Yamaha RX-V375, HTR-3066, HTR-2866 Service Manual

AV RECEIVER

RX-V375/HTR-3066/

HTR-2866

SERVICE MANUAL

Note:

When the DIGITAL P.C.B. or IC225 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: IC221 on DIGITAL P.C.B.) to have proper operation. (For details, refer to “S5. SOFT SWITCH” menu of the self-diagnostic function.)

注意：

DIGITALP.C.B. または DIGITALP.C.B. の IC225 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 IC221）へ書き込む必要があります。（詳細は、ダイアグの “S5.SOFTSWITCH” メニューを参照してください。）

RX-V375/HTR-3066/

HTR-2866

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. Modiﬁ cations 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.

■ CONTENTS

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

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

REAR PANELS .........................................................5–12

REMOTE CONTROL PANELS ..................................... 13

SPECIFICATIONS /

INTERNAL VIEW .......................................................... 19

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）

POWER AMPLIFIER ADJUSTMENT /

パワーアンプ調整

参考仕様

.......................................................61

................................. 14–18

サービス時の注意事項

分解手順

............................ 24–28

..................................... 29–60

...........20–23

.....19

IMPORTANT NOTICE

DISPLAY DATA ....................................................... 62–63

IC DATA ...................................................................64–71

BLOCK DIAGRAMS ................................................73–74

WIRING DIAGRAM ....................................................... 75

PRINTED CIRCUIT BOARDS .................................76–93

PIN CONNECTION DIAGRAMS ...................................94

SCHEMATIC DIAGRAMS ..................................... 95–106

REPLACEMENT PARTS LIST ............................ 107–121

REMOTE CONTROL ........................................... 122–126

CONFIGURING THE SYSTEM SETTINGS .................127

システム設定を変更する

FIRMWARE UPDATING PROCEDURE .............. 129–132

ファームウェア更新手順

............................................. 128

..................................... 133–136

101261

P.O.Box 1, Hamamatsu, Japan

'13.03

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

■ 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

• 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。

■ FRONT PANELS

RX-V375 (U, C, R, K, A, B, G, F, L, S, H, J models)

RX-V375/HTR-3066/HTR-2866

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

J model

RX-V375/HTR-3066/

HTR-2866

RX-V375 (T model)

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

HTR-3066 (U, C, R, K, A, B, G, F, L, S, H models)

HTR-3066 (T model)

HTR-2866 (C, R, K, A, B, G, F, L, S, H models)

■ REAR PANELS

RX-V375 (U, C models)

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

RX-V375 (R, S models)

RX-V375 (T model)

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

RX-V375 (K model)

RX-V375 (A model)

RX-V375 (B, G, F models)

RX-V375 (L model)

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

RX-V375 (H model)

RX-V375 (J model)

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

HTR-3066 (U, C models)

HTR-3066 (R, S models)

HTR-3066 (T model)

HTR-3066 (K model)

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

HTR-3066 (A model)

HTR-3066 (B, G, F models)

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

HTR-3066 (L model)

HTR-3066 (H model)

HTR-2866 (C model)

HTR-2866 (R, S models)

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

HTR-2866 (K model)

HTR-2866 (A model)

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

HTR-2866 (B, G, F models)

HTR-2866 (L model)

HTR-2866 (H model)

■ REMOTE CONTROL PANELS

RAV463

RX-V375

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

(

HTR-3066

(

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

)

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

RAV462

RX-V375 (T model)

HTR-3066 (T model)

HTR-2866

Remote control sheet

(T model)

RX-V375/HTR-3066/HTR-2866

RAV491

RX-V375 (A model)

HTR-3066 (A model)

RX-V375/HTR-3066/

HTR-2866

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

■ 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)

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

– 2 channels driven simultaneously –

U, C models (8 ohms)

(20 Hz to 20 kHz, 0.09 % THD)

– 2 channels driven simultaneously –

U, C models (8 ohms)

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

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 (1 channel driven)

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-A ............................................120 or more

Input Sensitivity/Input Impedance /

(1 kHz, 100 W/8 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 (2 ch stereo and FRONT SP: small)

............................................................................. 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

参考仕様

オーディオ部

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

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

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

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

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

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

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

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

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

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

(JEITA)

(IHF)

ダイナミックパワー

ダンピングファクタ

最大許容入力

出力電圧／出力インピーダンス

再生周波数帯域

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)

(1 kHz, 50 mV, 8 ohms)

(10 Hz to 100 kHz)

Signal to Noise Ratio /

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

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

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.

