Yamaha RXV-373 Service Manual

AV RECEIVER

RX-V373/HTR-3065

SERVICE MANUAL

Note:

When the following parts are replaced, the model name and destination MUST be written to the back-up IC (EEPROM:
IC221 on DIGITAL P.C.B.) to have proper operation. (For details, refer to “22 SOFT SWITCH” menu of the self­diagnostic function.)

注意：

下記の部品を交換した場合、正常動作のためにモデル名と仕向け先をバックアップ IC（DIGITALP.C.B. の IC221）へ
書き込む必要があります。（詳細は、ダイアグの “22.SOFTSWITCH” メニューを参照してください。）

• DIGITAL P.C.B.

• EEPROM: IC221 on DIGITAL P.C.B.

IMPORTANT NOTICE

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 specifi cally YAMAHA Products, are already known
and understood by the users, and have therefore not been restated.

WARNING:

IMPORTANT:

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
specifi cations are subject to change without notice or obligation to retrofi t. Should any discrepancy appear to exist, please contact the
distributor's Service Division.

WARNING:

IMPORTANT:

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 specifi ed. 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.

The presentation or sale of this manual to any individual or fi rm does not constitute authorization, certifi cation or

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

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).

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

RX-V373/HTR-3065

■ CONTENTS

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

FRONT PANELS ......................................................... 3–4

REAR PANELS ...........................................................5–9

REMOTE CONTROL PANELS ..................................... 10

SPECIFICATIONS /

INTERNAL VIEW .......................................................... 17

SERVICE PRECAUTIONS /
DISASSEMBLY PROCEDURES /
UPDATING FIRMWARE /

ファームウェアのアップデート

SELF-DIAGNOSTIC FUNCTION /

ダイアグ（自己診断機能）

101234

参考仕様

................................. 11–16

サービス時の注意事項

分解手順

..............................22–26

.......................................27–52

...........18–21

.....17

DISPLAY DATA .......................................................53–54

IC DATA ...................................................................55–65

BLOCK DIAGRAMS ................................................66–67

PRINTED CIRCUIT BOARDS .................................68–81

PIN CONNECTION DIAGRAMS ...................................82

SCHEMATIC DIAGRAMS ....................................... 83–92

REPLACEMENT PARTS LIST .............................. 93–105

REMOTE CONTROL ............................................106–110

CONFIGURING THE SYSTEM SETTINGS ..................111

システム設定を変更する

P.O.Box 1, Hamamatsu, Japan

RX-V373/HTR-3065

■ 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.

RX-V373/HTR-3065

WALL

OUTLET

• Leakage current must not exceed 0.5mA.

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

EQUIPMENT

UNDER TEST

INSULATING

TABLE

AC LEAKAGE

TESTER OR

EQUIVALENT

For U model

“CAUTION”

“F1501: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 6A,

125V FUSE.”

For C model

CAUTION

F1501: REPLACE WITH SAME TYPE 6A, 125V FUSE.

ATTENTION

F1501: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 6A, 125V.

WARNING: CHEMICAL CONTENT NOTICE!

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 MOUTH FOR 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 /

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°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.

無鉛ハンダについて

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。

2

■ FRONT PANELS

RX-V373 (U, C, R, K, A, B, G, F, L, S, H, J models)

RX-V373/HTR-3065

U, C, R, K, A, B, G, F, L, S, H models

J model

RX-V373/HTR-3065

RX-V373 (T model)

3

RX-V373/HTR-3065

HTR-3065 (U, C, R, K, A, B, G, F, L, S, H models)

RX-V373/HTR-3065

HTR-3065 (T model)

4

■ REAR PANELS

RX-V373 (U, C models)

RX-V373 (R, S models)

RX-V373/HTR-3065

RX-V373/HTR-3065

RX-V373 (T model)

5

RX-V373/HTR-3065

RX-V373 (K model)

RX-V373/HTR-3065

RX-V373 (A model)

RX-V373 (B, G, F models)

6

RX-V373 (L, H models)

RX-V373 (J model)

RX-V373/HTR-3065

RX-V373/HTR-3065

HTR-3065 (U, C models)

7

RX-V373/HTR-3065

HTR-3065 (R, S models)

RX-V373/HTR-3065

HTR-3065 (T model)

HTR-3065 (K model)

8

HTR-3065 (A model)

HTR-3065 (B, G, F models)

RX-V373/HTR-3065

RX-V373/HTR-3065

HTR-3065 (L, H models)

9

RX-V373/HTR-3065

■ REMOTE CONTROL PANELS

(U, C, R, K,

B, G, F, L, S, H, J models)

RX-V373/HTR-3065

RAV463

RAV462

(T model)

RAV461

(A model)

Remote control sheet

10

RX-V373/HTR-3065

■ SPECIFICATIONS /

■ Audio Section /

Rated Output Power (Power Amp. Section) /

定格出力（パワーアンプ部）

(1 kHz, 0.9 % THD)

– 1 channel driven –

U, C models (8 ohms)

FRONT L/R ................................................................ 100 W/ch

CENTER .......................................................................... 100 W

SURROUND L/R ........................................................ 100 W/ch

R, T, K, A, B, G, F, L, S, H, J models (6 ohms)

FRONT L/R ................................................................ 100 W/ch

CENTER .......................................................................... 100 W

SURROUND L/R ........................................................ 100 W/ch

– 2 channels driven simultaneously –

U, C models (8 ohms)

FRONT L/R ...........................................................85 W + 85 W

CENTER ............................................................................ 85 W

SURROUND L/R ...................................................85 W + 85 W

(20 Hz to 20 kHz, 0.08 % THD)

– 2 channels driven simultaneously –

U, C models (8 ohms)

FRONT L/R ...........................................................70 W + 70 W

R, T, K, A, B, G, F, L, S, H, J models (6 ohms)

FRONT L/R ...........................................................65 W + 65 W

Maximum Effective Output Power /

(1 kHz, 10 % THD, 6 ohms / 1 channel driven)
[R, T, K, L, S, H, J models]

FRONT L/R ......................................................................... 135 W/ch

