LG 50PA4500-TF / 50PA4520-TC (CHASSIS:PA21A) Service Manual ▷ View online
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No
Item
Specification
Remark
1
Market
Australia, New Zealand, Indonesia, Malaysia, Singa-
Non-EU analog
2
Broadcasting system
1) PAL/SECAM BG
2) PAL/SECAM DK
3) PAL I / II
4) SECAM L/L’
5) DVB T
6) DVB C
EU (PAL Market)
3
Receiving system
Analog : Upper Heterodyne
Digital : COFDM
4
Scart Jack (1EA)
PAL, SECAM
5
Component Input
(1EA)
Y/Cb/Cr, Y/ Pb/Pr
6
RGB Input (1EA)
RGB-PC
Analog (D-Sub 15Pin)
7
RS232C (1EA)
SVC
8
HDMI Input (2 or 3EA) HDMI-PC
HDMI-DTV
HDMI1/DVI, HDMI2,
HDMI3
9
Audio Input (2EA)
RGB/DVI Audio, Component
L/R Input
10
SPDIF Out (1 EA)
SPDIF Out
11
USB (1EA)
for SVC, S/W Download, DivX
12
LAN
only DVB-T2 models
13
PCMCI (1EA)
DVB-T/C Decryption Interface, CI+
5. Model General Specification
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet applies to PA21A chassis applied PDP TV all
models manufactured in TV factory.
2. Designation
(1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan which can be changed only on agreeing.
(2) Power adjustment : Free Voltage.
(3) Magnetic Field Condition: Nil.
(4) Input signal Unit: Product Specification Standard.
(5) Reserve after operation: Above 5 Minutes (Heat Run)
Temperature : at 25 °C ± 5 °C
Relative humidity : 65 % ± 10 %
Input voltage : 220V, 60Hz
(6) Adjustment equipments : Color Analyzer (CA-210 or
CA-110), DDC Adjustment Jig equipment, SVC remote
controller.
(7) 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, it
should be placed in the circumstance of above 15°C 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.
■ After RGB Full White in HEAT-RUN Mode, the receiver must
be operated prior to the adjustment.
■ 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
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.
(8) Push The “IN STOP KEY” – For memory initialization.
3. Main PCB check process
* APC - After Manual-Insult, executing APC
*
Boot file Download
(1) Execute ISP program “Mstar ISP Utility” and then click
“Config” tab.
(2) Set as below, and then click “Auto Detect” and check “OK”
message
If “Error” is displayed, Check connection between computer,
jig, and set.
(3) Click “Read” tab, and then load download file (XXXX.bin)
by clicking “Read”
(4) Click “Connect” tab. If “Can’t ” is displayed, Check
connection between computer, jig, and set.
(5) Click “Auto” tab and set as below.
(6) Click "Run".
(7) After downloading, check "OK" message.
Case1 : Software version up
1) After downloading S/W by USB , Multi-vision set will reboot
automatically
2) Push “In-stop” key
3) Push “Power on” key
4) Function inspection
5) After function inspection, Push “In-stop” key.
Case2 : Function check at the assembly line
1) When TV set is entering on the assembly line, Push “In-
stop” ke y at first.
2) Push “Power on” key for turning it on.
-> If you push “Power on” key, TV set will recover channel
information by itself.
3) After function inspection, Push “In-stop” key.
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*
USB DOWNLOAD(*.epk file download)
(1) Put the USB Stick to the USB socket
(2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is Low,
it didn’t work.
- But your downloaded version is High, USB data is
automatically detecting
(3) Show the message “Copying files from memory”
(4) Updating is staring.
(5) Updating Completed, The Multi-vision will restart
automatically.
(6) If your Multi-vision is turned on, check your updated
version and Tool option. (explain the Tool option, next
stage)
* After downloading, have to adjust TOOL OPTION again.
1) Push "IN-START" key in service remote controller.
2) Select "Tool Option 1" and Push “OK” button.
3) Punch in the number. (Each of models has their
number.)
4) Completed selecting Tool option.
3.1. ADC Process
3.1.1. ADC
■ Enter Service Mode by pushing “ADJ” key,
Calibration”
* Caution : Using ‘power on’ button of the Adjustment R/C ,
power on Multi-vision.
* ADC Calibration Protocol (RS232)
- Adjust Sequence
▪aa 00 00 [Enter Adjust Mode]
▪xb 00 40 [Component1 Input (480i)]
▪ad 00 10 [Adjust 480i Comp1]
▪xb 00 60 [RGB Input (1024*768)]
▪ad 00 10 [Adjust 1024*768 RGB]
▪aa 00 90 End Adjust mode
* Required equipment : Adjustment R/C.
