LG Z50PV220-UA (CHASSIS:PU14K) Service Manual ▷ View online
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4. General Specification
No
Item
Specification Remark
1.
Receiving System
1) ATSC/64 & 256 QAM/ NTSC-M
2.
Available Channel
1) VHF : 02~13
2) UHF : 14~69
3) DTV : 02-69
4) CATV : 01~135
5) CADTV : 01~135
3.
Input Voltage
1) AC 100 V ~ 240 V 50/60Hz
2) AC 100 V ~ 120 V 50/60Hz
4.
Market
NORTH AMERICA
5.
Screen Size
106 cm (42 inch) Wide(1024
× 768)
42T3N
127 cm (50 inch) Wide(1024
× 768)
50T3N
127 cm (50 inch) Wide(1920
× 1080)
50R3
152 cm (60 inch) Wide(1920
× 1080)
60R3
6.
Aspect Ratio
16:9
7.
Tuning System
FS
8.
PDP Module
PDP42T3#### (1024
× 768)
PDP50T3#### (1024
× 768)
PDP50R3#### (1920
× 1080)
PDP60R3#### (1920
× 1080)
9.
Operating Environment
1) Temp : 0 deg ~ 40 deg
2) Humidity : ~ 80 %
10.
Storage Environment
1) Temp : -20 deg ~ 60 deg
2) Humidity : 0 % ~ 85 %
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5. Chroma
(1) 42T3N, 50T3N, 50R3, 60R3 Module
No
Item
Min
Typ
Max
Unit
Remark
1
Color
White
X
0.270
0.285
0.300
08.11.20 Xrange change +-0.015
coordinate
Y
0.283
0.293
0.303
09.10.13 blue Y Change
Red
X
0.635
0.640
Unlimitedness
0.065~0.075
Y
0.318
0.330
0.345
- White : 85IRE(216Gray) 100%
Green
X
0.242
0.300
0.305
100% Window White Pattern
Y
0.595
0.600
Unlimitedness
-
R/G/B : 100IRE(255Gray)
Blue
X
Unlimitedness
0.150
0.158
100% Window White Pattern
Y
Unlimitedness
0.065
0.075
- Picture: Vivid(Medium )
- 100% Window
- 85IRE 100% Window White
2
Color coordinate uniformity
-0.020
average
+0.020
Pattern
- Picture: Vivid(Medium)
3
Color
Cool
0.261
0.276
0.291
-
White : 85IRE(216Gray) 100%
Temperature
0.268
0.283
0.298
Window White Pattern
Medium
0.270
0.285
0.300
- 100% Window
0.278
0.293
0.308
08.11.20 range change +-0.015
Warm : ColorGamut => WIDE
Warm
0.298
0.313
0.328
Cool:Color temperature C30
0.314
0.329
0.344
Meduum:Color temperature 0
Warm:Color temperature W30
-
- 85IRE(216Gray) 100% Window
4
Brightness uniformity
-10
0
+10
%
White Pattern
- Picture: Vivid(Medium)
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec sheet is applied to all of the PU14K 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
C ± 5 cC of temperature and 65 % ± 10 % of relative
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 cC
15 cC
- In case of keeping module is in the circumstance of 0 cC,
it should be placed in the circumstance of above 15 cC for
2 hours
2 hours
- In case of keeping module is in the circumstance of below
-20 cC, it should be placed in the circumstance of above
15 cC for 3 hours.
15 cC for 3 hours.
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 “4. WHITE PATTERN” by using
D
/
E
(CH +/-) and
select “White” by using
F
/
G
(VOL +/-)
- 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.
image may be occur in the black level part of the
screen.
V
Adjustment list
PCB assembly adjustment method
- ADC Adjustment
- DDC EDID Write Confirmation
- DDC EDID Write Confirmation
V
Total assembly line process
3. PCB assembly adjustment method
* Caution: Set up “RF mode(noise)” after PCB assembly
adjustment.
*Download
(1) Execute ISP program “Mstar ISP Utility” and then click
(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 display “Error”, Check connect computer, jig, and set.
