Table of Contents
Advertisement
V-909RX/V-707RX/V-707R
5-3 RECORDING PERFORMANCE
V-707RX settings:
V-909R X/V-707R
settings:
TEAC test tapes:
.
NR system sw:
OUT
NR system sw:
OUT
MTT-5061: For record test with CrO2..
RECORD
cont.:
Specified position (item 7)
MPX Fill sw:
OFF
MTT-501:
For record test with NORMAL
.
OUTPUT
cont.:
Specified position (item 2)
RECORD cont.: Specified position
MTT-5072: For record test with METAL
(item 7)
;
:
INPUT
ADJUST
MEASURING
|
ITEM
PREPARATION/SETTING
SIGNAL
(or CHECK)
POINT:
RESULT
REMARKS
:
LINE IN:
BIAS TRAP TP.1/TP.
10. Bias trap
Record-pause mode
No signal
U106/U206
Min. reading
fTP.2
Turn trim pots R14/R24, R15/R25 fully clockwise (viewed from REC/PLAY AMPL PCB foil side)
for each trim pot to obtain minimum
resistance value.
,
.
TAPE SELEC-
R14/R24
(FWD)
R15/R25
MTT-5072
(REV)
TAPE SELEC-
;
FWD & REV | TOR:
Se abate
OUTPUT:
11. Record bias
record/ptay
CrO2
altatiatel
142 dB
BLT was
Nearly equal level
modes
Tape:
(6.15
ai
at both frequencies
.
MTT-5061
am
For
L&R-
|
ch in FWD &
TAPE SELEC-
REV
TOR:
:
NORMAL
R16 .....
Tape:
MTT-501
TAPE SELEC-
TOR:
eet
OUTPUT:
METAL
—8 dB (308 mV)
.
R18/R28
qape:
(REV)
MTT-5072
TAPE SELEC-
:
;
FWD
& REV | TOR:
LINE IN:
12. Record level
record/play
CrO2
400 Hz/—12 dB
modes
Tape:
(195 mv)
MTT-5061
OUTPUT:
=
Check
—8 dB +1.5 dB
TAPE SELEC-
(259 mV to 367 mV)
TOR:
NORMAL
Tape:
MTT-501
(
doanee
OUTPUT:
Total
h
-
LINE
IN:
2.2% or less
: iets hon'
| Same as 12 above
400 Hz/—12 dB
Check
[METAL, CrO2]
istorion
(195 mV)
2.0% or less
[NORMAL]
|
OUTPUT:
. Frequency
LINE
IN:
Fig. 5-4 to 5-46
. Same as 12 above
Required signal/
Check
If frequency response is out of specifica-
response
—42 dB (6.15 mV)
tion, recheck ''11. Record bais'' and
"13. Total harmonic distortion".
|
LINE IN:
OUTPUT
45.
Signal-t
'
1 kHz/—9 dB
44 dB min.
Ratio of speci-
iaebta Baha
Same as 12 above
(275 mv)
Check
{METAL, CrO2]
fied output of |
ae
4
43 dB min.
—5 dB to noise
i
No signa!
[NORMAL]
BERBERS 7
TAPE
SELECTOR
ear
7
METAL.
MTT —5072
|
CrOz
MTT—5061
NORMAL
MTT —501
16
Advertisement
Table of Contents
