Teac D-70, Руководство по обслуживанию

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2-2-2 Output level check
1. Connect the AC voltmeter to the LINE OUT.
2. Play the track 2 (1kHz, 0dB) of the MCD-111, and check the
output level.
Specifications: 2.2
±
0.2Vrms (100k
Ω
load, RCA)
4.4
±
0.2Vrms (100k
Ω
load, XLR)
2-2-3 Distortion check
1. Connect the distortion meter to the LINE OUT.
2. Play the track 2 (1kHz, 0dB) of the MCD-111, and check the
distortion.
Specification: 0.005% or less (400Hz HPF
＋
20kHz LPF)
2-2-4 Frequency response check
1. Play the track 3-6 (20Hz – 20kHz, 0dB) of the MCD-111, and
check that output level are within the specified values with
respect to the 1kHz reference level.
Specifications: 20Hz – 20kHz, 0
±
1dB (FIR mode)
20Hz – 20kHz, 0
±
1dB (CUSTOM mode)
20kHz, –3
±
1dB (RDOT mode)
●
The DIGITAL FILTER button cycles through the following
modes:
2-2-5 S/N check
1. Play the track 7 (non-signal) of the MCD-111, and check that
noise level are within the specified values with respect to the
1kHz reference level.
Specification: 100dB or more (IEC-A)
2-2-6 Channel separation check
1. Play the track 8 (L:1kHz / R:non-signal) of the MCD-111, and
check the leakage from Lch to Rch.
2. In the same way, play the track 10 (R:1kHz / L:non-signal) of
the MCD-111, and check the leakage from Rch to Lch.
Specification: 100dB or more (IEC-A)
RDOT FIR CUSTOM