Yamaha R-840 Service Manual

MICRO COMPONENT SYSTEM

MCR-940/MCR-840/MCR-640

RECEIVER/

R-840/

SPEAKER PACKAGE

NS-BP300

SERVICE MANUAL

• When accepting a repair order from the user, it is recommended to receive the R-840 and BD-940/DVD-840/CD640 as a set for the repair work.

• The MCR-940 consists of the R-840, BD-940 and NS-BP300. The MCR-840 consists of the R-840, DVD-840 and NS-BP300. The MCR-640 consists of the R-840, CD-640 and NS-BP300.

This service manual is for the R-840/NS-BP300. For service manual of the BD-940/DVD-840/CD-640, please refer to the following publication numbers:

BD-940: 101154 / DVD-840: 101155 / CD-640: 101156

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.

R-840/NS-BP300

■ CONTENTS

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

SYSTEM COMPOSITION ................................................3

FRONT PANELS ......................................................... 4–6

REAR PANELS ......................................................... 7–11

REMOTE CONTROL PANELS ..................................... 12

SPECIFICATIONS ................................................... 13–15

INTERNAL VIEW .......................................................... 16

DISASSEMBLY PROCEDURES ............................. 17–19

UPDATING FIRMWARE ..........................................20–24

SELF-DIAGNOSTIC FUNCTION ............................25–37

101153

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

redistributed either in print or electronically without permission.

CONFIRMATION OF IDLING CURRENT OF AMP UNIT

DISPLAY DATA .............................................................40

IC DATA ...................................................................41–44

PIN CONNECTION DIAGRAMS .............................45–47

BLOCK DIAGRAM ........................................................ 49

PRINTED CIRCUIT BOARDS .................................50–62

SCHEMATIC DIAGRAMS ....................................... 63–70

REPLACEMENT PARTS LIST ................................ 71–79

REMOTE CONTROL .....................................................80

SYSTEM CONNECTOR .......................................... 81–82

P.O.Box 1, Hamamatsu, Japan

....38–39

'09.11

R-840/NS-BP300

■ 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.

For U model

R-840/NS-BP300

“CAUTION”

“F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 3.5A, 125V

FUSE.”

For C model

CAUTION

F1: REPLACE WITH SAME TYPE 3.5A, 125V FUSE.

ATTENTION

F1: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 3.5A, 125V.

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

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.

R-840/NS-BP300

■ SYSTEM COMPOSITION

When accepting a repair order from the user, it is recommended to receive the R-840 and BD-940/DVD-840/CD-640 as a set for the repair work.

The MCR-940 consists of the R-840, BD-940 and NS-BP300. The MCR-840 consists of the R-840, DVD-840 and NS-BP300. The MCR-640 consists of the R-840, CD-640 and NS-BP300.

This service manual is for the R-840/NS-BP300. For service manual of the BD-940/DVD-840/CD-640, please refer to the following publication numbers:

