Sanyo VPC-J4 Service Manual page 14

3-6. Adjust Specifications
[ST1 board (Side A)]
TB1 board
power
lead wire
Note:
1. Frequency adjustment is necessary to repair in the ST1
board and replace the parts. It is carried out with play mode.
Preparation:
1. Discharge a strobe capacitor in the ST1 board.
2. Connect the connector in the CP1 board and CN501 in the
ST1 board. Connect backlight lead wire to CN172 in the
CP1 board. (Refer to above picture.)
3. Set the main switch to playback mode in the CP1 board.
4. Input DC power from TB1 board.
5. Carry out assembling the camera after adjusting the
oscillation frequency .
1. IC501 Oscillation Frequency Adjustment
CL518
Measuring Point
Measuring Equipment Frequency counter
ADJ. Location VR501
496.5 ± 1 kHz
ADJ. Value
Adjustment method:
1. Adjust with VR501 to 496.5 ± 1 kHz.
VR501
CL518
Backlight
lead wire
ST1 board
CN501
CP1-ST1
connector
CP1 board
2. Lens Adjustment
Camera
Preparation:
POWER switch: ON
Adjustment condition:
More than A3 size siemens star chart
Fluorescent light illumination with no flicker
Illumination above the subject should be 400 lux ± 10 %.
Adjustment method:
1. Set the siemens star chart 150 cm ± 3 cm so that it be-
comes center of the screen.
2. Connect the camera and the computer with USB cable.
3. Select "CARD READER", and push the SET button.
4. Double-click on the DscCalDi.exe.
5. Click the Focus, and click the Yes.
6. Lens adjustment value will appear on the screen.
7. Click the OK.
DscCalDi
!
Adjustment value determination is effectuated using the "STD
AFPOS" and "FOCUS" values.
If FOCUS=focus1, focus2 and the adjustment values fulfill the
conditions below, they are determined as within specifications.
Adjustment value determination
985<=STD_AFPOS<=1055
-20<=focus1<=+15
-80<focus2<0
– 14 –
Approx.
150 cm 3 cm
Siemens
star chart
x
Focus Result
STD_AFPOS=1033
FOCUS=3,-36,0,0
OK