Teac VRDS-7 - Audio Adjustment Procedures; Audio Output Level Calibration; Channel Level Difference Measurement; DC Offset Calibration

4-2 AUDIO ADJUSTMENT 4-747
DISC: YEDS-18 (MCD-111)
TRACK No. 547 | FREQUENCY Bikek
—_
. Output level
HALAL
. Channel level
difference
F 9 VRIVLNIVE
VRDS-7 _
aa
REMARKS
ia =
load impedance :
BIT VYE-SVYA:
50k Q
SPECIFICATIONS
m
2.1 + 0.3Vrms
1.0dB or less
. DC offset
adjustment
DCAD» bP
Adjust V151(Lch),
V251 (Reh) on AUDIO
PCB so that the offset
voltage becomes OmV.
Tsk
ec
FTE
y
RMEDNOMV
Ic
%SBKSB AUDIO PCBO
V151(Leh), V251 (Reh)
eT 3.
. Harmonic
distortion
BARES
. Frequency
response
FRSA E
0.004% or less a es Hh
20Hz~20kHz Within + 1.0dB reference level: 1kHz
. S/N ratio
S/NEE
. Channel
separation
Fe VAIL
BNL-—Yay
DIN AUDIO
(Use SHIBASOKU 725
or equivalent)
100dB or better
95dB or better DIN AUDIO
. Emphasis effect
LVI r YADR
AUDIO PCB
Fig. 4-5 Adjustment locations
-— 9.0 + 1.0dB (YEDS-18)
—~
20
+
1.0dB
(MCD-111)
reference
level:
1kHz
(3) DC voltmeter
(1,2,5,6,7,8) AC voltmeter
(4)
Distorion Analyzer
Fig. 4-6 Test setup
i
|
3
3
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