Teac X-10 - 3-2 PLAYBACK PERFORMANCE; 5. PLAYBACK HEAD AZIMUTH; 6. PLAYBACK LEVEL; 8. FREQUENCY RESPONSE

X-10R/X-10
TEAC
test
tape:
YTT-1002:
For
playback
alignment
(9.5
cm/s
or
3-%
ips)
YTT-1003:
For
playback
alignment
(19
cm/s
or
7-%
ips)
3-2
PLAYBACK
PERFO
RMANCE
YTT-8013:
For
recording
alignment
(blank)
ITEM
CONNECTION
MODE/
SIGNAL
ADJUST
OUTPUT
INSTRUCTION
SOURCE
(or
CHECK)
Do
for
both
FWD
Phase:
=
within
45
on
.
Playback
&
REV
heads
YTT-1003
Azimuth
adj.
head
MONITOR
sw.—
___[{16
kHz/—10
dB)|
screw/s
of
head
|
oscilloscope
azimuth
TAPE
(Fig.
2-17)
(Fig.
3-3)
SPEED sw.—HIGH
FWD & REV R313/R314
OUTPUT
cont.
|YTT-1003
(FWD)
—5
dB
(436
mV)
|Spec.
PB
condition
CAL (400 Hz/0 dB) R315/R316
SPEED sw.—HIGH
OUTPUT cont.—
+1 dB +2dB
(690 mV~
. Playback
level
Spec. PB condition
IMPORTANT: Do not
disturb OUTPUT cont.
during later checks.
—5 dB (436 mV)
r3sg/R390 | 9 VU
on VU meter
7. VU meter [7-1 |Fig. 3-1
R327/R328
(FWD)
R329/R330
40 Hz~22 kHz
8-1
Reference:
400
Hz
8. Frequency
response
fe
~~
ee
ee
ee
eed
ee
+
et
ee
ee
ee
eco
oor
|
R333/R334
40
Hz~14
kHz
8-2
YTT-1002
(FWD)
+3
dB
R335/R336
(REV)
Phase: é
within 45 on
oscilloscope
(50 Hz~18 kHz)
(Fig. 3-3)
SPEED-
9. Phase shift
",
(50 Hz~10 kHz)
—24 dB +2 dB
(38.8 mV ~
61.5 mV)
(at PHONES jack)
10. Headphone
output
level
When OUTPUT terminal
is at —5 dB
Spec. PB condition
‘ HOM | (400 Hz/0 dB)
FWD & REV
Spec. PB condition
Use fully
erased tape
(Use bulk
tape eraser)
-Ratio of spec.—5 dB and
noise
-Change-over the polarity
of the AC Line plug. The
worse reading should be
within spec.
11. Signal to |11-1|Fig. 3-1
noise ratio
AC Voltmeter
0° (IN PHASE) 45 90° 180
DECK under TEST
T- 1493
Fig. 3-3 Confirming phase relationship
Fig. 3-4 Connection
11