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Yamaha
Amplifier
AX-397
Service Manual

Yamaha AX-397 Service Manual

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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 not been restated.

WARNING:

Failure to follow appropriate service and safety procedures when servicing this product may result in personal

injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,

we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA

Retailer or the appointed service representative.

IMPORTANT:

The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or

recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service

departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and

specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the

distributor's Service Division.

WARNING:

Static discharges can destroy expensive components. Discharge any static electricity your body may have

accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).

IMPORTANT:

Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.

IMPORTANT NOTICE

1 0 0 9 7 6

SERVICE MANUAL

STEREO AMPLIFIER

ADJUSTMENT /

調整 . . . . . . . . . . . . . . . . . . . . . . . . . . .

IC DATA /

ICデータ . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

PIN CONNECTION DIAGRAM /

半導体外形図 . . . . . .

PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . 15–20

SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . 21–22

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23–33

REMOTE CONTROL RAX15 . . . . . . . . . . . . . . . . . . 34

■

CONTENTS

TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . 2–3

IMPEDANCE SELECTOR . . . . . . . . . . . . . . . . . . . . . . 3

REMOTE CONTROL PANEL . . . . . . . . . . . . . . . . . . . 3

FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–6

SPECIFICATIONS /

参考仕様 . . . . . . . . . . . . . . . . . . .

7–8

INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

DISASSEMBLY PROCEDURES /

分解手順 . . . . . . . . .

DPX-1200

AX-397

This manual is copyrighted by YAMAHA and may not be copied or

redistributed either in print or electronically without permission.

’05.09

1 2 3 4 5 6 7 Next › »

Summary of AX-397

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-397 ax-397 ■ 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-397 dpx-1200 ax-397 ■ 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...
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4 ax-397 ax-397 ■ rear panels ▼ c models ▼ r model ▼ t model.
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5 ax-397 dpx-1200 ax-397 ▼ a model ▼ b model ▼ g, e models.
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6 ax-397 ax-397 ▼ l model ▼ j model.
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7 ax-397 dpx-1200 ax-397 general / 総合 power supply / 電源電圧 c model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ac 120 v, 60 hz r model . . . . . . . . . . . . . Ac 110/120/220/230-240 v, 50/60 hz t model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ac 220 v, 50 hz a model ....
Page 8
8 ax-397 ax-397 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. !2 function (1) ...
Page 9
9 ax-397 dpx-1200 ax-397 ■ 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-397 ax-397 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-397 dpx-1200 ax-397 ■ 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 r64 r51 r52 r65 r64 ...
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-397 dpx-1200 ax-397 ■ block diagram 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 input selector phono eq amp cd/dvd direct amp m oto r driver on on off off 31.8db m main vr 10db r yps loudness balance t one contr ol tape monitor main mute cd-d...
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14 ax-397 ax-397 ■ pin connection diagram / 半導体外形図 lm61ciz 1: +vs 2: vout 3: gnd ● ics nju7312am 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 ma8091-h 2sa933...
Page 15
A b c d e f g h 1 2 3 4 5 6 ax-397 15 1 10 volume function (2) p.C.B. (side a) function (3) p.C.B. (side a) function (3) p.C.B. (side b) lead free solder used ■ printed circuit board (foil side) function (1) p.C.B. (side a) function (1) p.C.B. (side b) lead free solder used tape monitor cd/dvd direc...
Page 16
A b c d e f g h 1 2 3 4 5 6 ax-397 16 ■ printed circuit board (foil side) tuner in out in out aux md tape function (1) cb302 1 8 9 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) p.C.B. (side a) function (4) p.C....
Page 17
A b c d e f g h 1 2 3 4 5 6 ax-397 17 ■ printed circuit board (foil side) function (6) p.C.B. (side a) function (7) p.C.B. (side a) balance 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 phono tu...
Page 18
A b c d e f g h 1 2 3 4 5 6 ax-397 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 tape monitor 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-397 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-397 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 power transformer (c, t, a, b, g, e, j) or main (4) w211 (r, l) power cable main (1) cb2 a c outlets function (12) cb681 power transformer mai...
Page 21
A b c d e f g h 1 2 3 4 5 6 i j k 7 8 ax-397 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-397 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-397 dpx-1200 ax-397 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-397 ax-397 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） * wg030100 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-397 dpx-1200 ax-397 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） c511‑512 ua652100 c.Mylar 100pf 50v j マイラーコン 01 c513‑514 ua653910 c.Mylar 9100pf 50v j マイラーコン 01 c515‑516 u...
Page 26
26 ax-397 ax-397 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） * q309 vv912400 tr 2sa933as r.S トランジスタ 01 q451‑452 vk432900 tr 2sd1915f s,t トランジスタ 01 q453 ic1815i0 tr 2sc1815 y トラン...
Page 27
27 ax-397 dpx-1200 ax-397 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） c12 ua652100 c.Mylar 100pf 50v j マイラーコン 01 c13 we100900 c.Pp 220pf 630v ＰＰコン c14‑16 ua652100 c.Mylar 100pf ...
Page 28
28 ax-397 ax-397 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） q7‑10 ic1815i0 tr 2sc1815 y トランジスタ 01 q11‑12 ia097030 tr 2sa970 gr,bl トランジスタ 01 q13‑14 ia1015i0 tr 2sa1015 y トランジスタ ...
Page 29
29 ax-397 dpx-1200 ax-397 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） z te151 vv118800 outlet.Ac 3p c ＡＣアウトレット 05 z te151 v4746500 outlet.Ac 3p r ＡＣアウトレット 04 z * te151 v5867900 ...
Page 30
A b c d e 1 2 3 4 5 6 7 ax-397 30 ■ exploded view 101 157 120 132 158 158 158 157 155 106 172 157 110 114 8 116 158 158 158 168 168 161 161 130 160 133 132 108 108 158 158 158 160 158 158 145 142 142 133 132 112 158 170 200 170 200-1 171 6 (12) 6 (10) 6 (7) 6 (9) 6 (6) 6 (8) 6 (11) 6 (3) 5 (1) 5 (2)...
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31 ax-397 dpx-1200 ax-397 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） ■ mechanical parts * 1‑1 wf479400 front panel gd フロントパネル * 1‑1 wf479300 front panel bl フロントパネル * 1‑1 wf4795...
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32 ax-397 ax-397 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-397 dpx-1200 ax-397 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） * 116 wg277200 knob d12 ti ノブＤ１２ 120 v6876200 button/d5 gd ボタン／Ｄ５ * 120 v6876100 button/d5 bl ボタン／Ｄ５ * 120...
Page 34: Remote Control Rax15
A b c d e 1 2 3 4 5 6 7 ax-397 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-397
Ax-397 ax-397.