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
1 M5 ~: d3 U" u' ^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
原文出处：

1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
1。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.
: }' L) R/ K  j0 i( g( r0 j2。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.
3。在磁带放音机校准参考水平的部分发挥1千赫。
- S" F; G$ n' L% @. g' u6 b: W+ z4. Adjust the CH1 REPRO LEVEL trimmer (VR15) on the AUDIO AMPLIFIER PCB assembly so that the AC voltmeter indicates +4 dBu.
8 n5 g* n5 ~5 m, j7 u, V1 I/ {6 j4。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).
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
- t# j# U, P, c5 kNOTE: This procedure adjusts the High Frequency Reproduce Equalization.
/ F; U) b# q8 ~( O7 y9 x注意：本程序调整高频再现均衡。
The Low Frequency Reproduce Equalization is adjusted during the Record
6 Q( w! j; ~' P; T9 T: c低频再现均衡是在记录调整
Alignments. Due to the fringing effect which occurs at low frequencies,
4 P0 v5 u+ o' D! y0 `% ?! y. {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
Alignment 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.
6 Z, [! y% ?. ^; Z- V5 K, M1。螺纹15 IPS设备校准磁带机。
( v: |0 @, Z- K! B/ M2. Set the SPEED LO/HI switch to the Hi position.
, F" m( t2 m1 V6 d" @" {" R2。设置速度的高低切换到高的位置。
9 o- t+ Q, d/ l+ b% k$ e, |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.
5 L0 j( B4 o# p2 V& J5 H8 m4 A2 _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。
6. Thread the machine with the 7.5 ips Reproducer Calibration tape.
" v! q  h: Q- I' N7 m6。螺纹7.5 IPS设备校准磁带机。
7. Set the SPEED LO/HI switch to the Lo position.
  i9 Y  G4 k' l# N. a5 _6 F' `. d7。设置速度的高低位置切换到LO。
, a8 k% N. Q6 W9 x  x8. 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.
3 r9 z. s4 _1 l: A  a2 i- _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。
. @. r! F! V* u& i! `$ N# ANOTE: 7.5 ips calibration tape equalization tones are recorded at 10 dB below
/ y. q/ Q0 Q6 J# k; O0 m/ X注：7.5 IPS校准带均衡音在10分贝以下记录
) h. x' t1 ?  i* k- h+ c& q) areference level.
' H7 ?: ~6 N& L- C3 {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。

dianfan

emgc 发表于 2015-2-3 11:15
3 S- c2 G6 B! D& |1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
( d( }6 e' t5 m" _3 k1。连接交流电压表CH 1输出连接器。
2. T ...

# [8 D1 v" S! q3 L7 R刚到手一台 MX-55D ，真想调整一下， 看起来很专业，也很复杂。