lk, Sy
nc, Va
l,
Err
TS_
P
a
ra
lle
l
In[0-7]l
SCL
,
SDA_
3
.3V
CV
BS
LCD
Module
LV
D
S
Bu
ffe
r
C
E
6355
In
te
l
De
m
o
d
.
CV
BS
RGB/
H/V
EEPR
OM
AV
1
AV
2
RGB
Au
d
io
L/R
USB2.0
U
SB D
P
/DM
MIC2019
O.C. Protector
+5V
+5V
Serial Flas
h
(32Mbit)
SP
I
EEPROM
(512K)
CM3212
Sensor
SCL
,
SDA_
3
.3V
X
C
5000
T
une
r
LH30 LU20 : Side
LH20
:
Rear
Rear
DDR2 (512Mb
it
)
Qimonda
/
Hy
nix
DD
R_Data[
0:
15]
,
D
QS,
DM
…
Ad
dr.[ ]
, ctrl. data
Rear
Au
d
io
L/R
Au
d
io
L/R
Au
d
io
L/R
SVC only
LH30 LU20 : Side
LH20
:
Rear
HDMI 1
HDMI 2
HDMI 3
5V_H
DMI
1,
HPD1, DD
C
SC
L
/S
D
A
,
CLK,
DA
TA
5V_H
DMI
2,
HPD2, DD
C
SC
L
/S
D
A
,
CLK,
DA
TA
5V_H
DMI
3,
HPD3, DD
C
SC
L
/S
D
A
,
CLK,
DA
TA
LH30 LU20 : Side
LH20
:
Rear
LG Electronics. Inc. All right reserved.
- 15 -
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
300
200
200T
200N
800
804
803
805
400
900
510
310
500
120
121
802
801
550
530
910
540
A2
LV1
A10
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.
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[5]
PCM_A[3]
PCM_A[0]
PCM_A[6]
PCM_A[7]
PCM_A[4]
PCM_A[2]
PCM_A[1]
ISP_TXD
EEPROM_SDA
001:I24;001:Y14;007:V23
SUB/AMP_SDA
IC102
HY27US08121B-TPCB
EAN38563401
HY27US08121B-TPCB 512MBIT 64MX8BIT 2.7VTO3.6V 50NSEC UNIFORM SECTOR TSOP TR 48P HYNIX SEMICONDOCTOR
Nand Flash
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
Q101
KRC103S
KRC103S
OPT
E
B
C
+3.3V
+3.3V
+3.3V
SPI_DI
/PF_CE0
SPI_CS
+3.3V
Q102
KRC103S
OPT
E
B
C
+3.3V
+3.3V
SUB/AMP_SCL
Flash_WP_1
R147
22
R148
22
R172
0
R173
0
R104
0
OPT
R200
1M
1M
R167
0
AR102
22
AR103
22
/PF_CE0
001:C4
/PF_CE1
001:D6
/PF_OE
001:C4
/PF_WE
001:D7
PF_WP
001:A7
PF_ALE
001:D6
/F_RB
001:C3
AR100
22
AR101
22
/F_RB
/PF_OE
/PF_WE
/PF_CE1
PF_ALE
PF_WP
PCM_A[0-7]
SPI_CS
SPI_CK
SPI_CK
SPI_DO
R103
0
SPI_DO
SPI_DI
001:G12
IR
+3.3V_ST
EDID_WP
005:O17;007:J14;007:X14;007:AL14
AMP_RST
ERROR_OUT
KEY2
KEY1
R198
100
USB_CTL
005:AL11
PWM1
PWM0
C102
0.1uF
C104
0.1uF
C101
0.1uF
R113
1K
OPT
R108
1K
1K
OPT
R105
10K
R106
10K
R117
3.9K
R169
33
R170
33
R171
33
R109
33
R115
4.7K
+3.3V
EEPROM_SDA
001:I24;001:M13;007:V23
R114
1K
R112
1K
L102
EEPROM_SCL
001:I24;001:Y13;007:V23
R188
100
INV_CTL
Flash_WP_1
FE_TUNER_SCL
FE_TUNER_SDA
PANEL_CTL
DBG_RX
POWER_ON/OFF_GPIO
USB_OCD
EEPROM_SCL
001:I24;001:M12;007:V23
ISP_RXD
DSUB_DET
R101
0
R102
0
OPT
5V_HDMI_2
5V_HDMI_1
X100
12MHz
12MHz
R184
100
R178
100
R181
100
R204
10K
R168
0
R153
0
SIDE_USB_DM
SIDE_USB_DP
R186
100
OPC_EN
PWM_DIM
PWM0
A_DIM
009:J7
C108
1uF
PWM2
IC101
M24512-WMW6
EAN43349001
M24512-WMW6 512KBIT 64K x 8bit 1.8VTO5.5V 5MSEC SOIC(EIAJ) ST 8P STM
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
R145
100
C105
0.1uF
0.1uF
R120
0
DBG_TX
DBG_RX
R149
22
R150
22
LVDS_SEL
C103
10uF 6.3V
R143
100
LED_ON/LED_R
L103
SUB/AMP_SDA
+3.3V
SUB/AMP_SCL
EEPROM_SDA
EEPROM_SCL
R111
4.7K
R116
4.7K
R155
0
R156
0
R182
0
R183
0
R207
22
C110
20pF
20pF
50V
C111
20pF
20pF
50V
PCM_A[0-7]
001:M2
+3.3V
R130
1K
PWM1
R124
1K
OPT
PWM0
R131
1K
R123
1K
OPT
MODEL_OPT_2
R138
OPT
R134
1K
32"UP
R132
1K
26"UNDER
R137
1K
+3.3V
R133
1K
HD
MODEL_OPT_0
MODEL_OPT_3
