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Yamaha AX-497 Servise Manual

Summary of AX-497

  • Page 1

    Service manual this manual has been provided for the use of authorized yamaha retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically yamaha products, are already known and understood by the users, and have therefore no...

  • Page 2

    2 ax-497 ax-497 ■ to service personnel 1. Critical components information components having special characteristics are marked z and must be replaced with parts having specifications equal to those originally installed. 2. Leakage current measurement (for 120v models only) when service has been comp...

  • Page 3

    3 ax-497 dpx-1200 ax-497 ■ impedance selector caution: 1. As the melting point temperature of the lead free solder is about 30 ° c to 40 ° c (50 ° f to 70 ° f) higher than that of the lead solder, be sure to use a soldering iron suitable to each solder. 2. If lead solder must be used, be sure to rem...

  • Page 4

    4 ax-497 ax-497 ■ rear panels ▼ u, c models ▼ r model ▼ t model www. Xiaoyu163. Com qq 376315150 9 9 2 8 9 4 2 9 8 tel 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 q q tel 13942296513 qq 376315150 892498299 tel 13942296513 qq 376315150 892498299 http://www.Xiaoyu163.Com http://www.Xiaoyu163.Com.

  • Page 5

    5 ax-497 dpx-1200 ax-497 ▼ k model ▼ a model ▼ b model www. Xiaoyu163. Com qq 376315150 9 9 2 8 9 4 2 9 8 tel 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 q q tel 13942296513 qq 376315150 892498299 tel 13942296513 qq 376315150 892498299 http://www.Xiaoyu163.Com http://www.Xiaoyu163.Com.

  • Page 6

    6 ax-497 ax-497 ▼ g, e models ▼ l model ▼ j model www. Xiaoyu163. Com qq 376315150 9 9 2 8 9 4 2 9 8 tel 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 q q tel 13942296513 qq 376315150 892498299 tel 13942296513 qq 376315150 892498299 http://www.Xiaoyu163.Com http://www.Xiaoyu163.Com.

  • Page 7

    7 ax-497 dpx-1200 ax-497 general / 総合 power supply / 電源電圧 u, c models . . . . . . . . . . . . . . . . . . . . . . . . . . Ac 120 v, 60 hz r model . . . . . . . . . . . . . Ac 110/120/220/230-240 v, 50/60 hz t model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ac 220 v, 50 hz k model . ....

  • Page 8

    8 ax-497 ax-497 unit : mm (inch) dimensions / 寸法図 ■ internal view q main (2) p.C.B. W main (4) p.C.B. (r, l models) e main (5) p.C.B. R main (1) p.C.B. T main (6) p.C.B. Y main (3) p.C.B. U function (4) p.C.B. I function (5) p.C.B. O function (12) p.C.B. !0 function (7) p.C.B. !1 function (6) p.C.B....

  • Page 9

    9 ax-497 dpx-1200 ax-497 ■ disassembly procedures / 分解手順 ･ 番号順に部品を取り外してださい。 ･ ac電源コンセントから、電源コードを抜いてください。 1. トップカバーの外し方 a. Q のネジ4本、 w のネジ1本、 e のネジ4本を外します。 （fig. 1） b. トップカバーを後方へスライドさせ取り外します。 （fig. 1） 2. フロントパネルユニットの外し方 a. Inputツマミを取り外します。 b. R のネジ1本を外し、サポートトップを取り外します。 （fig. 1） c. T のネジ7本を外し、 フロントパネルユ...

  • Page 10

    10 ax-497 ax-497 5. アンプユニットの外し方 a. インピーダンスセレクターを止めている o のネジ1本を 外します。 （fig. 2） b. スピーカーターミナルを止めている !0 のネジ2本を外し ます。 （fig. 2） c. !1 のネジ2本を外し、 main (4) p. C.B.を取り外します。 （fig. 2） （r, l仕向けのみ） d. !2 のネジ2本と !3 のネジ2本を外します。 （fig. 2） e. コネクターcb3とcb151を外します。 (fig. 2) f. アンプユニットを取り外します。 （fig. 2） 5. Removal of amp...

