Applicable to NEC DTA-14V4THS - DTA-20V4THS - DTA-21V4THS - CHASSIS : CP-185A (AUSTRALIA); NEC Model : N3481 - N4881 - FS572
TO ENTER SERVICE MODE [Australian Model Sets]
- Select Program Number [91].
- Adjust 'Sharpness' to minimum, and exit all menu.
- Quickly press [RED => GREEN => MENU]
LIST OF SERVICE ITEMS
- => AGC
- => BLACK-R
- => BLACK-G
- => WP RED
- => WP GREEN
- => WP BLUE
- => H-SHIFT
- => V-SLOPE
- => V-AMP
- => S-CORRECT
- => V-SHIFT
- => CH-LOCK
- => MAX VOL
- => AV-START
- => KEY LOCK
- PSNS MODE.
To EXIT service menu, press Menu key or Standby key.
In service mode press 'OK' to the micro controller i.e the I2C bus is free, and the set can be controlled by external equipment.
Press 'OK' again to allow the micro computer to control the set again.
METHOD OF CHANGE FROM DW REMOCON KEY CODE to NEC
1. Select program number [91]
2. Adjust sharpness to minimum
and exit off menu.
3. Press volume ◄
Key 3 times and volume ►
Key 3 times on front local key-board.
When changed NEW EEPROM(IC702),
Remocon key code was changed Daewoo. In order to change NEC Remocon key code,
do above procedure.
G2 alignment
* Set TV in NORMAL mode
* 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.
**Adjust screen volume ( on FBT )
such that the highest cathode cut-off voltage measured on CRT board, is V-cutoff
5V
