Confirmation; Confirmation Of 0 Db Adjustment; Selection Flow Of Required Items For Adjustments Of 0 Db And Color Reproduction - Sony SSC-M183 Service Manual

2-1-4. Selection Flow of Required Items for
Adjustments of 0 dB and Color
Reproduction
Start selection.
Replace R-2001 board.
No
Confirm 0dB
and color reproduction and
check if they are within
specifications.
No
Make adjustment.
Adjustment is completed.
SSC-M183/M183CE/M188CE/M383/M383CE/M388CE
SSC-DC193/DC193P/DC198P/DC393/DC393P/DC398P
Yes
Confirmation and adjustment
are not required.
Yes
Adjustment is not required.

2-2. Confirmation

2-2-1. Confirmation of 0 dB adjustment

1. Set the AGC and CCD-IRIS switches on the rear panel
of camera to OFF.
2. Shoot the image of 100% white pattern and adjust the
lens aperture so that the CCD LEVEL meets the
specification.
Subject 100% white pattern
Measuring point PC-2001 board CL201 (CCD LEVEL)
Measuring equipment Oscilloscope (AC50 mV, 10 µS)
250 ± 20 mV
Specification
3. Confirm that the A/D IN (CL202/PC-2001 board) is
within the range of specification.
Subject 100% white pattern
Measuring point PC-2001 board CL202 (A/D IN)
Measuring equipment Oscilloscope (AC200 mV, 10 µS)
Specification 800 +60
_20
n
When there is a point that meets the specification of 3 after
adjusting the lens aperture within the range of specification
of 2, this means that the adjustment is correctly made.
mV
2-3