3.2. Function Check
3.2.1. Check display and sound
■ Check Input and Signal items. (cf. work instructions)
1) COMPONENT (480i)
2) RGB (PC : 1024 x 768 @ 60hz)
3) HDMI
4) DVI
5) PC Audio In
* Display and Sound check is executed by Remote control-
ler.
* Caution : Not to push the INSTOP KEY after completion if
the function inspection.
NO
Enter
Adjust MODE
ADC adjust
Item
Adjust ‘Mode In’
ADC Adjust
CMD 1
A
A
CMD 2
A
D
Data 0
0
0
1
0
When transfer the
‘Mode In’,
Carry the command.
Automatically adjustment
(The use of a internal
pattern)
50PA4500-T*
50PA4520-T*
Tool option 1
36864
36960
Tool option 2
22922
39306
Tool option 3
3697
3697
Tool option 4
54342
54342
Tool option 5
10
10
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4. Total Assembly line process
4.1. POWER PCB Assy voltage adjustment
(Vs voltage adjustment)
● Required Equipment for adjustment
- D.M.M
● Condition for adjustment
- No signal with the snow noise in RF mode
4.2. Adjustment Preparation
● Required Equipment
- Remote controller for adjustment
- Color Analyzer ( CS-1000, CA-100,100+,CA-210 or same
product : CH 11 (PDP)
* Please adjust CA-210, CA-100+ by CS-1000 before measur-
ing
- Auto W/B adjustment instrument(only for Auto adjust-
ment)
- 9 Pin D-Sub Jack(RS232C) is connected to the AUTO
W/B EQUIPMENT.
Before Adjust of White Balance, Please press
POWER ONLY key
- Adjust Process will start by execute RS232C Command.
● Color temperature standards according to CSM and Module
● CS-1000/CA-100+/CA-210(CH 10) White balance adjust-
ment coordinates and color temperature.
* Connecting picture of the measuring instrument (On Auto-
matic control)
- Inside PATTERN is used when W/B is controlled. Con-
nect to auto controller or push Adjustment R/C POWER-
ON -> Enter the mode of White-Balance, the pattern will
come out.
* Auto-control interface and directions
1) Adjust in the place where the influx of light like floodlight
around is blocked. (Illumination is less than 100Lux).
2) Adhere closely the Color Analyzer ( CA210 ) to the
module less than 10cm distance, keep it with the surface
of the Module and Color Analyzer’s Prove vertically.
(80~100°).
3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 5 minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others,
check the back light on.
■ Auto adjustment Map(RS-232C)
RS-232C COMMAND
[ CMD ID DATA ]
Wb 00 00 White Balance Start
Wb 00 ff White Balance End
* Caution
- Color Temperature : COOL, Medium, Warm.
- One of R Gain/G Gain/ B Gain should be kept on 0xC0,
and adjust other two lower than C0. (when R/G/B Gain
are all C0, it is the FULL Dynamic Range of Module)
* Manual W/B process using adjusts Remote control.
■ After enter Service Mode by pushing “ADJ” key,
■ Enter White Balance by pushing “►” key at “6. White
Balance”.
■ Stick the sensor to the center of the screen and select
each items(Red/Green/Blue Gain) using ▲/▼(CH +/-)
key on R/C.
■ Adjust R/G/B Gain using◄/►(VOL +/-) key on R/C.
■ Adjust three modes all(Cool/Medium/Warm) : Fix the one
of R/G/B Gain and Change the others.
■ When the adjustment is completed, Enter “COPY ALL”.
■ Exit adjustment mode using EXIT key on R/C.
CSM
PLASMA
Cool
11000K
Medium
9300K
Warm
6500K
CSM
Color Coordination
Temp
± Color
Coordination
x
y
COOL
0.276
0.283
11000K
0.002
MEDIUM
0.285
0.293
9300K
0.002
WARM
0.313
0.329
6500K
0.002
RS-232C
COMMAND
[CMD ID DATA]
M
I
N
CENTER
(DEFAULT)
M
A
X
Cool Mid Warm
Cool Mid Warm
R Gain
jg
Ja
jd
00
172 192
192
192
G Gain
jh
Jb
je
00
172 192
192
192
B Gain
ji
Jc
jf
00
192 192
172
192
R Cut
64
64
64
128
G Cut
64
64
64
128
B Cut
64
64
64
128
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