ArcamメーカーAVR400の使用説明書/サービス説明書
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A VR 400 Ser vi c e Ma nu al I s su e 1.
2 3 1 ITEM NO. PART No. DESCRIPTION QTY 1 TGP3523 / TGP3524 FASCIA ASSEMBLY BLACK / SILVER 1 2 TGP3526 / TGP3527 COVER BLACK / SILVER 1 3 HA4V06S TORX SCREW M4 x 6 4 80 5 5 TOLERANCES UNLESS 0.
1 2 3 ITEM NO. PART No. DESCRIPTION QTY 1 TGP3539 TRANSFORMER - POWER 1 2 FAN 80 x 80 x 25mm 2 3 FAN MOUNTING BRACKET 2 80 5 5 TOLERANCES UNLESS 0.00 ± 0.
1 4 2 3 5 SOLDERED TO POWER AMP PCB ITEM NO. PART No. DESCRIPTION QTY 1 TGP3534 CHASSIS ASSY 1 2 TGP3535 FRONT PCB ASSY 1 3 TGP3538 POWER AMP PCB ASSY 1 4 TGP3525 FOOT ASSY 4 5 TGP3540 TRANSFORMER - STANDBY 1 80 5 5 TOLERANCES UNLESS 0.00 ± 0.10 OTHERWISE STATED 0.
1 4 2 3 5 SOLDERED TO POWER AMP PCB ITEM NO. PART No. DESCRIPTION QTY 1 TGP3534 CHASSIS ASSY 1 2 TGP3535 FRONT PCB ASSY 1 3 TGP3538 POWER AMP PCB ASSY 1 4 TGP3525 FOOT ASSY 4 5 TGP3540 TRANSFORMER - STANDBY 1 80 5 5 TOLERANCES UNLESS 0.00 ± 0.10 OTHERWISE STATED 0.
A VR400 P ow er Amplier C ircu it Descr iptio n Apa rt from the po wer tra n sform er , t he po we r am pli er e lectro ni cs is fu ll y c on tai ned on t he larg e dou ble s ided PTH P CB a nd heats in k loca ted at t he botto m of t he A VR400.
add it ion al f eedbac k fur the r red uc es high fr e qu ency di st ortion a nd cr osso ver di stortion wi th in t he audi o band. These st ages a re partial ly decou pled fr om t he V cc and V ee powe r su ppl ie s by D 5 1 30 /R5 1 30 / C5 1 30 a nd D 5 1 29 /R5 1 29 / C5 1 2 9 re spectiv ely .
1) An y ampl ie r ch an nel pu ll s curr en t th ro ugh t he SO A _PRO TEC T li ne f or lon g eno ugh t o char ge up ca pac it ors C58 7 1 an d the n C5 8 72 so th a t Q5 87 4 turn s on.
T wo s ec ond ary wind ing s from the t oroid al po wer tra n sform er ar e fed in via C N63 . P in s 1 , 2 and 3 c on - nect to a c en tre-tapped sec ond ar y wind in g used t o genera te appr ox + /- 2 0VDC vi a the b rid ge recti er diod es D60 3/ 3 / 4/ 5 an d the 2 , 200μF 3 5V rese rvoir c apa ci to rs C 609 a nd C 6 1 0.
It c ommun ica tes wi th t he In put Board v ia C N 1 0 1 and a 3 1 wa y ribbon cab le . Other c onnectors c ompri se CN 9 4 wh ic h c onn ects to two sec ondar ies o f th e ma in po we r tra nsforme r and t he hard w ir ed BN 9 3 whi ch c onnects up th e da ugh ter boar d.
the sa me ma nner as d esc ri bed abo v e for RL 902 ) then th e L fron t input i s rout ed t o the l ow n oi se micr o - phon e am pli er IC 903 . This oper at es as two ca sca ded virtua l earth ampl i ers, e ac h wit h a v olt age ga in of a ppr ox im at ely 2 1 (R96 1 /960 a nd t hen R 96 5 /96 2 ) .
IC 1 0 1 has one 8 c ha nn el va ri able l ev el outpu t bu s la bell ed V OL 0 1 thro ugh t o VOL 08. Capac it ors C2 95-8 and C 23 1 - 4 oa t the g ro un d end s of t he a ss oci a ted i n te rn .
IC 1 4 3 is t he Cirru s Logic CS4 2548. It inc lu des a n SPD IF rec eive r , 2 cha nne l ADC a nd 8 c ha nne l D A C. Only one i npu t (pi n 43 ) of the S P DIF r ec eiv er is u sed ; th e ot hers a re g ro und ed.
IC 1 4 1 als o ha s two sets o f I 2S data o ut puts. D A 1 is a n 8 ch an nel I 2S si gna l (pin s 4 7 , 48, 49 a nd 5 1 ) shown as pa rt of the bu s DA 0(04 :0 7) . Thi s feeds th e in put o f th e sec ond D SP IC 1 4 2 ( on pi n s 23 , 2 4, 2 6 and 2 7) .
rog at in g the U SB soc k et an d in ser tio n of a c lea n USB st ic k con tai ni ng on ly the syst em rm wa re wi ll initiate a comp lete re cover y automatic ally . IC 1 6 4 is a M in iL ogi c ML6 1 C28 2P R preci s ion v oltage det ec to r , with a t hr es hol d of 2.
the n ece s sary lev el s hiftin g. IC 7 3 inc ludes i nt ernal c ha rg e pum ps t o con vert CMO S logi c le v el in puts to + / -5V RS 23 2 lev el outpu ts and + / - 25V t oleran t RS2 3 2 inpu ts to C MO S logic le v el out puts. Maxim um ra ted s peed is 300kb/ sec.
