Yamaha NX-E440, Service Manual

Page 1: ...NT 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...

Page 2: ...roductive harm DO NOT PLACE SOLDER ELECTRICAL ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA SON 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 Leakag...

Page 3: ... color C R K A B G L models SW P440 Type Advanced Yamaha Active Servo Technology II Output Power 50 W 100 Hz 5 ohms 10 T H D Dynamic Power 100 W 5 ohms Input Impedance INPUT PJ 12 k ohms Frequency Response 30 Hz to 180 Hz Driver 16cm 6 5 16 Cone Woofer Magnetic Shielding Type Input Section INPUT RCA Pin Jack Operation Section Power Switch Volume Control LED indicator QD Bass Technology QD Bass Qua...

Page 4: ...6 SW P440 NS E440 NS C440 99 3 7 8 285 11 3 16 110 4 5 16 129 7 5 1 8 1 4 1 16 18 3 3 4 60 2 3 8 60 2 3 8 A screw with a diameter of 6 mm 7 32 can be used Hole depth 15 mm 19 32 DIMENSIONS 1 2 3 4 6 7 5 MAIN 3 P C B MAIN 1 P C B MAIN 5 P C B MAIN 9 P C B R L models MAIN 2 P C B Power Transformer MAIN 7 P C B U C K A B G models MAIN 10 P C B R L models 1 2 3 4 5 6 7 Unit mm inch ...

Page 5: ...NS P440 NS P446 5 NS P440 NS P446 SW P440 A model REAR PANELS SW P440 R model SW P440 U C models Power Indicator Power Indicator Power Indicator SW P440 K model Power Indicator ...

Page 6: ...NS P440 NS P446 6 NS P440 NS P446 SW P440 B G models SW P440 L model Power Indicator Power Indicator B G models U C R K A L models B G models U C R K A L models NX E440 NX C440 ...

Page 7: ... of Driver a Remove 4 screws 1 and then remove the Base Fig 1 b Remove 4 screws 2 and then remove the Driver Fig 1 c Disconnect the connector connected to the terminal of the Driver Fig 1 When Checking the P C B Connect all the connectors removed during disassembly back to the original positions Spread the Rubber Sheet and Cloth for insulation purpose and place the Rear Panel Ass y on them Fig 3 F...

Page 8: ... IC4A IC4B IC5A IC5B IC1 2 3 L P F 6dB oct L P F 12dB oct H P F 12dB oct DRIVER INPUT PJ1 POWER AMP RY1 PROTECTION POWER SUPPLY D1 F1 T1 POWER SW5 4 8 2 2 6 1 9 8 10 B B B B IC6 Q5 6 D4 5 22 23 Q17 20 D7 25 R28 0 1 15 15 Q9 D2 REGULATOR Q10 D3 A N I C LIMITER ...

Page 9: ...E BE WH BE WH BE WH U C K A B G models R L models R L models VOLTAGE SELECTOR RE RE RE RE BL RE RE BL BL WH SP SP RE Ref no Location D1 J2 D2 H4 D3 I4 D4 H2 D5 H2 D6 G2 D7 F2 D8 B3 D22 G2 D23 G2 Semiconductor Location Ref no Location D24 J3 D25 F3 D28 I3 D29 I3 IC1 H1 IC4 B3 IC5 B2 IC6 G3 Q1 F3 Q2 F3 Ref no Location Q5 G3 Q6 G3 Q9 H4 Q10 H4 Q17 F3 Q18 F3 Q19 F3 Q20 F3 1 9 1 1 9 1 9 10 V 15 15 E MA...

Page 10: ...ODES AND ICS 2SB1642 2SD2531 1SR139 400 1SS133 176 MTZJ15C MTZJ24B MTZJ5 6B 2SA970 2SC2240 2SC2878 µPC4570HA A Anode Cathode E C B B C E D3SBA20 IC4 6 µPC4570HA A Dual OP Amp Vcc Vo1 Vm1 Vm1 VEE Vm2 Vm2 Vo2 Vcc 1 2 3 4 5 6 7 8 9 1 2 0 0 0 0 0 0 0 1 9 0 0 0 0 0 0 14 5 14 5 14 6 14 6 0 2 0 2 0 34 9 14 5 1 1 1 7 35 2 35 1 35 0 35 0 8 1 35 1 0 0 0 14 5 23 6 0 8 0 7 1 3 0 2 0 2 0 2 0 2 0 0 2 0 2 0 0 0 ...

Page 11: ...MPER TST JUMPER TEST POINT L DTCT LIGHT DETECTING 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 ...

