Teac W-600R Service Manual page 5

2-2-4 Recording performance
Deck settings:
Mode: REC/PLAY
DOLBY NR Switch: OFF
REC LEVEL Control: Specified position (Item 7)
ITEM SETTING
7. Specified
Connection: Fig. 2-3
LINE input
Mode: REC
level
Connection: Fig. 2-2
8. Bias osc
TAPE: MTT-5513
frequency
Mode: REC
Connection: Fig. 2-3
9. Record bias
TAPE: MTT-5513
Connection: Fig. 2-3
10. MPX filter
Mode: REC
Connection: Fig. 2-3
TAPE: MTT-5513
11. Record level
TAPE: MTT-5563
12. Total Connection: Fig. 2-3
harmonic TAPE: MTT-5513
distortion MTT-5563
13. Overall Connection: Fig. 2-3
frequency TAPE: MTT-5513
response MTT-5563
Connection: Fig. 2-3
14. Overall S/N
TAPE: MTT-5513
ratio
MTT-5563
Connection: Fig. 2-3
15. Erase
TAPE: MTT-5563
efficiency
1kHz B.P.F in
Connection: Fig. 2-3
16. Channel
TAPE: MTT-5563
separation
1kHz B.P.F in
17. Adjacent
Connection: Fig. 2-3
track
TAPE: MTT-5563
crosstalk
INPUT SIGNAL
ADJUSTMENTS
( LINE IN )
REC LEVEL
400Hz/ − 9dB
No signal L301
250Hz/10kHz
R14/R24
42dB
−
19kHz/ 12dB L101/L201
−
R13/R23
400Hz/ − 12dB
Check
400Hz/ 12dB Check
−
40Hz 12.5kHz
−
Check
42dB
−
No signal Check
1kHz/ 1dB Check
＋
Lch: 1kHz/ − 9dB
Check
Rch: No signal
Lch: No signal
Rch: 125Hz/ Check
9dB
−
W-600R/W-488R
TEAC recording test tapes:
MTT-5513 : For NORMAL
MTT-5563 : For CrO
MEASURING
REMARKS
POINTS, RESULT
OUTPUT: After adjusting, do
Lch: 3.5dB not move
−
Rch: 3.5 3dB (Specific position)
− ±
P303 Pin 2:
75 ± 5kHz
OUTPUT:
Nearly equal level
at both frequencies
( 0.5dB)
±
Ratio of ref.
30dB min.
level to signal
OUTPUT:
6.5dB
−
OUTPUT:
6.5 1dB
− ±
NORMAL: 2.0% or less
CrO : 2.5% or less
2
40 250
Ratio of ref.
40dB min.
level to noise
Ratio of the 1kHz
recorded portion
65dB min.
to the erased
portion.
Ratio of Lch
35dB min. (1kHz) to Rch (no
signal).
Invert tape and
play Rch track.
Check leakage
40dB min. level against the
output reference
of previously
recorded portion.
2
+
6dB
–6dB
12.5k (Hz)
5