Samsung CFT27918X/SMS, Руководство по обслуживанию

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Alignment and Adjustments
Samsung Electronics 4-5
4-8 Factory Adjustment
1. To enter the “Service Mode”, Press the remote-control keys in this sequence :
- If you do not have Factory remote-control
- If you have Factory remote-control
2. After the Service Mode is entered, the initial screen is as shown in the figure below.
*
Service
Deflection
Video Adjust 1
Video Adjust 2
Video Adjust 3
Option
Reset
G2-Adjust
Others
VDP Verision : Y
3. Use the Channel Up/Down buttons to move the cursor in the adjustment parameters.
- When CRT, CRT PCB, FBT, E
2
PROM (sometimes MICOM) is replaced, the adjustment values
should be controlled.
- After the Service adjustment is completed, Do not select “Reset” in the service mode menu.
(After above procedure is done, power is on initially and the “Plug and Play” will be operated.)
PICTURE OFF PICTURE ON
MUTE
Keys Number
1,8,2
PICTURE ON
DISPLAY ( )
FACTORY
4-8-1 Service Mode
* These hexa digits are check sum value which
depends on the MICOM.
If check sum value is changed, the value of
E
2
PROM Data newly initialed.
Note 2.
- When E
2
PROM (IC902) and Micom are replaced at the same time :
1. After the Factory Mode is entered, check the VDP version in the service list.
2. Set the version so that the VDP version is identical with the video chip (IC201S)
3. After all settings are completed, adjust the service value of each mode to its default.
4. Refer to “Service Manual” for factory value.
5. Check the version
a. Check the VDP version “Y” in the Factory Mode.
b. Version Mode : “Y”, “B” from IC201S(Video Chip) VDD3130”Y”
VDD3112”B”, VDD3108”B”
Note 3.