Alignment and Adjustments
4. Alignment and Adjustments
4-1 Preadjustment
4-1-1 Factory Mode4-1-3 When CRT Is Replaced
1. Do not attempt these adjustments in the Video1. Make the following adjustments AFTER set-
Mode.ting up after setting up purity and conver-
gence :
2. The Factory Mode adjustments are necessary
when either the EEPROM (IC902) or the CRTWhite Balance
is replaced.Sub-Brightness
Vertical Center
3. Do not tamper with the OAdjustment� screenVertical Size
of the Factory Mode menu. This screen isHorizontal Size
intended only for factory use.Fail Safe (This adjustment must be the last
step).
4-1-2 When EEPROM (IC902) Is Replaced
2. If the EEPROM or CRT is replaced, set SC and
1. When IC902 is replaced all adjustment dataPVA to 10 and 45 (Factory mode).
revert to initial values. It is necessary toSC : 14, 16 Inch : 0
re-program this data.
20, 21 Inch : 10
2. After IC902 is replaced, warm up the TV for
10 seconds.
4-2 Factory/Service Mode
4-2-1 Procedure for the OAdjustment� Mode
1. This mode uses the standard remote control.4. Selection sequences for the PAL system:
The Service Mode is activated by entering the
DOWN or UP key:
following remote-control sequence :AGC>VCO>SBT>SCT>SCR>SC>RG>
(1) SLEEP? FACTORY. GG>BG>CDL>BLU>PSL>PVS>PVA>PHS
(2) STAND-BY? P.STD? HELP? SLEEP5. Selection sequences for the NTSC system:
? POWER ON.DOWN or UP key:
2. The OSERVICE (FACTORY)� message will beAGC>VCO>SBT>SCT>SCR>SC>RG>
displayed. The Service Mode has four compo-GG>BG>CDL>BLU>NSL>NVS>NVA>NHS
nents: Adjustment, Test Pattern, Option Bytes
6. The VOLUME keys increase or decrease the
and Reset.
adjustment values, (stored in the
3. Access the Adjustment Mode by pressing thenon-volatile memory when Adjustment Mode
OVOLUME� keys ( Up or Down). is cancelled).
The adjustment parameters are listed in the
7. Cancel the Adjustment Mode by re-pressing
accompanying table, and selected by pressing
the CHANNEL keys (s ,t ).the OFACTORY� or Power OFF.
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