CENTER .................................................................................. 135 W

SURROUND L/R ................................................................135 W/ch

Dynamic Power Per Channel /

FRONT L/R drive

U, C models

(8 / 6 / 4 / 2 ohms) .................................. 110 / 130 / 160 / 180 W

R, T, K, A, B, G, F, L, S, H, J models

(6 / 4 / 2 ohms) ................................................ 110 / 130 / 150 W

Dynamic Headroom [U, C models]

8 ohms ..................................................................................0.23 dB

Damping Factor /

FRONT L/R to SPEAKER ................................................120 or more

Input Sensitivity/Input Impedance /

(1 kHz, 100 W/6 ohms)

AV5 etc. ............................................................200 mV / 47 k-ohms

Maximum Input Signal /

AV5 etc. (EFFECT ON) .............................................................. 2.3 V

Output Level/Output Impedance /

AV OUT ............................................................ 200 mV / 1.2 k-ohms

SUBWOOFER .........................................................1 V / 1.2 k-ohms

Headphone Jack Rated Output/Output Impedance /

ヘッドホン出力／出力インピーダンス

AV5 etc. input .....................................................100 mV / 470 ohms

Frequency Response /

AV5 etc., FRONT ..................................................................0 / -3 dB

Signal to Noise Ratio /

AV5, etc. (DIRECT) to SP OUT (Input shorted 250 mV)

.............................................................................. 100 dB or more

オーディオ部

ダイナミックパワー

ダンピングファクタ

最大許容入力

再生周波数帯域

信号対雑音比

参考仕様

実用最大出力

(20 Hz to 20 kHz, 8 ohms)

入力感度／入力インピーダンス

(1 kHz, 0.5 % THD)

出力電圧／出力インピーダンス

(1 kHz, 50 mV, 8 ohms)

(10 Hz to 100 kHz)

(IHF-A network)

(JEITA)

(IHF)

Residual Noise /

FRONT L/R to SP OUT ................................................150 μV or less

Channel Separation /

AV5, etc. (Input 5.1 k-ohms shorted)

1 kHz / 10 kHz ............................... 60 dB or more / 45 dB or more

Volume Control /

......................................... MUTE / -80 dB to +16.5 dB / 0.5 dB step

Tone Control Characteristics /

FRONT L/R

Bass

Boost/Cut ...................................... ±6 dB / 0.5 dB step, at 50 Hz

Turnover frequency ..........................................................350 Hz

Treble

Boost/Cut .....................................±6 dB / 0.5 dB step, at 20 kHz

Turnover frequency .........................................................3.5 kHz

Filter Characteristics /

FRONT, CENTER, SURROUND small (H.P.F.)

....................fc=40/60/80/90/100/110/120/160/200 Hz, 12 dB/oct.

SUBWOOFER small (L.P.F.)

....................fc=40/60/80/90/100/110/120/160/200 Hz, 24 dB/oct.

■ Video Section /

Video Signal Type /

U, C, R, K, S, J models ............................................................NTSC

T, A, B, G, F, L, H models ............................................................PAL

Composite Video Signal Level /

...............................................................................1 Vp-p / 75 ohms

Component Video Signal Level /

Y .............................................................................1 Vp-p / 75 ohms

Cb/Cr ..................................................................0.7 Vp-p / 75 ohms

D4 Video Signal /

Y .............................................................................1 Vp-p / 75 ohms

Cb/Cr ..................................................................0.7 Vp-p / 75 ohms

Video Maximum Input Level /
(VIDEO Conversion Off)

............................................................................... 1.5 Vp-p or more

Video Signal to Noise Ratio /

................................................................................... 50 dB or more

Monitor Out Frequency Response /
(VIDEO Conversion Off)

Component video signal level /

....................................................................5 Hz to 60 MHz, -3 dB

D4 video signal /

.....................................................................5 Hz to 60 MHz, -3 dB

残留ノイズ

可変範囲／ステップ

ビデオ部

D4 ビデオ信号

D4 ビデオ信号

(IHF-A Network)

チャンネルセパレーション

トーンコントロール特性

フィルタ特性

ビデオ信号方式

コンポジットビデオ信号

コンポーネントビデオ信号

[J model]

ビデオ最大許容入力

ビデオ信号対雑音比

モニター出力周波数帯域

コンポーネントビデオ信号

[J model]

RX-V373/HTR-3065

11

RX-V373/HTR-3065

■ FM Section /

Tuning Range /

U, C models ......................................................... 87.5 to 107.9 MHz

R, L, S, H models .............87.5 to 108.0 MHz / 87.50 to 108.00 MHz

T, K, A, B, G, F models ....................................87.50 to 108.00 MHz

J model ..................................................................76.0 to 90.0 MHz

50 dB Quieting Sensitivity /

(1 kHz, 100 % MOD.)

Mono ......................................................................... 3 μV (20.8 dBf)

Signal to Noise Ratio /

Mono ........................................................................................72 dB

Stereo ......................................................................................70 dB

Harmonic Distortion / 歪率 (1 kHz)

Mono ........................................................................................ 0.3 %

Stereo ......................................................................................0.5 %

Antenna Input /

....................................................................... 75 ohms unbalanced

RX-V373/HTR-3065

■ AM Section /

Tuning Range /

U, C models ........................................................... 530 to 1,710 kHz

R, L, S, H models ..................... 530 to 1,710 kHz / 531 to 1,611 kHz

T, K, A, B, G, F, J models .......................................531 to 1,611 kHz

Antenna /

..................................................................................... Loop antenna

アンテナ

FM部

受信周波数範囲

信号対雑音比

アンテナ入力

AM部

受信周波数範囲

50dBSN 感度

(IHF)

(IHF)

Finish /

仕上げ

[RX-V373]

T model .................................................................GD (Gold color)

U, C, R, T, K, A, B, G, F, L, S, H, J models ............BL (Black color)

R, K, B, G, F, L, H models ................................. TI (Titanium color)

[HTR-3065]

T model .................................................................GD (Gold color)

U, C, R, T, K, A, B, G, F, L, S, H models ................BL (Black color)

G model ............................................................ TI (Titanium color)

Accessories /

付属品

Remote control ..............................................................................x 1

Battery (R03, AAA, UM-4) .............................................................x 2

FM antenna (1.4 m) ......................................................................x 1

AM antenna (1.3 m) ......................................................................x 1

YPAO microphone (6.0 m) ............................................................x 1

Remote control sheet (T model) ...................................................x 1

* Specifications are subject to change without notice.

