Samsung VP-A20, Руководство по обслуживанию

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Alignment and adjustment
5-2 Samsung Electronics
5-2 Camera Section Adjustment
Note :
1. This system has
1) EEPROM to store the confirmed adjustment data.
2) DSP (Digital Signal Process ; ICP04 - Main board) chip to process the signal of camera parts.
3) One test point for the frequency adjustment of DSP main clock (P. CLK).
2. Keep in mind
1) Readjustment is needed when the EEPROM (ICP10 of Main board) is replaced.
The reason is that EEPROM stores confirmed adjustment value of each adjustment step.
5-2-1 Preparations
1. Equipments 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...
8) Alignment tape (Lion pattern)
2. Composition of camera P.C.Boards
1) Main PCB 2) CCD PCB
3) EVF PCB 4) CVF PCB
3. Adjustment preparations
1) Press the confirm button when each manual
adjustment step is completed to write the
adjustment data to the EEPROM.
2) After each adjustment step is completed, OSD
shows ÒOK!Ó.
3) To cancel the adjustment mode, remove the power
source.
4. Rear Board
The following is a chart explaining the use of each button :
Using Button
START/STOP(CONFIRM)
- (DATA DOWN)
+ (DATA UP)
BLC (MODE UP)
FADE (MODE DOWN)
DATE (FAR )
TITLE (NEAR)
Adjustment
Data store after finishing adjustment by DATA UP/DOWN button.
When changing data value of adjust state.
Mode change.
Focus adjustment.