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
( \# S6 x6 D6 b9 }+ x& x4 K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
' W& \6 |8 y% _: ~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.
, w; D. E8 L5 x2。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。
! N1 `0 I8 _+ r* G' ?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。
: B" S- l' I1 b7 g$ e  U7 H$ V4. Adjust the CH1 REPRO LEVEL trimmer (VR15) on the AUDIO AMPLIFIER PCB assembly so that the AC voltmeter indicates +4 dBu.
0 T  x3 A/ [7 J0 k' c3 g! |* \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。
6 m) W  l; e# R* a% c" v" w5. Repeat Steps 3 and 4 for channel 2 using the CH 2 REPRO LEVEL trim¬mer (VR25).
; @4 I9 ?! n6 E0 j9 Y- 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.
! {) q/ F/ O+ G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
Alignments. Due to the fringing effect which occurs at low frequencies,
5 o( g7 q5 l0 j7 `! t# t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.
% m5 i: F& z# s. z5 {% ]( F  Z0 g. s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。
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。
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).
+ J# [8 l% h* m% b3。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.
$ F7 n2 H* @2 V! r4。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。
1 w5 c( S; Z+ q9 j2 g5. Adjust the CH 2 REP EQ HF H trimmer (VR27) until the AC Voltmeter indicates +4 dBu.
& z( K2 ^* g% G5。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.
+ ~/ V6 e2 _" p) ^. n& f6。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。
- ?, e0 x* K0 R" l' y1 I8. 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.
9 Z3 ~2 \. S, R% ?% T7 k- K8。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
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。
. s. k6 s* }1 H5 Y" b

dianfan

emgc 发表于 2015-2-3 11:15
9 ]3 G: w0 h) Z3 e1. 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. T ...

刚到手一台 MX-55D ，真想调整一下， 看起来很专业，也很复杂。