Read LG 50PM4M-WA (CHASSIS:PM75A) Service Manual online
1. Application Object
These instructions are applied to all of the 50” PLASMA
Monitor TV, PM75A Chassis(H3-HIGH).
Monitor TV, PM75A Chassis(H3-HIGH).
2. Note
(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) Before adjustment, execute Heat-Run for 30 minutes at RF
no signal.
3. Adjustment Items
1) Push the ADJ key in the Adjust Remocon.
2) Input the Option Number that was specified in the BOM,
2) Input the Option Number that was specified in the BOM,
into the Shipping area.
3) Select “Tool Option1/ Tool Option2” by using
D
/
E
(CH +/-)
key, and press the number key(0~9) consecutively.
ex) If the value of Tool Option1 is 7, input the data using
ex) If the value of Tool Option1 is 7, input the data using
number key “7” (Fig.1)
4) Press ‘power’ key of Adjust Remote Controller.
4. ADC Calibration
- Press the FRONT-AV KEY on R/C for converting input mode.
(Change RS-232 Host : PC, BandRate : 115200bps)
(Change RS-232 Host : PC, BandRate : 115200bps)
5. Auto RF/AV/S-VIDEO Color Balance
5-1. Requirement
V
This AV color balance adjustment should be performed
before white Balance Adjustment.
V
After AV color balance adjustment, Change the mode from
AV to RF.
5-2. Required Equipment
1) Remote controller for adjustment.
2) 802F Pattern Generator, Master(MSPG-925FA), etc.
2) MSPG-925FA Pattern Generator (Which has Video Signal:
2) 802F Pattern Generator, Master(MSPG-925FA), etc.
2) MSPG-925FA Pattern Generator (Which has Video Signal:
100% Color Bar Pattern shown in Fig.2).
- Model: 202 / Pattern: 33(PAL : CH)
- Model: 202 / Pattern: 33(PAL : CH)
5-3. Method of Auto RF/AV/S-VIDEO Color
Balance.
1) Press the FRONT-AV KEY on R/C for converting input
mode.
2) Input the Video Signal: 100% Color Bar signal into
AV3(ZH), AV1(TH), VIDEO1(MH)
3) Set the PSM to Standard mode in the Picture menu.
4) Press INSTART key on R/C for adjustment.
5) Press the
4) Press INSTART key on R/C for adjustment.
5) Press the
G
(Vol. +) key to operate the set, then it becomes
automatically
6) Auto-RGB OK means the adjustment is complete.
AV ADC condition
Component
RGB
MSPG925FA PAL
Model:217
Model: 3
CH model : AV1
(720P@50Hz)
(1024*768@60Hz)
Model: 202(PAL-BGDHI)
Pattern: 33 *100% Color Bar
- 6 -
ADJUSTMENT INSTRUCTIONS
(Fig.1)
- System control RS-232 Host should be “PC“ for adjustment.
(Fig.2)
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