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
2 ~7 q& I9 V/ h" @% V* E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
# j, k8 @, w# k" s2 ]9 Y1 ~原文出处：

1. Connect the AC Voltmeter to the CH 1 OUTPUT connector.
: A& N/ L  s7 R! o8 q! A3 r1。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。
( c- l- y; [# k# |# _) k2 z3. 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。
8 C! a  J% b0 m4. Adjust the CH1 REPRO LEVEL trimmer (VR15) on the AUDIO AMPLIFIER PCB assembly so that the AC voltmeter indicates +4 dBu.
. E5 a& g/ E1 P% c* n4。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).
: c6 x8 D% k; d3 t8 [: _5。重复步骤3和4通道2用CH 2摄制水平配平¬MER（vr25）。
' e9 D0 f3 w4 {: C  k0 @: C4.3.3.4 Reproduce Equatizatioti Adjustment
3 d" w# j5 b7 D% Kequatizatioti 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。
, Y6 h, b. K- l* S# [! fThe Low Frequency Reproduce Equalization is adjusted during the Record
低频再现均衡是在记录调整
1 g/ |+ y3 l4 N% yAlignments. 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，
' s2 ?: t5 V4 K2 y! ?adjusting the Low Frequency Reproduce Equalization using the Reproduce
调整低频再现均衡使用复制
( ]5 Y* j5 r& d1 S# ?  k5 j" tAlignment Tape does not produce accurate results.
0 {( m- m+ K7 N/ z( m- m% i调整带不产生精确的结果。
1. Thread the machine with the 15 ips Reproducer Calibration tape.
6 A  i$ i6 h2 ]+ R- V! X/ u1。螺纹15 IPS设备校准磁带机。
: o( e) V2 F9 F- ]7 h) z9 w/ a+ a! Y2. 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。
0 H7 J  b( F  \3 j3. 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).
- O# g7 [6 d9 G2 {; s3。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）。
2 w" U* Z* u1 n3 v( b4. 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.
* E9 y9 u9 k# N" ]4 H4。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。
3 a* Z" P# i2 b% x" N( i; 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.
! U, C. F" T) E- W9 B( L7。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。
& S: W6 h( _7 A) j0 h- U3 A" D! ANOTE: 7.5 ips calibration tape equalization tones are recorded at 10 dB below
9 ~- o8 z; W/ `$ D' @5 r: _2 K注：7.5 IPS校准带均衡音在10分贝以下记录
reference level.
) n2 e: [  |. F# w* [: y8 }参考水平。
  Y+ M" i  F4 v! [. f% |: E, y. K9. 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
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。
7 W. n# K. N" A; w% G( R2. T ...

刚到手一台 MX-55D ，真想调整一下， 看起来很专业，也很复杂。