Optical Jack, Coaxial Jack Support Frequencies /

Optical 端子、Coaxial 端子対応 fs

............................................................................... 32 kHz to 96 kHz

■ 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

Pb/Pr ...................................................................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

信号対雑音比

残留ノイズ

チャンネルセパレーション

可変範囲／ステップ

フィルタ特性

ビデオ部

ビデオ信号方式

(IHF-A network)

トーンコントロール特性

コンポジットビデオ信号

コンポーネントビデオ信号

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

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

■ FM Section /

Tuning Range /

FM部

受信周波数範囲

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 /

50dBSN 感度

(IHF)

(1 kHz, 100 % MOD.)

Mono ......................................................................... 2 μV (17.3 dBf)

Signal to Noise Ratio /

信号対雑音比

(IHF)

Mono ........................................................................................71 dB

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

Harmonic Distortion / 歪率 (1 kHz)

Mono ........................................................................................ 0.5 %

Stereo ......................................................................................0.6 %

Antenna Input /

アンテナ入力

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

■ AM Section /

Tuning Range /

AM部

受信周波数範囲

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 /

アンテナ

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

■ General /

Power Supply /

総合

電源電圧

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

R, S models .................................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, S 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

............................................................................... 7.4 kg (16.3 lbs.)

Finish /

仕上げ

[RX-V375]

T model ..........................................................................Gold color

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

R, K, B, G, F, L models .............................................Titanium color

[HTR-3066]

T model ..........................................................................Gold color

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

B, G models .............................................................Titanium color

[HTR-2866]

C, R, K, A, B, G, F, L, S, H models ............................... Black color

B, G models .............................................................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 m)

(RX-V375/HTR-3066:

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

) .......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

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。Dolby、ドルビー、ProLogic およびダブル D 記号はドルビーラボラトリーズの商標です。

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 in the United States and other countries.

HDMI、HDMI ロゴ、および High-DeﬁnitionMultimediaInterface は、米国およびその他の国々における HDMILicensingLLC の商標または登録商標です。

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

“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

Top view

(1-7/8")

ø 60

AAC ロゴマーク

はドルビーラボラトリーズの商標です。

(1")

170 (6-5/8")

(2")

(2-1/4")

Front view

335 (13-1/4")

435 (17-1/8")

315 (12-3/8")

275 (10-7/8")

(7/8")

130 (5-1/8")

151 (5-7/8")

Unit: mm (inch)

(7/8")

単位：mm（インチ）

• SET MENU TABLE

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

MAIN

Speaker Configuration Subwoofer [Use] / None

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

* “Extra Bass” is not available when “Subwoofer” is set to “None”, or

when “Front” is set to “Small”.

“ExtraBass” は “Subwoofer：None” または “Front：Small” と

設定した場合、選択不可能

Distance Unit Meter / Feet

Front L 0.30 to 24.00 m, [3.00 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, [2.40 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, [3.00 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

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

[GEQ] / Off (

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

“PEQ”

RX-V375/HTR-3066: U, C, R, K, A, B, G, F, L, S, H, J models

HTR-2866

)

は自動測定（

YPAO

）実行後のみ選択可能

)

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

MAIN

HDMI Configuration HDMI Control [Off] / On (U, C, R, T, K, A, B, G, F, L, S, H models)

Sound DSP Parameter Panorama [Off] / On

ECO Auto Power Standby U, C, R, T, K, A, L, S, H, J models:

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

Language English (English) /

(U, C, R, T, K, A, B, G, F, L, S, H models) Italiano (Italian) / 中文 (Chinese)

