Read LG 37LF66 (CHASSIS:LD75A) Service Manual online
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet is applied to all of the LD75A chassis
manufactured at LG TV Plant all over the world.
Ex.) LD75A : 37/42/47LF65-ZC, 37/42/47LY96-ZA
manufactured at LG TV Plant all over the world.
Ex.) LD75A : 37/42/47LF65-ZC, 37/42/47LY96-ZA
2. Specification
1.1 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.
However, the use of isolation transformer will help to
protect test instruments.
1.2 Adjustment must be done in the correct sequence.
1.3 The adjustment must be performed at 25
1.3 The adjustment must be performed at 25
5
°
C
temperature and 65
10% relative humidity if there is
no specified designation.
1.4 The input voltage of the receiver must be kept between
100~220V, 50/60Hz.
1.5 Before adjustment, execute Heat-Run for 30 minutes at
RF no signal.
3. Channel Recover
* Use Channel Recover of System Control3 of Service
Menu. You can load The Channel Map In LGEMA and
LGEWR.
1) Press ADJ key on Service Remote Control. And then
Choice System Control3.
2) Choice Channel Recover.
3) Press "
" key. You can See "OK" letter. And Then The
Set power off automatically.
4) After Turn on the SET. You can confirm The Channel
map on Programme Edit OSD.
Warning … If you press IN-STOP key, The channel map
will disappear.
will disappear.
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
- 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)
Item
Condition
Hex(16) Data
Manufacturer ID
GSM
1E6D
Version
Digital : 1
01
Revision
Digital : 3
03
LD75A
STi5100
Cortez
UTT
Tool Option 1
1304
Tool Option 2
1701
Area Option
50
OPTION1
14
OPTION2
2
OPTION3
1
OPTION4
System Control1
System Control2
System Control3
BlkLine Detector
Power-off History
Panel Control
Fan Control
XSTUDIO Control
192
System Control3
Scart RGB
COMP
Channel Recover
DAGC Setting
Decoder Setting
Tuning Parameters
Decoder Line Margin
Debug Print
System Control3
Scart RGB
COMP
OK
Channel Recover
DAGC Setting
Decoder Setting
Tuning Parameters
Decoder Line Margin
Debug Print
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