※ 参考仕様および外観は、製品の改良のため予告なく変更すること

があります。

U .......................U.S.A. model

C .................Canadian model

R ....................General model

T .................... Chinese model

K .....................Korean model

A ................Australian model

G .................European model

F .................... Russian model

L .................Singapore model

S ...................Brazirian model

H ..........................Thai model

J .................. Japanese model

B ......................British model

■ General /

Power Supply /

総合

電源電圧

U, C models ............................................................ AC 120 V, 60 Hz

R, S model ...................................AC 110–120/220–240 V, 50/60 Hz

T model ................................................................... AC 220 V, 50 Hz

K model .................................................................. AC 220 V, 60 Hz

A model .................................................................. AC 240 V, 50 Hz

B, G, F models ........................................................ AC 230 V, 50 Hz

L, H models ............................................... AC 220–240 V, 50/60 Hz

J model .............................................................. AC 100 V, 50/60 Hz

Power Consumption /

消費電力

U, C models ..............................................................250 W / 320 VA

R, T, K, A, B, G, F, L, S, H models ........................................... 250 W

J model ...................................................................................175 W

Standby Power Consumption (reference data) /

待機時消費電力（参考値）

U, C, T, K, A, B, G, F, L, H, J models ............................0.3 W or less

R, S models ..................................................................0.5 W or less

Maximum Power Consumption [R, L, S, H models]

................................................................................................ 470 W

Dimensions (W x H x D) /

寸法（幅 × 高さ × 奥行き）

..................................... 435 x 151 x 315 mm (17-1/8" x 6" x 12-3/8")

Weight / 質量

............................................................................... 7.5 kg (16.5 lbs.)

Manufactured under license from Dolby Laboratories. Dolby, Pro Logic and
the double-D symbol are trademarks of Dolby Laboratories.

ドルビーラボラトリーズからの実施権に基づき製造されています。「ドルビー」、

「PROLOGIC」およびダブル D 記号

DTS-HD, the Symbol, & DTS-HD and the Symbol together are registered
trademarks of DTS, Inc. Product includes software. © DTS, Inc. All Rights
Reserved.

DTS-HD および記号は DTS 社の登録商標です。また、DTS-HD ロゴは DTS 社の
商標です。製品にはソフトウェアを含みます。著作権 DTS 社。不許複製。

iPhone, iPod, iPod classic, iPod nano and iPod touch are trademarks of
Apple Inc., registered in the U.S. and other countries.

iPhone、iPod、iPodclassic、iPodnano、iPodtouch は、米国およびその他
の国々で登録されている AppleInc. の商標です。

“HDMI,” the “HDMI” logo and “High-Definition Multimedia Interface” are
trademarks, or registered trademarks of HDMI Licensing LLC.

HDMI、HDMI ロゴ、および High-Defi nitionMultimediaInterface は、HDMI
Licensing,LLC の商標または登録商標です。

はドルビーラボラトリーズの商標です。

12

“x.v.Color” is a trademark of Sony Corporation.

「x.v.Color」は、ソニー株式会社の商標です。

“SILENT CINEMA” is a trademark of Yamaha Corporation.

「サイレントシネマ™ SILENTCINEMA™」はヤマハ株式会社の登録商標です。

• DIMENSIONS

AAC ロゴマーク

RX-V373/HTR-3065

はドルビーラボラトリーズの商標です。

RX-V373/HTR-3065

Top view

46

(1-3/4")

170 (6-5/8")

50

58

(2")

(2-1/4")

Front view

ø 60

335 (13-1/4")

435 (17-1/8")

23

(7/8")

315 (12-3/8")

274 (10-3/4")

18

(3/4")

151 (6")

130 (5-1/8")21

(7/8")

Unit: mm (inch)

単位：mm（インチ）

13

RX-V373/HTR-3065

• SELECT MENU

Sound field parameters

Parameter

Category Program

MOVIE Standard

RX-V373/HTR-3065

MUSIC Hall in Munich

SUR. DECODE

STRAIGHT

ENHANCER Enhancer On / Off

: Setting is possible

●

設定可

Spectacle

Sci-Fi

Adventure

Drama

Mono Movie

Sports

Action Game

Roleplaying Game

Hall in Vienna

Chamber

Cellar Club

The Roxy Theatre

The Bottom Line

Music Video

2ch Stereo

5ch Stereo

●

*1

Decode Type

Panorama: Off / On, [Off]

Center Width: 0 to 7, [3]

Dimension: -3 to +3, [0]

Center Image: 0.0 to 1.0, [0.3]

*1 Decode Type

Pro Logic

PLII Movie

Decode Type

PLII Music

PLII Game

Neo: 6 Cinema

Neo: 6 Music

14

• SET MENU TABLE

RX-V373/HTR-3065

MAIN

MENU

Speaker Configuration Subwoofer [Use] / None

HDMI Configuration HDMI Control [Off] / On

SUB-MENU PARAMETER VALUE [INITIAL VALUE]

