Yamaha RX-V381 Manuel utilisateur

SERVICE MANUAL

AV RECEIVER

RX-V381/HTR-3069

Note:

When the DIGITAL P.C.B. or IC224 on DIGITAL P.C.B. is replaced, this unit will display “Internal Error”and will not

operate properly. The model name and destination MUST be written to the backup IC (EEPROM: IC224 on DIGITAL

P.C.B.) to have proper operation. (For detailed procedure, refer to related Service News or Service Bulletin. Or

contact your local Yamaha representative.)

注意：

DIGITAL P.C.B. または DIGITAL P.C.B. のIC224 を交換すると、“Internal Error” が表示されて本機が正常に動作し

なくなります。正常に動作させるために、モデル名と仕向け先をバックアップ IC（EEPROM：DIGITAL P.C.B. の

IC224）へ書き込む必要があります。（詳しい手順は、関連するサービスニュース、または技術報告を参照してくだ

さい。もしくはヤマハのサービスセンターまでご連絡ください。）

■CONTENTS

TO SERVICE PERSONNEL........................................... 2

FRONT PANELS ............................................................ 3

REAR PANELS .............................................................. 5

REMOTE CONTROL PANELS .....................................11

SPECIFICATIONS / 参考仕様 ...................................... 12

INTERNAL VIEW ......................................................... 15

SERVICE PRECAUTIONS / サービス時の注意事項 .... 15

DISASSEMBLY PROCEDURES / 分解手順 ................ 16

UPDATING FIRMWARE /

ファームウェアのアップデート................................. 20

SELF-DIAGNOSTIC FUNCTION /

ダイアグ（自己診断機能）.......................................... 26

POWER AMPLIFIER ADJUSTMENT /

パワーアンプ調整 ...................................................... 58

DISPLAY DATA ............................................................ 59

IC DATA........................................................................ 61

BLOCK DIAGRAMS..................................................... 72

WIRING DIAGRAMS.................................................... 74

PRINTED CIRCUIT BOARDS...................................... 76

PIN CONNECTION DIAGRAMS .................................. 88

SCHEMATIC DIAGRAMS ............................................ 89

REPLACEMENT PARTS LIST..................................... 99

REMOTE CONTROL.................................................. 120

FIRMWARE UPDATING PROCEDURE..................... 125

ファームウェア更新手順............................................ 133

101363

'16.03

RX-V381/HTR-3069

■TO SERVICE PERSONNEL

1. Critical Components Information

Components having special characteristics are marked ⚠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 completed, it is imperative to verify

that all exposed conductive surfaces are properly insulated

from supply circuits.

• Meterimpedanceshouldbeequivalentto1500ohmsshunted

by0.15μF.

WALL

OUTLET

EQUIPMENT

UNDER TEST

AC LEAKAGE

TESTER OR

EQUIVALENT

INSULATING

TABLE

• Leakagecurrentmustnotexceed0.5mA.

• BesuretotestforleakagewiththeACpluginbothpolarities.

For U model

“CAUTION”

“F5401: FORCONTINUEDPROTECTIONAGAINSTRISKOFFIRE,REPLACEONLYWITHSAMETYPE6.3A,

250VFUSE.”

For C model

CAUTION

F5401: REPLACEWITHSAMETYPE6.3A,250VFUSE.

ATTENTION

F5401: UTILISERUNFUSIBLEDERECHANGEDEMÉMETYPEDE6.3A,250V.

CALIFORNIA PROPOSITION 65 WARNING

This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive

harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTHFOR ANY REASON

WHATSOEVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or

expose eyes to solder/flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash your hands before

handling food.

About lead free solder / 無鉛ハンダについて

All of the P.C.B.s installed in this unit and solder joints are

soldered using the lead free solder.

Among some types of lead free solder currently available,

it is recommended to use one of the following types for

the repair work.

•Sn + Ag + Cu (tin + silver + copper)

•Sn + Cu (tin + copper)

•Sn + Zn + Bi (tin + zinc + bismuth)

Caution:

As the melting point temperature of the lead free solder is

about 30°Cto 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.

本機に搭載されているすべての基板およびハンダ付けに

よる接合部は無鉛ハンダでハンダ付けされています。

無鉛ハンダにはいくつかの種類がありますが、修理時に

は下記のような無鉛ハンダの使用を推奨します。

•Sn+Ag+Cu（錫 +銀+銅）

•Sn+Cu（錫 +銅）

•Sn+Zn+Bi（錫 +亜鉛 +ビスマス）

注意：

無鉛ハンダの融点温度は通常の鉛入りハンダに比べ 30〜

40℃程度高くなっていますので、それぞれのハンダに合っ

たハンダごてをご使用ください。

RX-V381/HTR-3069

■FRONT PANELS

RX-V381 (U, C, A, J models)

J model

U, C, A models

RX-V381 (R, K, B, G, F, L, V, S models)

RX-V381 (T model)

RX-V381/HTR-3069

HTR-3069 (U, C models)

HTR-3069 (K, B, G, F, L models)

HTR-3069 (T model)

RX-V381/HTR-3069

■REAR PANELS

RX-V381 (U, C models)

RX-V381 (R, V models)

RX-V381 (T model)

RX-V381/HTR-3069

RX-V381 (K model)

RX-V381 (A model)

RX-V381 (B model)

RX-V381/HTR-3069

RX-V381 (G, F models)

RX-V381 (L model)

RX-V381 (S model)

RX-V381/HTR-3069

RX-V381 (J model)

HTR-3069 (U, C models)

HTR-3069 (T model)

RX-V381/HTR-3069

HTR-3069 (K model)

HTR-3069 (B model)

TR-3069 (G, F models)

RX-V381/HTR-3069

HTR-3069 (L model)

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