AdcomメーカーGFA-7607の使用説明書/サービス説明書
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OW NE R’ S MA NU AL G F A - 7 6 0 5 & G F A - 7 6 0 7 Mu lt ic ha nn el H ig h- Cu rr en t P ow er A mp li e rs.
W E L C O M E 2 Dear fe llow ADCOM produc t owner , W elcome to the ADCOM fami ly! For more than twenty years, A DCOM products hav e delive red excelle nt perform ance and value for custom ers around the wor ld.
T A B L E O F C O N T E N T S WELCOME ........................................ 2 SAFETY INFORMA TION ........................... 4 DESCRIPTION OF UNIT GF A-7605 FEA TURES .............................. 5 GF A-7607 FEA TURES ...........................
THE FOLLOWING PRECAUTIONS AND SAFETY INSTRUCTIONS ARE REQUIREMENTS OF UL AND CSA SAFETY REGULATIONS Warning: To reduce the risk of re or electric shock, do not expose this unit to rain or moisture.
GF A-7605 FEA TURES • P recision-matched devices used throughout the signal path. • 100,000 µF of power supply-lter capacitance to optimize transient response. • Independent power supplies for each channel. • Fewer gain stages improve signal reproduction accuracy .
INTROD UCTION Congratul ations on your decision to purc hase the GF A-7605 or GF A-76 07 multichannel power ampl ier . The GF A-7605 and GF A-7607 have been desig ned to be high performance and musically accur ate in a congur ation specicall y designed to integrate with any home theater processor .
7 CONNEC TING T HE GF A-7605 /7607 When connecting the amplier to the loudspea ker , it is vital to maintain proper polarity (positive to positive, negative to negative). On the GF A-7605/76 07, the posit ive term inal is color coded RED and labeled “+,” and the negative is color coded BLACK and labeled “-.
G F A 7607 distortion alert > LF C RF RS R B thermal protection > LB L S GF A-76 07 FRO NT P AN EL ( 6 ) ( 8 ) ( 9 ) ( 7 ) GF A-76 07 REA R P ANEL ( 2 ) ( 1 ) ( 5 ) ( 4 ) ( 3 ) (1) Input Jacks (.
9 DESC RIPTIO N OF U NIT : REA R P ANEL (1) Inputs The audio inpu ts fo r the GF A-7 605 a nd GF A-760 7 are thr ough h igh-q ualit y , g old-p lated RCA jac ks to minim ize hig h-freq uency loss es, no ise, etc. They will acce pt sta ndard RCA-t ype p lugs, one f or ea ch of the c hanne ls.
10 Since the fuse has a cera mic body and you ca nnot visu ally examin e the fus e element it is the refore sug gested th at you r eplace it with an id entical s ubstitute or bring t he fuse to yo ur ADCOM dealer so they may check its integrity . T o replac e the fus e, insert it in the back of t he fuse-ho lder cap.
Left Front Right Surround Right Back Left Back Left Surround Center Right Front curren t phase a ngle or th e reactan ce of the loudspeake rs which the ampli er is dri ving. Som etimes, wh en the ampli er is in use, the L EDs may o ccasionall y icker during high vol ume listen ing, part icularly i f you are driving low im pedances.
RESO L VING P ROBLEMS Use th e chart b elow to so lve commo n situatio ns that do n’t requi re profess ional att ention. If the step s stated i n POSSIBLE SOLUT ION do not resolve your probl em, then p lease con tact your ADCOM Deal er or cal l the ADCOM Cu stomer Ser vice Depart ment.
For Fax inquires, please include a return Fax number for the reply. When calling or writing about your GF A-7605/7607, be sure to note and refer to its serial number as well as the date of purchase and the dealer from whom it was purchased. In any communications to us, please include a daytime phone number where we may reach you.
GF A-7605 SPECIFICA TIONS Power Rating (To EIA/CEA-490-A Requirements) 125 Watts continuous average power per channel into 8 ohms at any frequency between 20Hz and 20kHz with all channels driven at less than 1.
GF A-7607 SPECIFICA TIONS Power Rating (To EIA/CEA-490-A Requirements) 125 Watts continuous average power per channel into 8 ohms at any frequency between 20Hz and 20kHz with all channels driven at less than 1.
ADCOM A division of Klein T echnology Group, LLC 8551 East Anderson Drive, Suite 105 Scottsdale, Arizona 85255 V oice: (480) 607-2277 Fax: (480) 348-9876 http://www .
デバイスAdcom GFA-7607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：
Adcom GFA-7607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Adcom GFA-7607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。Adcom GFA-7607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。Adcom GFA-7607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。
Adcom GFA-7607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Adcom GFA-7607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、Adcom GFA-7607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Adcom GFA-7607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。