Front [Small] / Large

Center [Small] / Large / None

Surround [Small] / Large / None

Crossover 40 Hz / 60 Hz / [80 Hz] / 90 Hz / 100Hz / 110 Hz / 120 Hz / 160 Hz /

200 Hz

Subwoofer Phase [Normal] / Reverse

Extra Bass [Off] / On

Distance Unit Feet / Meter

Front L 0.30 to 24.00 m, [3.05 m], 0.05 m step

Front R 1.0 to 80.0 ft, [10.0 ft], 0.2 ft step

Center 0.30 to 24.00 m, [2.60 m], 0.05 m step

1.0 to 80.0 ft, [8.6 ft], 0.2 ft step

Surround L 0.30 to 24.00 m, [2.45 m], 0.05 m step

Surround R 1.0 to 80.0 ft, [8.0 ft], 0.2 ft step

Subwoofer 0.30 to 24.00 m, [3.05 m], 0.05 m step

1.0 to 80.0 ft, [10.0 ft], 0.2 ft step

Level Front L

Front R

Center

Surround L -10.0 to +10.0 dB, [-1.0 dB], 0.5 dB step

Surround R

Subwoofer -10.0 to +10.0 dB, [0.0 dB], 0.5 dB step

Equalizer EQ Select PEQ / [GEQ] / Off

GEQ Edit Front L 63 Hz ···········||···········

Front R 160 Hz ···········||···········

Center 400 Hz ···········||···········

Surround L 1 kHz ···········||··········· -6.0 to +6.0 dB, [0 dB], 0.5 dB step

Surround R 2.5 kHz ···········||···········

6.3 kHz ···········||···········

16 kHz ···········||···········

Test Tone [Off] / On

Audio Output Amp Off / [On]

HDMI OUT (TV) [Off] / On

TV Audio Input AV1 / AV2 / AV3 / [AV4] / AV5 / AUDIO1 / AUDIO2

Standby Sync Off / On / [Auto]

ARC Off / [On]

SCENE

BD / D

TV

CD

RADIO

VD

-10.0 to +10.0 dB, [0.0 dB], 0.5 dB step

* “PEQ” is available only when the YPAO has been performed

“PEQ”

* This setting is available only when “HDMI Control” is set to “Off”.

“HDMI Control”が“Off”

Off / [On]

[Off] / On

は自動測定（

YPAO

）を行った場合のみ選択可能

の場合のみ設定可能

RX-V373/HTR-3065

15

RX-V373/HTR-3065

MAIN

MENU

Sound DSP Parameter Panorama [Off] / On

ECO Auto Power Down U, C, R, T, K, A, L, S, H, J models: [Off] / 2 hours / 4 hours / 8 hours /

Function Input Rename Input sources: HDMI1 / HDMI2 / HDMI3 / HDMI4 / AV1 / AV2 / AV3 /

RX-V373/HTR-3065

Language English (English) / Français (Franch) / Deutsch (German) /

(U, C, R, T, K, A, B, G, F, L, S, H models) Español (Spanish) / РУccкий (Russian) / 中文 (Chinese)

SUB-MENU PARAMETER VALUE [INITIAL VALUE]

Center Width 0 to 7, [3]

Dimension -3 to +3, [0]

Center Image 0.0 to 1.0, [0.3]

Lipsync Select Manual / [Auto]

Adjustment 0 to 250 ms, [0 ms], 1 ms step

Vol ume Dynamic Range [Maximum] / Standard / Min/Auto

Max Volume -30.0 to +15.0 dB / +16.5 dB (Maximum volume), [+16.5 dB], 5.0 dB step

Initial Volume [Off] / Mute / -80.0 to +16.5 dB, 0.5 dB step

12 hours

B, G, F models: Off / 2 Hours / 4 Hours / [8 Hours] / 12 Hours

ECO Mode [Off] / On

AV4 / AV5 / AUDIO1 / AUDIO2 / USB / V-AUX

Input is possible to 9 characters

Input possible Character type

Capital: A to Z

Small: a to z

Figure: 0 to 9

Symbols: # * + , - etc.

Space

Preset name select: Blu-ray / DVD / SetTopBox / Game / TV / DVR /

CD / CD-R / Satellite / VCR / Tape / MD / PC /

iPod / HD DVD

Dimmer -4 to 0 (higher to brighten), [-2]

Memory Guard [Off] / On

16

■ INTERNAL VIEW

RX-V373/HTR-3065

1

12 10 8

13 14 15

3524 6 7

1

OPERATION (3) P.C.B.

2

MAIN (3) P.C.B. (R, S models)

3

MAIN (1) P.C.B.

4

AM/FM TUNER

5

DIGITAL P.C.B.

6

MAIN (2) P.C.B.

7

OPERATION (4) P.C.B.

8

MAIN (4) P.C.B.

9

OPERATION (9) P.C.B.

10

OPERATION (2) P.C.B.

11

OPERATION (8) P.C.B.

12

POWER TRANSFORMER

13

OPERATION (7) P.C.B.

14

OPERATION (1) P.C.B.

15

OPERATION (6) P.C.B.

16

OPERATION (5) P.C.B.

911

RX-V373/HTR-3065

16

■ SERVICE PRECAUTIONS /

サービス時の注意事項

Safety measures

• Some internal parts in this product contain high voltages
and are dangerous.
Be sure to take safety measures during servicing, such
as wearing insulating gloves.

• Note that the capacitors indicated below are dangerous
even after the power is turned off because an electric
charge remains and a high voltage continues to exist
there.
Before starting any repair work, connect a discharging
resistor (5 k-ohms/10 W) to the terminals of each
capacitor indicated below to discharge electricity.
The time required for discharging is about 30 seconds
per each.

C46 and C47 on MAIN (1) P.C.B.
C1501 on OPERATION (3) P.C.B.

安全対策

・ この製品の内部には高電圧部分があり危険です。修理

の際は、絶縁性の手袋を使用するなどの安全対策を
行ってください。

・ 下記のコンデンサには電源を OFF にした後も電荷が残

り、高電圧が維持されており危険です。
修理作業前に放電用抵抗（5k Ω /10W）を下記の各コ
ンデンサの端子間に接続して放電してください。
放電所用時間は各々約 30 秒間です。

MAIN（1）P.C.B. の C46、C47
OPERATION（3）P.C.B. の C1501

詳しくは “PRINTEDCIRCUITBOARDS” を参照してくだ
さい。

For details, refer to “PRINTED CIRCUIT BOARDS”.

17

RX-V373/HTR-3065

■ DISASSEMBLY PROCEDURES /

(Remove parts in the order as numbered.)
Disconnect the power cable from the AC outlet.

