Service manual CP-785A
- 8 -
3 - Alignment instructions
3-1 Microcontroller configuration : Service mode
To switch the TV set into service mode please see instruction below.
1 - Select pr. number 91
2 - Adjust sharpness to minimum value and exit all menu.
3 - Quickly press the key sequence : RED - GREEN - menu
To exit SERVICE menu press menu key or Operate(Std By) key.
In Service Mode press “OK” to stop the microcontroller i.e. the I2C bus is free and the set can be
controlled by external equipment. Press “OK” again to allow the microcontroller to control the set
again
3-2 Microcontroller configuration : Option
Option
Tuner maker Remark
0 DAEWOO / SAMSUNG for Daewoo Remote control
1 DAEWOO / SAMSUNG for Daewoo Remote control
4 DAEWOO / SAMSUNG for NEC Remote control
5 DAEWOO / SAMSUNG for NEC Remote control
3-3 TV set Alignment
3-3-1 - G2 alignement
- TV in AV mode without video signal ⇒ Black screen.
- TV preset with WP Red, WP Green and WP Blue equal to 32.
- TV preset with Black R, Black G equal to 8.
- Set TV in NORMAL I mode
- Adjust screen volume ( on FBT ) such that the highest cathod cut-off voltage measured on CRT
board, is Vcut off ± 5V.
Screen size Vcut-off
25” 140V
29” 140V
3-3-2 - White balance
- Select a dark picture and adjust Black G and Black R to the desired colour temperature.
- Select a bright picture and adjust WP Red, WP Green, WP Blue to the desired colour temperature.
3-3-3 - Focus
- Adjust the Focus volume ( on FBT ) to have the best resolution on screen.
To Next Page
Loading...
Need help?
General
