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SERVICE MANUAL

This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.

WARNING:

Failure to follow appropriate service and safety procedures when servicing this product  may result in personal
injury, destruction of expensive components, and failure of the  product to perform as specified. For these reasons,
we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA
Retailer or the appointed service representative.

IMPORTANT:

The presentation or sale of this manual to any individual or firm does not constitute authorization,  certification  or
recognition  of  any  applicable  technical  capabilities,  or establish a principle-agent relationship of any form.

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover.  The research, engineering, and service
departments of YAMAHA are continually striving  to improve YAMAHA products. Modifications are, therefore, inevitable and
specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the
distributor's Service Division.

WARNING:

Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).

IMPORTANT:

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

IMPORTANT NOTICE

1 0 0 8 8 0

SERVICE MANUAL

NS-P240/NS-P246

HOME THEATER SOUND SPEAKER SYSTEM

NS-P240/NS-P246 is composed of NX-S120, NX-C120 and SW-P240.

NS-P240/NS-P246は、NX-S120・NX-C120・SW-P240で構成されています。

SW-P240 BLOCK DIAGRAM  . . . . . . . . . . . . . . . . . . . 8
SW-P240 PRINTED CIRCUIT BOARD  . . . . . . . . . . . . 9
SW-P240 SCHEMATIC DIAGRAM  . . . . . . . . . . . . . . 10
PARTS LIST  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11–15

■ 

CONTENTS

TO SERVICE PERSONNEL  . . . . . . . . . . . . . . . . . . . . 2
FRONT PANELS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
REAR PANELS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
SPECIFICATIONS / 

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

4–6

SW-P240 INTERNAL VIEW  . . . . . . . . . . . . . . . . . . . . 6
SW-P240 DISASSEMBLY PROCEDURES /

SW-P240分解手順  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

NS-P240

NS-P246

Содержание NS-P240

Страница 1: ...pplicable to the unit s indicated on the cover The research engineering and service departments of YAMAHA are continually striving to improve YAMAHA products Modifications are therefore inevitable and specifications are subject to change without notice or obligation to retrofit Should any discrepancy appear to exist please contact the distributor s Service Division WARNING Static discharges can de...

Страница 2: ... with the AC plug in both polarities WARNING CHEMICAL CONTENT NOTICE The solder used in the production of this product contains LEAD In addition other electrical electronic and or plastic where applicable components may also contain traces of chemicals found by the California Health and Welfare Agency and possibly other entities to cause cancer and or birth defects or other reproductive harm DO NO...

Страница 3: ...NS P240 NS P246 NS P240 NS P246 3 REAR PANELS SW P240 U C models SW P240 T model SW P240 R L models KTL SU09109 SW P240 K model SW P240 B G models SW P240 A model ...

Страница 4: ...応スピーカースタンド SPS 80 Appropriate Speaker Bracket 適応ブラケット SPM 8S NX C120 Type 型式 Full Range Acoustic Suspension Magnetic Shielding Type Driver スピーカーユニット 5 cm 2 Cone Magnetic Shielding Type x 2 Frequency Response 再生周波数帯域 100 Hz to 25 kHz Impedance インピーダンス 6 ohms Nominal Input 許容入力 30 W Maximum Input 最大入力 100 W Sensitivity 出力音圧レベル 86 dB 2 83 V m Input Terminal 入力端子 Push Type Dimensions W x H x D 寸法 幅 高さ...

Страница 5: ...ls AC 110 120 220 240 V 50 60 Hz A model AC 240 V 50 Hz B G models AC 230 V 50 Hz J model AC 100 V 50 60 Hz Power Consumption 消費電力 U C A B G R T K L models 40 W J model 25 W Dimensions W x H x D 寸法 幅 高さ 奥行き 200 mm x 365 mm x 390 mm 7 7 8 x 14 7 20 x 15 5 16 Weight 質量 8 4 kg 18 lbs 8 oz Finish 仕上げ Silver color U C R T K A B G L J models Black color U C R A G models Accessories 付属品 NS P240 Subwoofer...

Страница 6: ...40 INTERNAL VIEW w q r e q MAIN 2 P C B w MAIN 1 P C B e MAIN 3 P C B r POWER TRANSFORMER Unit mm inch 300 11 13 16 105 4 1 8 72 2 13 16 72 2 13 16 108 4 1 4 170 6 11 16 NX S120 NX C120 200 7 7 8 390 15 5 16 365 14 3 8 DIMENSIONS 寸法図 SW P240 ...

Страница 7: ... dowels are fitted into dowel holes only 2 Removal of Rear Panel Remove 14 screws q in Fig 2 Arrow marks are printed to identify the screws to be removed When assembling the Rear Panel check to ensure that the packing is not damaged so as to prevent air leakage from occurring SW P240 DISASSEMBLY PROCEDURES SW P240分解手順 Remove parts in disassembly order as numbered 番号順に部品を取り外してださい 1 フロントグリルの外し方 フロント...

