Microcontroller Configuration : Option; Tv Set Alignment; Local Oscillator Alignment; G2 Alignment - Daewoo CP-885 Service Manual

3-3 Microcontroller con figuration : Option bits
These option bits are availa ble from Service mode. First find the OPTION control, and then use keys 0...7 on the
remote keypad to control bits 0 to 7 respect ively. The table below shows the options availa ble ;
B7
TOP text FASTEXT
1
off /FLOF off
TOP text FASTEXT
0
on (FLOF) on
Set all the unused bits, marked 'X', to be 0 for future compatibility.

3-4 TV set Alignment

3-4-1- Local oscillator alignment

Tune a colour bar pattern . The frequency of the signal carrier must be accurate ( Max +/- 10Khz d e viation from the
nominal channel frequency).
Find "AFT" item in service mode .
Adjust the coil L150 to bring the cursor to central position : 32.

3-4-2- G2 alignment

- Tune a colour bar pattern.
- Find the "G2 - SCREEN " item in service mode.
- Adjust screen volume ( on FBT ) to bring the cursor to central position : 32.

3-4-3- White balance

- Select a dark picture and adjust RED BIAS and GRN BIAS to the desired colour temperature.
- Select a bright picture and adjust RED, GRN and BLUE GAIN to the desired colour temperature.

3-4-4- Focus

Adjust the Focus volume ( on FBT ) to have the best resolution on screen.
3-4-5- Vertica l geometry
Adjust V.LINEAR (linear ity), S CORRECT
(S. Correction), VERT SIZE (Vertical
amplitude), VERT CENT (v ertical cent ring)
to compensate for vertical distortion.
B6 B5
TUBE 4:3
TUBE 16:9
Service manual WP 895/895F, CP885/885F
B4 B3
X
X
X
X
- 15 -
B2 B1
Tuner options
SVHS3
00 = Philips
disable
01 = ALPS
SVHS3
10 = Philips ( A GC intern)
enable
11 = Not used.
B0