Alignment And Adjustments - Samsung CK765DWT2X Service Manual

4. Alignment and Adjustments

4-1 Preadjustment
4-1-1 Factory Mode
1. Do not attempt these adjustments in the Video
Mode.
2. The Factory Mode adjustments are necessary
when either the EEPROM (IC902) or the CRT
is replaced.
3. Do not tamper with the ÒAdjustmentÓ screen
of the Factory Mode menu. This screen is
intended only for factory use.
4-1-2 When EEPROM (IC902) Is Replaced
1. When IC902 is replaced all adjustment data
revert to initial values. It is necessary to re-
program this data.
2. After IC902 is replaced, warm up the TV for
10 seconds
4-2 Factory/Service Mode
4-2-1 Procedure for the "Adjustment" Mode
1. This mode uses the standard remote control.
The Service Mode is activated (1) by pressing
the (Display® FACTORY) service key or (2)
by entering the following remote-control
sequence:
STAND-BY® DISPLAY®P-STD ® MUTE ®
POWER ON
2. The ÒSERVICE (FACTORY)Ó message will be
displayed. The Service Mode has four compo-
nents: Adjustment, Test Pattern, Option Bytes
and Reset.
3. Access the Adjustment Mode by pressing the
ÒVOLUMEÓ keys ( Up or Down). The adjust-
ment parameters are listed in the accompany-
ing table. Select them by pressing the CHAN-
NEL keys ( , ).
Samsung Electronics
4-1-3 When CRT Is Replaced
1. Make the following adjustments AFTER set-
ting up after setting up purity and conver-
gence:
White Balance
Sub-Brightness
Vertical Center
Vertical Size
Horizontal Size
Fail Safe (This adjustment must be the last
step.)
2. If the eeprom or CRT is replaced, set PSL and
PVA to 15 and 63 (Factory Mode).
4. Selection sequences for the PAL system:
down or up key:
AGC>VCO>SBT>SCT>SCR>SC>RG>BG>
CG>STT>VOL>LA>PSL>PVS>PVA>PHS>
PWE>PEP>PEC>PET>CDL>TSC>SA>NSL>
NVS>NVA>NHS>NEW>NEP>NEC>NET
5. Selection sequences for the NTSC system:
down or up key:
NSL>NVS>NVA>NHS>NEW>NEP>NEC>NET
6. The VOLUME keys increase or decrease the
adjustment values, (stored in the
non-volatile memory when Adjustment Mode is
cancelled).
7. Cancel the Adjustment Mode by re-pressing
the ÒFactoryÓ or ÒPower onÓ keys.
Alignment and Adjustments
4-1