  • Page 11

    11 ax-497 dpx-1200 ax-497 ■ adjustment / 調整 ● アイドリング電流の確認 1. 電源投入直後、r64 (l ch)/r65 (r ch)の端子間の電圧を測 定し、0.1mv から 10.0mv の間であることを確認してく ださい。 2. 電圧が 10mv を越えている場合は、r51 (l ch)/r52 (r ch) の抵抗をカットし、電圧を再確認してください。 3. 60分後、電圧が0.25mv〜 30.0mv であることを確認して ください。 ● confirmation of idling current 1. Right after the p...

  • Page 12

    12 ax-397 ax-397 ic301 : m38503g4a-101fp (function (1) p.C.B.) 8-bit microprocessor ■ ic data / icデータ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 v cc v ref av ss p4 4 /int 3 /pwm p4 3 /int 2 /s cmp2 p4 2 /int 1 p4 1 /int 0 p4 ...

  • Page 13

    13 ax-497 dpx-1200 ax-497 ■ block diagram 10db – 10db phono cd/dvd sp a sp b phones tuner au x t ape in t ape out md in md out cd/dvd direct amp rec out selector input selector phono eq amp cd/dvd direct amp m oto r driver on on on off off off 33.5db m main vr 10db r yps loudness balance t one contr...

  • Page 14

    14 ax-497 ax-497 ■ pin connection diagram / 半導体外形図 lm61ciz 1: +vs 2: vout 3: gnd ● ics nju7312am nju7313am 30 15 1 16 8 4 1 5 njm2068md-te2 m38503g4a-101fp 42 21 1 22 lb1641 1 10 1ss133 1ss139 1ss140 1ss176 1ss270a hzs12b2td hzs162td ● diodes 1ss355 ma8039-l ma8047-l ma8051-m ma8062-m ma8068-l 2sa93...

  • Page 15

    A b c d e f g h 1 2 3 4 5 6 ax-497 15 ■ printed circuit board (foil side) function (1) p.C.B. (side a) function (1) p.C.B. (side b) lead free solder used pure direct cd/dvd direct amp function (11) cb641 main (3) cb201 function (8) cb601 function (4) w451 main (5) cb221 main (6) cb226 function (6) c...

  • Page 16

    A b c d e f g h 1 2 3 4 5 6 ax-497 16 ■ printed circuit board (foil side) tuner in out in out aux md tape function (1) cb302 1 4 8 5 1 4 8 5 1 4 8 5 1 4 8 5 1 15 30 16 1 15 30 16 phono cd/dvd 1 4 8 5 1 4 8 5 function (5) p.C.B. (side a) function (5) p.C.B. (side b) lead free solder used function (4)...

  • Page 17

    A b c d e f g h 1 2 3 4 5 6 ax-497 17 ■ printed circuit board (foil side) function (6) p.C.B. (side a) function (7) p.C.B. (side a) balance rec out loudness treble bass main (1) w2 function (1) cb304 1 4 8 5 1 4 8 5 function (6) p.C.B. (side b) lead free solder used phones speakers a b main (1) cb1 ...

  • Page 18

    A b c d e f g h 1 2 3 4 5 6 ax-497 18 ■ printed circuit board (foil side) function (10) p.C.B. (side a) function (10) p.C.B. (side b) lead free solder used function (11) p.C.B. (side a) cd/dvd direct amp pure direct function (1) cb303 power main (2) w151 function (12) p.C.B. (side a) function (9) p....

  • Page 19

    A b c d e f g h 1 2 3 4 5 6 ax-497 19 ■ printed circuit board (foil side) lead free solder used q23a q23c q24a q24c speakers impedance selector r b a l function (1) cb306 function (6) cb532 function (7) cb581 power transformer main (2) cb151 main (3) p.C.B. (side a) main (1) p.C.B. (side a) circuit ...