BD-940: 101154 / DVD-840: 101155 / CD-640: 101156

MCR-940

▼ NS-BP300 ▼ NS-BP300

▼ BD-940▼ R-840

R-840/NS-BP300

MCR-840

▼ NS-BP300 ▼ NS-BP300

▼ R-840

▼ DVD-840

MCR-640

▼ NS-BP300 ▼ NS-BP300

▼ R-840

▼ CD-640

R-840/NS-BP300

■ FRONT PANELS

Top view

C, T, K, A, B, G, L, V models

R-840/NS-BP300

R-840

Front view

C, T, K, A, L, V models

A, B models

B, G models

R-840/NS-BP300

C, T, K, A, B, G, L, V models

R-840/NS-BP300

NS-BP300

■ REAR PANELS

C model

R-840/NS-BP300

R-840

R-840/NS-BP300

T model

R-840/NS-BP300

K model

R-840/NS-BP300

A model

B model

R-840/NS-BP300

G model

R-840/NS-BP300

L model

R-840/NS-BP300

V model

C, T, K, A, B, G, L, V models

R-840/NS-BP300

NS-BP300

R-840/NS-BP300

C, K, A, B, G, L, V models

T model

R-840/NS-BP300

■ REMOTE CONTROL PANELS

MCR-940 MCR-840 MCR-640

B, G, F models C, T, K, A, L, V models G, F models C, L, V models B, G models

R-840/NS-BP300

Key colors

A. Red B. Green C. Yellow D. Blue

■ SPECIFICATIONS

R-840/NS-BP300

R-840

■ Audio Section

Minimum RMS Output Power (Power Amp. Section)

(L/R drive, 1 kHz, 10 % THD, 6 ohms)

C, T, K, A, B, G, V models .............................................65 W + 65 W

L model .........................................................................60 W + 60 W

Dynamic Power Per Channel (IHF) (6 / 4 / 2 ohms)

C, T, K, A, B, G, V models ......................................... 60 / 75 / 100 W

L model ....................................................................... 55 / 70 / 92 W

MAX. Power Per Channel (1 kHz, 0.7 % THD, 4 ohms) [B, G models]

......................................................................................64 W + 64 W

IEC Power (1 kHz, 0.1 % THD, 6 ohms) [B, G models]

......................................................................................52 W + 52 W

Maximum Power (JEITA) (1 kHz, 10 % THD, 6 ohms) [L, V models]

V model ..................................................................................... 65 W

L model ..................................................................................... 60 W

Power Band Width (MAIN L/R drive, 0.1 % THD, 30 W, 6 ohms)

.................................................................................10 Hz to 50 kHz

Damping Factor (20 Hz to 20 kHz, 6 ohms)

......................................................................................... 60 or more

Input Sensitivity/Input Impedance

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

Maximum Input Voltage (1 kHz, 0.5 % THD)

DVD etc. ...................................................................................2.8 V

Rated Output Voltage/Output Impedance

SUBWOOFER ...........................................................................1.2 V

Headphone Jack Rated Output/Output Impedance

(1 kHz, 200 mV, 8 ohms)

Player etc. .............................................................. 130 mV / 8 ohms

Frequency Response (20 Hz to 20 kHz)

Player etc. ......................................................................... 0 ±0.5 dB

Total Harmonic Distortion (20 Hz to 20 kHz, 30 W, 6 ohms)

Player etc. to SP OUT .................................................0.04 % or less

Signal to Noise Ratio (IHF-A network)

Player (Input shorted 200 mV) ................................. 100 dB or more

Residual Noise (IHF-A network)

PURE DIRECT ON .................................................................110 μV

Channel Separation (DVD etc., Input 5.1 k-ohms shorted)

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

Tone Control Characteristics

Bass

Boost/Cut ........................................................±10 dB, step 50 Hz

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

Treble

Boost/Cut ......................................................±10 dB, step 20 kHz

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

■ FM Section

Tuning Range

C model ...............................................................87.5 to 107.9 MHz

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

50 dB Quieting Sensitivity (IHF) (1 kHz, 100 % MOD.)

Mono ...................................................................... 2.8 μV (20.2 dBf)

Signal to Noise Ratio (IHF)

Mono ........................................................................................73 dB

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

Harmonic Distortion (1 kHz)

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

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

Antenna Input

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

■ DAB Section [A, B models]

Tuning Range

............................................................ 174.0 to 240 MHz (BAND III)

■ General

Power Supply

C model ..................................................................AC 120 V, 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 models ............................................................ AC 230 V, 50 Hz

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

V model ........................................................... AC 110–120 V, 60 Hz

Power Consumption

C, T, K, L, V models ................................................................110 W

A, B, G models .......................................................................115 W

Standby Power Consumption (reference data)

......................................................................................0.3 W or less

Maximum Power Consumption (

................................................................................................ 400 W

Dimensions (W x H x D)

................................. 215 x 110 x 348 mm (8-1/2" x 4-3/8" x 13-3/4")

Weight

............................................................................... 5.7 kg (12.6 lbs.)

