Yamaha RX-750- User Manual

Yamaha RX-750

Yamaha RX-750– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – TO SERVICE PERSONNEL; Critical Components Information; About Lead Free Solder /; 無鉛ハンダについて; 本機に搭載されている基板のハンダ付けに使用されている; “CAUTION”
  • Page 3 – 注意:; IMPEDANCE SELECTOR
  • Page 4 – FRONT PANELS
  • Page 6 – REMOTE CONTROL PANELS
  • Page 7 – REAR PANELS
  • Page 14 – SPECIFICATIONS; オーディオ部; 定格出力; Maximum Input Signal /; 最大許容入力
  • Page 15 – ビデオ部
  • Page 16 – DIMENSIONS; 総合
  • Page 17 – セットメニュー
  • Page 18 – パラメーターの可変範囲
  • Page 19 – INTERNAL VIEW
  • Page 20 – DISASSEMBLY PROCEDURES; 述します。; Removal of Top Cover; a. Remove the VOLUME knob, PROGRAM knob and the
  • Page 21 – Removal of Sub Chassis; ) and then remove the Side
  • Page 22 – のネジ1本を外します。
  • Page 23 – ) are printed to identify the screws to be; c. Loosen the harness fixture fixing the cable.
  • Page 27 – Starting DIAG; ダイアグの起動; これらのキーを同時に押しながら、パワーオンする。; プロテクション解除モードでの起動; 注意!; Using this product with the protection function disabled; Canceling DIAG; ダイアグの解除; ※ ユーザーメモリーを保持したい場合は、必ず PRESET; In order to keep the user memory stored, be sure to se-
  • Page 28 – When there is a history of protection function:; ダイアグ起動時の表示; Display provided when DIAG started; Opening message / オープニング表示; After a few seconds; When there is no history of protection function:; PROTECT; DIAGNOSTIC
  • Page 29 – History of protection function; プロテクションの履歴; PS; メニュー動作中の表示; Display during menu operation
  • Page 30 – ダイアグメニューとサブメニューの操作; ダイアグメニューの選択; Operation procedure of DIAG MENU and; DIAG menu selection; ダイアグ中の機能; Functions in DIAG mode
  • Page 31 – FULL BIT; • This signal is in digital full bit without including the head; Details of DIAG menu; Using the sub-menu, it is possible to select margin outputor; ダイアグメニュー詳細; MARGIN
  • Page 32 – ANALOG BYPASS; DSP BYPASS; BYPAS
  • Page 34 – PRO LOGIC I; PRO LOGIC II; LOGIC
  • Page 35 – GAIN
  • Page 36 – Pres Mix 5ch; CHK; 入力された信号のレベルを一定時間サンプリングし、表示
  • Page 37 – C H E C; Lighting of segments in lattice /
  • Page 39 – (初期; CAUTION: Before setting to the PRESET RESERVED, write down; プリセット局; This menu is used to reserve/inhibit initialization of the back-; INHI
  • Page 40 – ※図中の数値は参考例です。; * The numeric value in the diagram is for reference.; REC OUT; Destination
  • Page 41 – ターの検出)
  • Page 42 – LOW BYTE DATA; * Numeric values in the figure example are for reference.
  • Page 43 – Format information of reproduction signal /; reproduction is not possible because; Fs information of reproduction signal /; CS1-5: Indicates channel status information of the input sig-
  • Page 44 – Display; PROTECTION SETTING
  • Page 45 – Function
  • Page 46 – ※図中数値は参考例です。; MICROPROCESSOR INFORMATION; The version, checksum and the port specified by the micro-; Details of port setting /; ポート設定の詳細; CHECK; Display of AAC function detection port state; AAC 機能検出ポート状態表示; Check of port setting for judging microprocessor function; マイコンの機能判定用ポート設定確認
  • Page 47 – AMP CHECK; アイドリング電流確認; 注意:パワーアンプ修理後に10.0mV を超えている場合は、抵抗を; ください。; CONFIRMATION OF IDLING CURRENT; CHANNEL; Immediately after the power is turned on, measure the
  • Page 48 – DISPLAY DATA; GRID ASSIGNMENT
  • Page 49 – ANODE CONNECTION
  • Page 50 – IC DATA
  • Page 57 – Name
  • Page 60 – Video signal output terminal; On-screen Display Controller
  • Page 61 – BLOCK DIAGRAM; OPERATION; • See page 79; POWER AMP
  • Page 63 – DIGITAL
  • Page 64 – AUDIO
  • Page 66 – VIDEO
  • Page 69 – POWER TRANSFORMER; VIDEO AUX
  • Page 73 – SUB TRANS; PRE OUT
  • Page 76 – OUT
  • Page 78 – PIN CONNECTION DIAGRAM; ICs; FETs
  • Page 79 – * All voltages are measured with a 10M; * Components having special characteristics are marked; Point; SW
  • Page 80 – ANALOG IN
  • Page 81 – * C o m p o n e n t s h a v i n g s p e c i a l c h a r a c t e r i s t i c s a r e m a r k e d
  • Page 82 – CPU
  • Page 83 – DISPLAY DRIVER
  • Page 85 – POWER SUPPLY; SBL
  • Page 86 – REGULATOR
  • Page 89 – ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS :; ELECTRICAL PARTS; PA RTS LIST; WARNING; Components having special characteristics are marked
  • Page 119 – CHIP CAPACITORS & CHIP RESISTORS
  • Page 120 – CHIP RESISTORS
  • Page 121 – Parts List for Carbon Resistors; Value
  • Page 125 – MECHANICAL PARTS
Loading the manual

