Sony BVH-2000, Operation And Maintenance Manual

Page: 169 / 505

Mechanical Brake
31. Adjust the mechanical brake torque as follows.
CD
Set the 9-inch empty reel onto the S reel table.
CD
Turn
CD
Set S4 (TEST-I) switch on the CD-17 board to ""4". and
REV and FWD torque as follows.
Note: characteristic of is in
material of the reel-table cylinder and the material
Before performing the adjustment, check the
material of the cylinder. (See item D in the
(i)
FWD (CCW) brake torque:
depress S7 (ENTRY) switch for at least 0.5 sec. When
the rotation of the reel has stopped, check that the
Fig. 3-24. If necessary, change the mounting position
the adjustment
(ii) REV(CW) brake torque:
Set S5 (TEST-2) switch on the CD-17 board to "B" and
the rotation of the reel has stopped. check that the
NDI SV-43 board indicates the value shown in
3-24. necessary, the mountmz
of the adjustment spring (REV ICW).
by pushing S7 for at least 0.5 sec.
CD-17 BOARD
@
@
FWD (CCW) BRAKE
I
TORQUE ADJ.
I
Decrease
o
SV-43 BOARD
ND1
ND1 (hexa-decimal display)
surface treatment
switch
position
switch
position
tape running
(reel rotation)
A 4
(CCW)
(46 to 54)
1 3
(14 to 1A) (07 to 1D)
4
B
(CW)
3·24. Brake Torque
Fig. 3-25. S Reel Brake Torque Adjustment
BVH-2500(U/C)/P
ill
U
Z
«
z
ill
I-
Z
~
2
o(j
:::L
U
ill
I
U
U
o
o
0:
ill
0..