Finish

Black color ........................................... C, T, K, A, B, G, L, V models

Silver color ...........................................C, T, K, A, B, G, L, V models

Accessories

for R-840

Indoor FM antenna .....................................................................x 1

DAB wire antenna (B model) .....................................................x 1

DOCK cover ...............................................................................x 1

for MCR-940/MCR-840/MCR-640

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

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

Audio pin cable (1.0 m) .............................................................x 1

Video pin cable (1.5 m) ..............................................................x 1

System control cable (0.6 m) .....................................................x 1

USB cap .....................................................................................x 1

* Specifications are subject to change without notice due to

product improvements.

1 kHz, 10 % THD, 6 ohms

) [V model]

R-840/NS-BP300

NS-BP300

■ Speaker Section

Type ................................. 2-way bass reflex speaker system

Driver

Woofer .................................................13 cm (5-1/8") cone type

Tweeter ............................................2.5 cm (1") soft dome type

Frequency Response ...........................55 Hz to 28 kHz (-10dB)

55 Hz to 80 kHz (-30dB)

Impedance ...................................................................6 ohms

Nominal Input ................................................................60 W

Maximum Input ............................................................ 110 W

Sensitivity ..................................................... 85 dB/2.83 V/m

R-840/NS-BP300

Crossover Frequency ................................................... 3 kHz

Input Terminal ......................................... Screw/Banana type

Dimensions (W x H x D)

.............................. 176 x 318 x 305 mm (6-7/8" x 12-1/2" x 12")

Weight ................................................................. 4.3 kg (9.5 lbs.)

Finish

Black piano color (PN) ..................C, T, K, A, B, G, L, V models

White piano color (WH) .................C, T, K, A, B, G, L, V models

Accessories

Speaker cable (2.0 m) ..................................................................x 2

is a trademark.

“BD-LIVE” logo is a trademark of Blu-ray Disc Association.

“BONUSVIEW” is a trademark of Blu-ray Disc Association.

is a trademark of DVD Format/Logo Licensing Corporation.

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

MPEG Layer-3 audio decoding technology licensed from Fraunhofer IIS and Thomson multimedia.

Windows Media is either a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries.

“x.v.Color” and “x.v.Color” logo are trademarks.

“AVCHD” and the “AVCHD” logo are trademarks of Panasonic Corporation and Sony Corporation.

* Specifications are subject to change without notice due to

product improvements.

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

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

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

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

“iPod” is a trademark of Apple Inc., registered in the U.S. and other countries.

“Made for iPod” means that an electronic accessory has been designed to connect specifically to iPod and has been certified by the developer to meet Apple performance standards.

Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards.

Audio-visual material may consist of copyrighted works which must not be recorded without the authority of the owner of the copyright. Refer to relevant laws in your country.

This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights.

Use of this copyright protection technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision.

Reverse engineering or disassembly is prohibited.

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

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

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

V ..................... Taiwan model

Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and/ or other countries.

This product is licensed under the AVC patent portfolio license and VC-1 patent portfolio license for the personal and noncommercial use of a consumer to (i) encode video in compliance with the AVC Standard and VC-1 Standard (“AVC/VC-1 Video”) and/or (ii) decode AVC/VC-1 Video that was encoded by a consumer engaged in a personal and non-commercial activity and/or was obtained from a video provider licensed to provide AVC/VC-1 Video. No license is granted or shall be implied for any other use. Additional information may be obtained from MPEG LA, LLC.

MPEG Layer-3 audio decoding technology licensed from Fraunhofer IIS and Thomson Multimedia.

Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby Laboratories.

DivX, DivX Ultra Certified, and associated logos are trademarks of DivX, Inc. and are used under license.

