YamahaメーカーGA24/12の使用説明書/サービス説明書
ページ先へ移動 of 26
E MIXING CONSOLE Owner’s Manual.
ii GA32/12, GA24/12—Owner’s Manual Precautions 1. A void excessive heat, humidity , dust and vibration K eep the unit a wa y from locations wher e it is likely t o be exposed to high temperatur es or humidity — such as near radiators, sto ves, etc.
Introduction 1 GA32/12, GA24/12—Owner’s Manual Introduction Thank you for c hoosing the Y amaha GA32/12 or GA24/12 mixing console. Please read this manual thoroughly to tak e best advantage of the console and ext end its useful life.
2 Front Panel GA32/12, GA24/12—Owner’s Manual Front Panel Monaural input channels The GA32/12 {GA24/12} has 28 {20} monaural input channels. The y are locat ed on both sides of the master section and feature the same specifications. A Pad switch This switch is used to atten uat e input sig nals by 26 dB.
Monaural input channels 3 GA32/12, GA24/12—Owner’s Manual I ON switches These switches are used to turn on and off the sig nals rout ed fr om the input channel to MIX buses 1–4. J M5–M10 mix level controls These contr ols r oute the input channel signals to MIX buses 5–10.
4 Front Panel GA32/12, GA24/12—Owner’s Manual Stereo input channels The GA32/12 and GA24/12 pro vide two st er eo input channel modules. U se the paired INPUT 13/14 and 15/16 jacks (see page 17, rear panel 5 ) to input ster eo sig nals.
Stereo input channels 5 GA32/12, GA24/12—Owner’s Manual I PRE (Pre-fader) switches These switches are used to select pr e- or post-fader for sig nals sent from the st er eo input channel to MIX buses 5–10. Each switch is effectiv e for one pair of MIX buses:5/6, 7/8, or 9/10.
6 Master Section GA32/12, GA24/12—Owner’s Manual Master Section V ariable/Fix select section The GA32/12 and GA24/12 feature a GA (Gr oup/A ux) diversity function, which enables y ou to use the MIX bus 1–4 signals as group bus signals or A UX bus signals.
Mix section 7 GA32/12, GA24/12—Owner’s Manual ■ M1–M4 These modules function as output channels for either a group bus or an A UX bus, depending on the setting of the switches in the V ar iable/Fix select section.
8 Master Section GA32/12, GA24/12—Owner’s Manual Signal flow in the V ar iable/Fix select section and Mix section VARIABLE/FIX FIX MIX OUT 1 MIX INSERT I/O 1 to MTRX PFL PAN to AFL CTL R L R L ST.
ST (Stereo) section 9 GA32/12, GA24/12—Owner’s Manual ST (Stereo) section This section enables you t o c ontrol the ST bus signals output from the ST1 OUT jacks (see page 17, rear panel 9 ) and ST2 OUT jacks (see page 17, r ear panel J ).
10 Master Section GA32/12, GA24/12—Owner’s Manual AUX RETURN section The GA32/12 and GA24/12 pro vide four ster eo A UX returns. U se the paired A UX RETURN 1–4 L/R jacks (see page 17, rear panel 8 ) to input st er eo sig nals.
MATRIX section 11 GA32/12, GA24/12—Owner’s Manual Signal flow in the A UX RETURN section MA TRIX section The GA32/12 and GA24/12 pro vide two matrix modules that allow y ou to mix MIX buses 1–4 and ST bus signals at desired levels. M atr ix 1–2 signals are output in monaural via the MA TRIX OUT 1–2 jacks (rear panel K ).
12 Master Section GA32/12, GA24/12—Owner’s Manual C-R MONI (Control room monitor) section PHONES (headphones) section This section enables you t o c ontrol signals monitored via the C-R MONIT OR OUT jacks (see page 18, rear panel M ) and the PHONES jack on the front panel (C-R MONI section/ PHONES section 6 ).
TAPE IN section 13 GA32/12, GA24/12—Owner’s Manual T APE IN section This section enables you t o c ontrol line-level signals input from the T APE IN jacks. I nput signals from the T APE IN jacks can be r outed to the ST bus or directly to the C-R MONIT OR OUT jacks and PHONES jack.
14 Master Section GA32/12, GA24/12—Owner’s Manual T ALKBACK section This section is used to r out e talkback signals to the MIX buses and the ST bus. A INPUT jack This XLR -3-31 unbalanced input jack is used to c onnect a talkback microphone with an output impedance of 50–600 Ω .
METER SELECT section 15 GA32/12, GA24/12—Owner’s Manual METER SELECT section Y ou can select the sig nal sourc e t o be displayed in the M eter bridge section.
16 Rear Panel GA32/12, GA24/12—Owner’s Manual Rear Panel A INPUT A jacks 1–12, 17–32 {1–12, 17–24} These are balanc ed, XLR -3-31 monaural input jacks.
Rear Panel 17 GA32/12, GA24/12—Owner’s Manual E INPUT jacks 13–16 These are unbalanced phone jacks for the st ereo input channels, w ith nominal input levels ranging from –34 dB t o +10 dB . If you are using the st ereo input modules as monaural channels, connect a plug to 13L (MONO) or 15L (MONO) jack.
18 Rear Panel GA32/12, GA24/12—Owner’s Manual L ST INSERT I/O jacks These TRS phone jacks are used to insert an external pr ocessor into the ST bus, w ith nominal input/output levels of 0 dB.
GA Diversity Function 19 GA32/12, GA24/12—Owner’s Manual GA Diversity Function What is GA Diversity? GA Div e rsity is an output select function that allows y ou to use the MIX OUT jacks as group output jacks or A UX output jacks on the GA32/12 and GA24/12.
20 Specifications GA32/12, GA24/12—Owner’s Manual Specifications General specifications * T ur n ov er/Roll off frequency of shelv ing: 3 dB belo w maximum var iable level.
Input specifications 21 GA32/12, GA24/12—Owner’s Manual Input specifications Output specifications 1. Sensiti vity is the lowest level that will produce an output of +4 dB (1.23 V) or the nominal output level when the unit is se t to maximum gain.
22 Specifications GA32/12, GA24/12—Owner’s Manual Dimensions Unit: mm D: 705 H: 161 800 172 400 107 500 172 186 186 500 W: 1144 W: 1372 GA32/12 GA24/12.
Block and Level diagram 23 GA32/12, GA24/12—Owner’s Manual Block and Level diagram ST2 OUT ST1 OUT C-R MONITOR PHONES –60 –50 –40 –30 –20 –10 0 +10 Ch INSERT MIX OUT REC OUT TAPE IN ST.
VZ46530 R0 1 IP 28 Y AMAHA CORPORA TION P .O .Box 1, Hamamatsu, Japan 98 01 1500 NP Printed in T aiw an.
デバイスYamaha GA24/12の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Yamaha GA24/12をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはYamaha GA24/12の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Yamaha GA24/12の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Yamaha GA24/12で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Yamaha GA24/12を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はYamaha GA24/12の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Yamaha GA24/12に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちYamaha GA24/12デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
