Aiwa AD-R450 - service, Руководство по обслуживанию, Страница: 5 / 21

I AD-R
450
g® ; kb B qb J z ' C B '
P r a c t i c a l S e r v i c e F* i g u r e
Wow and flu tter:
Pinch roller pressure:
Take-up torque:
F F and rewind torque:
Playback output:
( T T A- 1 6 1)
R E C / P B output:
( 4 0 0 Hz, 0 V U ,
T T A- 1 1 9 J )
R E C / P B
distortion:
( 4 0 0 Hz)
Playback noise:
R E C / P B S N ratio:
(Unweighted)
( W T D - A )
Erasing ratio:
( 1 2 5 Hz)
B ias frequency:
Frequency response:
According to D I N 4 5 5 0 0 0
Less than 0 . 0 4 5 2$ ( W R M S )
2 1 5 ± _2 5g ( 2 . 1 ± 0 . 2 4 N )
mN •
3 5 Í J 5 g-cm ( 3. 4 í j ' 4 9
1 2 0
~
1 8
O g-cm
(1 1
.
8
~
1 7
■ m)
6 mN
m)
5 4 0 ± 2 OmV
[ L I N E O U T , D I N O U T ( Z only)]
+ 0 . 5 ± 1 . OdB
[ L I N E O U T . D I N O U T ( Z only)]
Less than 2 . 5
%
( N O R M A L )
Less than 3 . OmV ( N O R M A L , , 1 2 0 (iS ,
D O L B Y - N R O F F )
More than 4 5 dB ( N O R M A L , D O L B Y - N R
O F F )
More than 4 5 dB ( N O R M A L , D O L B Y - N R
O F F )
More than 5 5 dB
8 5kHz
3 0 ~
6 0 Hz
1 00 ~
6 5 0 Hz
1 kHz
2 ~
1 0 k Hz
1 3k Hz 1 5 kHz 1 6kHz
M E T A L
■í j j dB
■ ±3dB
t
- OdB • ±3dB
i 4 dB
+ 3
J D
- 4.6' B
+
? d B
—
0
C r 0
2
" 1 . 3 dB
+ ?d B
— 0
N O R M A L
+
? dB
“ D
I nput l e v e l /
impedance:
Output l e v e l /
impedance:
T e s t tape:
L I N E I N maximum input sensitivity:
5 0 mV (over 5 0 k Q )
D I N maximum s e n s itiv ity ( Z only):
0 . 1 m V / k Q ( 3 . 3 kQ)
L I N E O U T standard output level: 0 . 4 V ( 0 V U ) ,
suitable load impedance:over 5 0 kQ
D I N standard level ( Z only): 0 . 4 V ( 0 V U )
Headphones: 8 — 3 2
Q
M E T A L T T A- 1 1 9 M X
N O R M A L T T A- 1 1 9 J
C r 0 2 T T A- 1 1 9 G
G