为什么要这样调整小谷MX55开盘机的放音特性

红灯记

奇异 发表于 2015-2-2 15:22
' D" T% @+ [" {- E) F& n. |是不是换了磁头？这金黄色磁头是不是国产的啊，

金色是原装的，换上去的是国产组装产品

emgc

红灯记 发表于 2015-2-1 11:38
' y: o1 E9 Q9 K0 d原文出处：

  e: b- m5 a8 \6 h1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
  I* e9 ~- _9 d3 C( y1。连接交流电压表CH 1输出连接器。
2. Thread the machine with the Reproducer Calibration Tape, press the OUTPUT SRL switches for both CH1 and CH2 and set both READY/SAFE switches to the Safe position. Set both INPUT/SEL’REP/REPRO switches to the Bepro position.
, [3 S5 ^! n5 G, `2 ^% o9 T2。螺纹与扬声器校准磁带机，按两CH1和CH2的输出该开关和设置准备/安全开关到安全位置。设置输入sel'rep /摄制切换到百诺位置。
  i" f! O5 h% p4 J7 G, v9 E* }3. Play the 1 kHz at Reference Level portion of the Reproducer Calibration Tape.
( c' G. k0 }! E! \) g8 {3。在磁带放音机校准参考水平的部分发挥1千赫。
4. Adjust the CH1 REPRO LEVEL trimmer (VR15) on the AUDIO AMPLIFIER PCB assembly so that the AC voltmeter indicates +4 dBu.
& h0 c2 w. e9 O4。调整CH1摄制水平微调（vr15）在音频放大器电路板组装，交流电压表指示+ 4 dBu。
" a, _. W/ X4 x5. Repeat Steps 3 and 4 for channel 2 using the CH 2 REPRO LEVEL trim¬mer (VR25).
5。重复步骤3和4通道2用CH 2摄制水平配平¬MER（vr25）。
4.3.3.4 Reproduce Equatizatioti Adjustment
3 a! `. w" b" C5 a8 f0 t+ j+ W  Sequatizatioti 4.3.3.4再现调整
  H# m  n1 d- z) b* WNOTE: This procedure adjusts the High Frequency Reproduce Equalization.
7 {+ J: M) v* d4 X9 L3 @/ E注意：本程序调整高频再现均衡。
The Low Frequency Reproduce Equalization is adjusted during the Record
4 [+ R9 O8 C8 J5 K: t; H" Q9 Z, f低频再现均衡是在记录调整
/ W  `3 E9 M; T& N( Y: o; M& [Alignments. Due to the fringing effect which occurs at low frequencies,
对齐。由于边缘效应在低的频率发生，
( M8 m1 E4 b1 F4 L% F0 n$ Jadjusting the Low Frequency Reproduce Equalization using the Reproduce
! y* a! |# a/ ]) C3 P调整低频再现均衡使用复制
Alignment Tape does not produce accurate results.
1 p" G/ d" x8 u4 y4 P( A5 g调整带不产生精确的结果。
1. Thread the machine with the 15 ips Reproducer Calibration tape.
1。螺纹15 IPS设备校准磁带机。
0 a+ E: _0 c4 C! U3 }2. Set the SPEED LO/HI switch to the Hi position.
  x+ J0 A9 A( ~" ?& A2。设置速度的高低切换到高的位置。
3. Set both READY/SAFE switches to the Safe position. Set both INPUT/SEL.REP/REPRO switches to the Repro position, and press both OUTPUT SRL buttons (SRL On).
" x/ C; o/ E4 D: A3 U3。设置好/安全开关到安全位置。设置输入sel.rep/repro切换到复制的位置，并按输出SRL按钮（SRL对）。
# ]6 Z) d' z& B  P1 p. U# v0 k4. Play the 10 kHz portion of the Reproducer Calibraion tape and adjust the CH 1 REP EQ HF H (VR17) trimmer until the AC voltmeter indicates +4 dBu.
& E/ i# h3 w: I. F& N4 u" ?4。玩的放音机标定带10千赫的部分和调整CH 1代表情商HF H（vr17）微调直到交流电压表指示+ 4 dBu。
5. Adjust the CH 2 REP EQ HF H trimmer (VR27) until the AC Voltmeter indicates +4 dBu.
5。调整CH 2代表情商HF H微调（vr27）直到交流电压表指示+ 4 dBu。
! g% w0 s, h7 E6 G' K6. Thread the machine with the 7.5 ips Reproducer Calibration tape.
& ~4 W( u' N1 p) g% D' R2 U3 _6。螺纹7.5 IPS设备校准磁带机。
7. Set the SPEED LO/HI switch to the Lo position.
- x- q' ^/ ~3 z1 l+ h7。设置速度的高低位置切换到LO。
6 l, H$ L; E' x2 R3 a8 [: |2 j8. Play the 10 kHz portion of the Reproducer Calibration tape and adjust the CH 1 REP EQ HF L (VR19) trimmer until the AC voltmeter indicates -6 dBu.
$ _6 n* q+ \( ]8 l* v8。玩的放音校准带10千赫的部分和调整CH 1代表情商HF L（vr19）微调直到交流电压表指示6 dBu。
* ^# \" e  a" c. o8 NNOTE: 7.5 ips calibration tape equalization tones are recorded at 10 dB below
注：7.5 IPS校准带均衡音在10分贝以下记录
0 ^3 E# l- P& u% F8 kreference level.
参考水平。
2 F, f7 F. @- \" O, \. F7 s9. Adjust the CH 2 REP EQ HF L trimmer (VR29) until the AC voltmeter indicates -6 dBu.
9。调整CH 2代表情商HF L微调（vr29）直到交流电压表指示6 dBu。
5 f9 A1 ^6 R6 w1 s$ N1 H( l6 W% A

dianfan

emgc 发表于 2015-2-3 11:15
9 h* v) V; Y5 h0 B1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
7 ]6 }5 _- }' n1。连接交流电压表CH 1输出连接器。
& r4 J2 p' {& |5 X2. T ...

4 C4 L4 K" q) `& \( E7 D) q- ^刚到手一台 MX-55D ，真想调整一下， 看起来很专业，也很复杂。