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
是不是换了磁头？这金黄色磁头是不是国产的啊，

' B9 U+ a* Z6 e# M. F* r0 W; }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
1 m7 i* i" e4 x3 G$ b* Z" T原文出处：

1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
. j( s3 I. D# d6 X& l: r1。连接交流电压表CH 1输出连接器。
' O% Q2 N% W- t8 q% ]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.
& j: u- S6 h& `( c, G1 h7 K: k. a2 g2。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。
7 Z; ]) j- t1 j/ A' i3. Play the 1 kHz at Reference Level portion of the Reproducer Calibration Tape.
( O! p( D# [& a0 T/ @6 x- n3。在磁带放音机校准参考水平的部分发挥1千赫。
. ]% e1 s1 w. {5 A9 J, t4. Adjust the CH1 REPRO LEVEL trimmer (VR15) on the AUDIO AMPLIFIER PCB assembly so that the AC voltmeter indicates +4 dBu.
$ V( M1 P6 C1 F7 T4。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。
5. Repeat Steps 3 and 4 for channel 2 using the CH 2 REPRO LEVEL trim¬mer (VR25).
- t! |0 }* |- b' a6 y5。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.
3 c( [9 ?! g% ]6 s" t注意：本程序调整高频再现均衡。
The Low Frequency Reproduce Equalization is adjusted during the Record
低频再现均衡是在记录调整
' q" C" E; Z1 c) ^Alignments. Due to the fringing effect which occurs at low frequencies,
# S: ?3 A2 O  Y+ h3 z% ?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
" {7 I8 B( d& b1 ]% l6 n2 ]5 X% m5 KAlignment Tape does not produce accurate results.
调整带不产生精确的结果。
$ G( ?. e0 _& E3 |1 i1. Thread the machine with the 15 ips Reproducer Calibration tape.
. T9 H9 }7 m( n, V1。螺纹15 IPS设备校准磁带机。
4 D* u7 E) ^" F) j& F8 v0 h2. Set the SPEED LO/HI switch to the Hi position.
2。设置速度的高低切换到高的位置。
+ K1 A2 v6 L- o& l( a3. 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。
+ A* w0 b* X# B$ T3 K3 ?/ o$ g5. 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。
6. 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.
% m/ x- Z1 d  e8 t$ Y3 _  ]+ S# L. f- b7。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。
* _% g0 J2 j6 `% T" F( vNOTE: 7.5 ips calibration tape equalization tones are recorded at 10 dB below
+ ^, V" K* u2 C4 F6 R" H注：7.5 IPS校准带均衡音在10分贝以下记录
2 s8 s1 i9 j9 W8 Ureference level.
* h, j6 O. p; {  c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。
- C# u5 s& B/ A8 b1 n1 j

dianfan

emgc 发表于 2015-2-3 11:15
1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
" f0 @" T9 K9 U: ^( C5 o* w: A1。连接交流电压表CH 1输出连接器。
) E4 ?2 [3 _7 N1 ?, W2. T ...

' C2 _! o5 \3 M0 X刚到手一台 MX-55D ，真想调整一下， 看起来很专业，也很复杂。