MODEL_OPT_1
MODEL_OPT_4
R135
1K
FHD
R128
1K
HD
R125
1K
OPT
R127
OPT
R126
1K
FHD
MODEL_OPT_4
R154
0
R158
0
MODEL_OPT_1
MODEL_OPT_2
R164
0
MODEL_OPT_0
R162
0
MODEL_OPT_3
001:P18
R193
0
COMP1_DET
R189
22
R191
22
R192
22
BIT_SEL
006:K14
PWM2
LED_G
FE_TS_CLK
FE_TS_SYNC
FE_TS_VAL
FE_TS_DATA
FE_TUNER_SDA
FE_TUNER_SCL
+5V_GENERAL
DBG_TX
R210
0
OPT
R211
0
OPT
FE_TUNER_SCL
001:I24;001:M12;007:V23
FE_TUNER_SDA
001:I24;001:M13;007:V23
R218
10K
Big_+24V/Small_+15V
POWER_DET
+3.3V_ST
+12V
R219
100K
OPT
+5V_GENERAL
/FE_RESET
R180
0
R190
100
R163
100
R206
100
R176
100
R177
100
R166
100
R161
100
R159
100
R199
100
R165
100
R197
100
R160
100
R196
100
R195
100
R226
0
0
1/16W
5%
5%
/DEMOD_RESET
S6_RESET
R205
22
Q106
2SC3052
2SC3052
E
B
C
R220
4.7K
R221
10K
R227
100
+5V_ST
C113
4.7uF
10V
S6_RESET
R228
100
R229
OPT
R230
OPT
R231
0
C112
10uF
6.3V
R232
10K
POWER_ON/OFF_RESETIC
+3.3V_ST
Q107
2SC3052
2SC3052
E
B
C
SW101
1
2
4
3
+3.3V_ST
PANEL_AGP
R157
0
SB_MUTE
NTP_MUTE
R233
100
OPT
R179
100
POWER_DET
ISP_TXD
R144
10K
C109
2.2uF
R234
0
5V_HDMI_3
AV2_DET
AV1_DET
IC100
LGE3368A (Saturn6 No-DivX)
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
IC105
NCP803SN293
1
GND
3
VCC
2
RESET
IC106
MAX810RTR
1
GND
3
VCC
2
RESET
R212
15K
1%
26"UP_12V_POWER_DET
1608
+3.3V_ST
R174
10K
R201
15K
1%
LIPS_5V_POWER_DET
1608
R187
100
R185
100
R213
30K
1%
LIPS_5V_POWER_DET
1608
LED_G_SUB
R152
100
R194
0
R1006
10K
DIP_DET
Q103
2SC3052
2SC3052
DIP_DET
E
B
C
R1002
12K1%
DIP_DET
R1008
2.2K
12V_DIP_DET
R1009
22
DIP_DET
R1007
1K
DIP_DET
R1003
1.1K
DIP_DET
+5V_GENERAL
+12V
R1005
1K
DIP_DET
Q104
2SC3052
2SC3052
DIP_DET
E
B
C
Big_+24V/Small_+15V
R1001
0
22"UNDER_DIP_DET
R1004
0
26"UP_DIP_DET
R213-*1
6.2K
1/10W
1%
26"UP_12V_POWER_DET
R213-*2
9.1K
1/10W
1%
22"UNDER_15V_POWER_DET
R223
33K
1%
22"UNDER_15V_POWER_DET
1608
R118
1.2K
R119
1.2K
R107
1.2K
R110
1.2K
IC103
MX25L3205DM2I-12G
EAN39050401
MX25L3205DM2I-12G 32MBIT 4M X 8BIT 2.7VTO3.6V 12NSEC UNIFORM SECTOR SOIC(EIAJ) ST 8P MACRONIX INTERNATIONAL CO.,LTD.
Serial Flash
3
WP#
2
SO
4
GND
1
CS#
5
SI
6
SCLK
7
HOLD#
8
VCC
EEPROM
Serial FLASH MEMORY
for BOOT
for BOOT
NAND FLASH MEMORY
1 11
MSTAR-S6
AUS_EAX59793902(0)
/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
IC105: EAN43352801(ATMEL SHRINK)
2009.01.31
1386 WON
$0.76
$0.418
SIDE_USB
0IMMRMP008A(MICROCHIP)
I2C
MCU BOOT STRAP
10 : BOOT 51
11 : BOOT RISC
11 : BOOT RISC
MODEL OPTION
AUS_LH20/LH35
EAX59793902(0)_MERCURY
POWER DETECT
Modified on 081217 by JIHWAN
NCP810 : Open Drain
MAX810 : CMOS
For LH20_LH35 MP based on EAX59793901(13)
Model OPT Description, 081218 Updated
H
L
OPT0
OPT1
OPT2
OPT3
LCD
PDP
FRC
NO FRC
FHD
Blinking_LED
Moving_LED
FHD
HD
HD/Small
LVDS_CH_B
LVDS_CH_A
OPT0
OPT1
OPT2
OPT3
H
H
H
H
H
H
H
L
L
L
L
L
**LH35FD-AA
42/37/32LH20D-AA
26/22LH20D-AA
(Small)
Modified on 090123 by HONGSU
-->REVISION 11
-->REVISION13
Apply +5V_GENERAL and 12V_DIP_DET simultaneously for 26"Inch Up
Apply +5V_GENERAL and 15V_DIP_DET simultaneously for 22"Inch
Click on the first or last page to see other 26LH20D (CHASSIS:LB91A) service manuals if exist.