Microcontroller Configuration : Option Bits; Tv Set Alignment; The Adjustment Of Screen; The Adjustment Of Focus - Daewoo DDT-21H9ZDF(21") Service Manual

Service Manual CP-099/FS
3-3 Microcontroller con figuration : Option bits
These option bits are availa ble from Service mode. Please refer to previous page's diagram of the AFTER SERVICE state.
The table below shows the options availa ble ;
B7
TOP text FASTEXT
1
off /FLOF off
TOP text FASTEXT
0
on (FLOF) on
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 TV set Alignment

CAUTION ) All of the below keys are SERVICE MODE'S keys.
Please refer to AFTER SERVICE MODE diagram p.p10.

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

3-5 The adjustment of geometry

3-5-1- The adjustment of vertical center

- 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.
B6 B5
00 PHILIPS CRT
10 THOMSON CRT
11 SAMSUNG CRT
B4 B3
Buyer
option
-11-
B2 B1
Tuner options
Aspect
00 = Philips
option
11 = Daewoo, Samsung
B0