Samsung VP-D20, Service Manual

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Alignment and Adjustments
Samsung Electronics
2-1
Note : How to adjust the camera system.
1) EEPROM stores confirmed adjustment value of each adjustment step.
2) DSP (Digital Signal Process : ICA01-Camera Main PCB) digitalizes the camera signal.
3) When changing IC705-Main PCB of EEPROM, readjust Main PCB.
While changing LCD PCB and CVF PCB- always readjust each part.
Since EEPROM stores confirmed adjustment value of each adjustment step, readjusting must be performed in order
to store the changed data.
4) Adjust the following items after changing LENS Ass’y.
Œ
Lens Zoom Track
´
Auto HALL
ˇ
Auto IRIS
5) Adjust the following items after changing EEPROM and Main PCB.
Œ
Lens Zoom Track
´
Zoom VR Center
ˇ
Auto HALL
¨
Auto IRIS
ˆ
Auto White Balance (indoor)
Ø
Auto White Balance (outdoor)
2-1 Adjustment Preparation
1) Measuring Instrument
ΠDC power supply
´ Oscilloscope
ˇ NTSC Vectorscope, PAL vectorscope
¨ NTSC wave form monitor, PAL wave form monitor
ˆ
NTSC TV or Monitor, PAL TV or Monitor
Ø Color bar chart
Gray scale chart
2) Camera PCB configuration
ΠMain PCB
´ CCD PCB
ˇ LCD PCB
¨ CVF PCB
3) Before you start
ΠUse the buttons on the SET key when adjusting camera.
´
Press the push the “ENTER” when storing confirmed adjustment value of each adjustment step in
EEPROM.
ˇ The OSD shows “OK” after finishing each adjustment step.
¨ To clear the adjustment mode, pull out the power source.
2. Camera Adjustment