  • Page 20

    A b c d e f g h 1 2 3 4 5 6 ax-497 20 ■ printed circuit board (foil side) lead free solder used main (2) p.C.B. (side a) main (4) p.C.B. (side a) r, l models circuit no. F151 r152, 153 c151, 152 q152, 153 d152 cb152, 153 j151 j152 j x x x x x x o o x: not used o: used/applicable u, c o x x x x o o x...

  • Page 21

    A b c d e f g h 1 2 3 4 5 6 i j k 7 8 ax-497 21 ■ schematic diagram (function) * all voltages are measured with a 10m Ω /v dc electronic volt meter. * components having special characteristics are marked z and must be replaced with parts having specifications equal to those originally installed. * s...

  • Page 22

    A b c d e f g h 1 2 3 4 5 6 i j k l 7 8 ax-497 22 ■ schematic diagram (main) * all voltages are measured with a 10m Ω /v dc electronic volt meter. * components having special characteristics are marked z and must be replaced with parts having specifications equal to those originally installed. * sch...

  • Page 23: Parts List

    23 ax-497 dpx-1200 ax-497 abbreviations in this list are as follows : c.A.El.Chp : chip alumi. Electrolytic cap c.Ce : ceramic cap c.Ce.Array : ceramic cap array c.Ce.Chp : chip ceramic cap c.Ce.Ml : multilayer ceramic cap c.Ce.M.Chp : chip multilayer ceramic cap c.Ce.Safty : recognized ceramic cap ...

  • Page 24

    24 ax-497 ax-497 ref. No. Part no. Description remarks markets 部品名 rank new parts (新規部品) * note) those parts marked with “#” are not included in the p.C.B. Ass'y. （マーク＃の部品は、基板に含まれません） * wg029900 p.C.B. Function ＰＣＢ ファンクション cb301 v7827600 socket 9p se tuc series コネクターソケット cb302 vk015400 cn.Bs.Pin 13p...

  • Page 25

    25 ax-497 dpx-1200 ax-497 ref. No. Part no. Description remarks markets 部品名 rank new parts (新規部品) * note) those parts marked with “#” are not included in the p.C.B. Ass'y. （マーク＃の部品は、基板に含まれません） c515‑516 uu337100 c.El 10uf 16v ケミコン ＲＡ３ 01 c517‑518 uu338100 c.El 100uf 16v ケミコン ＲＡ３ 01 c519‑520 vi715900 ...

  • Page 26

    26 ax-497 ax-497 ref. No. Part no. Description remarks markets 部品名 rank new parts (新規部品) * note) those parts marked with “#” are not included in the p.C.B. Ass'y. （マーク＃の部品は、基板に含まれません） q308 vp872700 tr 2sc4488 s,t トランジスタ 01 * q309 vv912400 tr 2sa933as r.S トランジスタ 01 q451‑452 vk432900 tr 2sd1915f s,t ト...

  • Page 27

    27 ax-497 dpx-1200 ax-497 ref. No. Part no. Description remarks markets 部品名 rank new parts (新規部品) * note) those parts marked with “#” are not included in the p.C.B. Ass'y. （マーク＃の部品は、基板に含まれません） c10 ur749100 c.El 1000uf 25v ケミコン 01 c11 ur868330 c.El 330uf 50v ケミコン 01 c12 ua652100 c.Mylar 100pf 50v j マ...

  • Page 28

    28 ax-497 ax-497 ref. No. Part no. Description remarks markets 部品名 rank new parts (新規部品) * note) those parts marked with “#” are not included in the p.C.B. Ass'y. （マーク＃の部品は、基板に含まれません） q1‑2 vk432900 tr 2sd1915f s,t トランジスタ 01 z q3 vc407900 tr 2sd1913 r,s トランジスタ 01 z q4 vc614000 tr 2sb1274 q,r,s トランジスタ...

