LG 50PG79ED-AF (CHASSIS:PA84D) Service Manual ▷ View online
V
General Module Specification
- 5 -
- 6 -
V
General Model Specification
- 7 -
1. Application Range
This spec. sheet is applied to all of the PA81A, PA81C
chassis manufactured at LG TV Plant all over the world.
chassis manufactured at LG TV Plant all over the world.
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 15 minutes prior
to the adjustment.
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) Press the ADJ KEY on R/C and enter EZ ADJUST
2) Press the ADJ KEY on R/C and enter EZ ADJUST
- Select “3. Test Pattern” by using
D
/
E
(CH +/-) and
press ENTER(
V
)
- Select “White” by using
F
/
G
(VOL +/-) and press
ENTER(
V
)
* Set is activated HEAT-RUN without signal generator in
this mode.
* Single color pattern ( RED / BLUE / GREEN ) 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.
an after image may be occur in the black level part of
the screen.
PCB Assembly Adjustment Method
Caution: Using ‘power on’ button of the control R/C , power
on TV.
All adjustment process is executed one time through RS-
232C.
Do not connect external input cable.
Power off TV After adjustment method, not using ‘in-stop’
button of control R/C
on TV.
All adjustment process is executed one time through RS-
232C.
Do not connect external input cable.
Power off TV After adjustment method, not using ‘in-stop’
button of control R/C
3. S/W Auto Download Using the
USB Memory Stick
Caution: Using ‘power on’ button of the control R/C, power on
TV.
USB file (EPK) version must be bigger than downloaded
version of main B/D.
TV.
USB file (EPK) version must be bigger than downloaded
version of main B/D.
(1) Insert the USB memory stick to the PCB ASSEMBLY.
(2) Using ‘power on’ button of the control R/C, power on TV.
(3) S/W download process is executed automatically.
(2) Using ‘power on’ button of the control R/C, power on TV.
(3) S/W download process is executed automatically.
4. Auto-control Adjustment Process
(1) All adjustment process is executed one time through RS-
232C.
(2) Command send
(
ADC Calibration
(
Model name
download
(
EDID download.
ADJUSTMENT INSTRUCTION
1
2
3
4
5
6
7
8
9
10
Ready
ADC
ADC
Confirmation
ADC
Mode Out
Download
Mode In
EDID
Download
Check EDID
Status
Define model
name
Adjustment
Confirmation
Download
Mode Out
NO
Item
Remark
CMD1 CMD2
Data 0
a
a
a
a
a
a
a
a
a
a
d
d
d
d
e
e
e
e
e
e
0
0
9
0
0
0~4,9
0~4,9
1~7
9
0
0
1
9
9
0
1
2
5
9
9
Ready
ADC start
Transmitting adjustment mode In
instruction, operate adjustment command.
All=0 ; HDMI1,2,3,4=1,2,3,4 ; RGB=9
All=0 ; HDMI1,2,3,4=1,2,3,4 ; RGB=9
Model define index(Data0) are listed at
next table.
EDID data existence check in SET
assembly
- 8 -
O
Adjsutment process protocol(RS-232C)
5. Manual Model Name Download
(1) Press ADJ key on R/C for model name D/L
(2) Select “0. Model Option” and press ENTER(
(2) Select “0. Model Option” and press ENTER(
V
)
(3) Select model name by using
D
/
E
(CH +/-) and press
ENTER(
V
)
6. Manual ADC Adjustment
O
Adjustment is done using internal ADC, so input signal is
not necessary.
O
Do not connect external input cable.
O
Required Equipment
Remote controller for adjustment
(1) Press ADJ key on R/C for adjustment.
(2) Select “1. ADC calibration” by using
(2) Select “1. ADC calibration” by using
D
/
E
(CH +/-) and
press ENTER(
V
)
(3) Select “Start” by using
F
/
G
(VOL +/-) and press ENTER(
V
)
(4) ADC adjustment is executed automatically.
7. Manual EDID Download
Caution: Do not connect HDMI and RGB cable.
(1) Press ADJ KEY on R/C and enter EZ ADJUST.
(2) Select “5.EDID D/L” by using
(2) Select “5.EDID D/L” by using
D
/
E
(CH+/-) and press
ENTER(
V
).
(3) Select “Start” and press ENTER(
V
).
(4) EDID download is executed automatically.
(5) Press EXIT key on R/C.
(5) Press EXIT key on R/C.
7-1. EDID DATA
(1) RGB EDID
Numbers in the red line is week & year manufacture and
numbers in the blue line is check sum.
numbers in the blue line is check sum.
(2) HDMI EDID
1) HDMI 1
Numbers in the red line is week & year manufacture and
numbers in the blue line is check sum.
numbers in the blue line is check sum.
2) HDMI 2
Numbers in the red line is week & year manufacture and
numbers in the blue line is check sum.
numbers in the blue line is check sum.
a
a
a
a
a
a
a
a
a
e
e
e
e
e
e
e
e
e
5
5
5
5
5
5
5
5
5
1
2
3
4
5
6
7
8
9
60PG30UD-AA
50PG60UD-AA
50PG20D-AA
42PG60UD-AA
42PG20D-AA
60PG70FD-AB
50PG70FD-AB
60PG30FD-AA
60PG30FD-AA
CMD1
CMD2
Data 0
Remark
60PG30UD-AA
50PG60UD-AA
50PG20D-AA
42PG60UD-AA
42PG20D-AA
60PG70FD-AB
50PG70FD-AB
60PG30FD-AA
50PG30FD-AA
13030130
36030130
32013360
56030130
52013360
17015131
37015131
13015130
33105130
Model Name
Model Option Value
NO SIGNAL or White noise
NO SIGNAL
RF Input
AV / Component / RGB input
a
a
a
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