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 8 8 5

SERVICE MANUAL

RX-V750/ DSP-AX750/DSP-AX750SE

RX-V650/HTR-5760

AV RECEIVER/AV AMPLIFIER

AMP CHECK /

アンプチェック  . . . . . . . . . . . . . . . . . . . .

47

DISPLAY DATA . . . . . . . . . . . . . . . . . . . . . . . . . . 48–49
IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50–60
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . 61–62
PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . 63–77
PIN CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . 78
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . 79–88
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89–125
REMOTE CONTROL RAV270, RAV271 . . . . 126–127
REMOTE CONTROL RAV248, RAV249 . . . . . . . . 128

■

CONTENTS

TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . . . 2
IMPEDANCE SELECTOR . . . . . . . . . . . . . . . . . . . . . . 3
FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5
REMOTE CONTROL PANELS . . . . . . . . . . . . . . . . . . 6
REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–13
SPECIFICATIONS /

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

14–18

INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
DISASSEMBLY PROCEDURES /

分解手順  . . . . .

20–24

SELF DIAGNOSIS FUNCTION (DIAG) /

自己診断機能（ダイアグ）

. . . . . . . . . . . . . . . . . . . . 25–46

RX-V750/DSP-AX750/DSP-AX750SE

RX-V650/HTR-5760

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Summary

Page 2 - TO SERVICE PERSONNEL; Critical Components Information; About Lead Free Solder /; 無鉛ハンダについて; 本機に搭載されている基板のハンダ付けに使用されている; “CAUTION”

RX-V750/DSP-AX750/DSP-AX750SERX-V650/HTR-5760 2 RX-V750/DSP-AX750/DSP-AX750SE RX-V650/HTR-5760 ■ TO SERVICE PERSONNEL 1. Critical Components Information Components having special characteristics are marked Z and must be replaced with parts having specifications equalto those originally installed. 2....

Page 3 - 注意:; IMPEDANCE SELECTOR

RX-V750/DSP-AX750/DSP-AX750SE RX-V650/HTR-5760 RX-V750/DSP-AX750/DSP-AX750SE RX-V650/HTR-5760 3 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 sold...

Page 4 - FRONT PANELS

RX-V750/DSP-AX750/DSP-AX750SERX-V650/HTR-5760 4 RX-V750/DSP-AX750/DSP-AX750SE RX-V650/HTR-5760 ▼ DSP-AX750SE (B model) ▼ RX-V750 (U, C, R, T, K, A, G, L models) ■ FRONT PANELS ▼ DSP-AX750 (J model)

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