2-5 (E)
CA-702
CA-702P
2-3-2. DEC VCO Free-run Frequency Adjustment
Preparations
1.
Set the power switch of CA to OFF and extend the DIF-67 board.
2.
Warm up for approximately ten minutes in the procedures below before performing the adjustment.
(1) Set the SDI/COMPOSITE switch on the outside panel of CA to SDI.
(2) Set the power switch of CA to OUTPUT and the power switch of a camcorder to ON.
(3) Warm up for approximately ten minutes.
3.
S1-4/DIF-67 (ENC VCO ADJ)
8
ON
4.
Connect each equipment referring to 2-1-3, “Connection - VCO Adjustment.”
Adjustment Procedure
Equipment:
Frequency counter, Oscilloscope
Test Point:
TP3/DIF-67,
GND: E2/DIF-67
Adjustment Point:
1
RV2 (VCO ADJ2)/DIF-67
Specifications:
27.0
±
0.1 MHz
Note in Finishing Adjustment
.
S1-4/DIF-67
8
OFF
CN1
D2
D3
E1
E2
TP7
RV3
RV1
RV2
S1
TP1
TP2
TP3
TP4
TP102
TP5
4
3
2
1
A
B
C
D
E
F
G
DIF-67 BOARD (A SIDE)
2-3. DIF-67 Board Adjustment
2-3-2. DEC VCO Free-run Frequency Adjustment
