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Adjustment Method; Preparations For Adjustment; Writing In Initial Data; Pre Adjustment - Sony DXC-190 Service Manual

Color video camera dxc-190
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4-2. Adjustment Method

4-2-1. Preparations for Adjustment

(1) Setting switches:
. Set the Mode switch on the rear panel of the camera
to B position.
. Set the DIP switches on the side panel of the camera
to shown as below.
OFF
NORM
OFF
OFF
0
WHT BAL
0
NORM
0
. Slide the sliding switch (HOLD) in the upper part of
the commander to the right side.
(2) Turn on the camera.
(3) Connecting the Commander:
Use a interface tool to connect the commander to the
connector (CN201) on the PR-229 board so that the
interface tool will have Pin 1 (white) coincide with Pin
1 (on the front panel side) of the connector.

4-2-2. Writing in Initial Data

(1) Press the START/STOP button in the upper part of the
commander.
(2) The numerals indicated on the LCD of the commander
will go out for a few seconds and then will reappear.
* In this stage, if the commander's LCD display
remains out and cannot be restored, there is an
abnormality somewhere in the circuitry. Do not
proceed to adjustment without correcting the
abnormality.
If writing in initial data has been performed, be sure to
confirming data as follows.
(3) Press the MODE DISPLAY CHANGE button on the
commander to display Mode "5F". Subsequently, press
the CHANGE DATA button to display Data "01".
(4) Press the DATA write button of the commander.
(5) The numerals indicated on the LCD of the commander
will go out for a few seconds and then will reappear.
4-4
AGC
TURBO
BLC
SHUTTER
1 - A
1 - B
SHARP
180

4-3. PRE ADJUSTMENT

4-3-1. 28MHz Adjustment

Subject
Free
Measurement point
PR Board TP201
Equipment
Frequency Counter
Adjustment point
PR Board CT201
Adjustment value
28.636363 MHz 80 Hz
Adjustment procedures
Operate an internal SYNC mode.

4-3-2. VCO Adjustment

Subject
Unnecessary
Oscilloscope
Measurement point
(DC 500 mV, 0.2 uS)
Equipment
PR Board TP203
Adjustment point
PR Board CT202
Adjustment value
1.7 0.1 V
Input the external sync signal to
Adjustment procedures
the VS IN connector.

4-3-3. fsc Adjustment

Subject
Free
Measurement point
PR Board TP202
Equipment
Frequency Counter
Adjustment point
PR Board CT203
Adjustment value
3.579545 MHz 20 Hz
Input the external SYNC signal
Adjustment procedures
without Burst signal to VS IN
connector

4-4. Camera Adjustment

4-4-1. Setting up the Prepare for Adjustment
Mode
1 Press the MODE DISPLAY CHANGE button on the
commander to display Mode "5F". Subsequently, press
the CHANGE DATA button to display Data "01".
2 Press the MODE DISPLAY CHANGE button on the
commander to display Mode "61". Subsequently, press
the CHANGE DATA button to display Data "01".
Subject
Unnecessary
Measurement point
Nothing
DXC-190

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