Samsung VPL500 Service Manual page 22

4-2. Camera Section Adjustment
Note :
1. This system has :
1) EEPROM to store the confirmed adjustment data.
2) DSP (Digital Signal Process ; ICP01 - Main board) chip to process the signal of camera parts.
3) One test point for the frequency adjustment of DSP main clock (P. CLK).
4) The special mode for camera adjustment using the function keys on the left case.
2. Keep in mind :
1) All adjustment steps should performed using the function keys on the left case.
4-2-1 Preparations
1. Equipment to be used :
1) DC Power supply
2) Oscilloscope
3) Frequency counter
4) Vectorscope
5) Waveform monitor
6) Color monitor or TV
7) Various charts
- Color bar chart
- Gray-scale chart, etc...
4. The Function keys on the left case :
The following is a chart explaining the use of each button :
Using Button
PROGRAM AE (CONFIRM)
TITLE (DATA DOWN)
DSE (DATA UP)
FADE (MODE UP)
BLC (MODE DOWN)
MANUAL FOCUS RING (NEAR/FAR)
ZOOM TELE
ZOOM WIDE
Samsung Electronics
2. Composition of camera P.C.Boards :
1) Main PCB
3) CVF PCB
3. Adjustment preparations :
1) The function keys on the left case is used as a
camera adjust tool.
2) Press the confirm button when each manual
adjustment step is completed to write the
adjustment data to the EEPROM.
3) After each adjustment step is completed, OSD
shows "OK!".
4) To cancel the adjustment mode, remove the
power source.
Data store after finishing adjustment by DATA UP/DOWN button.
When change data value of adjust state.
Mode change.
Manual focus adjustment.
1) Move the zoom position of lens.
2) Semi-Auto lens adjustment.
Alignment and Adjustment
2) CCD PCB
4) EVF PCB
Adjustment
5) LCD PCB
4-3