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
* t# C3 O3 Y2 Q- F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
9 D1 _8 Y" W5 l( U" n& w原文出处：

1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
. s' u( ]8 D) N4 `1。连接交流电压表CH 1输出连接器。
. S9 Z" Y4 {% ?0 ]! d; \7 o0 G: q2. 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.
( D3 I- T3 t/ \) }2。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。
3. Play the 1 kHz at Reference Level portion of the Reproducer Calibration Tape.
# O+ z0 s& F1 ~' i. c% \- l5 Y3。在磁带放音机校准参考水平的部分发挥1千赫。
) T1 L' @% j0 f  x2 r- E4. Adjust the CH1 REPRO LEVEL trimmer (VR15) on the AUDIO AMPLIFIER PCB assembly so that the AC voltmeter indicates +4 dBu.
1 F& q0 F. g, E: d0 [' }" ]* x$ [4。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。
7 i# T- V7 k7 _$ L# H5. 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
equatizatioti 4.3.3.4再现调整
NOTE: This procedure adjusts the High Frequency Reproduce Equalization.
注意：本程序调整高频再现均衡。
The Low Frequency Reproduce Equalization is adjusted during the Record
6 X8 ~' R( S. I5 _) k7 Z* P低频再现均衡是在记录调整
! \9 t+ H4 z1 v4 j" \7 nAlignments. 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，
adjusting the Low Frequency Reproduce Equalization using the Reproduce
调整低频再现均衡使用复制
0 W0 o4 t7 H3 n1 gAlignment Tape does not produce accurate results.
调整带不产生精确的结果。
1. Thread the machine with the 15 ips Reproducer Calibration tape.
% i" c5 c! j: H; `; |0 \' I1。螺纹15 IPS设备校准磁带机。
2. Set the SPEED LO/HI switch to the Hi position.
2 A5 ^, U6 w1 m2 h2。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).
3。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）。
4. 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.
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。
$ P* x1 a5 a' {  B& w# i5. Adjust the CH 2 REP EQ HF H trimmer (VR27) until the AC Voltmeter indicates +4 dBu.
- q* d" X3 q/ [- b- W6 k5。调整CH 2代表情商HF H微调（vr27）直到交流电压表指示+ 4 dBu。
! M- Z6 d7 I  H9 Z7 P6 i1 H' D6. Thread the machine with the 7.5 ips Reproducer Calibration tape.
6。螺纹7.5 IPS设备校准磁带机。
7. Set the SPEED LO/HI switch to the Lo position.
2 l* L4 o4 N5 X4 b% A7。设置速度的高低位置切换到LO。
8. 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.
8。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。
& z- B8 Q, v0 T( @1 y) \NOTE: 7.5 ips calibration tape equalization tones are recorded at 10 dB below
" [4 ]) _: x$ {- Z注：7.5 IPS校准带均衡音在10分贝以下记录
reference level.
参考水平。
9. 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。
. G# `  M" }9 u

dianfan

emgc 发表于 2015-2-3 11:15
1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
) ?! a0 H6 D9 l, j1。连接交流电压表CH 1输出连接器。
2. T ...

& W% Z  z- s0 t: e$ Q8 K刚到手一台 MX-55D ，真想调整一下， 看起来很专业，也很复杂。