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3-6. Adjust Specifications
[CP1 board (Side B)]
Note:
1. Oscillation frequency adjustment is necessary to repair in
the CP1 board and replace the parts.
2. Carry out the oscillation frequency adjustment with LCD
through image mode.
Preparation:
1. Remove the cabinet left and the sheild CP1, and the side B
of CP1 board can be seen.
2. Insert the SD card.
3. Set the main switch to the REC.
4. Press the power button, and comfirm that the through im-
age from CCD can be seen in the LCD.
1. IC501 Oscillation Frequency Adjustment
Adjustment method:
1. Adjust with VR501 to 797.7
±
1 kHz.
2. Iris Adjustment
1. Double-click on the DscCalDi.exe. (When setting Monitor in
the LCD ”Test”, LCD monitor can be seen.)
Measuring point is TP971.
2. Click the Hall Cal.
3. Repeat the third time “Open” and “Close” in the APERTURE.
4. Select “Open” in the APERTURE.
5. Adjust with GAIN to 3.00 V
±
0.01 V.
GAIN (ROUGH): “+1”
→
+100 mV, “–1”
→
–100 mV
GAIN (FINE): “+1”
→
+10 mV, “–1”
→
–10 mV
6. Select “Close” in the APERTURE.
7. Approximately half of the offset from 1 V is adjusted using
GAIN. For example for 1.2 V, GAIN can be used to adjust so
that (1.2-1.0) / 2 + 1.0 = 1.1 V.
GAIN (ROUGH): “+1”
→
–100 mV, “–1”
→
+100 mV
GAIN (FINE): “+1”
→
–10 mV, “–1”
→
+10 mV
8. Adjust with OFFSET to 1.00 V
±
0.01 V.
OFFSET (ROUGH): “+1”
→
+100 mV, “–1”
→
–100 mV
OFFSET (FINE): “+1”
→
+10 mV, “–1”
→
–10 mV
9. Select “Open” in the APERTURE. Check that the voltage is
3.00 V
±
0.03 V.
If the values are different, readjust from step 5.
10. Select “Close” in the APERTURE. Check that the voltage
is 1.00 V
±
0.03 V.
11. Click the OK.
Note:
If the GAIN and OFFSET values are changed, the voltage val-
ues at OPEN and CLOSE will change, so be sure to check that
the OPEN and CLOSE values are within the standard range.
Measuring Point
ADJ. Location
Measuring Equipment
ADJ. Value
CL518
Frequency counter
VR501
797.7
±
1 kHz
GAIN
+ 4
ROUTH :
+ 3
FINE :
OFFSET
– 4
ROUTH :
+ 3
FINE :
APERTURE
Open
Close
OK
Hall element calibration
x
Measuring Point
Measuring Equipment
TP971
Digital voltmeter
VR501
CL518
TP971
Firmware
Data
AWB
Focus
UV Matrix
RGB Odd
RGB Gain
Tint
RGB Even
VCOMDC
Phase
LCD
Calibration
Upload
Initialize
LCD Type
H AFC
Test
VCOMPP(LOW)
VCOMPP(HI)
Cal Data
Cal Mode
OK
OK
EVF
USB storage
Get
Set
VID
Set
PID
Set
Serial
Set
Rev.
Set
Setting
Language
Video Mode
VCO
Factory Code
Hall Cal.
Backrush pulse :
Set
Get