1. Removal of Top Cover

a. Remove 5 screws (①) and 4 screws (②). (Fig. 1)
b. Lift the rear of the top cover to remove it. (Fig. 1)

2. Removal of Front Panel Unit

a. Remove 7 screws (③). (Fig. 1)
b. Remove CB166, CB193, CB221 and CB281. (Fig. 1)
c. Unlock and remove CB136. (Fig. 1)
d. Release hook, and then remove the front panel unit.

(Fig. 1)

Connected

RX-V373/HTR-3065

Remove CB136 and CB262

Unlock the connector

1

コネ クター ロック解 除

Remove the cable

2

接続

ケーブルを外す

1 1

分解手順

（番号順に部品を外してください。）

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. ①のネジ 5 本、②のネジ 4 本を外します。（Fig.1）
b. トップカバーの後部を持ち上げ、外します。（Fig.1）

2. フロントパネルユニットの外し方

a. ③のネジ 7 本を外します。（Fig.1）
b. CB166、CB193、CB221、CB281を外します。（Fig.1）
c. ロックを外し、CB136を外します。（Fig.1）
d. フック 1 箇所を外し、フロントパネルユニットを外し

ます。（Fig.1）

Top cover
トップカバー

①

②

2

Cable

ケーブル

Connect CB136 and CB262

Connected

接続

Lock the connector

1

コネ クター ロック

Insert the cable

2

ケーブルを差し込む

1 1

Cable

ケーブル

CB136

2

Front panel unit

フロントパネルユニット

②

CB221

CB166

③

CB281

CB193

③

Hook

③

18

Fig. 1

RX-V373/HTR-3065

3. Removal of DIGITAL P.C.B.

a. Remove CB222 and CB223 (Fig. 2)
b. Unlock and remove CB262. (Fig. 2)
c. Remove screw (④). (Fig. 2)
d. Remove 2 screws (⑤) and 5 screws (⑥). (Fig. 3)
e. Remove the DIGITAL P.C.B. which is connected

directly to the OPERATION (4) P.C.B. with board-to­board connectors. (Fig. 2)

4. Removal of OPERATION (4) P.C.B.

a. Remove CB194. (Fig. 2)
b. Remove screw (⑦). (Fig. 2)
c. Remove screw (⑧). (Fig. 3)
d. Remove the OPERATION (4) P.C.B. which is

connected directly to the MAIN (1) P.C.B. with board­to-board connectors. (Fig. 2)

DIGITAL P.C.B.

OPERATION (4) P.C.B.

3. DIGITALP.C.B. の外し方

a. CB222、CB223 を外します。（Fig.2）
b. ロックを外し、CB262 を外します。（Fig.2）
c. ④のネジ 1本を外します。（Fig.2）
d. ⑤のネジ 2 本、⑥のネジ 5 本を外します。（Fig.3）
e. DIGITALP.C.B.を外します。ただし、DIGITALP.C.B. は

OPERATION（4）P.C.B. に基板対基板コネクターで直
接接続されています。（Fig.2）

4. OPERATION（4）P.C.B. の外し方

a. CB194 を外します。（Fig.2）
b. ⑦のネジ 1 本を外します。（Fig.2）
c. ⑧のネジ 1 本を外します。（Fig.3）
d. OPERATION（4）P.C.B. を外します。ただし、

OPERATION（4）P.C.B. は MAIN（1）P.C.B. に基板対基
板コネクターで直接接続されています。（Fig.2）

CB223

CB222

CB262

DIGITAL P.C.B.

CB263

CB264

RX-V373/HTR-3065

CB223
CB222

CB262

OPERATION (4) P.C.B.

MAIN (1) P.C.B.

CB191

④

⑦

CB22

Board-to-board
connectors

基板対基板コネクター

CB196

CB194

CB195

CB192

CB21

Board-to-board
connectors

基板対基板コネクター

Fig. 2

⑤

⑤

⑧

⑥

Fig. 3

⑨

19

RX-V373/HTR-3065

When checking the DIGITAL P.C.B.:

• Put the rubber sheet and cloth over this unit, and
place the DIGITAL P.C.B. on them. (Fig. 4)

• Connect ST201 on DIGITAL P.C.B. to the chassis
with a ground lead. (Fig. 4)

• Reconnect all cables (connectors) that have been
disconnected. Be sure to use the P.C.B. CHECKING
JIG (Part No. WW483800) to connect between the
following connectors.

CB263 on DIGITAL P.C.B. – CB196 on OPERATION
(4) P.C.B.
CB264 on DIGITAL P.C.B. – CB195 on OPERATION
(4) P.C.B.

• When connecting the flexible flat cable, be careful
with polarity.

RX-V373/HTR-3065

DIGITALP.C.B. をチェックする場合には：

・ 本機の上にゴムシートと布を敷き、その上に DIGITAL

・ DIGITALP.C.B. の ST201 のアースをリード線でシャー

・ 外したケーブル（コネクター）をすべて接続しま

・ フラットケーブルを接続する際、極性に注意してく

DIGITAL P.C.B.

CB263

P.C.B. を置きます。（Fig.4）

シに接続してください。（Fig.4）

す。ただし下記のコネクター間を接続するには
P.C.B. チェック用冶具（部品番号 :WW483800）を使
用してください。

DIGITALP.C.B.のCB263‒OPERATION(4)P.C.B.の
CB196
DIGITALP.C.B.のCB264‒OPERATION(4)P.C.B.の
CB195

ださい。

CB264

P.C.B. CHECKING JIG

P.C.B.チェック用冶具

Rubber sheet and cloth

ゴムシートと布

ST201

Ground lead

アース線

OPERATION (4) P.C.B.

CB196

CB195

Chassis

シャーシ

Fig. 4

20

RX-V373/HTR-3065

When checking the MAIN (1) P.C.B.:

a. Remove the top cover. (Fig. 1)
b. Remove 3 screws (⑨). (Fig. 3)
c. Remove 5 screws (⑩) and 4 screws (⑪). (Fig. 5)
d. Place the P.C.B.s (with rear panel) upright. (Fig. 6)
e. Connect the heatsink, rear panel and MAIN (1) P.C.B.

