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7
W-860R
ITEM
項 目
SETTING
設 定
INPUT SIGNAL
入力信号
ADJUSTMENTS
調整個所
MEASURING
RESULT
調整値
REMARKS
備 考
17. Erase
efficiency
消去率
Connection:Fig. 2-3
TAPE: MTT-5572
1kHz B.P.F in
LINE IN:
1kHz/+1dB
Check
65dB min.
Ratio of the 1kHz
recorded portion to the
erased portion.
未消去部分と消去部分
の比
18. REC MUTE
function
REC MUTE
効果
Connection:Fig. 2-3
TAPE: MTT-5572
1kHz B.P.F in
LINE IN:
1kHz/+1dB
Check
55dB min.
Ratio of the 1kHz
recorded portion to the
"REC MUTE" portion.
録音部分と "REC
MUTE" 部分の比
19. Channel
separation
チャンネルセ
パレーション
Connection:Fig. 2-3
TAPE: MTT-5563
1kHz B.P.F in
LINE IN:
Lch 1kHz/
−9dB
Rch No signal
無信号
Check
35dB min.
Ratio of Lch (1kHz) to
Rch (no signal).
Lch (1kHz)とRch (無信
号) の比
20. Adjacent
track
crosstalk
トラック間
クロストーク
Connection:Fig. 2-3
TAPE: MTT-5572
LINE IN:
Lch No signal
無信号
Rch 125Hz/
−9dB
Check
40dB min.
Invert tape and play Rch
track. Check leakage
level against the output
reference of previously
recorded portion.
テープを反転して再生
した時のRch出力レベ
ルの比
Oscilloscope
AC voltmeter
W-860R
L
VER
R
LINE OUT
HOR
0
°
(in phase)
(同位相)
45
°
90
°
135
°
180
°
(out of phase)
(逆位相)
Fig. 2-4
Fig. 2-5
Oscillator
Distortion Analyzer
Oscilloscope
AC voltmeter
W-860R
1kHz Filter
L
S1
R
L
R
LINE IN
LINE OUT
S2
Fig. 2-3
Summary of Contents for W-860R
Page 8: ...3 EXPLODED VIEWS AND PARTS LIST EXPLODED VIEW 1 W 860R 8...
Page 13: ...13 W 860R MAIN PCB TR PCB REC AMP PCB...
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