Page 12: ... C CE 0 01uF 50V s D1 VN011300 DIODE BRG D3SBA20 4A 200V s D2 VG440900 DIODE ZENR MTZJ15C 15V s D3 VG440900 DIODE ZENR MTZJ15C 15V D4 VD631600 DIODE 1SS133 176 D5 VD631600 DIODE 1SS133 176 SW P440 P C B MAIN SW P440 P C B MAIN D6 VD631600 DIODE 1SS133 176 D7 VG442500 DIODE ZENR MTZJ24B 24V D8 WG613900 LED 333GD T5 GREEN D22 23 VD631600 DIODE 1SS133 176 D24 VU264100 DIODE 1SR139 400 D25 VD631600 DI...

Page 13: ... 6W Type Part No 1 0 Ω HJ35 3100 HF85 3100 1 8 Ω HJ35 3180 2 2 Ω HJ35 3220 HF85 3220 3 3 Ω HJ35 3330 HF85 3330 4 7 Ω HJ35 3470 HF85 3470 5 6 Ω HJ35 3560 HF85 3560 10 Ω HF45 4100 HF45 4100 15 Ω HJ35 4150 HF85 4150 22 Ω HF45 4220 HF45 4220 27 Ω HJ35 4270 HF85 4270 33 Ω HF45 4330 HF45 4330 39 Ω HJ35 4470 HF85 4390 47 Ω HF45 4470 HF45 4470 56 Ω HF45 4560 HF45 4560 68 Ω HF45 4680 HF45 4680 75 Ω HF45 47...

Page 14: ...7 4 1 10 4 1 1 4 1 2 4 1 5 4 1 3 4 2 4 3 4 4 4 5 4 6 4 7 4 7 4 8 4 11 4 11 4 19 4 19 4 23 4 24 4 25 4 26 4 31 4 32 4 32 4 32 4 33 4 34 4 34 4 35 4 36 4 36 4 37 21 21 23 23 200 202 203 204 205 206 207 208 201 20 20 4 34 U C K A B G models R L models for NS P446 for SW P440 for SW P440 for NX C440 ...

Page 15: ...A 4 11 WG538300 REAR PANEL BG 4 19 WA201400 PACKING 20140 4 23 WE252900 COVER P SW 4 24 WE279500 PACKING P SW 4 25 WA217100 POWER KNOB 4 26 WD562900 VOLUME KNOB 4 31 WE994800 BIND HEAD S TIGHT SCREW 4x8 MFZN2B3 4 32 WE774400 BIND HEAD B TIGHT SCREW 3x8 MFZN2B3 4 33 WE774600 SCREW IC 3x18 MFZN2W3 4 34 WF268000 BIND HEAD P TIGHT SCREW 3x10 MFZN2B3 4 35 VT669300 PW HEAD B TIGHT SCREW 3x8 8 MFC2 4 36 ...

Page 16: ...A B C D E 1 2 3 4 5 6 7 NS P440 NS P446 16 NX E440 EXPLODED VIEW 1 2 1 2 4 3 4 5 6 9 10 15 15 15 16 17 ...

Page 17: ...RIVER WOOFER 8cm 6Ω JA0898 5 WG474500 FRONT PANEL NX E440LC SI 5 WG474600 FRONT PANEL NX E440BL 6 WG627300 FRONT GRILLE ASS Y NX E440LC SI 6 WG627400 FRONT GRILLE ASS Y NX E440BL 9 V5361200 BRACKET 1pc 10 VY893800 INSULATOR 15x15 t4 1pc 15 WE971500 BIND HEAD TP SCREW 1 3 5x20 MFZN2W3 NX E440LC SI 15 WE971600 BIND HEAD TP SCREW 1 3 5x20 MFZN2B3 NX E440BL 16 WF822200 SPECIAL SCREW 6SOCK 3 5x20 MFNI3...

Page 18: ...A B C D E 1 2 3 4 5 6 7 NS P440 NS P446 18 NX C440 EXPLODED VIEW 1 2 1 2 4 3 4 4 5 6 15 15 15 15 16 ...

Page 19: ...RIVER TWEETER 2 5cm 6Ω JA05G4 NX C440BL 4 X7435A00 DRIVER WOOFER 7cm 12Ω JA0769 5 WG474700 FRONT PANEL NX C440LC SI 5 WG474800 FRONT PANEL NX C440BL 6 WG627500 FRONT GRILLE ASS Y NX C440LC SI 6 WG627600 FRONT GRILLE ASS Y NX C440BL 15 WE971500 BIND HEAD TP SCREW 1 3 5x20 MFZN2W3 NX C440LC SI 15 WE971600 BIND HEAD TP SCREW 1 3 5x20 MFZN2B3 NX C440BL 16 WF435600 SPECIAL SCREW 6SOCK 4x20 MFZN2B3 NX C...

Page 20: ...NS P440 NS P446 ...