Tape Path; Capstan; Hea D Pa R Alle L Ism - TANDBERG 3400 X Service Manual

4.
TAPE PATH
4.1
CAPSTAN
Before the heads and tape guide posts are adjusted,
the position of the capstan must be checked.
Useipecial tool No. 5 as shown in Figure 4.1. All
three legs of the special tool should rest on the
upper mounting plate. If one or more of the legs
dois not rest on the plate' the capstan needs
adjusting. To adjust the capstan, loosen the three
coioured screws and adjust the capstan until all
three legs of the tool rest on the plate. Tighten up
the screws and check again that the legs are all
touching the Plate.
NOTE! The capstan will not go out of adjustment
with normal use and transit.
4. 2
H EA D PA RA L L E L I S M
Check that the heads are parallel with the aid of a
tape path gauge' see Figure 4'2. This adjustment
aflects the passage of the tape through the tape
path, and where the heads are seriously out of
ilignment the complete tape path must be checked,
see next page.
Fig. 4.1. Actjusting the capstan with special tool No' 5'
4N
1
s
Adjust
Forwards
Adjust
Backwards
r-TIl
L__J
Co rr e ct
Z e n it h
Fig. 4.2. Adjustirtg with the tape path gauge'
(s'