Akai AX-890 User Manual

3-5.
REPLACEMENT
OF
THE
be
HEAD
OR
REC/PB HEAD
1)
Remove
the
two@
screws
and
remove
the
HEAD
SHIELD
PLATE as shown in Fig. 3-1. ~
2)
Disconnect
all
the
lead
wires
(from
the
pee
|
on
the
JUNCTION
PCB.
with
as
is
RED
= BLUE
z
(TAPE Il) (TAPE |)
Fig. 3-9
3)
Remove
the
two
head
retaining
screws
and
remove
the
head.
REC /PB HEAD
Fig. 3-10
4)
Thread
all
the
lead
wires
into
the
hole
on
the
HEAD
HOLDER
and
then
tighten
the
two
retaining
screws.
5) Solder all the lead wires.
6)
De-magnetize
the
HEAD
then
reassemble
in
the
reverse
order.
After
replacement,
head
azimuth
and
PB
level
adjustments
are
absolutely
necessary
for
the
proper
performance.
In
addition,
the
REC
bias
current
adjustment
is
also
required
for
the
TAPE-II
HEAD
(refer
to
sections
5-
9).
Note: .- _.
If the removal of the HEAD HOLDER i is necessary, - the
first tooth of the HEAD HOLDER with the groove between
the first and second tooth on the HEAD ARM GEAR when
feascemmnling as shown i in Fig. 2 11.
- FWD : 7" REV
AZIMUTH ADv..
First tooth
AZIMUTH ADu.
HEAD HOLDER HEAD ARM GEAR
Fig. 3-11
eens
SERVICE
MANUAL
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31

Akai AX-890 Specifications

General

Brand	Akai
Model	AX-890
Category	Stereo System
Language	English