Read LG 50PZ650-TD (CHASSIS:PA12A) Service Manual online
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec sheet is applied to all of the PA12A 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 °C ± 5 °C of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep 100 V ~ 240
V, 50 / 60 Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15 °C
15 °C
- 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
for 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.
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.
- Set is activated HEAT run without signal generator in this
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.
pattern), an after image may be occur in the
black level part of the screen.
3. PCB assembly adjustment
method
Caution: Using ‘power on’ button of the control R/C power on TV.
3-1. Download MAC Address,
CI+ Key and widevine Key.
* Connect TV SET and PC which download keys Writing
program by RS232C-Cable
(1) Start Program and Click ‘start’ Button to connect TV and
PC.
(2) When download succeed, you can see “OK” on the
screen.
* Each Chassis has it’ own MAC Address. Please be careful of
download.
3-2. ADC Adjustment
O
Auto-control adjustment protocol(RS-232C)
(1) Adjustment of RGB
1) Convert to PC in Input-source.
2) Signal equipment displays
2) Signal equipment displays
Output Voltage: 700 mVp-p
Impress Resolution FHD (1920 x 1080 @ 60Hz)
Model : 225 in Pattern Generator
Pattern : 65 in Pattern Generator
Pattern : 65 in Pattern Generator
(MSPG-925 SERISE)
3) Adjust by commanding AUTO_COLOR_ADJUST
Order Command
Set response
1. Inter the
aa 00 00
a 00 OK00x
Adjustment
mode
mode
2. Change the
XB 00 40
b 00 OK40x (Adjust 480i Comp1 )
Source
XB 00 60
(Adjust 1080p Comp1)
b 00 OK60x (Adjust 1080p RGB)
b 00 OK60x (Adjust 1080p RGB)
3. Start
ad 00 10
Adjustment
4. Return the
OKx ( Success condition )
Response
NGx ( Failed condition )
5. Read data
( main )
(main : component1 480i, RGB 1080p)
Adjustment
ad 00 20
00000000000000000000000007c007b006dx
data
( main )
(main : component1 480i, RGB 1080p)
ad 00 30
000000070000000000000000007c00830077x
6. Confirm
ad 00 99
NG 03 00x (Failed condition)
Adjustment
NG 03 01x (Failed condition)
NG 03 02x (Failed condition)
OK 03 03x (Success condition)
NG 03 02x (Failed condition)
OK 03 03x (Success condition)
7. End ofad 00 90
d 00 OK90x
Adjustment
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