Table of Contents
Advertisement
3-7. PROMPT VIDEO Cable Compensation System Adjustment
3-7-5. RX PROMPT VIDEO Level Adjustment
Rank:
B
Note:
When adjusting this step, the length of
triaxial cable is required less than 500 m.
Adjustment of BVP-700/700P must
be completed.
Equipment:
Oscilloscope,
Video signal generator (10 STEP signal)
To be extended:
DM-94 board
Preparation
• S4 (CCU → CAM/CAM → CCU)/
MD-83 board (BVP side) → "CAM → CCU"
• Remove the green harness of MPX filter from CN35
(PROMPT) connector on DM-97 board (BVP side).
And connect its harness to CN27 (PROMPT
REVERSE)/MB-430 board (BVP side).
• S5 (TX← → RX)/
DM-94 board (CCU-700A/700AP) → "RX"
• S6 (TX← → RX)/
DM-94 board (CCU-700A/700AP) → "RX"
• S1 (MODE AUTO/MAN)/
DM-94 board (CCU-700A/700AP) → "AUTO"
• PROMPT OUT/rear panel → Disconnect 75 Z termination
• Feed the 10 STEP signal from the video signal generator
to PROMPTER connector (camera side panel).
Adjustment Procedure
• Adjust 1RV23 (PROMPT LEVEL)/DM-94 board so
that the video level at pin D34 (GND: pin C34)/exten-
sion board is 2.00 ±0.05 V p-p.
Note: After the adjustment, set the switches as follows.
• S4 (CCU → CAM/CAM → CCU) switch/
MD-83 board (BVP side) → "CCU → CAM"
• Return the green harness of MPX filter to CN35
(PROMPT) connector on DM-97 board (BVP side).
• S5 (TX← → RX) switch/DM-94 board → "TX"
• S6 (TX← → RX) switch/DM-94 board → "TX"
• Remove the BNC cable from the PROMPTER
connector/CCU rear panel.
3-38
E15
RV19
RV20
TP20
E11
CV1
2.00+0.05 Vp-p
–
*
TP21
TP21
E14
DM
(PANEL SIDE)
E9
TP18
E6
TP12
RV16
RV8
E5
TP16
TP26
RV7
RV15
TP10
TP15
RV6
E10
TX
E8
TP9
S5
RV24
RX
RV3
TP6
RV11
RV5
RV21
TP8
TP14
E12
RV4
RV2
TP5
ON
TP7
*
S4
TP4
E2
TP22
CV3
LV1
TP2
TX
TP13
CV2
TP3
S6
E7
LV2
RX
ON
RV1
S3
TP22
E13
Y AGC COUNT
E1
RV22
LV3
RV23
E3
TP17
RV9
RV17
TP19
RV12
TP11
-
5
+12
-
12
+5
-
-
Y
R
Y
B
Y
Y
GND
-
R
Y
-
B
Y
DM-94 BOARD (COMPONENT SIDE)
TP23
RV18
TP24
E16
TP25
RV14
RV13
RV10
TP1
E4
S1
MAN
AUTO
S2
CABLE
LENGTH
SUFFIX-12 ONLY
*
CCU-700A
CCU-700AP
Advertisement
Table of Contents
