2-7 (E)
CA-702
CA-702P
2-4. AD-150/P Board Adjustment
2-4-1. 8Fsc VCO Adjustment
This adjustment is for the AD-150 board with board suffix -12 or higher.
Preparations
1.
Connect each equipment referring to 2-1-3, “Connection - AD Adjustment.”
2.
Set the power switch of CA to OFF and extend the AD-150/P board.
3.
Warm up for approximately ten minutes in the procedure below before performing the adjustment.
(1) Set the SDI/COMPOSITE switch on the outside panel of CA to COMPOSITE.
(2) Set the power switch of CA to INPUT and the power switch of a camcorder to ON.
(3) Confirm that the “EXT” display blinks in the viewfinder of a camcorder and warm up for
approximately ten minutes.
4.
Video signal generator
8
75% color-bar signal (setup 7.5% for NTSC)
5.
S1/AD-150/P (AGC)
8
OFF
Adjustment Procedures
m
.
Perform this adjustment in the color-locked state
*
.
*: The color-locked state means that the internal 8-fsc VCO is PLL-locked with the burst signal of the external input signal and the
color signal is properly produced.
.
If the variable resistor is improperly aligned, the unit may lose color-lock. In this case, turn the variable
resistor slowly until the unit is color-locked.
.
Turn the variable resistor very slowly, or the unit may lose color-lock.
Equipment:
Digital voltmeter
Test Point:
TP3/AD-150/P, GND: E2/AD-150/P
Adjustment Point:
1
RV13 (VCO ADJ)/AD-150/P
Specifications:
+
1.70
±
0.01 V
2-4. AD-150/P Board Adjustment
2-4-1. 8Fsc VCO Adjustment
E2
FL1
FL2
FL3
FL4
FL5
FL6
FL7
FL8
RV1
RV3
RV5
RV7
RV8
RV9
RV10
RV12
RV13
S1
TP1
TP2
TP3
TP4
TP5
TP6
1
2
3
A
B
C
D
E
CN1
AD-150P BOARD (A SIDE)
E2
FL1
FL2
FL3
FL4
FL5
FL6
FL7
FL8
RV1
RV2
RV3
RV4 RV5
RV6 RV7
RV8
RV9
RV10
RV11
RV12
RV13
S1
TP1
TP2
TP3
TP4
TP5
TP6
1
2
3
A
B
C
D
E
CN1
AD-150 BOARD (A SIDE)
