Sony HDW-750 Maintenance Manual page 428

8-2. Tape Run System Adjustment
Drum exit side
Check Procedure
1. PLAY state (tape top portion)
Enter the PLAY state using a tape top (from 01 :
00 to 05 : 00) of the cassette tape BCT-40HD.
Check to see that tape runs while satisfying the
specification 2.
If the specification 2 is not satisfied, perform step
8 and higher.
2. F FWD state (tape top portion)
Enter the F FWD state using a tape top (from 01 :
00 to 05 : 00) of the cassette tape BCT-40HD.
Check to see that tape runs while satisfying the
specification 2.
If the specification 2 is not satisfied, perform step
8 and higher.
3. REW state (tape top portion)
Enter the REW state using a tape top (from 01 :
00 to 05 : 00) of the cassette tape BCT-40HD.
Check to see that tape runs while satisfying the
specification 2.
If the specification 2 is not satisfied, perform step
8 and higher.
4. PLAY state (tape end portion)
Enter the PLAY state using a tape end (from 35 :
00 to 40 : 00) of the cassette tape BCT-40HD.
Check to see that tape runs while satisfying the
specification 2.
If the specification 2 is not satisfied, perform step
8 and higher.
5. F FWD state (tape end portion)
Enter the F FWD state using a tape end (from 35 :
00 to 40 : 00) of the cassette tape BCT-40HD.
Check to see that tape runs while satisfying the
specification 2.
If the specification 2 is not satisfied, perform step
8 and higher.
6. REW state (tape end portion)
Enter the REW state using a tape end (from 35 :
00 to 40 : 00) of the cassette tape BCT-40HD.
Check to see that tape runs while satisfying the
specification 2.
If the specification 2 is not satisfied, perform step
8 and higher.
8-24
T2 tape guide
T1 tape guide
Drum
assembly
Drum rabbet guides
Tape runs while keeping
contact with the upper flange.
Drum
T1 T2
The guide that
Drum rabbet guides
has no lower
flange.
Tape runs while keeping
contact with the lower flange.
. Allowance of tape curl
Curl
Tape
Specification 2 :
(A) T3 tape guide
The guide that has no lower flange. : Gap must exist in between the
The guide that has the lower flange. : Amount of tape curl at the upper
(B) T2 tape guide
Amount of tape curl at the upper or lower flange must be smaller than
the allowable limits.
Amount of tape curl must be less than 1/10 of tape width.
(C) T1 tape guide
Tape runs while keeping contact with the upper flange.
Amount of tape curl at the upper flange must be smaller than the
allowable limits.
Amount of tape curl must be less than 1/10 of tape width.
(D) Drum rabbet guide
Tape runs while keeping contact with the drum rabbet guide and must
not have any curl.
CUE/TC head
Capstan
T3 tape guide
Pinch roller
assembly
T4 tape guide
T5 tape
guide
Pinch roller assembly
Capstan
Gap must exist
T3 T4 T5
When the guide
has the lower
flange, tape runs
keeping contact
T3
with the upper
flange.
Upper flange
Amount of tape curl
must be less than
1/10 of tape width.
Lower flange
upper flange and the tape guide.
or lower flange must be smaller
than the allowable limits.
Amount of tape curl must be less
than 1/10 of tape width.
HDW-750/750CE V1