3-20
BRC-300/300P
BRU-300/300P
H
A
Center of luminance line
3-2-8. 66 MHz/54 MHz Origin Oscillation
Adjustment
Set the frequency of the clock for synchronization.
If the following specified value is not satisfied, the syn-
chronization will be disrupted and the color will become
inconsistent.
Subject
Arbitrary
Measurement point
VC-343 board, pin 6 of IC503
Measuring instrument
Frequency counter (through the
oscilloscope)
Adjustment page
F
Adjustment address
10
Specification
f = 33000000
±
165 Hz (NTSC)
f = 27000000
±
135 Hz (PAL)
m
.
The data of page: 0, address: 10 must be “00”.
.
Connect the equipments as shown in the figure.
.
Terminate the probe of the oscilloscope with 75
Z
.
Adjusting procedure
Order Page Address Data Procedure
1
0
01
01
Set the data.
2
F
10
Change the data to satisfy the
specification f.
3
F
10
Press PAUSE button.
4
0
01
00
Set the data.
3-2. BRC-300/300P Camera Block Electrical Alignment
Probe
75
Z
terminator
Oscilloscope
Frequency counter
64
49
17
32
1
16
48
33
IC503
VC-343 board
3-2-9. Video System Adjustments
m
.
Perform this adjustments after performing “3-2-8. 66
MHz/54 MHz Origin Oscillation Adjustment”.
.
Check that the data of page: 0, address: 10 is “00”. If
not, set data: 00 to this address.
.
Terminate the probe of the oscilloscope with 75
Z
.
Y Output Level Adjustment
Mode
Camera
Subject
Arbitrary
Measurement point
DD-208 board, pin 6 of CN151
(75
Z
terminated)
Measuring instrument
Oscilloscope
Adjustment page
C
Adjustment address
25
Specification
Y output level: A = 1000
±
14 mV
Adjusting procedure
Order Page Address Data Procedure
1
0
01
01
Set the data.
2
3
0C
02
Set the data, and press
PAUSE button.
3
C
25
Change the data to satisfy the
specification A.
4
C
25
Press PAUSE button.
5
3
0C
00
Set the data, and press
PAUSE button.
6
0
01
00
Set the data.