Daewoo DDT-21H9ZDF(21"), Service Manual

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Service Manual CP-099/FS
3-5-1- The adjustment of vertical center
3-5 The adjustment of geometry
- Apply PAL RETMA pattern.
- Go to SERVICE MODE.
- Press V-CEN+ or V-CEN- key and "VERT CENT" OSD will be displayed.
- Adjust with V-CEN+/V-CEN- keys so that the center mark of the CRT may be located on the horizontal line in the middle of
the pattern. In case of no center mark, adjust with V-CEN+/V-CEN- keys to obtain a vertical symmetric pattern.
3-3 Microcontroller con figuration : Option bits
These option bits are availa ble from Ser vice mode. Please refer to previous page's diagram of the AFTER SERVICE state.
The table below shows the options availa ble ;
B7 B6 B5 B4 B3 B2 B1 B0
TOP text FASTEXT
off /FLOF off
TOP text FASTEXT
on (FLOF) on
1
0
00 PHILIPS CRT
10 THOMSON CRT
11 SAMSUNG CRT
Buyer
option
Aspect
option
Tuner options
00 = Philips
11 = Daewoo, Samsung
3-4 TV set Alignment
REGION SELECT : Go to SERVICE MODE and push the REGION SELECT key.
DVD UPGRADE : Go to SERVICE MODE and push DVD ON , SVC OFF. Then insert the UPGRADE CD.
Upgrde is doing automatically.
For a while, push the power switch off after screen is twinkled.
Then switch on, upgrde is done perfectly.
3-4-1- The adjustment of screen
- Go to SERVICE MODE and adjust SUB BRIGHT at below datas.
(Setting data -- Philips CRT : 38(21"), 35(14"), Thomson CRT : 35, Samsung CRT : 35)
In case of mass production in the factory, keeping the setting data value to EEPROM MASTER IC for setting of sub-bright.
- Press the SCREEN key on the service remote control so that make the horizontal line.
- Adjust the screen volume of the FBT so that the horizontal line may be minimum light.
- Press the SCREEN key on the SVC remocon to release SCREEN mode.
3-4-2- The adjustment of focus
- Apply PAL RETMA pattern.
- Adjust with the focus volume on the FBT until you get the most clear resolution line on the screen.
3-4-3- The adjustment of white balance
- Go to SERVICE MODE.
- Adjust with G DVR +/-,B DVR +/- keys so that only G,B bars in the low beam on the instrument may be located in the
center.
- The reference coordinates are X=288, Y=301
CAUTION ) All of the below keys are SERVICE MODE'S keys.
Please refer to AFTER SERVICE MODE diagram p.p10.