Tape Running Adjustment - Sony Digital Betacam DVW-707 Maintenance Manual

5-1. Tape Running Adjustment

Notes
. When carrying out the tape running adjustment after replacing the part of the tape path system, first carry
out the checks and adjustments of the tape running using a Digital Betacam cassette tape BCT-D40.
Next carry out the checks and fine adjustments of the tape running using an alignment tape ZR2-1/P.
. The following checks and adjustments are described in the state that the alignment tape ZR2-1/P uses.
. Tighten the screws at the top of the tape guides to the following tightening torque.
_2
9x10 N.m (0.9 kgf.cm)
. After adjustment, be sure to check the video tracking adjustment.
After checking, put a locking compound to the screws at the top of each tape guide.
Drum Entrance Side
Tools
. Tape guide adjustment screwdriver (45)
. Inspection mirror
. Alignment tape, ZR2-1 (for NTSC)
. Alignment tape, ZR2-1P (for PAL)
. Cassette tape, BCT-D40
Checks
1. PLAY Mode
(Playing back the tape top)
Enter the play mode at the tape top of ZR2-1/P
(from 5 minute to 10 minute segment).
Check that the tape running conditions satisfy the
specifications 1.
If the specifications 1 is not satisfied, perform
step 8 and higher.
Specifications 1 :
(A) S5 guide
There must a clearance between top edge of
the tape and the upper flange, and a clearance
between the bottom edge of the tape and the
lower flange.
Ratio of the top clearance to the bottom
clearance is 3/2 to 2/3 as the clearance
specification.
(B) Tension regulator guide
Tape must run while maintaining contact
with the upper flange.
Acceptable range of the tape curl is 1/10 or
less of a tape width.
(C) S2 guide
Tape must run while maintaining contact
with the upper flange.
Acceptable range of the tape curl is 1/10 or
less of a tape width.
(D) Drum lead
Tape must run while maintaining contact
with the drum rabbet guide without any curl.
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1
: J-6322-420-B
: J-6080-840-A
: 8-960-073-11
: 8-960-073-61
: Standard products
Drum Entrance Side (Threading End Mode)
S3 tape guide
Tape end sensor
S4 tape guide
S5 tape guide
Drum assembly
5-1. Tape Running Adjustment
S2 tape guide
FE head
CTL head
S1 tape guide
5-3