4-10
SSC-DC132P/134/134P/138P
4-5-5. Checking AGC Adjustment
1.
Turn OFF the CCD-IRIS switch on the rear panel of
the camera.
2.
Shoot the all-white pattern and adjust the lens iris so
that the VIDEO OUT image level is the specified
value.
Subject
All white pattern
Measurement point
Image level of VIDEO OUT
Equipment
Waveform Monitor
Specification
100
±
2 IRE (NTSC)
700
±
15 mV (PAL)
3.
Set the ND filter (transmission factor: 6.25%).
4.
Shoot the all-white pattern. Check to see if the VIDEO
OUT image level is within the specified value range.
Subject
All white pattern
Measurement point
Image level of VIDEO OUT
Equipment
Waveform Monitor
Specification
65
±
5 IRE (NTSC)
455
±
35 mV (PAL)
n
If there is a point where the specified value for step 4
is satisfied while varying the lens iris within the
specified value range for step 2, the adjustment is
correct.
Or, if there is a point where the specified value for step
4 is satisfied while varying the IRIS LEVEL on the
rear panel, the adjustment is correct.
4-5-3. Checking SET UP Adjustment
Check to see if the measured voltage is within the specified
value range.
Subject
Free
Measurement point
SET UP level of VIDEO OUT
Equipment
Waveform Monitor
Specification
7.0
±
2.0 IRE (NTSC)
20
±
15 mV (PAL)
Lens opening
Close
4-5-4. Checking 0 dB Adjustment
1.
Turn OFF the CCD-IRIS switch on the rear panel of
the camera.
2.
Shoot the all-white pattern and adjust the lens iris so
that the CCD LEVEL is the specified value.
Subject
All white pattern
Measurement point
DCP Board CN302.1 pin
(CCD LEVEL)
Equipment
Oscilloscope (AC 50 mV, 10
µ
s)
Specification
250
±
20 mV
3.
Check to see if the A/D IN value (CN302.2 pin) is
within the specified value range.
Subject
All white pattern
Measurement point
DCP Board CN302.2 pin (A/D IN)
Equipment
Oscilloscope (AC 200 mV, 10
µ
s)
Specification
860
±
40 mV
n
If there is a point where specified value for step 3 is
satisfied while varying the iris within the specified
value range for step 2, the adjustment is correct.