• DIMENSIONS

Top view

R-840

(15/16")

277 (10-7/8")

309 (12-3/16")

348 (13-3/4")

R-840/NS-BP300

Front view

177 (7")

215 (8-1/2")

102 (4")

(3/8")

Side view

(5/8")

110 (4-3/8")

Unit: mm (inch)

NS-BP300

(7/8")

305 (12")

280 (11")

(1/8")

(3/4")

176

(6-7/8")

(3/4")

310 (12-3/16")

318 (12-1/2")

(5/16")

(1")

Unit: mm (inch)

R-840/NS-BP300

■ INTERNAL VIEW

R-840/NS-BP300

R-840

Top viewTop view

34 512

Front view

98101112

MAIN (8) P.C.B.

MAIN (2) P.C.B.

DAB P.C.B. (A, B models)

DAB MODULE (A, B models) FM TUNER

FUNCTION (1) P.C.B.

MAIN (5) P.C.B.

MAIN (1) P.C.B.

POWER TRANSFORMER

MAIN (7) P.C.B.

MAIN (4) P.C.B.

FUNCTION (2) P.C.B.

MAIN (3) P.C.B.

MAIN (6) P.C.B.

■ DISASSEMBLY PROCEDURES

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

R-840/NS-BP300

1. Removal of Top Cover Unit

a. Remove 4 screws (①) and 4 screws (②). (Fig. 1) b. Lift the top cover unit. (Fig. 1) c. Remove CB108 and CB301. (Fig. 1) d. Remove the top cover unit. (Fig. 1)

Top cover unit

2. Removal of Front Panel Unit

a. Remove 2 screws (③) and 2 screws (④). (Fig. 1) b. Remove 2 screws (⑤) and remove W804-805. (Fig. 1) c. Remove CB53, CB101 and CB109. (Fig. 1) d. Release 2 hooks and remove the front panel unit.

(Fig. 1)

R-840/NS-BP300

Front panel unit

CB108

Hook

W804

W805

CB53

MAIN (5) P.C.B.

CB109

Hook

FUNCTION (1) P.C.B.

CB101

CB301

Fig. 1

R-840/NS-BP300

3. Removal of Amp Unit

a. Remove 2 screws (⑥), 2 screws (⑦), 3 screws (⑧), 3 screws (⑨) and screw (⑩). (Fig. 2) b. Remove CB103, CB403 and CB505. (Fig. 2) c. Remove the amp unit together with the MAIN (1) P.C.B., the FUNCTION (1) P.C.B. and the rear panel. (Fig. 2)

R-840/NS-BP300

Amp unit

CB403

CB103

CB505

MAIN (2) P.C.B.

Rear panel

FUNCTION (1) P.C.B.

MAIN (1) P.C.B.

Fig. 2

When checking the P.C.B.s:

• Spread the rubber sheet and the cloth. Then place the amp unit on the cloth and check it. (Fig. 3)

• Connect the ground point of the rear panel to the chassis with a ground lead or the like. (Fig. 3)

• Reconnect all cables (connectors) that have been disconnected.

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

R-840/NS-BP300

Ground lead

Top cover unit

Rear panel

Amp unit

Chassis

Front panel unit

Rubber sheet and the cloth

Fig. 3

R-840/NS-BP300

■ UPDATING FIRMWARE

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

MAIN P.C.B. Microprocessor (IC101) of FUNCTION P.C.B.

● Required tools

• Firmware downloader program

• Firmware

R-840/NS-BP300

• RS232C cross cable “D-sub 9 pin female”

• RS232C conversion adaptor (Part No.: AAX77610)

....................................................... FlashSta.exe

..................................................... R840_xxx.mot

R840_xxx.id

(Specifications)

Pin No.2 RxD Pin No.2 RxD

Pin No.3 TxD Pin No.3 TxD

Pin No.5 GND Pin No.5 GND

Pin No.7 RTS Pin No.7 RTS

Pin No.8 CTS Pin No.8 CTS

Note: Do not use the RS232C conversion adaptor

(Part No.: WR492800), which is used for updating BD-940/DVD-840/CD-640, otherwise the update will not proceed.

