Read LG 50PZ570B-SB (CHASSIS:PB12A) Service Manual online
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet applies to PB12A 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. But it is
flexible when its factory local problem occurs.
(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) Before adjustment, execute Heat-Run for 5 minutes.
V
After Receive 100% Full white pattern (06CH) then
process Heat-run
process Heat-run
(or “8. Test pattern” condition of Ez-Adjust status)
V
How to make set white pattern
1) Press Power ON button of Service Remocon
2) Press ADJ button of Service remocon. Select “10.
2) Press ADJ button of Service remocon. Select “10.
Test pattern” and, after select “White” using
navigation button, and then you can see 100% Full
White pattern.
navigation button, and then you can see 100% Full
White pattern.
* In this status you can maintain Heat-Run useless any
pattern generator
* Notice: if you maintain one picture over 20 minutes
(Especially sharp distinction black with white pattern –
13Ch, or Cross hatch pattern – 09Ch) then it can
appear image stick near black level.
13Ch, or Cross hatch pattern – 09Ch) then it can
appear image stick near black level.
3. Adjustment items
3-1. PCB Assembly adjustment
Caution: Using ‘power on’ button of the control R/C power on
TV
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MAC Address and Widevine Key Down load
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ADC Adjustment (manual)
V
DFT Process
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Insert Tool OPTION (Manual)
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Insert EDID (Manual)
3-2. Set Assembly Adjustment
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Power PCB Assembly Voltage adjustment
(Va,Vs voltage adjustment)
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Adjustment of White Balance
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Serial number download & Model name D/L
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Checking the Eye-Q Operation
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Ping Test
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LAN port inspection (Ping test)
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Check Wireless function
V
Magic Motion Remote Controller test
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3D function test
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GND and ESD tes
4. PCB Assembly Adjustment
4-1. MAC Address and Widevine Key
Download
* 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’s own MAC Address. Please be careful
of download.
4-2. ADC Adjustment (Manual)
* GP3 (PB12A) Chassis don’t need Auto ADC adjust process
but, if you need to adjust ADC manually follow this method.
V
Using instrument
1) Adjustment remocon, 801GF(802B, 802F, 802R) or
MSPG925FA pattern generator
(It can output 480i/1080i horizontal 100 % color bar
pattern signal, and its output level must setting
0.7 V ± 0.1 V p-p correctly)
pattern signal, and its output level must setting
0.7 V ± 0.1 V p-p correctly)
< Adjustment pattern : 480i / 1080p 60Hz Pattern >
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