(G3) to the chassis with a ground lead. (Fig. 6)

⑩

⑪

MAIN（1）P.C.B. をチェックする場合には：

a. トップカバーを外します。（Fig.1）
b. ⑨のネジ 3 本を外します。（Fig.3）
c. ⑩のネジ 5 本、⑪のネジ 4 本を外します。（Fig.5）
d. リアパネルと一緒に P.C.B. を立ち上げて置きます。

(Fig.6）

e. ヒートシンク、リアパネル、MAIN（1）P.C.B. の G3

のアースをリード線でシャーシに接続してください。

（Fig.6）

RX-V373/HTR-3065

Rear panel

リアパネル

⑩⑩

Fig. 5

MAIN (1) P.C.B.

Heatsink

ヒートシンク

Ground lead

アース線

G3

Chassis

シャーシ

Ground lead

アース線

Fig. 6

21

RX-V373/HTR-3065

■ UPDATING FIRMWARE /

When the following parts are replaced, the firmware must
be updated to the latest version.

DIGITAL P.C.B.
OSD FLASH ROM: IC201 on DIGITAL P.C.B.
USB FLASH ROM: IC222 on DIGITAL P.C.B.
DSP FLASH ROM: IC243 on DIGITAL P.C.B.

Note: There are 2 types procedures for updating the

● Confirmation of firmware version and checksum

Before and after updating the firmware, check the
firmware version and checksum by using the self­diagnostic function menu.

Start up the self-diagnostic function and select “25.

RX-V373/HTR-3065

ROM VER/SUM” menu.

Using the sub-menu, have the firmware version and
checksum displayed, and note them down.
(See “SELF-DIAGNOSTIC FUNCTION”)

* When the firmware version is different from

written one after updating, perform the updating
procedure again from the beginning.

ファームウェアのアップデート

firmware. One is for the U, C, R, K, A, B, G, F, L, S,
H and J models, and another is for the T model.
Perform either depending on the destinations.

下記の部品を交換した場合、ファームウェアを最新バー
ジョンにアップデートする必要があります。

DIGITALP.C.B.
OSD フラッシュ ROM： DIGITALP.C.B. の IC201
USB フラッシュ ROM： DIGITALP.C.B. の IC222
DSP フラッシュ ROM： DIGITALP.C.B. の IC243

注意 : ファームウェアアップデートの手順は２種類あ

ります。ひとつは U、C、R、K、A、B、G、F、L、S、
H、J 仕向け用で、もうひとつは T 仕向け用です。
仕向け先に応じてどちらかを実行してください。

● ファームウェアのバージョンとチェックサムの
確認

ファームウェアのアップデートの前後に、ファーム
ウェアのバージョンとチェックサムをダイアグで確
認します。

ダイアグを起動し、“25.ROM VER/SUM” メニューを
選択します。

サブメニューでファームウェアのバージョンと
チェックサムを表示し、それらを書きとめます。

（「ダイアグ」参照）

※ アップデート後、ファームウェアのバージョンが

書き込まれたものと異なる場合、アップデートの
操作を最初からやり直してください。

● Initializing the back-up IC
(EEPROM: IC221 on DIGITAL P.C.B.)

After updating the firmware, the back-up IC MUST
be initialized by the following procedure store the
setting information (soundfield parameters, system
memory and tuner presetting, etc.) properly.

Start up the self-diagnostic function and select “24.
FACTORY PRESET” menu. (See “SELF-DIAGNOSTIC
FUNCTION”)

Select “PRESET RSRV”, press the “
turn off the power once and turn on the power again.
Then the back-up IC is initialized.

” (Power) key to

● バックアップ IC の初期化
（EEPROM：DIGITALP.C.B. の IC221）

ファームウェアのアップデート後、設定情報（音
場プログラムのパラメーターやシステムメモリー、
チューナープリセット等）を正常に保存するために、
下記の方法でバックアップ IC を初期化する必要が
あります。

本機のダイアグを起動し、“24.FACTORYPRESET” メ
ニューを選択します。

（「ダイアグ」参照）

“PRESETRSRV” を選択し、“
電源を一度きってから、もう一度電源を入れるとバッ
クアップ IC が初期化されます。

”（電源）キーを押して

22

RX-V373/HTR-3065

Updating

U, C, R, K, A, B, G, F, L, S, H and J models

● Required Tools

• USB storage device

• Firmware
RX-V373/HTR-3065: R0303-xxx.bin

● Preparation

1. Download the latest firmware from the specified
download source to the folder of the PC.

2. Copy the latest firmware from the PC to the root
folder of the USB storage device.

Note: When the latest firmware is copied to a sub-

folder of the USB storage device, the update
will not proceed.

● Operation Procedures

1. Insert the USB storage device to the USB jack.
(Fig. 1)

2. While pressing the “INFO” key, connect the power
cable to the AC outlet. (Fig. 1)

U、C、R、K、A、B、G、F、L、S、H、J

仕向けのアップデート

● 必要なツール

・ USB フラッシュメモリー
・ ファームウェア

RX-V373 ／ HTR-3065：R0303-xxx.bin

● 準備

1. 指定のダウンロード先から、最新のファームウェ
アを PC のフォルダへダウンロードしてください。

2. PC から USB フラッシュメモリーのルートフォル
ダへ最新のファームウェアをコピーします。

注意 : 最新のファームウェアをサブフォルダにコピー

した場合、書き込みはできません。

● 操作手順

1. USB 端子に USB フラッシュメモリーを差し込みま
す。（Fig.1）

2. “INFO” キーを押しながら、電源コードを AC コン
セントに接続します。（Fig.1）

RX-V373/HTR-3065

" " (Power) key

""（電源）キー

USB jack

USB 端子

"INFO" key

“INFO” キー

USB storage device

USB フラッシュメモリー

Fig. 1

23

RX-V373/HTR-3065

3. The USB UPDATE mode is activated and “USB
Update” is displayed. Writing of the firmware
starts automatically. (Fig. 2)

Writing is started. /

4. When writing of the firmware is completed,
“Update Success”, “Please...” and “Power Off!”
are displayed repeatedly. (Fig. 3)

Writing is completed. /

RX-V373/HTR-3065

5. Press the “ ” (Power) key to turn off the power.
(Fig. 1)

6. Remove the USB storage device from the USB
jack. (Fig. 1)

7. Start up the self-diagnostic function and check
that the firmware version and checksum are
the same as written ones. (See “Confirmation of
firmware version and checksum”)

書き込み開始

USBUpdate

UpdateSuccess

書き込み完了

VERIFYING...

