Fostex X-34 Service Manual page 6

X-34
RECORDER SECTION (continued)
REC & PLAY
Level Deviation at Ref. Output Level
PLAY
REC & PLAY
S/N
PLAY
REC & PLAY
Distortion (with 400 Hz HPF & 30 kHz LPF)
(REC & PLAY)
Erasure Ratio
Cross Erasure
Channel Separation
Sync Crosstalk
Bias Leakage
Click Noise
PLAY STOP
REC STOP
Monitor
PLAY
Punch In / Out
Shock Noise
* Specifications and appearance are subject to change without notice for product improvement.
6
Test tape: AC-514 (NR: OUT, recording level: 0 dB)
+3 dB
-3 dB
40 Hz
Test tape: AC-514 (NR: IN, recording level: -25dB)
5 dB
250 Hz
1 dB or less at 400 Hz (NR: OUT, TCW-231 test tape)
3 dB or less at 40 HZ ~ 12.5 kHz (NR: OUT, SCW-977 / TCW-284F test
tape)
1 dB or less at 400 Hz (NR: OUT, AC-514 test tape)
2 dB or less at 100 Hz ~ 10 kHz (NR: OUT, AC-514 test tape)
47 dB or more (NR: OUT, DIN AUDIO)
55 dB or more (NR: OUT, IHF-A)
45 dB or more (NR: OUT, DIN AUDIO)
48 dB or more (NR: OUT, IHF-A)
48 dB or more (NR: IN, DIN AUDIO)
55 dB or more (NR: IN, IHF-A)
2 % or less (Input signal: 1 kHz / standard level, standard fader position,
REC SEL: All track )
67 dB or more at 1 kHz (Input signal: 1 kHz / 0 dBV, standard fader
position, with 1 kHz BPF)
1 dB or less (Input signal: 10 kHz / -10 dBV, standard fader position.
Measure level difference when adjacent track is put into REC mode.)
50 dB or more (Input signal: 1 kHz / -10 dBV, standard fader position,
with 1 kHz BPF. Measure leakage level when adjacent track is put into
REC mode.)
-25 dBV or less (Input signal: 1 kHz / -10 dBV)
-10 dBV or less (Input signal: peak frequency / -10 dBV)
(Measure leakage level when adjacent track is put into REC mode.)
-35 dBV or less (No LED meter should not be lit. Standard fader position.
Measure leakage level at TAPE OUT when unit is put into REC mode.)
-30 dBV or less (No tape is loaded.)
p-p
-20 dBV or less (AC-514 test tape)
p-p
-20 dBV or less (AC-514 test tape)
p-p
-30 dBV or less at PLAY (AC-514 test tape)
p-p
-30 dBV or less (Measure playback noise level when one side of
p-p
appliance is dropped 3 times from 5 cm height.)
400 Hz 12.5 kHz
6 dB
10 kHz
12.5 kHz