The HDM I in put S OC, IC 90 1 , is a 1 44 pin L QFP A na log De vic es AD V30 1 4B. Th is i s a 4 int o 1 HDM I 1 .4a mu lt ipl exe r an d is c onnected t o in puts 4 and 5 (VC R and PVR ) on t he r ea r pane l (JK 9 5 and J K96 ) . The ot her two i npu ts on IC 90 1 are n ot u sed.
Q9 1 4 and Q9 1 5 ( on the u nde rsi de of t he P CB ) send B YP ASS_ON a nd BYP ASS_OF F logic s ign als fro m IC 90 6 t o the a rra y of 4 x 20-bit non-in vertin g li ne dr iv er /bμFfe rs wit h tr i-sta tabl e out puts , IC 9 1 1 /9 1 2 and IC 9 1 5/ 9 1 6.
A V R400 Analogue Video B oard Thi s i s c onn ected in to the r est o f th e syst em vi a th e HDM I boar d us in g C N 30 1 . The cir cuit r y is s hown on sheet 1 3 of the schemat ic diag ram.
15 2326 S C M Z A VR 40 0 ( F RO N T) J. I .H B 1 2 3 4 5 D C B A 6 C D A A PP R OV E C HE C K D E SI G N D RAW I NG N O 1 1 M OD E L S HEE T 1 S C HE M A TI C D I A G R A M R E VIS ION 1 2 3 4 5 6 7 .
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6 15 10 . 11 .1 6 A VR 40 0 S .K B 1 2 3 4 5 D C B A 6 C D A A PP R OV E C HE C K D E SI G N DR A W I NG N O M OD E L S HEE T S C HE M A TI C D IA G R A M R E VIS IO N 1 2 3 4 5 6 7 HP D ET +5 V GN D .
15 7 10 . 11 .1 6 A VR 40 0 S .K B 1 2 3 4 5 D C B A 6 C D A A PP R OV E C HE C K D E SI G N DR A W I NG N O M OD E L S HEE T S C HE M A TI C D IA G R A M R E VIS IO N 1 2 3 4 5 6 7 SB L/ S B R SL /SR.
15 8 A VR 40 0 10 . 03 .3 0 S .K S C A L E R B 1 2 3 4 5 D C B A 6 C D A A PP R OV E C HE C K D E SI G N DR A W I NG N O M OD E L S HEE T S C HE M A TI C D IA G R A M R E VIS IO N 1 2 3 4 5 6 7 RG B 1.
HD ( 30 M HZ ) M ODE : H IGH SD ( 13 . 5M HZ) M ODE : L OW CLK 1 S1 :HI GH S1 :LO W ICL K 2*I CLK CL OCK D OUB LE R ( 13 .5 M *2 = 27 M ) 9 15 10 . 11 .1 6 A VR 40 0 7 6 5 4 3 2 1 R E VIS IO N S C HE M A TI C D IA G R A M S HEE T M OD E L D R A W I NG N O D E SI G N C HE CK A PP R OV E A D C 6 A B C D 5 4 3 2 1 B S .
15 10 10 . 11 .1 6 A VR 40 0 S .K P OW E R & C O NN E C TO R B 1 2 3 4 5 D C B A 6 C D A A PP R OV E C HE C K D E SI G N DR A W I NG N O M OD E L S HEE T S C HE M A TI C D IA G R A M R E VIS IO N 1 2 3 4 5 6 7 TO VID EO D C / D C R E G U ALTO R TO INP UT TO POW ER DD R M EM _R EG _ 2 .
M P F L F R S R S L C E N S B L S B R 1 1 1 5 1 D A C 3 2 5 4 D C B A 7 6 5 4 3 2 1 R E V IS IO N S C H E M A T I C D I A G R A M S H EE T AV R 40 0 M O D E L 2 1 D R AW I N G N O D E S IG N C H E C K.
M P 1 2 1 5 1 D A C 3 2 5 4 D C B A 7 6 5 4 3 2 1 R E V IS IO N S C H E M A T I C D I A G R A M S H EE T AV R 40 0 M O D E L 2 2 2329 S C M Z D R AW I N G N O D E S IG N C H E C K A PP R OV E B (A M P.
3 13 15 10 . 11 .1 7 1 A VR 40 0 2330 S C D Z ( VI DE O) L .J. Y B 1 2 3 4 5 D C B A 6 C D A A PP R OV E C HE C K D E SI G N DR A W I NG N O M OD E L S HEE T S C HE M A TI C D IA G R A M R E VIS IO N .
2 14 10 . 11 .1 7 3 15 A VR 40 0 2330 S C D Z 7 6 5 4 3 2 1 R E VIS IO N S C HE M A TI C D IA G R A M S HEE T M OD E L D R A W I NG N O DE S IG N C HE C K A PP RO V E A D C 6 A B C D 5 4 3 2 1 B L .
3 3 15 15 B 1 2 3 4 5 D C B A 6 C D A A PP R OV E C HE CK D E SI G N D RAW I NG N O M OD E L S HEE T S C HE M A TI C D I A G R A M R E VIS ION 1 2 3 4 5 6 7 S C R E W M A R K 10 .
デバイスArcam AVR400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:
Arcam AVR400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Arcam AVR400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。Arcam AVR400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。Arcam AVR400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。
Arcam AVR400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Arcam AVR400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、Arcam AVR400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Arcam AVR400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。