SUB-MENU PARAMETER VALUE [INITIAL VALUE]

Off / [On] (J model)

Audio Output Amp Off / [On]

HDMI OUT (TV) [Off] / On

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

“HDMI Control”が“Off”

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

Standby Sync Off / On / [Auto]

ARC Off / [On]

SCENE BD / DVD

RADIO

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

“HDMI Control”が“On”

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

Volume 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

ECO Mode [Off] / On

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

Memory Guard [Off] / On

の場合のみ設定可能

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

“HDMI Control”が“On”

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

“HDMI Control”が“On”

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

“HDMI Control”が“On”

Off / [On]

[Off] / On

[Off] / 2 hours / 4 hours / 8 hours /12 hours

B, G, F models:

Off / 2 Hours / 4 Hours / [8 Hours] / 12 Hours

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 /

Deutsch (German) / Español (Spanish) / Русский (Russian) /

の場合のみ設定可能

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

iPod / HD DVD

(Japanese) / Français (French) /

日本語

■ INTERNAL VIEW

Top view

12 436

Front view

12 13

RX-V375/HTR-3066/

RX-V375/HTR-3066/HTR-2866

OPERATION (3) P.C.B.

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

MAIN (1) P.C.B.

AM/FM TUNER

DIGITAL P.C.B.

MAIN (2) P.C.B.

OPERATION (4) P.C.B.

MAIN (5) P.C.B.

OPERATION (2) P.C.B.

MAIN (4) P.C.B.

POWER TRANSFORMER

OPERATION (7) P.C.B.

OPERATION (1) P.C.B.

OPERATION (6) P.C.B.

OPERATION (5) P.C.B.

HTR-2866

1415

■ 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”.

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

■ DISASSEMBLY PROCEDURES /

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

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. 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 (RX-V375:

U, C, R, K, A, B, G, F, L, S, H, J models / HTR-3066: U,

C, R, K, A, B, G, F, L, S, H models). (Fig. 1) c. Unlock and remove CB136. (Fig. 1) d. Release hook, and then remove the front panel unit.

(Fig. 1)

Remove CB136 and CB262

Connected

接続

Cable

ケーブル

Connect CB136 and CB262

Connected

接続

Unlock the connector

コネクターロック解除

Remove the cable

ケーブルを外す

1 1

Lock the connector

コネクターロック

Insert the cable

ケーブルを差し込む

②

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

Cable

ケーブル

1 1

③

CB136

Front panel unit

フロントパネルユニット

②

CB221

CB166

CB281

CB193

③

Hook

③

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

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

RX-V375

HTR-3066

Fig. 1

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

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

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

OPERATION (4) P.C.B.

MAIN (1) P.C.B.

CB191

④

⑦

CB22

Fig. 2

⑤

⑧

⑥

⑤

Fig. 3

⑨

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

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.

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

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.

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

P.C.B. を置きます。（Fig.4）

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

シに接続してください。（Fig.4）

・ 外したケーブル（コネクター）をすべて接続しま

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

・ フラットケーブルを接続する際、極性に注意してく

ださい。

Rubber sheet and cloth

ゴムシートと布

ST201

Ground lead

アース線

DIGITAL P.C.B.

CB263

Fig. 4

CB264

P.C.B. CHECKING JIG

P.C.B.チェック用冶具

OPERATION (4) P.C.B.

CB196

CB195

Chassis

シャーシ

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

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

a. Remove the top cover. (For details, refer to “1. Removal

of Top Cover”.) b. Remove 3 screws (⑨). (Fig. 5) 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)

⑨

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。（分解手順の “1. トップカ

バーの外し方” 参照） b. ⑨のネジ 3 本を外します。（Fig.5） 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）

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

Chassis

シャーシ

Ground lead

アース線

Fig. 6

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

■ UPDATING FIRMWARE /

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

ファームウェアのアップデート

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. IC225 on DIGITAL P.C.B.

There are 2 types to write the firmware. Depending on model name and destination.

