8
4-2-4 Recording performance
Deck settings :
Mode : REC/PLAY
DOLBY NR Switch : OFF
REC LEVEL Control : Specified position (Item 8)
TEAC recording test tapes :
MTT-5513 : For NORMAL
MTT-5563 : For C
r
O
2
MTT-5572 : For METAL
8. Specified
LINE input
level
Connection:Fig. 2-3
Mode: REC
LINE IN:
400Hz/-9dB
REC LEVEL
LINE OUT:
-4.5dB
LINE OUT:
-7.5dB
NORMAL
:2.0% or less
C
r
O
2
:2.5% or less
METAL :3.0% or less
NORMAL
:45dB min.
C
r
O
2
:46dB min.
METAL :46dB min.
P303 Pin 2:
100kHz
TP3/TP4:
Min. DC voltage
LINE OUT:
Nearly equal level
at both frequencies
30dB min.
L301
L103/L203
R14/R24
L101/L201
R13/R23
Check
Check
Check
Check
LINE IN:
19kHz/-12dB
LINE IN:
400Hz/-12dB
LINE IN:
400Hz/-12dB
LINE IN:
250Hz/10kHz
-42dB
LINE IN:
40Hz -12.5kHz
-42dB
LINE IN:
No signal
LINE IN:
No signal
LINE IN:
No signal
Connection:Fig. 2-3
Mode: REC
Connection:Fig. 2-2
TAPE: MTT-5513
Mode: REC
Connection:Fig. 2-2
TAPE: MTT-5572
Mode: REC
Connection:Fig. 2-3
TAPE: MTT-5513
Connection:Fig. 2-3
TAPE: MTT-5513
MTT-5563
MTT-5572
Connection:Fig. 2-3
TAPE: MTT-5513
MTT-5563
MTT-5572
Connection:Fig. 2-3
TAPE: MTT-5513
MTT-5563
MTT-5572
Connection:Fig. 2-3
TAPE: MTT-5513
TAPE: MTT-5563
MTT-5572
ITEM
REMARKS
SETTING
INPUT SIGNAL
ADJUSTMENTS
MEASURING
POINTS, RESULT
9. Bias osc
frequency
13. Record
level
12. MPX filter
MPX
10. Step up coil
11. Record bias
16. Overall S/N
ratio
14. Total
harmonic
distortion
15. Overall
frequency
response
LINE OUT:
-7.5 1dB
Ratio of ref.
level to noise
Ratio of ref.
level to signal
After adjusting,
do not move
(Specific position)
40
250
+6dB
-6dB
12.5k (Hz)