Teac X-1000 - 17. Record Level Adjustment; 22. Recording Frequency Response

CONNECTION
MODE/
INSTRUCTION
SIGNAL
SOURCE
ADJUST
(or CHECK)
17-1| Fig, 3-1
Same as 16-2
SPEED—19cm/s
400Hz/—12dB R429/R430
(195mV)
. Distortion | 18-1| Fig. 3-1
Same as 16-1 and
16-2, but SPEED sw
—38cm/s [X-1000M]
{or 19cm/s [X-1000]
. Signal to
noise ratio
. Erase
efficiency
Fig. 3-1
switch on
1kHz filter
MONITOR-—TAPE
LH-IT
YTT-8013
Hee
YTT-8053
| 1kHz/—12dB
X-1000M/X-1000
RESULT REMARKS
—5dB (436mvV)
Spec. REC condition
4kH/—12dB
(195mvV)
(195mV)
then
No signal
‘|0.8% or less
(w/LH-I, EE)
LH-[:
38cm/s
19cm/s
9.5cm/s
recording
EE:
38cm/s
19cm/s
9.5cm/s
TAPE sw—EE
MONITOR—TAPE
SPEED—38cm/s
[X-1000M] or
19cm/s { X-1000]
TAPE—YTT-8053
1kHz/—2dB
(615mV)
{+40VU)
then erasing
Ratio of spec, —5dB
to noise
38cm/s:
65dB min.
19cm/s:
70dB min.
-Ratio of 1kHz portion
to ‘‘no signal" portion
-The worst value should
be within spec.
. REC
MUTE
function
. Frequency
response
Fig. 3-1
switch on
1kHz filter
{—
Spec. REC condition
Rec-mute mode
MONITOR] 9.5cm/s
—TAPE
4
EE
YTT-8053
38cm/s
LH-IT
YTT-8013
9.5cem/s
19cm/s
38cm/s
Spec, REC condition
SPEED—19cm/s ~
. LH-1
position
check
. Adjacent
track
crosstalk
[X-1000]
. Channel
separa-
tion
Fig. 3-1
switch on
1kHz filter
1kHz/—2dB
(615mV)
(+70VU)
then record
muting
}——
65dB min.
-Ratio of 1kHz portion
to “’no signal’ portion
-The worst value should
be within spec.
L305/L306
[X-1000]
Check
[X-1000]
L305/L306
[X-1000M]
Required signal/
40Hz ~ 10kHz/
—32dB
(19.5mV)
Spec. REC condition
Tape—YTT-8013
SPEED—19cm/s
20kHz/—32dB
(19.5mV)
within 45° on
oscilloscope
(40Hz ~ 16kHz)
(Fig. 3-3)
Also it is possible to
fine-adjust by the
record bias adjustors
(see item 16.) if this
respective specified
record bias setting
ranges are kept.
When TAPE
SELECTOR
sw is changed
LH-T > LH-I,
output level
should raise
+3dB +1dB.
Spec. REC condition
SPEED—19cm/s
TAPE sw—LhH-IL
Interchange R & L
reels then play.
125Hz/—12dB
(195mV)
Same as 25-1
L: 1kHz/—12dB | Check
(195mV)
R: No signai
record.
L: No signal
At both L-and
R-ch
125Hz: —45dB
or more (4.36mV
or less)
(40dB min. ratio)
R, —55dB
or more
(1.38mV or less)
(50dB min. ratio)
record.
R: 1kHz/—12dB
13