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
, v: [9 {* {0 M是不是换了磁头？这金黄色磁头是不是国产的啊，

  V. F' C, n2 h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
! H" X% z8 f6 t8 `+ e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.
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。
, B0 G3 o+ \' {7 t! l3. Play the 1 kHz at Reference Level portion of the Reproducer Calibration Tape.
( p; s; f- |& ?- @8 S; j( t3。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.
1 ^; d: S% I( E1 ]' {+ d4。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).
/ j! k; V) o* u* _5。重复步骤3和4通道2用CH 2摄制水平配平¬MER（vr25）。
5 T* u* C& \4 X* @9 r& U4.3.3.4 Reproduce Equatizatioti Adjustment
equatizatioti 4.3.3.4再现调整
NOTE: This procedure adjusts the High Frequency Reproduce Equalization.
, n5 y9 P6 I; ^' h7 K2 X注意：本程序调整高频再现均衡。
: {" }8 y' j: sThe Low Frequency Reproduce Equalization is adjusted during the Record
低频再现均衡是在记录调整
8 E+ }6 `" n) |; j4 ]4 q: PAlignments. 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
1 b/ M9 w' t% q% @, x, T调整低频再现均衡使用复制
( m1 \, Z% f% B1 AAlignment Tape does not produce accurate results.
调整带不产生精确的结果。
% g6 M2 i7 g$ P& H& m& P1. Thread the machine with the 15 ips Reproducer Calibration tape.
1。螺纹15 IPS设备校准磁带机。
2. 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。
$ p5 e9 @9 m/ N( h; W# }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。
5. Adjust the CH 2 REP EQ HF H trimmer (VR27) until the AC Voltmeter indicates +4 dBu.
/ M# Q: Q+ }* S5。调整CH 2代表情商HF H微调（vr27）直到交流电压表指示+ 4 dBu。
" i- Y+ @8 X0 z6. 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.
7。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.
5 {6 e! F- [5 n# n8。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。
NOTE: 7.5 ips calibration tape equalization tones are recorded at 10 dB below
, L" ~  T/ D' r! a注：7.5 IPS校准带均衡音在10分贝以下记录
+ c' f2 I$ \; D2 q& _reference level.
; b' |' e  d4 F1 M* G3 [参考水平。
+ F$ C. i' ~! q- T9. 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。
; L+ e8 U& O$ A6 h7 V# d/ E

dianfan

emgc 发表于 2015-2-3 11:15
1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
0 u/ e) [9 e0 T4 {, C1。连接交流电压表CH 1输出连接器。
/ m" V8 `! C' _2. T ...

刚到手一台 MX-55D ，真想调整一下， 看起来很专业，也很复杂。