Teac R-919X Service Manual

4-3
PHOTO
SENSOR
ADJUSTMENT
(R-919X)
1. Connect DC voltmeter as shown in Fig. 4-8.
2.
Playing,
in
REV
direction,
magnetic
tape
portion
of
test
tape
consists
of
elements
in
Fig.
4-9
(MTT-5551
tape,
etc.),
adjust
R84
so
that
a
voltage
of
3.0
V
is
obtained
at
TP.
3.
In
FWD
play,
similarly
adjust
R83
for
obtaining
a
voltage
of
2.8
V,
4.
Re-check
that
voltage
in
REV
play
does
not
change
from
3.0
V.
5.
Set
AUTO
REVERSE
switch
in
C=
position,
then
play
tape
in
FWD
mode
from
point
A
in
Fig.
4-9.
Check
that
tape
motion
changes
in
REV
play
mode
at
point
B,
then
changes
in
FWD
play
mode
at
point
A.
DC voitmeter
|
V-970X/R-919X
4-3
Fah
+t
>-t+39%
(R-919x)
1.
2.
DC
MBH
Fig.
4-8
DESKCHEITS.
Fig.
4-9
KCARTBROTAK
+
F-T
(MIT-5511
3)
O
HiT
—-TRAS
REV
TA
CHTAKKES,
IP
OBE
DM
Z.0VCGSES
ROA
LHBITS,
laltklc
FU
PU
4
THETA,
TP
OBER
28V
KGS
£D
R83
ABTS,
REV
FL
BFC
TP
OBER
3.0
V
DSORSAWCLABH
Bag
D.
AUTO
REVERSE
R4YF&
CadWRKCtybhl,
F-7e
Fig.
4-9
DO
ApaAkO
FID
TL
7atts,
T-TH
B
ROWMBT
REV
SUVKRERL,
TOB
AR
OWBNSHE
FW
SUBS
SCLAMRITS,
OC} R84 (REV)
J R83 (Fwo)
Fig.
4-8
Photo
sensor
adjustment
(1)
7
4
b
-+2
>
4
BBR!)
splicing tape
AVG4YvYr7-F-7F
leader tape t
YF F— 7
Magnetic tape
BAT -T
splicing tape
AVIA YA F-TF
A leader tape
YS -F-T7F
Fig.
4-9
Photo
sensor
adjustment
(2)
7
+
b
-
tz
>
+
3
8K(2)

Teac R-919X Specifications

General

Brand	Teac
Model	R-919X
Category	Cassette Player
Language	English