Fig. 2

Please...

Fig. 3

3. USBUPDATE モードが起動し、“USBUpdate” が表
示されて、ファームウェアの書き込みが自動的に
開始されます。（Fig.2）

Writing being executed. /

書き込み中

Sx-x:xx%

4. ファームウェアの書き込み完了後、“Update
Success”、“Please...”、“PowerOff!” が繰り返し表
示されます。（Fig.3）

PowerOff!

5. “

”（電源）キーを押して電源を切ります。（Fig.1）

6. USB 端子から USB フラッシュメモリーを抜きま
す。（Fig.1）

7. ダイアグを起動し、ファームウェアのバージョン
とチェックサムが、書き込まれたものと同じであ
ることを確認します。（“ファームウェアのバージョ
ンとチェックサムの確認” 参照）

24

UpdatingT model

● Required Tools

• CD, DVD or BD player (with DIGITAL OUTPUT (OPTICAL or COAXIAL) jack)
* The following models can be used as a tool to update the firmware.

CD player: CD-C600/CD-S1000/CD-S2000/CD-S300/CD-S700/CDX-496/CDX-596/CDX-890
DVD player: DV-C6760/DVD-840/DVD-C740/DVD-C750/DVD-C940/DVD-C950/DVD-CX1/DVD-S1200/

DVD-S1800/DVD-S2300(MKII)/DVD-S2700/DVD-S30/DVD-S510/DVD-S520/DVD-S530/DVD-S540/

DVD-S550/DVD-S657/DVD-S700/DVD-S80/DVD-S840
BD player: BD-940/BD-S1065/BD-S1900/BD-S2900/BD-S671
Others: CDR-D651/CDR-HD1000/CDR-HD1300/CDR-HD1500/DV-SL100/CDX-E100/CRX-430/CRX-E150/

RDX-E700

• Optical cable (when OPTICAL jack is used)

• Digital audio pin cable (when COAXIAL jack is used)

• Firmware CD
* Download the latest firmware from the specified download source and create the firmware CD.

RX-V373/HTR-3065

RX-V373/HTR-3065

● Connection

Connect a CD/DVD/BD player to this unit as shown below. (Fig. 4)

Example of connection between digital OPTICAL jacks

This unit

Optical cable

Example of connection between digital COAXIAL jacks

This unit

CD/DVD/BD player

CD/DVD/BD player

Digital audio pin cable

Fig. 4

25

RX-V373/HTR-3065

● Operation Procedures

1. While pressing the “MEMORY” key, connect the power cable to the AC outlet. (Fig. 5)
The FIRMWARE UPDATE mode is activated and “CDDA Upgrader” is displayed. (Fig. 5)

RX-V373/HTR-3065

"MEMORY" key

Display

CDDAUpgrader

Fig. 5

2. Play the firmware CD on the CD/DVD/BD player. Writing of the firmware starts automatically. (Fig. 6)

3. When writing of the firmware is completed, “Update Success”, “Please...” and “Power off!!” are displayed
repeatedly. (Fig. 6)

Writing is started Writing is completed

XXXXXXXXXX UpdateSuccess

XXXXXX

: Received data

Please...

Poweroff!!

Fig. 6

* If the display remains unchanged for more than 10 seconds after starting the firmware CD play procedure,

perform the firmware CD play procedure again from the beginning.

4. Press the “

” (Power) key to turn off the power.

5. Eject the firmware CD from the CD/DVD/BD player.

6. Start up the self-diagnostic function and check that the firmware version and checksum are the same as written
ones. (See “Confirmation of firmware version and checksum”)

26

RX-V373/HTR-3065

■ SELF-DIAGNOSTIC FUNCTION /

This unit has self-diagnostic functions that are intended
for inspection, measurement and location of faulty point.

There are 26 main menu items, each of which has sub­menu items.

Listed in the table below are main menu items and sub­menu items.

Note: Some of the menu items listed below may not apply

to the models covered in this service manual.

ダイアグ（自己診断機能）

本機には、検査、測定、不良個所の発見を目的にしたダ
イアグ（自己診断機能）があります。

ダイアグには 26 個のメインメニューがあり、そのそれぞ
れにサブメニューがあります。

下表はダイアグメニュー一覧です。

注意： 以下のメニュー項目の一部は、このサービスマニュ

アルに記載されているモデルに適用されない場合
があります。

No. Main menu Sub-menu

1 BYPASS 1 ANALOG BYPASS
2 RAM THROUGH 1 RAM MARGIN

2 RAM FULL ALL
3 RAM FULL CENTER
4 RAM FULL SURROUND
5 RAM FULL SURROUND BACK

(

サービスでは使用しません

Not for service /

6 RAM FULL SUBWOOFER

3 HDMI AUDIO 1 SPDIF

2 Multi
3 DSD
4 ARC

4 SPEAKERS SET 1 FRONT: SML 0dB

2 CENTER: NONE
3 LFE/BASS: FRNT
4 TONE: MAX
5 TONE: MIN
6 SPEAKER 6-ohms

(

サービスでは使用しません

Not for service /

5 LIMITER CONTROL 1 AC_B: Hi

Not for service /

(

サービスでは使用しません

)

2 AC_B: Lo
3 LIM/PLDET/THM

6 MIC CHECK 1 MIC CHECK

(U, C, R, K, A, B, G, F, L, S, H, J models)