(3) Click “Connect” tab. If display “Can’t ”, Check connect
computer, jig, and set.
(4) Click “Read” tab, and then load download file(XXXX.bin)
by clicking “Read”
(5) Click “Auto” tab and set as below
(6) Click “Run”.
(7) After downloading, check “OK” message.
(6) Click “Run”.
(7) After downloading, check “OK” message.
(1)
(3)
(2)
OK
vr
Please Check the Speed :
To use speed between from 200KHz to 400KHz
(4)
filexxx.bin
(5)
(6)
(7) ÉÉÉ.OK
4. ADC Process
4-1. Auto ADC Process (using DFT)
PC (for communication through RS-232C) UART Baud rate
: 115200 bps
Command : aa 00 00 (Start factory mode)
Command : ad 00 10 (working Auto ADC)
Command : aa 00 90 (End of Auto ADC Process)
: 115200 bps
Command : aa 00 00 (Start factory mode)
Command : ad 00 10 (working Auto ADC)
Command : aa 00 90 (End of Auto ADC Process)
4-2. Manual ADC Process using Service
Remocon
After enter Service Mode by pushing “ADJ” key, execute
“ADC Adjust” by pushing “
“ADC Adjust” by pushing “
G
” key at “0. ADC CALIBRATION”.
4-3. Confirmation
(1) We confirm whether “0xBF(480i)/0xC8(1080i)” address of
EEPROM “0xA2” is “0xAA” or not.
(2) If “0xBF(480i)/0xC8(1080i)” address of EEPROM “0xA2”
isn’t “0xAA”, we adjust once more
(3) We can confirm the ADC values from “0xB9 ~ 0xBE(480i) /
0xC2 ~ (1080i)” addresses in a page “0xA2”
* Manual ADC Confirmation using Service Remocon. After
enter Service Mode by pushing “INSTART” key,
5. DDC EDID Write Confirmation
6. Total Assembly line process
* Caution : Each PCB assembly must be checked by check JIG
set.(Because power PCB Assembly damages to PDP Module,
especially be careful)
especially be careful)
* Caution: Set up “RF mode(noise)” before voltage adjustment.
6-1. POWER PCB Ass’y Voltage
adjustment
(Va, Vs voltage adjustment)
(1) Test equipment : D.M.M 1EA
(2) Connection Diagram for Measuring : refer to fig.1
(2) Connection Diagram for Measuring : refer to fig.1
(fig.1 : Power PCB Assy Voltage adjustment)
6-2. Adjustment method
(1) Vs adjustment (refer fig.1)
1) Connect + terminal of D.M.M. to Vs pin of
P812(42”:P811), connect -terminal to GND pin of
P812(42”:P811)
P812(42”:P811)
2) After turning VR901, voltage of D.M.M adjustment as
same as Vs voltage which on label of panel left/top (
deviation ; ±0.5V)
deviation ; ±0.5V)
(2) Va adjustment (refer fig.1)
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D.M.M. to Va pin of
2) Connect + terminal of D.M.M. to Va pin of
P812(42”:P811), connect -terminal to GND pin of
P811(42”:P812).
P811(42”:P812).
3) After turning VR502,voltage of D.M.M adjustment as
same as Va voltage which on label of panel left/top
(deviation; ±0.5V)
(deviation; ±0.5V)
7. DDC EDID Write
MODEL NAME: LG TV (Not necessary)
Caution: Please only check write status in Instart-menu
7-1. Manual Download(using DFT)
PC(for communication through RS-232C), UART baud rate:
115200 bps
Command : aa 00 00 (Start Factory mode)
Command : ae 00 10 (Download All EDID)
Command : aa 00 90 (End of Factory mode)
115200 bps
Command : aa 00 00 (Start Factory mode)
Command : ae 00 10 (Download All EDID)
Command : aa 00 90 (End of Factory mode)
7-2. Manual EDID D/L using Service Remocon
(1) After enter Service Mode by pushing “ADJ” key, select “4.
EDID D/L”.
(2) Finally execute “START” by pushing “
G
” or “
9
”key.
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