Yamaha MCR-Nx70 Service Manual Download Page 39 | Manualshive

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MAIN (2)

(Side B)

MAIN (4)

(Side B)

MAIN (5)

(Side B)

MAIN (6)

(Side B)

MAIN (3)

(Side B)

A-U670/A-670

A-U670/A-U671

A-U670/A-U671

A-U671

A

B

C

D

E

F

G

H

I

J

1

2

3

4

5

6

7

A-U670/A-670/A-U671/NS-BP401/NS-BP301

39

• Semiconductor Location

Ref no. Location

D1

H3

D2

H3

D3

H3

D5

E3

D6

E3

D17

E6

D20

G7

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Summary of Contents for MCR-Nx70

Page 1: ...igation to retro t Should any discrepancy appear to exist please contact the distributor s Service Division WARNING Static discharges can destroy expensive components Discharge any static electricity...

Page 2: ...O NOT PLACE SOLDER ELECTRICAL ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER Avoid prolonged unprotected contact between solder and your skin When soldering do not inhale s...

Page 3: ...he A 670 CD NT670 and NS BP401 The MCR N670 consists of the A 670 CD NT670 and NS BP301 A U670 NS BP401 NS BP401 NS BP301 A 670 A 670 MCR N870 MCR N770 MCR N670 CD NT670 CD NT670 CD NT670 SYSTEM COMPO...

Page 4: ...f the A 670 CD NT670D and NS BP401 The MCR N670D consists of the A 670 CD NT670D and NS BP301 MCR N870D MCR N770D MCR N670D A U670 NS BP401 NS BP401 NS BP301 A 670 A 670 A U671 CD NT670D CD NT670D CD...

Page 5: ...FRONT PANELS A U670 K B G L V models A 670 U T K A B G L V models A U671 U T K A B G L J models A U670 A 670 A U671 5 A U670 A 670 A U671 NS BP401 NS BP301 A U670 A 670 A U671 NS BP401 NS BP301...

Page 6: ...G model Label G model Label NS BP401 NS BP301 NS BP301 NS BP401 6 A U670 A 670 A U671 NS BP401 NS BP301 A U670 A 670 A U671 NS BP401 NS BP301...

Page 7: ...REAR PANELS A U670 K model A U670 B G L models A U670 V model A 670 U model A 670 A U670 7 A U670 A 670 A U671 NS BP401 NS BP301 A U670 A 670 A U671 NS BP401 NS BP301...

Page 8: ...A 670 T model A 670 K model A 670 A B G L models A 670 V model 8 A U670 A 670 A U671 NS BP401 NS BP301 A U670 A 670 A U671 NS BP401 NS BP301...

Page 9: ...A U671 U model A U671 T model A U671 K model A U671 A B G L models A U671 9 A U670 A 670 A U671 NS BP401 NS BP301 A U670 A 670 A U671 NS BP401 NS BP301...

Page 10: ...A U671 J model NS BP401 T model G J models Labels T model NS BP401 10 A U670 A 670 A U671 NS BP401 NS BP301 A U670 A 670 A U671 NS BP401 NS BP301...

Page 11: ...NS BP301 T model G J models Labels T model NS BP301 11 A U670 A 670 A U671 NS BP401 NS BP301 A U670 A 670 A U671 NS BP401 NS BP301...

Page 12: ...utput Power 6 ohms 1 kHz 0 9 THD A U670 A U671 60 W 60 W A 670 55 W 55 W Frequency Response 10 Hz to 40 kHz 0 3 dB Residual Noise IHF A Network 230 V Total Harmonic Distortion 1 kHz 30 W 6 ohms 0 05 o...

Page 13: ...cm 1 1 8 soft dome type x 1 Frequency Response NS BP401 50 Hz to 40 kHz 10 dB to 100 kHz 30 dB NS BP301 55 Hz to 40 kHz 10 dB to 100 kHz 30 dB Impedance 6 ohms Nominal Input 60 W Maximum Input NS BP40...

Page 14: ...9 3 8 38 1 1 2 38 1 1 2 55 2 1 8 327 12 7 8 297 11 3 4 57 2 1 4 48 1 7 8 195 7 5 8 300 11 3 4 310 12 1 4 Top view Top view Top view Side view Side view Rear view Rear view Front view NS BP401 A U670 A...

Page 15: ...P C B MAIN 4 P C B A U670 A U671 MAIN 2 P C B VOLUME P C B A U671 MAIN 5 P C B A U670 A 670 MAIN 6 P C B 1 2 3 4 5 6 7 8 1 2 3 4 5 6 8 7 Top view Front view A U670 A 670 A U671 15 A U670 A 670 A U671...

Page 16: ...es 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 dischar...

Page 17: ...671 as a representative here 1 Removal of Top Cover Fig 1 a Remove 2 screws b Remove the top cover 2 Removal of Side Panel L and Side Panel R Fig 1 a Remove 5 screws and 5 screws b Remove the side pan...

