Checking Set Up Adjustment; Checking 0 Db Adjustment; Checking Agc Adjustment - Sony SSC-DC132P Service Manual

4-5-3. Checking SET UP Adjustment

Check to see if the measured voltage is within the specified
value range.
Subject
Measurement point SET UP level of VIDEO OUT
Equipment
Specification
Lens opening

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
Measurement point DCP Board CN302.1 pin
Equipment
Specification
3. Check to see if the A/D IN value (CN302.2 pin) is
within the specified value range.
Subject
Measurement point DCP Board CN302.2 pin (A/D IN)
Equipment
Specification
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.
4-10
Free
Waveform Monitor
7.0 ± 2.0 IRE (NTSC)
20 ± 15 mV (PAL)
Close
All white pattern
(CCD LEVEL)
Oscilloscope (AC 50 mV, 10 µs)
250 ± 20 mV
All white pattern
Oscilloscope (AC 200 mV, 10 µs)
860 ± 40 mV

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
100 ± 2 IRE (NTSC)
Specification
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
65 ± 5 IRE (NTSC)
Specification
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.
700 ± 15 mV (PAL)
SSC-DC132P/134/134P/138P