Method /

Writing method using the USB storage device U, C, R, K, A,

USB フラッシュメモリーを使用して書き込む方法

Writing method using the CD

CD を使用して書き込む方法

方法

Support model name and destination /

RX-V375/HTR-3066 HTR-2866

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

● 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 “S4. ROM VERSION/CHECKSUM” menu.

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

* When the firmware version is different from

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

DIGITALP.C.B. DIGITALP.C.B. の IC225

T model

● ファームウェアのバージョンとチェックサムの

対応するモデル名と仕向け先

C, R, K, A,

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

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、“S4.ROM VERSION/CHECKSUM” 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。

（詳細は “ダイアグ” を参照してください。）

※ 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 “S3. FACTORY PRESET” menu. (For details, refer to “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、“S3.FACTORYPRESET” メニューを選択します。

（詳細は “ダイアグ” を参照してください。）

“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

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

Writing method

using the USB storage device

RX-V375/HTR-3066

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

● Required Tools

• USB storage device

• Firmware ......................................... xxxx-xxxx.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)

USBフラッシュメモリーを使用して

書き込む方法

● 必要なツール

・ USB フラッシュメモリー

・ ファームウェア............................................. xxxx-xxxx.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. While pressing the “INFO” key, connect the power cable to the AC outlet. (Fig. 1)

" " (Power) key

""（電源）キー

"INFO" key

“INFO” キー

USB storage device

USB フラッシュメモリー

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）

USB jack

USB 端子

Fig. 1

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

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

Writing is started. /



USBUpdate

書き込み開始



VERIFYING...

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

Writing is completed. /



UpdateSuccess

書き込み完了



Please...

Fig. 2

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. 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. (For details, refer to “Confirmation of firmware version and checksum”)

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。

（詳細は “ファームウェアのバージョンとチェック

サムの確認” を参照してください。）

Writing method using the CD

RX-V375/HTR-3066 (T model)

HTR-2066 (C, R, K, A, B, G, F, L, S, H models)

● 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)

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

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

● Connection

Connect a CD/DVD/BD player to this unit as shown below. (Fig. 1)

Example of connection between digital OPTICAL jacks

This unit

Optical cable

Example of connection between digital COAXIAL jacks

This unit

CD/DVD/BD player

Digital audio pin cable

Fig. 1

CD/DVD/BD player

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

● Operation Procedures

1. While pressing the “MEMORY” key, connect the power cable to the AC outlet. (Fig. 2) The FIRMWARE UPDATE mode is activated and “CDDA Upgrader” is displayed. (Fig. 2)

"MEMORY" key

Display



CDDAUpgrader

Fig. 2

2. Play the firmware CD on the CD/DVD/BD player. Writing of the firmware starts automatically. (Fig. 3)

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

Writing is started Writing is completed



XXXXXXXXXX

XXXXXX

: Received data



UpdateSuccess



Please...



PowerOff!

Fig. 3

* 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. (For details, refer to “Confirmation of firmware version and checksum”)

RX-V375/HTR-3066/HTR-2866

RX-V375/HTR-3066/

HTR-2866

■ SELF-DIAGNOSTIC FUNCTION /

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

There are 27 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 27 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 No. Sub-menu

A: Audio system /

オーディオ系

A1 DSP AUDIO 1 DSP MARGIN

2 DSP NON MARGIN 3 DSP FULL CENTER 4 DSP FULL SURROUND 5 DSP FULL SURROUND BACK

(

6 DSP FULL SUBWOOFER

A2 DIRECT AUDIO 1 ANALOG DIRECT

2 NET DIRECT

(

A3 HDMI AUDIO 1 HDMI AUTO

2 ARC

A4 SPEAKERS SET 1 FULL MUTE

2 BI-AMP 3 AC B : HIGH 4 AC B : LOW

( ( (

A5 MIC CHECK 1 MIC ROUTE CHECK A6 INVALID ITEM 1 INVALID ITEM

Not for service /

(

サービスでは使用しません

)

2 INVALID ITEM 3 INVALID ITEM

A7 DIR PLL 1 DIR PLL

Not for service /

(

サービスでは使用しません

)