● Preparation and precautions

• Download the firmware downloader program and the latest firmware from the specified source to the same folder of the PC.

• Prepare the above specified RS232C cross cable.

• While writing the firmware, keep the other application software on the PC closed. It is also recommended to keep the software on the task tray closed as well.

● Confirmation of firmware version

Before and after updating the firmware, check the firmware version and checksum by using the self-diagnostic function menu.

Start up the self-diagnostic function. Using the “1-1. Firmware version” / “1-2. Checksum” menu, have the firmware version and checksum displayed, and

note down them. (See “SELF-DIAGNOSTIC FUNCTION”)

1-1. Firmware version

1.VER:100/G

1-2. Checksum

1.SUM:D87E

The firmware version of microprocessor (IC101 of the MAIN P.C.B.) is displayed.

The checksum value of microprocessor (IC101 of the MAIN P.C.B.) is displayed.

R-840/NS-BP300

● Connection

* Disconnect the power cable of this unit from the AC outlet.

1. Set the switch (SW301) of RS232C conversion adaptor to the “FLASH UCOM” position. (Fig. 1)

2. Connect the writing port (CB104 of FUNCTION P.C.B.) located on the rear panel of this unit to the serial port (RS232C) of the PC with RS232C cross cable, RS232C conversion adaptor and flexible flat cable as shown below. (Fig. 3)

Note: Do not use the RS232C conversion adaptor (Part No.: WR492800), which is used for updating BD-940/

DVD-840/CD-640, otherwise the update will not proceed.

This unit

Serial port (RS232C)

RS232C cross cable

RS232C conversion adaptor

SW301 FLASH UCOM

OTHER

Flexible flat cable (9P)

Writing port (FUNCTION P.C.B. CB104)

R-840/NS-BP300

Fig. 1

R-840/NS-BP300

● Operation procedure

1. Connect the power cable of this unit to the AC outlet. The power to this unit is supplied and the microprocessor is in the writing mode.

2. Start up FlashSta.exe. The screen appears as shown below. (Fig. 2)

3. Select the data to be transmitted and port. (Fig. 2)

• Select Program

Select Internal flash memory

• RS232C

Select the port of RS-232C * For selection of the port, COM1 to 4 can be used.

R-840/NS-BP300

As COM5 or higher port cannot be used, select from COM 1 to 4 of the setting on the PC side.

Select Internal flash memory

Select the port of RS-232C

Fig. 2

4. Click [Refer...] and select the firmware name. (Fig. 3)

* The ID and MCU Type are loaded automatically when the file is selected. (Fig. 3) Click [OK]. (Fig. 3)

When [Refer...] is clicked, the “Open” screen appears.

Fig. 3

5. Click [Setting], and set the baud rate. (Fig. 4)

R-840/NS-BP300

Fig. 4

6. Click [E.P.R.], then the “Erase” screen appears. (Fig. 5)

7. Click [OK] to start writing. (Fig. 5)

Select 115200 bps for the baud rate and 40 ms for the program intervals. * Reduce the baud rate if a transmission error

occurs frequently.

R-840/NS-BP300

Fig. 5

Writing being executed.

R-840/NS-BP300

8. When writing of the firmware is completed, the screen appears as shown below. (Fig. 6) Click [OK]. (Fig. 6)

9. Click [Exit] to end FlashSta.exe. (Fig. 6)

Fig. 6

10. Disconnect the power cable of this unit from the AC outlet.

11. Remove the RS232C conversion adaptor and flexible flat cable from the writing port (CB104 of FUNCTION P.C.B.) of this unit.

12. Start up the self-diagnostic function. Using the “1-1. Firmware version” / “1-2. Checksum” menu, have the firmware version and checksum displayed,

and note down them. (See “SELF-DIAGNOSTIC FUNCTION”) * When the firmware version and checksum are different from written ones, perform the “UPDATING FIRMWARE”

again from the beginning.

