Prompt Video Level Adjustment - Sony BVP-500 Maintenance Manual

5-24-16. PROMPT VIDEO Level Adjustment

Notes :
• Remove the CN-1232 board in advance referring to
section 5-24 "Notes".
• This adjustment is necessary only when replacing the
DM-99 board.
• Use a TRIAX cable whose length is 500 m or more for
this adjustment.
Equipment : Waveform monitor, Video signal
generator (provides a 10-step signal)
Preparations:
• CCU-700/700P/700A/700AP setting
S1 (MODE AUTO/MANU)/DM-94 (P-1) →AUTO
S5 (PROMPT POWER SELECT)/DM-94 (G-8) →TX
S6 (PROMPT RF SELECT)/DM-94 (M-8) →TX
• Feed the 10-step signal from the video signal generator
to the PROMPTER connector on the CCU rear panel.
Test Point : PROMPT connector/BVP-500/500P
Adjustment Points : 1RV2 (PROMPT LEVEL) /
DM-99 (G-3)
: A = 1.00 ±0.05 Vp-p
Specifications
Resetting after Adjustment:
• S1, S5, S6/DM-94 →customer-set position
H G F
1
2
E1
TP1
3
RV2
RV1
4
5
DM-99 BOARD (A SIDE)
BVP-500
BVP-500P
H rate
E D C B A
LV2
LV1
5-24. Video Modulation/Demodulation Adjustment
5-24-16. PROMPT VIDEO Level Adjustment
5-45