A8 MANUAL TEST 1 TEST ALL H: HDMI /

HDMI

H1 INVALID ITEM 1 INVALID ITEM

Not for service /

(

D: Display system /

サービスでは使用しません

表示系

)

2 INVALID ITEM

D1 FL CHECK 1 INITIAL DISPLAY

2 ALL SEGMENT OFF 3 ALL SEGMENT ON 4 CHECK PATTERN 1 5 CHECK PATTERN 2

U: Universal system /

特殊端子系

U1 USB 1 USB FRONT 1 TRACK

2 USB BOOT 3 INVALID ITEM

(

4 APL ID CHECK

N: Network system /

ネットワーク系

N1 INVALID ITEM 1 INVALID ITEM

Not for service /

(

サービスでは使用しません

)

2 INVALID ITEM 3 INVALID ITEM 4 INVALID ITEM 5 INVALID ITEM 6 INVALID ITEM 7 INVALID ITEM 8 INVALID ITEM 9 INVALID ITEM

Not for service /

Not for service / Not for service / Not for service /

Not for service /

サービスでは使用しません

)

) ) )

)

RX-V375/HTR-3066/HTR-2866

HTR-2866

RX-V375/HTR-3066/

No. Main menu No. Sub-menu

C: Communication system /

C1 DIGITAL PCB CHECK 1 ALL

C2 HDMI INFO 1 HDMI MODEL NAME

C3 INVALID ITEM 1 INVALID ITEM

V: Video system / V1 ANALOG VIDEO CHECK 1 ANALOG BYPASS

V2 DIGITAL VIDEO CHECK 1 HDMI REPEAT

R: Radio system / R1 INVALID ITEM 1 INVALID ITEM

P: Power supply and protection system / P1 SYSTEM MONITOR 1 DC

P2 PROTECTION HISTORY 1 HISTORY 1

T: Troubleshooting Information / T1 TROUBLE SHOOTING INFORMATION 1 OPERATING TIME

Not for service /

(

Not for service /

(

通信・バスライン系

サービスでは使用しません

ビデオ系

TUNER・衛星放送系

サービスでは使用しません

サービス・設計用故障解析情報

2 MCPU OSD 3 OSD HDMI 4 VIDEO I/F 5 BUS DIR 6 BUS DSP 7 EEPROM 8 TUNER

2 HDMI PRODUCT ID

)

2 INVALID ITEM 3 INVALID ITEM 4 INVALID ITEM

2 MUTE CHECK

2 OSD-VIDEO OUT

)

2 INVALID ITEM

電源・プロテクション系

2PS 3 TMP 4 OUTPUT LEVEL 5 LIMITER CONTROL 6 USB-VBUS 7 KEY

2 POWER PORT 1 3 LAST INPUT 1 4 LAST VOLUME 1 5 HISTORY 2 6 POWER PORT 2 7 LAST INPUT 2 8 LAST VOLUME 2

9 HISTORY 3 10 POWER PORT 3 11 LAST INPUT 3 12 LAST VOLUME 3 13 HISTORY 4 14 POWER PORT 4 15 LAST INPUT 4 16 LAST VOLUME 4

2 POWER-RELAY ON

3 POWER AMP B

4 OUTPUT LEVEL

5 NRC (Net Restart Counter)

Not for service /

(

Not for service /

(

Not for service /

(

Not for service /

(

サービスでは使用しません

)

+ 108 hidden pages

Yamaha RX-V375, HTR-3066, HTR-2866 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

■ CONTENTS

■ TO SERVICE PERSONNEL

■ FRONT PANELS

HTR-2866

■ REAR PANELS

HTR-2866

■ REMOTE CONTROL PANELS

• DIMENSIONS

• SET MENU TABLE

■ INTERNAL VIEW

1. Removal of Top Cover

2. Removal of Front Panel Unit

3. Removal of DIGITAL P.C.B.

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

When checking the DIGITAL P.C.B.:

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

● Confirmation of firmware version and checksum

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

● Required Tools

● Preparation

Writing method using the CD

● Required Tools

● Connection

● Operation Procedures