Sony BVU-800 - SECTION 1 OPERATION; 1-1. FEATURES

1-1 . FE AT URE S
Q u ick accessto
th
e e
d it p oi nts
Search fun ct i on s p rov i d in g
α recogn iz
ab
l e
picture in the
s hu tt l e m ode (in wh i c h t h
e
pl a y
bac
k
s
p
ee
d
ca n
be
var i ed
f ro m 1/30 to 10 t im es n or
m a
l
s p ee
d
in
bot
h f orward a nd
r everse) a n d t h e j og m ode (i
n wh
i
c h
t
h e pi
ct
u re m oves as
t h e searc h d i a l m o v es),
e
nab l
e
operators to
locate t h e e di t
p o in t m ore qui c kly . A l so in
t h e f
ast
f orward a nd r e w i nd
m ode, t h e ta p
e
is t hr ea ded
aro un d t h e dr um a nd α recog-
niz ab l e pi ct u re can be obta in
e
d
u s in g α t im e base correcto r .
Edit functions
In t
he asse m b l y ed i t m o d e, t h e v i deo, a u d i o c h a nn e l 1 a nd
cha nn e l 2 si g n a l s ca n be ed i ted s imul ta neo u s
l y .
In the insert
ed i t m od e, t h e v i deo, a u d i o cha nn e l 1 and c
h
a
nn el
2
s i gna l s
ca n be e di ted inde p e n de n t ly . Th e ed i t
m
ater
i
a
l
can
be vi ew-
ed be f ore a nd after record in g .
Front access
E very op erat i on , in clu d in g cassette
in
se
r t i on a nd re m ova l , is
p er fo rm ed f ro m t h e fr on t pane
l ,
w
hi c h can be t il te d to
indivi dua l 's p re f ere n ce up to 90 ° (6
ste p s) .
R emote control
W
h e n ed it ing u s ing two B VU -800 v i deo cassette recorders,
t
h e f ro n t pa n e l controls o f t h e recorder, wh i c h can be
detac
h
ed, ca
n
a
l
so
re m ote ly con tr o l t h e pla y e r .
Time cod e recording/playback f unction
Th
e ta pe h as α s p ec i a l c ha nn e l, t h e add ress trac k , w hic
h
a ll ows t h e S M P TE t im e co de to be
recor
d
ed a n d pl a y ed
bac k w i t h o u t sacr ifi c in g an a u d
i
o
c h a nn e l w i t h α t im e code
ge n erato r a n d reader .
02
(Phi
square)-servo loop circuit
Th
e
B VU -800
f eat ure preve n ts picture disturbances
("flagg in g"
or
"w hipping") at t h e ed i t po in t, s in ce it
e
n s u
res
pro p
er Η - ph ase a nd f ra m e ph ase a li g nm en t . Th e
Η - ph ase a
li g nm e n t is p er f or m e
d
au to m at i ca lly .
Capstan servo
T
h e
B VU -800
incorpo r ates α cap sta n servo c i rc ui t w hi c h
l
oc k s
on
to t
h e exter n a l si gna l .
F raming servo
Thi s ide n tifi es eac h e ven a ndo dd fi e ld in α g iv e n fr a m e, a n d
e n s ur es t
h
at
e
d
its occ ur p rec i se l y betwee n t h e e n d o f an
eve n fi e
l
d a
n
d t
h e
start
o f t h e n ext od d fi e ld, f or c l ea n ed i ts .
Direct drive system
with six DC motors
S i x
m otors
are
m o un ted i nde p e nd e n t l y
in t h e B VU -800 .
B
r u s hl ess D C m otor, d i rect l y
co upl ed w i t h t h e dr um
asse m b ly a n d n ew ly de v e l op
e
d b
ru s hl ess D C m oto r , is
e mpl oyed to t he ca p sta
n asse m b l y . S in ce t h e s uppl y ree l
a nd t h e take-up ree
l are
dr
iv en by t h e in de p e n de n t m otors
S E CTIO N
1
O PER ATIO N
a n d
t
h e
te
n si o n
on
t h e ta p e is prec i se l y set by α servo
s y ste
m ,
qui c k
access can be m ad e .
Digital time counter
Th
e
t im
e
counter
ind i cates t h e a m o un t o f ta p e adv a n ce-
m e n
t at
n
or
m al sp ee d i n hou rs, minu tes, seco nd s a n d
f ra m
es
by co un t ing t h e CTL si g n a l s . It ca n a l so in d i cate t h e
la p t im
e
o
f e
di t
ing .
Automatic/manual
video recor d ing systems
Syste
m p rov i des α c h o i ce o f e i t h er AUT O or M A NU A L
video r ecordi n g leve l co n tro l .
Audio system
Th e a udi o recording
a n d pl aybac k l e v e l s can be adj u ste d
se p arate l y . If n
ecessary, α li mi ter
can
be act i vated so t h at
vi rt u all y d i stort i on - f ree recordings of
s
ud
de n , very stro ng
i npu t si g n a l s can be m ad
e .
T
h e
C H -1
a nd
C
H -2 a u d i o s i gna l s
can be mi xed while record ing .
Editing/duplicating connectors
DUB IN a n d DUB
O UT co nn ectors per mi t e di ti n g a nd
dup licat ing o
f v
ideo
s i gna ls w it h litt l e degradat i on , eve n
ov er several ge
n erat i o n s .
Time
base corrector (TBC) connection
Th e B VU -800 is p rov ided w it h an exter na l s u bcarr i er
inpu
t co
nn ecto r (SC IN) a n d an exte rna l s yn c input
co nn ector ( ΕΧΤ SY N C IN) wh i c h allow it to be co nn ected
to α t im e base corrector . It is a l so poss i b l e to co
nn
ect an
exter n a l dro p o u t co mp en sato τ (
f
ro
m
α TB C,
etc .)
to
t h e
B VU -800's RFO UTPUT connector .
Α t im e base corrector
s u c h as α B V T -800 ca n be co nn
ected w i t h α mul t i -core
cab l e .
Auto r ewind/auto stop
A
u
to
r
ewi nd
fun ct i on a u to m at i ca lly rew in ds t h e ta p e to t h e
beginning
at
t h e e n d o f t h e ta pe . A u to sto p fun ct i on
a u to m at i ca lly sto p s t h e ta pe at t h e to p of t h e ta p e .
Indicator lamps
T
h ese
la
mp s are co nv e ni en t ly l ocated on t h e f ro n t pa n e l ,
n ot
if
y
in
g t h e
op
e r ator o f t h e cond i t i on s o f t h e f ra min g
servo loc k , o f in ter n a l m o i st u re con de n sat i on , t im e code
recor
din g/ pl
a
y bac
k a n d o f
t
h e op erat i on
of
t h e ca p sta n and
dr
um servo loc
k .
Plug-in boar d s and modules
Plu g-
in
boards a nd m o dul es are des i g n ed f o r t h e ease o f t h e
serv i ce a n d maintenance by s imply removing t h e to p p a n e l .
M ountable in standar d 19" rack
Th e B VU -800 is m oun tab l e in α sta n dard ΕΙΑ 19" rac k .