7 FL/MONITOR CHECK 1 INITIAL DISPLAY

2 ALL SEGMENT OFF/MONITOR (VIDEO) MUTE
3 ALL SEGMENT ON/MONITOR (COMPONENT) MUTE
4 CHECK PATTERN 1

5 CHECK PATTERN 2
8 MANUAL TEST 1 TEST ALL
9 AD DATA CHECK 1 PS/DC

2 TH1/TH2 (U, C models)

3 TH3

4 AMP

5 K1/K2

10 VIDEO CHECK 1 I2C

2 DIGITAL COMPONENT

3 DIGITAL CVBS

4 DIGITAL Y/C

(

Not for service /

(

Not for service /

(

サービスでは使用しません

サービスでは使用しません

サービスでは使用しません

Not for service /

5 ANALOG BYPASS

RX-V373/HTR-3065

)

)

)

)

)

27

RX-V373/HTR-3065

No. Main menu Sub-menu

11 NO MENU Invalidity
12 NO MENU Invalidity
13 NO MENU Invalidity
14 NO MENU Invalidity
15 HDMI INFORMATION 1 MODEL NAME

16 HDMI SELECT 1 HDMI NONE

17 USB 1 USB FILE 1

(U, C, R, K, A, B, G, F, L, S, H, J models) 2 USB FILE 2

RX-V373/HTR-3065

18 NO MENU Invalidity
19 BUS CHECK 1 TI BUS:

20 NO MENU Invalidity
21 PROTECTION HISTORY 1 HISTORY 1

22 SOFT SWITCH 1 SWITCH MODE

23 UPDATE 1 TI FLASH BOOT

Not for service /

(

24 FACTORY PRESET 1 PRESET INHIBIT

25 ROM VER/SUM/PORT 1 SYSTEM VERSION

26 MODEL/DESTINATION 1 MODEL/DEST

Not for service /

(

サービスでは使用しません

サービスでは使用しません

2 PRODUCT ID

2 HDMI IN 1
3 HDMI IN 2
4 HDMI IN 3
5 HDMI IN 4

3 USB IPL: OK
4 USB iPod CHECK

2 EEPROM:

2 HISTORY 2
3 HISTORY 3
4 HISTORY 4

2 MODEL
3 DESTINATION

)

2 PRESET RESERVED

2 FIRMWARE VERSION
3 ALL CHECKSUM
4 TI (DSP) FLASH ROM VERSION
5 TI (DSP) FLASH ROM CHECKSUM
6 OSD FLASH ROM VERSION
7 OSD FLASH ROM CHECKSUM
8 USB FLASH ROM VERSION
9 USB FLASH ROM CHECKSUM

10 MODEL/DESTINATION

Not for service /

11 Verify

)

2 M/D:

(

サービスでは使用しません

)

28

RX-V373/HTR-3065

● Starting Self-Diagnostic Function

While pressing the “TONE CONTROL” and “STRAIGHT”
keys, press the “
release those 2 keys.

The self-diagnostic function mode is activated.

(Power)

” (Power) key to turn on the power, and

Keys of this unit /

● ダイアグの起動

“TONECONTROL” と “STRAIGHT” キーを押しながら “ ”（電
源）キーを押して電源を入れた後、2 つのキーを放します。

ダイアグが起動します。

本機キー

RX-V373/HTR-3065

While pressing these keys, turn on the power.

これらのキーを押しながら、電源を入れます。

● Starting Self-Diagnostic Function in
the protection cancel mode

If the protection function works and causes hindrance
to troubleshooting, cancel the protection function by the
procedure below, and it will be possible to enter the self­diagnostic function mode. (The protection functions other
than the excess current detect function will be disabled.)

While pressing the “TONE CONTROL” and “STRAIGHT”
keys, press the “
keep pressing those 2 keys and “
seconds or longer.

The self-diagnostic function mode is activated with the
protection functions disabled.

In this mode, the “SLEEP” segment of the FL display flashes
to indicate that the mode is self-diagnostic function mode
with the protection functions disabled.

CAUTION!

Using this unit with the protection function disabled may
cause further damage to this unit. Use special care for
this point when using this mode.

” (Power) key to turn on the power and

” (Power) key for 3

●プロテクション解除モードでの起動

プロテクションが動作することにより、故障箇所の診断
に支障をきたすような場合は、次の方法によりプロテク
ションを解除した状態でダイアグモードに入ることがで
きます。（過電流検出以外のプロテクション動作を解除す
る）

“TONECONTROL” と “STRAIGHT” キーを押しながら “
源）キーを押して電源を入れ、2 つのキーと “
を 3 秒以上押し続けます。

プロテクション解除モードでダイアグが起動します。
このモードでは FL の “SLEEP” セグメントが点滅し、プロ

テクションを解除した状態でのダイアグモードであるこ
とを知らせます。

注意！

プロテクションを解除した状態でのダイアグモードは、
危険な状態でもプロテクションが作動しないため、動作
させると、本機を破壊することがあります。このモード
を使用する場合は十分注意してください。

”（電源）キー

”（電

29

RX-V373/HTR-3065

● Canceling Self-Diagnostic Function

1. Before canceling self-diagnostic function, execute
setting for “24. FACTORY PRESET” menu. (Memory
initialization inhibited or Memory initialized).

* In order to keep the user memory preserved, be

sure to select PRESET INHIBIT (Memory initialization
inhibited).

2. Press the “

● Display provided when Self-Diagnostic
Function started

The display is as described below depending on the
situation when the power to this unit is turned off.

RX-V373/HTR-3065

1. When the power is turned off by usual operation:

“NO PROTECT” is displayed. Then “1. ANALOG
BYPASS” is displayed in a few seconds.

” (Power) key to turn off the power.

● ダイアグの解除

1. ダイアグを解除する前に、“24. FACTORYPRESET” メ
ニュー（メモリーの初期化禁止／またはメモリーの
初期化）の設定をします。

※ ユーザーメモリーを保持したい場合は、必ず

PRESETINHIBIT（メモリー初期化禁止）を選択し
てください。

2. “

”（電源）キーを押して電源を切ります。

● ダイアグ起動時の表示

本機の電源が切れたときの状況により、下記のように表
示されます。

1. 通常の操作で電源を切った場合：

“NOPROTECT” が表示されます。数秒後、“1.ANALOG
BYPASS” が表示されます。

Opening message /

NOPROTECT 1.ANALOGBYPAS

オープニング表示

After a few seconds /

Main menu display /

数秒後

メインメニュー表示

30