13. Disconnect the power cable of this unit from the AC outlet.

■ SELF-DIAGNOSTIC FUNCTION

There are 10 main menu items, each of which has sub-menu items. Listed in the table below are main menu items and sub-menu items.

MAIN MENU SUB-MENU

1 VER/DEST/SUM 1 FIRMWARE VERSION / DESTINATION

2 CHECKSUM

3 DAB MODULE VERSION (A, B models)

2 DISPLAY CHECK 1 MENU DISPLAY

2 VFD DISPLAY OFF

3 VFD DISPLAY ALL

4 VFD DIMMER 1 (100 %) / 2 (50 %) / 3 (25 %)

3 FACTORY PRESET 0 PRESET INH / RSRV

4 AD DATA CHECK 1 PS1 PROTECTION

2 PS2 PROTECTION

3 DC PROTECTION

4 THM PROTECTION

5 VOL (VOLUME)

6 BAS (TONE CONTROL: BASS)

7 TBL (TONE CONTROL: TREBLE)

8 BAL (BALANCE L/R)

9 CNT (CENTER)

A KEY

B DST (DESTINATION)

5 PROTECTION HISTORY 0 DISPLAY / RESET

1 HISTORY 1

2 HISTORY 2

3 HISTORY 3

4 HISTORY 4

6 EEPROM CHECK 1 EEPROM CHECK

7 iPod CHECK 1 iPod CONNECTOR CHECK

2 iPod ACCESSORY POWER (DET_IPAP)

3 iPod DETECTION (N_DET_IP)

4 iPod PLAY/PAUSE KEY CHECK

8 AUDIO CHECK 1 AUDIO MUTE ON

2 SP RELAY OFF

3 HP MUTE ON

4 BASS MAX (100Hz +10dB)

5 BASS MIN (100Hz -10dB)

6 TRE MAX (10kHz +10dB)

7 TRE MIN (10kHz -10dB)

9 POWER OFF FACTOR HISTORY 1 LAST

2 HISTORY 1

3 HISTORY 2

4 HISTORY 3

5 HISTORY 4

A SYSTEM CONNECTOR CHECK 1 SYSTEM CONNECTOR LOOP BACK CHECK

2 SYSTEM CONNECTOR POWER LOW / HIGH (for CD-640)

R-840/NS-BP300

● Starting Self-Diagnostic Function

Turn the “BALANCE” knob counterclockwise fully and then while pressing the “PURE DIRECT” key of this unit as shown in the figure below, press the “

The self-diagnostic function mode is activated.

R-840/NS-BP300

“ ” (On/Standby) key “PURE DIRECT” key

” (On/Standby) key to turn on the power.

Keys of this unit

“BALANCE” knob

Display

NOPRT 1.VER:xxx/G

Destination Firmware version

● Starting Self-diagnostic function in the protection cancel mode

If the protection function works and causes hindrance to trouble shoot, cancel the protection function as described below, and it will be possible to enter the self-diagnostic function mode. (The protection functions other than the PRI function will be disabled.)

Turn the “BALANCE” knob counterclockwise fully and then while pressing the “PURE DIRECT” key of this unit as shown in the figure above, press the “ longer. The self-diagnostic function mode is activated with the protection functions disabled.

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

CAUTION!

Using this product with the protection function disabled may cause further damage to itself. Use special care when using this mode.

” (On/Standby) key to turn on the power and keep pressing the “PURE DIRECT” key for 4 seconds or

● Canceling Self-diagnostic function

Before canceling self-diagnostic function, execute setting for FACTORY PRESET of main menu No. 3 (Memory

①

initialization inhibited or Memory initialized). * In order to keep the user memory preserved, be sure to select PRESET INH (Memory initialization inhibited).

②

Press the “

” (On/Standby) key of this unit to turn off the power.

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