Sony BVU-950 - Page 18

- Magnet tirgs, with <8 magnets,
Tape and Tape Tension Detector
Cds photo-
The detector bridge
(slit plate) is
moved according
to tape tension.
® A. slit plate
tcope
Tape Tension Detector
Coes slit plate
>
—L.
\ max. 0.6 mm
Cerecting
tape guide
spring
~ / \
LEO bracket
Reei Table Rotation Detector
DC pewer
A . Veep OUTPUT
re OME CH-2 =en eeres. l00eVve-— CETP
a dents
|
- DME cements are located clase to the real
teple end maunted on the SE-4§ beard. CH-1
end CHe2 cumputss are phrase-shiited Dy 30
dsarrees.
provided on the real table
1 CH: $5 cyeies/retation
Note: DME is abdbrewvretion [or Divided
Megacttoerascuve Llawnat.
4-2
Cds Photo-bridge Pattern
Slit (Moved according
to jhe tape tension.)
Tension detector
(plate spring)
XN ' ,
too-
4
~
]
/
t
\
\
‘
‘
8
~~
T
TT
ET
---¥---;
re
w
woe
=
Ps
=
Photoc onductor
(cds)
Pin 3 Pin 1
+tI2V
aT
ec
a
“S.
. &
Pin 2 1 “ee
cds output
Construction of Tape Tension Detector
Plate spring (slit)
| Pin 1
tt
|| Moved |
Pin 2 output
I
| Pin 3
Equivalent Circuit of Cds Photo-bridge
Pin 1
Pin 2
Pin 3