Страница 8: ...B IC7A VR1 VOLUME L P F 6dB oct H P F 12dB oct L P F 12dB oct 6 5 7 5 7 IC7B IC4 IC3 A N I C LIMITER RY1 3 1 2 IC2 Q9 D14 15 16 Q3 4 5 8 D9 10 11 12 1 10 B B 9 8 0 1 PROTECTION 12 B B 12 REGULATOR POWER SUPPLY D3 Q1 D6 Q2 D7 F2 POWER SW2 SPEAKER INPUT POWER AMP ...

Страница 9: ... 5 6 NS P240 NS P246 9 SW P240 PRINTED CIRCUIT BOARD INPUT VOLUME POWER POWER CABLE WH RE SPEAKER P C B MAIN 1 P C B MAIN 2 P C B MAIN 3 R T K L models U C A B G J models SW1 R T K L AC110 220V AC220 240V BE BE WH WH SW P240 ...

Страница 10: ... TR5 R3 R6 TR4 SUB R2 TR1 TR2 TR6 TR7 TR8 IC3 TA7317P Protector 1 6 2 3 8 7 4 9 Muting circuit Constant voltage power supply circuit Schmidt circuit Power supply ON OFF detecting circuit Discharging circuit 5 Substrate Overcurrent detecting circuit OR circuit Current voltage detecting circuit GND Relay drive circuit All voltages are measured with a 10MΩ V DC electronic volt meter Components having...

Страница 11: ...TECTING MODULE L EMIT LIGHT EMITTING MODULE LED DSPLY LED DISPLAY LED INFRD LED INFRARED MODUL RF MODULATOR RF PHOT CPL PHOTO COUPLER PHOT INTR PHOTO INTERRUPTER PHOT RFLCT PHOTO REFLECTOR PIN TEST PIN TEST POINT PLST RIVET PLASTIC RIVET R ARRAY RESISTOR ARRAY R CAR CARBON RESISTOR R CAR CHP CHIP RESISTOR R CAR FP FLAME PROOF CARBON RESISTOR R FUS FUSABLE RESISTOR R MTL CHP CHIP METAL FILM RESISTO...

Страница 12: ...EL 100uF 16V 353103 ケミコン 01 C17 UR867220 C EL 22uF 50V 356201 ケミコン 01 C18 UR867220 C EL 22uF 50V 356201 ケミコン 01 C19 UA655820 C POL 0 82uF 50V 352307 ポリエステルフィルムコン 01 C20 UR867220 C EL 22uF 50V 356201 ケミコン 01 C21 UR867220 C EL 22uF 50V 356201 ケミコン 01 C22 UR828220 C EL 220uF 10V 339076 ケミコン 01 C23 UR865470 C EL 0 47uF 50V 358226 ケミコン 01 C24 UR838100 C EL 100uF 16V 353103 ケミコン 01 C25 UR867220 C EL 22u...

Страница 13: ...470 HF85 8560 HF85 8680 HF85 8820 HF45 9100 HF85 9150 HF85 9180 HF85 9220 HF85 9330 HF85 9470 1 4W Type Part No HF45 7100 HF45 7110 HJ35 7120 HF45 7130 HF45 7150 HF45 7180 HF45 7220 HF45 7240 HJ35 7270 HF45 7300 HF45 7330 HF45 7360 HF45 7390 HF45 7470 HF45 7510 HF45 7560 HF45 7620 HF45 7680 HF45 7820 HF45 7910 HF45 8100 HF45 8110 HF45 8120 HF45 8150 HF45 8180 HJ35 8220 HF45 8270 HF45 8300 HF45 833...

Страница 14: ...6 18 11 9 23 24 21 22 25 22 8 18 19 19 6 20 R T K L only 23 R T K L only 13 14 14 2 1 6 2 6 10 25 3 NS P240 x 2 204 NS P246 x 3 10 pcs set x 2 8 pcs set x 2 x 3 NS P240 x 4 NS P246 x 5 NS P240 x 4 NS P246 x 5 x 2 NX S120 NX C120 requires replacement as a unit Individual replacement parts will not be supplied NX S120 と NX C120はユニット交換です 4m 15m ...

Страница 15: ...20 AAX13660 CUSHION SWITCH 084851 RTKL クッション SW 21 AAX12120 BIND HEAD TAPPING SCREW 4x20 MFZN2BL 021385 バインドTPネジ 01 22 EP600190 BIND HEAD B TIGHT SCREW 3x8 MFZN2BL バインドBタイトネジ 01 23 EP600140 BIND HEAD B TIGHT SCREW 3x10 MFZN2BL バインドBタイトネジ 01 24 EG340190 BIND HEAD B TIGHT SCREW 4x8 MFZN2BL バインドBタイトネジ 01 25 EK395050 BIND HEAD B TIGHT SCREW 3x12 MFZN2BL JUCABG バインドBタイトネジ 01 26 AAX51590 SEMS BIND HEAD ...

Страница 16: ...NS P240 NS P246 16 MEMO NS P240 NS P246 ...

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