  • Page 29

    29 ax-497 dpx-1200 ax-497 ref. No. Part no. Description remarks markets 部品名 rank new parts (新規部品) * note) those parts marked with “#” are not included in the p.C.B. Ass'y. （マーク＃の部品は、基板に含まれません） te1 vc313700 term.Sp 8p jucrta スピーカーターミナル 06 te1 v4811400 term.Sp 8p kbgel スピーカーターミナル 06 z * te151 wg436400...

  • Page 30

    A b c d e 1 2 3 4 5 6 7 ax-497 30 ■ exploded view k model 101 157 120 132 158 158 146 158 158 157 155 106 172 157 110 114 8 116 118 158 158 158 168 168 161 161 130 160 133 132 108 108 158 158 158 160 158 158 145 142 142 133 132 112 158 170 200 170 200-1 171 6 (12) 6 (10) 6 (7) 6 (9) 6 (6) 6 (8) 6 (1...

  • Page 31

    31 ax-497 dpx-1200 ax-497 ref. No. Part no. Description remarks markets 部品名 rank new parts (新規部品) * ■ mechanical parts note) those parts marked with “#” are not included in the p.C.B. Ass'y. （マーク＃の部品は、基板に含まれません） * 1‑1 wf479700 front panel gd フロントパネル * 1‑1 wf479600 front panel bl フロントパネル * 1‑1 wf4798...

  • Page 32

    32 ax-497 ax-497 ref. No. Part no. Description remarks markets 部品名 rank new parts (新規部品) * note) those parts marked with “#” are not included in the p.C.B. Ass'y. （マーク＃の部品は、基板に含まれません） 3‑16 v9126500 shaft シャフト 01 3‑40 we774300 bind head b‑tight screw 3x8 mfzn2w3 バインドＢタイトネジ 01 3‑41 we774400 bind head ...

  • Page 33

    33 ax-497 dpx-1200 ax-497 ref. No. Part no. Description remarks markets 部品名 rank new parts (新規部品) * note) those parts marked with “#” are not included in the p.C.B. Ass'y. （マーク＃の部品は、基板に含まれません） * 114 wg277100 knob d12 pl ti ノブ Ｄ１２ ＰＬ 116 v4728900 knob gd ノブ Ｄ１２ 03 * 116 v4728700 knob bl ノブ Ｄ１２ * 116 ...

  • Page 34: Remote Control Rax15

    A b c d e 1 2 3 4 5 6 7 ax-497 34 remote control rax15 ■ schematic diagram r2 47 Ω r1 1 Ω q1 1 2 3 4 5 6 7 8 9 10 20 19 18 17 15 16 14 13 12 11 u1 µ pd67amc–311 x1 +3v 47 µ f c1 d1 4.00mhz k15 k7 k25 k21 k29 k6 k16 k9 k26 k23 k27 k4 k19 k17 k22 k18 k3 k24 k28 k2 k5 k8 id2 id1 sw1 ki/o6 ki/o5 ki/o4 k...

  • Page 35

    Parts list for carbon resistors 1/6w type part no. Hf45 7100 hf45 7110 hf85 7120 hf45 7130 hf45 7150 hf45 7180 hf45 7220 hf45 7240 hf85 7270 hf45 7300 hf45 7330 hf45 7360 hf45 7390 hf45 7470 hf45 7510 hf45 7560 hf45 7620 hf45 7680 hf45 7820 hf45 7910 hf45 8100 hf45 8110 hf45 8120 hf45 8150 hf45 8180...

  • Page 36: Ax-497

    Ax-497 ax-497 www. Xiaoyu163. Com qq 376315150 9 9 2 8 9 4 2 9 8 tel 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 q q tel 13942296513 qq 376315150 892498299 tel 13942296513 qq 376315150 892498299 http://www.Xiaoyu163.Com http://www.Xiaoyu163.Com.