Read LG 42PG2000-ZA (CHASSIS:PD83A) Service Manual online
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec sheet is applied all of the PDP TV, PD83A chassis.
2. Specification.
(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 protect test instrument.
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
(3) The adjustment must be performed in the circumstance of
25±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
there is no specific designation.
(4) The input voltage of the receiver must keep 100~240V,
50/60Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15°
- In case of keeping module is in the circumstance of 0°C,
15°
- In case of keeping module is in the circumstance of 0°C,
it should be placed in the circumstance of above 15°C for
2 hours
2 hours
- In case of keeping module is in the circumstance of below
-20°C, it should be placed in the circumstance of above
15°C for 3 hours,.
15°C for 3 hours,.
O
After RGB Full White in HEAT-RUN Mode, the receiver
must be operated prior to the adjustment.
O
Enter into HEAT-RUN MODE
(1) Press the POWER ON KEY on R/C for adjustment.
(2) OSD display and screen display PATTERN MODE.
(2) OSD display and screen display PATTERN MODE.
* Set is activated HEAT run without signal generator in this
mode.
* Single color pattern (WHITE) of HEAT RUN MODE uses to
check panel.
Caution: If you turn on a still screen more than 20 minutes
(Especially digital pattern, cross hatch pattern), an
after image may be occur in the black level part of the
screen.
after image may be occur in the black level part of the
screen.
Caution: Using ‘power on’ button of the control R/C, power on
TV.
3. ADC Calibration Protocol (RS232)
- Baud rate :115200 bps
- RS232 Host : PC
- echo : none
- RS232 Host : PC
- echo : none
4. ADC Adjustment
4-1. Adjustment of RGB
(1) Auto RGB Gain/Offset Adjustment
1) Convert to PC in Input-source (refer to I2C command)
2) Signal equipment displays
2) Signal equipment displays
Output Voltage: 700 mVp-p
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60 in Pattern Generator
Pattern : 65 in Pattern Generator (MSPG-925 SERISE)
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60 in Pattern Generator
Pattern : 65 in Pattern Generator (MSPG-925 SERISE)
3) Adjust by commanding AUTO_COLOR_ADJUST
(2) Confirmation
1) We confirm whether “0xAA (RGB)” address of EEPROM
“0xA2” is “0xAA” or not.
2) If “0xAA (RGB)” address of EEPROM “0xA2” isn’t “0xAA”,
we adjust once more
3) We can confirm the ADC values from “0xA4~0XA9 (RGB)”
addresses in a page “0xA2”
* Manual ADC process using Service Remocon. After enter
Service Mode by pushing “ADJ” key, execute “ADC Adjust”
by pushing “
by pushing “
G
” key at “ADC CALIBRATION: RGB-C”
4-2. COMPONENT input ADC
(1) Component Gain/Offset Adjustment
1) Convert to Component in Input-source (refer to I2C
command)
2) Signal equipment displays
Impress Resolution 480i
MODEL: 209 in Pattern Generator(480i Mode)
PATTERN : 65 in Pattern Generator( MSPG-925 SERISE)
MODEL: 209 in Pattern Generator(480i Mode)
PATTERN : 65 in Pattern Generator( MSPG-925 SERISE)
Impress Resolution 1080i
MODEL: 223 in Pattern Generator(1080i Mode)
PATTERN: 65 in Pattern Generator( MSPG-925 SERISE)
MODEL: 223 in Pattern Generator(1080i Mode)
PATTERN: 65 in Pattern Generator( MSPG-925 SERISE)
ADC adjust
Data Read
Default Write
Enter
Adjust Mode
ADC adjust
ADC Parameter
Digital Data
ADC Parameter
(Average)
Adjustment
Confirmation
Adjust Mode In
Adjust Mode Out
NO
Item
Remark
CMD1 CMD2 Data 0
A
A
A
A
A
A
A
D
D
D
D
D
D
D
0
0
0
0
9
0
0
1
2
3
4
9
0
9
Transfer 18Byte
(Input resolution Data)
To check ADC Adjustment
on Assembly line
When transfer the ‘Mode
In’, Carry the command.
MSPG925FS
Component
RGB-PC
ADC
Model : 60
(1024*768 60Hz)
Pattern : 65
Model : 209(480i 60Hz)
223(1080i 60Hz)
Pattern : 65
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