Sony BVH-2000, Operation And Maintenance Manual

Page: 271 / 505

SECTION 5
THEORY OF OPERATION
GENERAL DEseR
high-band FM recording.
For the Video signal, the VIDEO/SYNC PLAY heads
are provided in addition to the R/P head, also a AUDIO/
CTL MONITOR head is provided for the AUDIO signal as
an option at the factory, and confidence operation (simul-
taneous recording and playback) made to be possible. The
PLAY (Dynamic head.
the
of
used
Noiseless is possible to -1 to +3 normal
speed by the Dynamic Tracking function. When the BKH-
2013 Control Panel Type-3 is used, the playback speed
ranging from
-1
to +3 times normal speed can be freely
controlled by the Variable Memory function.
used at the supply reel,
motors, motors
to
and
considering combinations.
A SERVO/SYSTEM alarm lamps (RED) on the func-
tion control panel are lit when
*
The data transmission between the system control
and servo CPUs are disturbed.
*
The motor drive circuits become overheat.
*
The threading is incorrected.
The drum does rotate STANDBY
The defective.
*
The becomes abnormal.
*
The capstan servo is not locked in the record or
the playback modes.
REEL SERVO
CAPSTAN SERVO
CPU DATA BUS
When performing the tape threading or cleaning
around the tape path, entrance and exit guides of the rotary
head drum, VIDEO/SYNC erase head and audio head cover
can be moved automatically by the Movable Guide System.
Optional accessory BKH-20 15 A is a Time Code
Generator/Reader consisted of one board. The LTC (Longi-
tudinal Time Code) or the VITC generation/reading as well
as character generator are composed. An mechanical tape
timer or CTL-corrected timer signals generate
read to (83-4) on
DRUM SERVO
PROGRAMMABLE FEEDBACK PHASE COMPENSATOR
DIGITAL INTERFACE FOR SPEED Sf:
nvo
BVH-2000( U/C)/PM
BVH-2180( U/C)/PM
z
o
~
«
cc
w
a,
o
LL
o
>-
cc
o
w
I
I-
u1