Read LG 37LF75 / 37LF76 (CHASSIS:LD75B) Service Manual online
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet is applied to all of the LD75B chassis
manufactured at LG TV Plant all over the world.
manufactured at LG TV Plant all over the world.
2. Specification
2.1 Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help to protect test instruments.
transformer will help to protect test instruments.
2.2 Adjustment must be done in the correct sequence.
2.3 The adjustment must be performed at 25±5ºC temperature
2.3 The adjustment must be performed at 25±5ºC temperature
and 65±10% relative humidity if there is no specified
designation.
designation.
2.4 The input voltage of the receiver must be kept between
100~220V, 50/60Hz.
2.5 Before adjustment, execute Heat-Run for 30 minutes at RF
no signal.
3. Channel Memory
3.1 Channel memory method
1) Press ADJ key in Adjust remocon.
2) Select "System Control 3" by using
2) Select "System Control 3" by using
/
(CH+/-) key, and
press
(OK)
3) Select "Channel Recover" by using
/
(CH+/-) key, and
press
(VOL+).
4) When Channel Recover is completed, set will be turned
off and LED light go to stand-by mode.
4. EDID
* When do Set Assembly, EDID data must scan in DDC
line.
Caution
* Use the proper signal cable for EDID Download
* Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
* Caution: - Never connect HDMI & D-sub Cable at
- Digital EDID : Pin3 exists
* Caution: - Never connect HDMI & D-sub Cable at
the same time.
- Use the proper cables below for
EDID Writing.
4.1. EDID Data
4.2. Data (Refer to Product specification)
1> ANALOG (128Bytes)
2> HDMI 1(256Bytes)
3> HDMI 2(256Bytes)
Item
Condition
Hex(16) Data
Manufacturer ID
GSM
1E6D
Version
Digital : 1
01
Revision
Digital : 3
03
00
01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00
FF FF FF FF FF FF 00 1E 6D
10
01 03 01 46 27 78 EA D9 B0 A3 57 49 9C 25
20 11
49 4B A5 6E 00 31 40 45 40 61 40 81 80 90 40
30 D1 C0 01 01 01 01 1A 36 80 A0 70 38 1F 40 30 20
40 35
40 35
00 E8 26 32 00 00 1A DA 2F 78 E0 51 1A 25 40
50 58
98 14 00 E8 26 32 00 00 1A 00 00 00 FD 00 39
60 4B 1F 54 12 00 0A 20 20 20 20 20 20
70
70
00
00
01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00
FF FF FF FF FF FF 00 1E 6D
01 01 01 01
10
01 03 80 46 27 78 EA D9 B0 A3 57 49 9C 25
20 11
49 4B A5 6E 00 31 40 45 40 61 40 81 80 90 40
30 A9
40 D1 C0 01 01 1A 36 80 A0 70 38 1F 40 30 20
40 35
00 E8 26 32 00 00 1A 1B 21 50 A0 51 00 1E 30
50 48
88 35 00 BC 86 21 00 00 1C 00 00 00 FD 00 39
60 4B 1F 54 12 00 0A 20 20 20 20 20 20
70
70
01
80 02
03 21 F1 4E 81 02 03 15 12 13 04 14 05 20 21
90 22
1F 10 23 09 07 07 83 01 00 00 65 03 0C 00
A0 00
01 1D 00 80 51 D0 1C 20 40 80 35 00 BC 88 21
B0 00
00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 13
C0 8E
21 00 00 18
2
3A 80 18 71 38 2D 40 58 2C 45
D0 00
06 44 21 00 00 1E 01 1D 80 18 71 1C 16 20 58
E0 2C 25 00 C4 8E 21 00 00 9E 4E 1F 00 80 51 00 1E
F0 30
F0 30
40 80 37 00 BC 88 21 00 00 18 00 00 00 00
00
01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00
FF FF FF FF FF FF 00 1E 6D
10
01 03 80 46 27 78 EA D9 B0 A3 57 49 9C 25
20 11
49 4B A5 6E 00 31 40 45 40 61 40 81 80 90 40
30 A9
40 D1 C0 01 01 1A 36 80 A0 70 38 1F 40 30 20
40 35
00 E8 26 32 00 00 1A 1B 21 50 A0 51 00 1E 30
50 48
88 35 00 BC 86 21 00 00 1C 00 00 00 FD 00 39
60 4B 1F 54 12 00 0A 20 20 20 20 20 20
70
70
01
80 02
03 21 F1 4E 81 02 03 15 12 13 04 14 05 20 21
90 22
1F 10 23 09 07 07 83 01 00 00 65 03 0C 00
A0 00
01 1D 00 80 51 D0 1C 20 40 80 35 00 BC 88 21
B0 00
00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 13
C0 8E
21 00 00 18 02 3A 80 18 71 38 2D 40 58 2C 45
D0 00
06 44 21 00 00 1E 01 1D 80 18 71 1C 16 20 58
E0 2C 25 00 C4 8E 21 00 00 9E 4E 1F 00 80 51 00 1E
F0 30
F0 30
40 80 37 00 BC 88 21 00 00 18 00 00 00 00
a
a
d
d
d
e-2
e-2
f-1
f-1
10
10
d
c
c
c
d
b
a
b
d
e-1
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