YamahaメーカーGF24/12の使用説明書/サービス説明書
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E Keep This Manual For Future Reference. MIXING CONSOLE Owner’s Manual.
WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As the colours o.
Precautions 3 —Owner’s Manual Precautions W arnings • Do not allow wate r to enter this unit or allo w the unit to bec ome wet. Fire or electr ical shock may result. • Connect this unit ’ s power c or d only to an A C out- let of the ty pe stated in this Owner’ s M anual or as marked on the unit.
4 Introduction —Owner’s Manual Introduction Thank you for pur chasing the Y amaha GF24/12, GF16/12, or GF12/12 mixing console. These mix ers pro vide an ample twelve outputs, and are suitable for a wide var iety of applications ranging from concert sound reinfor cement t o installed systems.
Front and rear panel 5 —Owner’s Manual Front and rear panel This section explains the names and functions of each section of the GF24/12, GF16/12, and GF12/12. The functionality of these mixers is grouped int o ten sections. These are the two chan- nel contr ol sections, seven mast er contr ol sections, and the rear panel connectors.
6 Front and rear panel —Owner’s Manual Channel controls ■ Mono input channels Her e are the 20 {12, 8} mono input channels of the GF24/12 {GF16/12, GF12/12}. The input channel section proc esses the signal from the input jacks of the connector section, and sends the result to the GR OUP buses, A UX buses, and the ST bus.
Channel controls 7 —Owner’s Manual 7 PRE switches These switches select whether the pre or post - fader signal w ill be sent to A UX buses 3–6. This setting is switched in pairs: A UX 3/4 and 5/6. W hen the switch is pressed in, the pre-fader sig- nal will be sent to the corresponding pair of A UX buses.
8 Front and rear panel —Owner’s Manual ■ Stereo input channels Her e are the tw o ster eo input channels pr ovided by the GF24/12, GF16/12, and GF12/12.
Channel controls 9 —Owner’s Manual 6 AUX controls (1–6) These knobs adjust the level at which the input channel signal is sent to the A UX buses 1–6. A UX contr ols 1 and 2 are fix ed at pre-fader , and A UX contr ols 3–6 can be switched between pre/post fader using the PRE switch ( 7 ).
10 Front and rear panel —Owner’s Manual Master controls ■ GROUP section This section individually controls the output sig- nal of GROUP buses 1–4.
Master controls 11 —Owner’s Manual ■ AUX section This section individually controls the output sig- nals of A UX buses 1–6. The signal that has passed through the A UX 1–6 output channels ca.
12 Front and rear panel —Owner’s Manual ■ STEREO/MONO section This section separately contr ols the STEREO OUT jacks (page 17, 3 in the connect or section) which are the main output of the mixer , and the MONO OUT jack (page 17, 2 in the connector section) which outputs a monaural mix of the STEREO OUT output.
Master controls 13 —Owner’s Manual ■ AUX RETURN section This section contr ols the two ster eo A UX returns. By using the L and R jacks of A UX RETURN 1/2 (page 19, A in the connect or section) in pairs, you can input st ereo signals. If only the L jack of A UX RETURN 1/2 is connected, this can be used as a monaural A UX return.
14 Front and rear panel —Owner’s Manual ■ T APE IN section This section contr ols the signal that is input from the T APE IN jacks (page 17, 4 in the connector section). The input signal from the T APE IN jacks can be sent directly fr om the ST bus, and can also be monitored fr om the C-R OUT jacks or PHONES jack.
Master controls 15 —Owner’s Manual 3 T APE IN switch This selects the signal that w ill be monitored b y the C-R OUT jacks and PHONES jack: either the PFL/AFL bus, or the T APE IN jacks. 4 C-R MONITOR LEVEL (control room moni- tor level) control This adjusts the level of the signal that is sent to the C-R OUT jacks.
16 Front and rear panel —Owner’s Manual ■ Meter section This is a peak level meter that sho ws (acc ording to the setting of the METER SELECT sw itch, page 14) the output levels of GR OUP buses 1–4, the ST bus, and the PFL/AFL bus, and the input level of the T APE IN jacks.
Connectors 17 —Owner’s Manual Connectors 1 AUX OUT jacks 1–6 These are TRS phone output jacks (balanc ed) that individually output the signals of A UX buses 1–6. N ominal level is +4 dB . These jacks can be connect ed to y our foldback system or to the inputs of external effect proc essors.
18 Front and rear panel —Owner’s Manual 5 REC OUT jacks These are phono jacks (unbalanc ed) that output the signal from the ST bus, with a nominal level of –10 dBV .
Connectors 19 —Owner’s Manual 9 INSERT I/O jacks 1–20 {1–12 on the GF16/ 12, 1–8 on the GF12/12} These are TRS phone input/output jacks for inserting external effect processors betw een the EQ and channel fader of a monaural input chan- nel.
20 Front and rear panel —Owner’s Manual B ST INSERT I/O jacks These are TRS phone input/output jacks for inserting external effect processors betw een the ST bus and the STEREO fader . The nominal input/output level is 0 dB. The pin w iring is shown in the following diagram.
Specifications 21 —Owner’s Manual Speci fi cations General speci fi cations • 0 dB is referenced to 0.775 Vrms. Frequency response 20 Hz–20 kHz +1 dB, –3 dB @+4 dB into 600 Ω (GROUP OUT , AUX OUT , ST OUT , MONO OUT) Input gain control: minimum T otal harmonic distortion Less than 0.
22 Specifications —Owner’s Manual Input speci fi cations Output speci fi cations Specifications are subject to c hange without prior notice. For E uropean M odel Pur chaser/U ser Information specified in EN55103-1 and EN55103-2. Inrush C urrent: 3A Conformed En vironment: E1, E2, E3 and E4 †1.
Dimensions 23 —Owner’s Manual Dimensions 300 119 D: 487 H: 157 119 119 349 119 119 463 119 119 349 351 GF12/12 GF16/12 GF24/12 Unit: mm W: GF24/12: 938 GF16/12: 701 GF12/12: 587.
24 Specifications —Owner’s Manual Block/Level Diagram HIGH MID LOW ST INPUT ST INPUT *2,*4 *1,*3 *2,*4 *1,*3 ON TO S T to PFL/AFL AFL AFL PFL to PFL/AFL to PFL/AFL PFL ST to ST to ST PFL PFL 1-2 t.
25 —Owner’s Manual Ch Input *1,*3 REC OUT MONO L R MONO POST STEREO OUT MONO OUT AFL ON (R) (L) Ch Input *2,*4 Ch Input *1,*3 Ch Input *2,*4 Ch Input Ch Input from from R METER SELECT PHONES (3 mW.
YAMAHA CORPORATION V329640 R3 1 IP 32 Pro Audio Di vision, #18/3 P .O. Box 3, Hamamatsu, 430-8651, J apan NP Printed in Taiwan.
デバイスYamaha GF24/12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 GF24/12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 GF24/12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 GF24/12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 GF24/12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 GF24/12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 GF24/12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 GF24/12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 GF24/12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。
