Sony TC-377 Service Manual page 19

16. Overall Frequency Response Measurement 17. Overall S/N Ratio Measurement .
Control/Switch Setting:
TAPE SELECT switch: NORMAL and
SPECIAL
Control/Switch Setting:
TAPE SELECT switch: NORMAL and SPECIAL
TAPE SPEED selector: 7% ips (19 cm/s)
TAPE SPEED selector: 7% ips(19 cm/s) MONITOR switch: TAPE
3% ips (9.5 cm/s) MIC RECORD
and 17/s ips (4.8 cm/s) VOLUME control: See page 16
MONITOR switch: TAPE.
-LINE RECORD Procedure:
VOLUME control: See page 16 1. Mode: record
c af osc
SONY super 150
Q 'ius SONY SLH
*Ho00% ;
oO
MICROPHONE
1kHz, -60dB (0.78mvV)
LINE IN
1 kHz, ~-300B {25mv) eee
Mode: record
blank tape
LINE OUT
MICROPHONE
no signal input
2. Level Deviation from 1 kHz signal.
(for both SPECIAL and NORMAL)
ex SO0Hz | 100Hz | SkHz | 7kHz aeons
ex speed
[semis | [semis | £3 dB
+ need
9.5 cm/s a a P
+5 +1
peter —
Note: When recording signal on SONY tape
"super 150", set TAPE SELECT switch
to NORMAL and on SONY SLH tape,
to SPECIAL.
3. Mode: playback
recorded
portion
LINE OUT
Specification:
1kHz level difference: | level difference:
greater than greater than
no signal 45 dB 47 dB
Note: When recording signal on SONY tape
"super 150", set TAPE SELECT switch
to NORMAL and on SONY SLH tape,
to SPECIAL.