Teac V-2RX - Recording Performance; Recording Bias and Level Setup; Recording Performance Checks

V-2RX/V-4RX
LEVEL cont.: OFF (depressed)
MONITOR sw
(V-2RX only): TAPE
RECORD cont.: Specified position (item 7)
NR
SYSTEM
sw:
OUT
TEAC
test
tapes:
BIAS FINE cont. ( ; ) MTT-5072: For METAL recorcel test
(V-2RX
only):
O
(center
detent
position
MTT-5061:
For
Co
(CrO,)
record
test
5-3 RECORDING PERFORMANCE output cont.: MAX MTT-501: For NORMAL record test
ADJUST MEASURING
ITEM SETTING INPUT SIGNAL (or CHECK) POINT: RESULT
Li oy
LINE IN: (V-2RX TP11/TP21
10.BIAS
trap
REC/PLAY
-
REC/PAUSE
No
signal
U104/U204
Min.
reading
(V-4RX)
1) Adjust in the order of steps (2) (3) (4).
LINE IN: C155/C255 OUTPUT:
2) TAPE sw.: METAL 400 Hz & 6.3 kHz (V-2RX) Nearly equal
Tape: MTT-5072 alternately/-42 dB | C131/C231 level at both
:
{6.15
mV)
(V-4RX)
frequencies
2 LINE IN: OUTPUT:
11.
Record
bias
3)
TAPE
sw.:
Co
(CrO,)
400
Hz
&
6.3kHz
|
243
Nearly
equal
..
For
L-
&
Tape: MTT-5061 alternately/-42 dB | © ~ """" level at both R-ch
(6.15
mv)
frequencies
LINE IN: OUTPUT:
4)
TAPE
sw.:
NORMAL
400
Hz
&
6.3
kHz
R12
Nearly
equal
..
For
L-
&
Tape:
MTT-501
alternately/-42
dB
|“
""""
level
at
both
R-ch
(6.15 mV) frequencies
LINE IN:
TAPE sw.: METAL. OUTPUT:
Tape: | MTT-5072 Noe R14/R24 -6.5 dB (367 mV) a
fi LINE IN: OUTPUT:
12.
Record
level
TOEE
Ce
400
Hz/-12
dB
Check
-6.5
dB
#1.5
dB
ee (195 mV) (308 to 436 mv)
2 LINE IN: OUTPUT:
TAPE sw.: NORMAL 400 Hz/-12 dB Check -6.5 dB +1.5 dB
Tape: MTT-501 (195 mv)
13.
Total
harmonic
LINE
IN:
OUTPUT:
“di
torti
Same
as
12
above.
400
Hz/-12
dB
Check
1.8%
or
less
with
METAL,
Co
(CrO2)
eee
(195
mV)
2.0%
or
less
with
NORMAL
LINE IN:
TAPE sw.: METAL . i OUTPUT:
Tape: MTT-5072 dicta aol al Fig. 5-8
LINE IN:
14.
Frequency
TAPE
sw.:
Co
(CrO,)
s
-
OUTPUT:
response Tape: MTT-5061 Se ew Check Fig. 5-9
:
LINE
IN:
:
Me owe belles Required signal/ Check ein E18
pens -42 dB (6.15 mV) a
If frequency response is out of specification, recheck #11. ‘Record bias’.
LINE IN:
400 Hz/-9 dB
TAPE
sw.:
METAL
OUTPUT:
Tape: MTT-5072 (275 ee Gheck 46 dB min.
no signal
LINE te eee
‘
‘
400
Hz/-9
dB
atio
of
spec-
15.
Signal-to-noise
TAPE
sw.:
Co
(CrO,)
OUTPUT:
gs
ratio
Tape:
MTT-5061
oN
Check
46
dB
min.
ieeeu
anaes
no signal
. LINE IN:
400 Hz/-9 dB
TAPE
sw.:
NORMAL
OUTPUT:
Tape:
MTT-501
aim
neal
45
dB
min.
no signal
(2.
10