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OPERATING INSTRUCTIONS
18. SOUND W 1TH SOUND
To
record sound with sound, substitute the following
ste
p for
ste
K
(K
)
Dec rease the
LEFT
LI
E VOLU
M
E C
O
TROL
"""
~
\
)
of
the
sound
o
n sound
proced ure a
nd
elimina
te step
(N
I
~
to n1mImum.
··
19.
FAST-FORWARD AND REWIND
To
use fast-forwa
rd or
rewind,
push
the
FA T-FORWi\RD BU'l7'0"i
@
o
r
the
R
EW IND B TTON
@.
.
wn
to
·ee
the ta
e off
the
Pull
the
LOWER
H
EA
D COVER
@
do
k
20. TAPE SPEED CHANGE
T
o
select
the desired tape
speed,
use the
SPEED
C
HAI
GE
SW
ITCH
3
,n
the
center
of the
panel.
For
hig
h
speed
tape duplica
tion
,
15
ips c~
be
selected
b
y
a
u ach
i_ng the
ext
ra capsta
n
a nd
pinch wheel contained
in
t
he sta nda
rd
accessones.
21. HEAD CLEANING
hours
of
opera
tion
, the heads
wi
ll
a
ccumulate
sma
ll
quan.
Fig.
20
Fig.
21
@
OPERATING INSTRUCTlUN:;
22, HEAD DEMAGNETIZATION
ormally,
in
all tape recorders, the heads
will
become
slightly magnetiz.
ed.
A
slightly magnetized head
will
partially
erase
a
recorded
tape
with
high
frequencies suffe ring the g
reatest
losse
.
SeYereJJlagnetizatioru
wl,
result
if
magnetized
tools a re
used
in
the
yjsjpjJX
of
IbS
h
52ds.
The
X
-355
has a
built in head
demagne tizing
circuit
; however,
periodic
de-
ma
netization with
a dema
netizer
is
still
recommende
. After
removing
the
LOWER
HEAD COVER @,
the heads
can
be
demagnetized
by
touching the heads lightly
with
the
d emagneti zer
a
nd
making
small
circul
ar
motions
over
the
en
tire
head
urface a nd head housi ng.
Fig. 23
23. TRANSISTOR PROTECTION
T he S.
E.
P. P.
0
.
T.
L. system
is
used to
p
rotect
the
output
circuitry
of
the
X-355 main
a mplifie rs. The
minimum
outp
ut im ped
a nce sho
ul
d
be
8
ohms.
If
a
speaker o
f
less
than
8
ohms impedance
is
used or if
the speake
r
termina
ls
a re accidenta
lly
shorted
,
the
p rotector
fuse
will blow
to
protect
the
tra
nsistors.
T
ra
nsistors are
easil
y
d amaged b
y excessive
load or high
a
mbien
t
tem
peratures.
If
the protecto
r
fuse
has blown,
the
sound
may be
distorted
or there may
be
no sound a
t all.
The
p rotector
fuse may be
replaced with
a
ny
suitable
comme
rcial IA
fuse.
24. VENTILATION
The
ventilation
system
of
the
X
-355 is
designed
to p
revent
inte
rn al
accumula
tion of
excess
heat
tha
t
wo
uld shorten
the life o
f
the
component
pa
rts.
It
is
recommended
th
a
t
the
X
-355 be placed
so
tha
t
ai
r
mav
circul
a te
freely
aroupd
if·
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