Sony BVH-2000, Operation And Maintenance Manual

Page: 290 / 505

This board is composed of the PB RF and REC RF amplifiers
for heads erase oscillators VIDEO/
SYNC erase heads.
In the recording mode the RF VIDEO/SYNC
signal from the
MD board is amplified and supplied to
RIP
head
Srmultaneousty, the erase are activated
to drive the rotary erase heads. In the playback mode, the PB RF
signals from the VIDEO/SYNC
heads are amplified and output
to the EQ board
=S-
RY 1 2
POWERSWON~
REC RELAY
I I
: R
ERASE SYNC__..-0-----GIot
I ______ - ---.I
1.
Outline
This board is configured with video input! output amplifiers and
buffers.
It also functions to select the signals which are output to
the WFM MONITOR OUTPUT and the MONITOR
OUTPUT connectors and superimpose characters from the
time code generator/reader onto the VIDEO MONITOR
OUTPUT signal.
eN - 37
BOARD
VM - 01
BOARD
CONNECTOR PANEL VIDEO BUFFER/MONITOR
TC,38A CHARACTERSIGNAL
TC,38B CHARACTER GATE
4 CN6576
MS
BOARD
MONITOR SE~CTOR
PICTURE
MONITOR
8,CN655
I
0 VIDEO
O-----~--.j MON I TOR
SELECT
<:r------~-I
CONTROL
1O,CN657
4,CN658
WFM CTL
--..¢----------+-----+------~
I I
RF ENV CN657,12
CN657,1O
SPARE-~~-----~-__+_-__+------~
CN654,8
DEMOD OUT2
----{>--------+---4.--------t
CN654,1
VIDEOOUT2
6,CN655
DEMOD
-_ .... _-~~ TBC OUT-2(NON COMP)--~---------------~ .. -~KH
CN654,6
1,CN655
CN652,4
6,CN653
75fl
n
l
ON/OFF
LlJ
CN-37 BOARD
CN-37BOARD
BVH-2000{U/C)/PS/PM
BVH-2180(U/C)/PS/PM 5-4-9
VIDEO SIGNAL SYSTEM
VIDEO
RIP
SYNC
R/P
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