4-4
CCU-TX7 (E)/V1
4-2-3. H Phase Adjustment
Equipment
:
Oscilloscope (CHOP mode)
Video signal generator
(Color Bar signal)
To be extended :
ES-20 board
Preparation :
.
Gen-lock .
.
Input color bar signal of video signal generator to the
GENLOCK connector on the CCU-TX7/TX7P.
Test point
:
CH1 pin 78 (GND : pin 77)/
extension board
CH2 pin 100 (GND: pin 99)/
extension board
Adjusting point :
1
RV7 (H PHASE)/ES-20 board
Adjustment Procedure :
1. Adjust
1
RV7 (H PHASE)/ES-20 board so that the width
T1 is 0
±
0.1
µ
s.
4-2-4. SYNC Phase Adjustment
Object
:
Overall white
(white portion of the pattern box)
Equipment
:
Waveform monitor
To be extended :
ES-20 board
Preparation :
.
Adjust the zoom control at "TELE" so that the white pattern
feame matches the underscanned picture frame on the
screen.
.
In case of RCP-TX7
IRIS AUTO Button (Control panel)
→
"ON"
.
In case of COU-TX7
IRIS AUTO/MANUAL switch (Control panel)
→
"AUTO"
Test point
:
VBS 1 OUT connector/CCU rear panel
Adjusting point :
1
RV2 (SYNC PHASE)/ES-20 board
1
RV3 (SYNC WIDTH)/ES-20 board
1
S2 (H BLKG)/ES-20 board
Specification
:
[For NTSC]
T1 = 1.35
±
0.1
µ
s (
1
RV2)
T2 = 4.7
±
0.1
µ
s (
1
RV3)
T3 = 10.9
±
0.1
µ
s (
1
S2)
[For PAL]
T1 = 1.55
±
0.1
µ
s (
1
RV2)
T2 = 4.7
±
0.1
µ
s (
1
RV3)
T3 = 12.0
±
0.1
µ
s (
1
S2)
50%
Pin 78
(CH-1)
Pin 100
(CH-2)
T1
T2
T3
4IRE
50%
T1
20IRE
20IRE
T2
T3
50%
T1
350mV
350mV
[For NTSC]
[For PAL]
