Teac R-919X Service Manual

V-970X/R-919X
4
MECHANICAL
ADJUSTMENTS
AND
CHECKS
AM BBO EE & PER
4-1
PINCH
ROLLER
PRESSURE
4-1
EvF-no-FEBHA
1.
Press
the
cassette
switch
(see
Fig.
3-1)
up
to
set
the
deck
to
1.
HtYK+>
R(yF
(
Fig.
3-1
BR)
SEAHLTIL
the
playback
mode.
4*E-KFETS,
The
cassette
switch
should
be
pressed
up
throughout
measure-
WER,
ALYb
+
AY
FULACMLBGSTCE,
ment.
2.
CVF
+O-F*
P-LRNAREHNIS.
2.
Hang
the
spring
scale
from
the
pinch
roller
arm.
3.
RAE
YF
+
O-SOREMILE
SS
CRROAAKEIEOK
3.
Extend
the
spring
in
the
direction
shown
in
the
figure
until
BR,
CYF
+
O-DMBCE
PT
RZSY
YeThicseMess
the
rotation
of
the
pinch
roller
stops,
then
return
it
gradually
FSRBAKCES.
so
that
the
pinch
roller
comes
into
contact
with
the
capsten
4
bys.
O-SHGORHS
LOWER.
shaft
again.
BURIE
V-970X
F4OPYTH
390
9
~
490
9
4,
Read
the
value
at
the
moment
the
pinch
roller
starts
rotating.
HT5-4
HY
170
9
~
230
g
Standard
values
R-919X
FHD/REV
Lf
380
9
~
480
9
V-970X Take-up side : 390g —490g (13.8 oz — 17.3 oz)
Supply side 170 g — 230 g (6.0 oz — 8.1 02)
R-919X FWO/REV play: 380g — 480 g (13.4 oz — 16.9 02)
R-919X
V-970X
left
pinch
roller
right
pinch
rolier
Supply
side
Take-up
side
BEYF-O-5
Bee
aa?
7978 TIIPITM
Measure
when
in
REV
play
Measure
when
in
FWD
play
REV
1
BRIE
FWOT
TL
7
Bett
ae
Fig.
4-1
Pinch
roller
pressure
measurement
E>
+-O—S/PRHBE
4-2
TAPE
PATH
ADJUSTMENT
4-2
7
-PHEO
ME
Note: The following special tools and tapes are required for this
section,
Head check jig A (P/N 5736006600)
Head check jig B (P/N 5736006700)
MTT-150 test tape (for Dolby level calibration)
MTT-356 (or MTT-256) test tape (for frequency response
check)
MTT-902 mirror tape (C-90 type)
DECK
under TEST
R
OUTPUT AC Voltmeter
Fig. 4-2 Test setup for azimuth adjustment
PYVYAZMBEBERK
HE.
COMBETSROMAKOBR,
FAK
F—-THYE
CTH.
Av
biBA
(P/N:
5736006600)
Ay
FieSB
(P/N:
5736006700)
MTT-150
FAR+>F-—TD(PILVE—-
VAI:
Py
RA)
MTT-356
(RIAMTT-256)
FAR
+
F—
TC
BR
BAEHE
TAY
56
FA)
MTT-902
=3—->+-—T
(C-90#!)
O°{in
phase)
45°
90°
135°
180°
(out
of
phase)
inte
x04trAB
WADHD
Fig. 4-3. Confirming phase relationship
4c 48 RAHA

Teac R-919X Specifications

General

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