Sony BVW-55 Maintenance Manual page 358

5-4. Tape Running Check and Adjustment
4. F FWD mode check (At the beginning
portion of the tape)
(1) Put the unit into the F FWD mode.
(2) Check the tape running condition satisfies the
specification 2.
5-16
[Drum entrance side]
Impedance roller
Tape curl could not
Full-erase
be acceptable
head
S4 S3
S tension regulator
[Drum exit side]
Impedance roller
Tape runs in contact
with the upper flange
T1 T2
Tape runs in contact
with the lead
Upper flange
Curl
Tape
Spec. 2: (F FWD mode at the beginning portion of the tape)
[Drum entrance side]
. S2 guide
Tape runs in contact with the upper flange.
. S3 guide (S tension regulator guide)
Tape runs without contacting the upper and lower flanges.
If the tape runs in contact with the upper or lower flange, tape curl is
acceptable within the range of less than 1/10 of the tape width.
. S4 guide
Tape runs without contacting the upper and lower flanges.
Even if the tape runs in contact with the upper or lower flange, tape curl
could not be acceptable.
[Drum exit side]
. T2 guide
Tape runs in contact with the upper flange.
. T3 guide (T drawer guide)
Tape runs in contact with the lower flange.
If tape curl occurs, tape curl is acceptable within the range of less than
1/10 of the tape width.
. T4 and T5 guides
Tape runs without contacting the upper and lower flanges.
Even if the tape runs in contact with the upper or lower flange, tape curl
could not be acceptable.
. T6 guide (T tension regulator guide)
Tape runs without contacting the upper and lower flanges.
If tape runs in contact with the upper or lower flange, tape curl is
acceptable within the range of less than 1/10 of the tape width.
. T7 guide
Tape runs without contacting the upper and lower flanges.
Even if the tape runs in contact with the upper or lower flange, tape curl
could not be acceptable.
Tape cleaner
Tape runs in contact
CTL
with the upper flange
head
S2 Drum
S1
Tape runs in contact
with the lead
Tape curl could not
Tape curl could not be acceptable
be acceptable
Capstan
AT
T3 T4 T5 T6
head
T tension regulator
Tape curl is acceptable within
the range of less than 1/10 of
the tape width
Lower flange
T7
BVW-55 P2