LG 50PZ750-UG (CHASSIS:PU12A) Service Manual ▷ View online
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4. General Specification
No
Item
Specification
Remark
1.
Receiving System
1) ATSC / 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 / 60 Hz
N.America Mark : 110V, 60Hz
4.
Market
NORTH AMERICA, KOREA
5.
Screen Size
127 cm (50 inch) Wide(1920
× 1080)
50PZ950-UA, 50PZ950-UF
152 cm (60 inch) Wide(1920
× 1080)
60PZ950-UA, 60PZ950-UF
6.
Aspect Ratio
16:9
7.
Tuning System
FS
8.
PDP Module
PDP50R3#### (1920
× 1080)
50PZ950-UA, 50PZ950-UF
PDP60R3#### (1920
× 1080)
60PZ950-UA, 60PZ950-UF
9.
Operating Environment
1) Temp : 0 deg ~ 40 deg
2) Humidity : ~ 80 %
10.
Storage Environment
1) Temp : -20 deg ~ 60 deg
2) Humidity : ~ 85 %
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet applies to PU12A Chassis applied PDP TV
all models manufactured in TV factory.
all models manufactured in TV factory.
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.
Caution) When still image is displayed for a period of 20 minutes
or longer (especially where W/B scale is strong. Digital
pattern 13ch and/or Cross hatch pattern 09ch), there
can some afterimage in the black level area.
pattern 13ch and/or Cross hatch pattern 09ch), there
can some afterimage in the black level area.
3. Adjustment items
3-1. Board-level adjustment
- Mac address and Idfile(ESN) Download
- Adjust 480i Comp1 adj.
- Adjust 1080p Comp1 adj.
- Adjust 1920*1080 RGB adj.
- Adjust 480i Comp1 adj.
- Adjust 1080p Comp1 adj.
- Adjust 1920*1080 RGB adj.
- EDID/DDC download
Above adjustment items can be also performed in Final
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Start Menu 1.
Adjust Check.
Assembly if needed. Both Board-level and Final assembly
adjustment items can be check using In-Start Menu 1.
Adjust Check.
3-2. Final assembly adjustment
- White Balance adjustment
- RS-232C functionality check
- Factory Option setting per destination
- Ship-out mode setting (In-Stop)
- RS-232C functionality check
- Factory Option setting per destination
- Ship-out mode setting (In-Stop)
3-3. Etc.
- Ship-out mode
- Service Option Default
- USB Download(S/W Update, Option)
- Service Option Default
- USB Download(S/W Update, Option)
4. MAC Address and ESN Key Write
4-1. Equipment & Condition
- Play file: Serial.exe
- MAC Address edit
- Input Start / End MAC address
- MAC Address edit
- Input Start / End MAC address
4-2. Download method
(1) Communication Prot connection
Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port
(2) MAC Address Download
- Com 1,2,3,4 and 115200(Baudrate)
- Port connection button click(1)
- Port connection button click(1)
- Load button click(2) for MAC Address write.
- Start MAC Address write button(3)
- Check the OK Or NG
- Start MAC Address write button(3)
- Check the OK Or NG
(3) Input the ESN Key
(Except Mexico/Canada Models)
- download Model sending Key file
- input by 1 by SET so as not to be duplicated
- input by 1 by SET so as not to be duplicated
5. LAN PORT + ESN INSPECTION
5-1. Equipment & Condition
- Each other connection to LAN Port of IP Hub and Jig
5-2. MAC Address & ESN Key & widevine
Key confirmation
MAC Address & ESN Key & widevine Key confirmation
MAC Address : All Models
widevine Key : All Models
ESN Key D/L : Except Mexico/Canada Models
MAC Address : All Models
widevine Key : All Models
ESN Key D/L : Except Mexico/Canada Models
- Push “IN-START” Key in service remote controller.
5-3. LAN PORT INSPECTION(PING TEST)
- LAN Port connection with PCB
- Network setting at MENU Mode of TV
- setting automatic IP
- Setting state confirmation
- Network setting at MENU Mode of TV
- setting automatic IP
- Setting state confirmation
-> If automatic setting is finished, you confirm IP and MAC
Address.
- remove LAN CABLE
6. ADC adjustment
6-1. Overview
ADC adjustment is needed to find the optimum black level and
gain in Analog-to-Digital device and to compensate RGB
deviation.
gain in Analog-to-Digital device and to compensate RGB
deviation.
6-2. Equipment & Condition
6-3. Adjustment
(1) Adj. protocol
(2) Check adjust device
Pattern Generator : (MSPG-925FA)
Adjust 480i Comp1
(MSPG-925FA:model :209 , pattern :65)
Adjust 1080p Comp1
(MSPG-925FA:model :225 , pattern :65)
Adjust RGB (MSPG-925FA:model :225 , pattern :65)
The PU02A have not ECHO.
Adjust 480i Comp1
(MSPG-925FA:model :209 , pattern :65)
Adjust 1080p Comp1
(MSPG-925FA:model :225 , pattern :65)
Adjust RGB (MSPG-925FA:model :225 , pattern :65)
The PU02A have not ECHO.
7. EDID(The Extended Display
Identification Data) / DDC(Display
Data Channel) download
Data Channel) download
7-1. Overview
It is a VESA regulation. A PC or a MNT will display an optimal
resolution through information sharing without any necessity
of user input. It is a realization of °∞Plug and Play°±.
resolution through information sharing without any necessity
of user input. It is a realization of °∞Plug and Play°±.
7-2. Equipment
- Adj. R/C
- Since embedded EDID data is used, EDID download jig,
- Since embedded EDID data is used, EDID download jig,
HDMI cable and D-sub cable are not need.
7-3. Download method
(1) Press Adj. key On the Adj. R/C, press Adj. key then select
EDID D/L. By pressing Enter key, EDID download will
begin.
begin.
(2) If Download is successful, OK is displayed.
(3) If Download is a failure, NG is displayed.
(4) Re-try download
(3) If Download is a failure, NG is displayed.
(4) Re-try download
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7-4. EDID DATA(PCM)
- Reference: Download is only possible in POWER ON
MODE.
- HDMI
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type : EDID 1.4
Block Type : EDID 1.4
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
Block Type: CEA EDID Timing Extension Version 3
RGB [C/S: 1C]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
7-5. EDID DATA(AC-3)
- Reference: Download is only possible in POWER ON
MODE.
- HDMI
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type : EDID 1.4
Block Type : EDID 1.4
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
Block Type: CEA EDID Timing Extension Version 3
RGB [C/S: 1C]
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
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Vender ID
C/S1
C/S2
HDMI1
10
9C
D2
HDMI2
20
9C
C2
HDMI3
30
9C
B2
HDMI4
40
9C
A2
Vender ID
C/S1
C/S2
HDMI1
10
9C
60
HDMI2
20
9C
50
HDMI3
30
9C
40
HDMI4
40
9C
30
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