Page 18: ...screws and 2 screws Fig 2 b Remove screw A U670 A U671 and 6 screws Fig 3 c Remove the MAIN 1 P C B Fig 2 4 Fig 2 a 4 b CON1 CON3 c 5 MAIN 1 P C B a 2 2 Fig 2 b 1 6 Fig 3 c MAIN 1 P C B Fig 2 Power s...

Page 19: ...n of A U670 A 670 For the details refer to Service Manual of CD NT670 CD NT670D Preparation A U670 A 670 A U670 A 670 To activate the self diagnostic function prepare CD NT670 CD NT670D CD NT670 CD NT...

Page 20: ...the self diagnostic function menu 14 1 Then 14 1 Waiting is displayed 5 Activate the self diagnostic function of A U670 A 670 For the method to activate the self diagnostic function of A U670 A 670 re...

Page 21: ...r Then the Power indictor will turn on 3 While pressing the Power key turn the BASS TREBLE and BALANCE knobs fully counterclockwise 4 Release the Power key Then the Power indicator will flash and the...

Page 22: ...menu The self diagnostic function menu is displayed on the display unit of CD NT670 CD NT670D First the self diagnostic function start up screen appears as shown below Press the Power forward key of A...

Page 23: ...for service Not for service CD NT670 CD NT670D display CD NT670 CD NT670D display CD NT670 CD NT670D display A U D C H K L i n e V o l 6 1 A U D C H K U s b V o l 6 1 6 HISTORY OF PROTECTION P R T E R...

Page 24: ...cated by PCM indicator PCM Example When the firmware version is V4 1906 V4 1906 PCM indicator PCM Version value Lit Off x1 x2 x4 x8 1 2 3 1 2 3 4 5 1 4 5 6 2 4 6 7 1 2 4 7 8 9 1 8 9 PCM indicator DSD...

Page 25: ...URE DIRECT A U671 INPUT 3 A U671 INPUT 1 2 USB VERSION CHECK Value indicated by PCM indicator PCM Example When the firmware version is V1 11 V1 11 PCM indicator PCM Version value Lit Off x1 x2 x4 x8 1...

Page 26: ...INPUT key of A U671 to have it displayed 6 HISTORY OF PROTECTION A U671 PCM A U671 INPUT 6 HISTORY OF PROTECTION Front view A U671 PCM indicator PCM INPUT key INPUT The indicator of A U671 is checked...

Page 27: ...wer Then initialization will be reserved The actual initialization will be execute initialized when the power is turned on the next time When initialization is not needed press the power key to advanc...

Page 28: ...41 PORT 0 2 ch1 ch2 ch3 ch4 ch5 ch6 ch7 WINDOW WATCHDOG TIMER UART0 UART1 CSI00 CSI01 CSI11 CSI20 CSI21 IIC00 IIC01 IIC11 IIC21 IIC20 LINSEL UART2 12 BIT INTERVAL TIMER LOW SPEED ON CHIP OSCILLATOR RE...

Page 29: ...XD0 AUDIO_ON O Audio circuit power ON 16 P16 TI01 TO01 INTP5 RXD0 PWR_ON I POWER ON key External interrupt input 17 P15 PCLBUZ1 _SCK20 SCL20 DAC_N_RST O DAC reset 18 P14 RxD2 SI20 SDA20 I SYS control...

Page 30: ...P40 TOOL0 TOOL0 I O Microprocessor firm writing terminal Flash memory programmer data input output for debugger 40 _RESET N_RST I External reset input 41 P124 XT2 EXCLKS HP_DET I HP insertion detected...

Page 31: ...1 1 4 8 A M A M 1 12 1 12 1 4 8 NJM2904V TS3USB221ARSER BD9328FJ BD9876AEFJ E2 NJM5532M D NJW1194V R1154H001C T1 F R3116N271A TR F R5527K001D TR LOAD RP130Q331D TR F RP170H331B T1 FE TC7SH125FU IR4302...

Page 32: ...M 40TE 17 1SS355VMTE 17 RB051L 40 RF081M2STR TE B E C 2 1 1 GND 2 IN 3 OUT 3 IN COMMON OUT B E C E C B C E B E C B B E C 2SD2704 K 2SA1037K 2SA1770S T AN 2SC2412K 2SC4614S T AN DTA124EUAT106 KRA304 RT...

Page 33: ...4 Microprocessor R5F101GEAFB V0 JK601 AUDIO_ON CON1 DC DC IC802 BD9876AEFJ E2 A U670 U671 Rotary encoder A 670 U670 A U671 A U670 U671 A U670 A U670 A 670 A U671 AC IN PWR_DET 3 3M MODEL XMS_N_RST DAC...

Page 34: ...70 A U671 A U670 A U671 CB801 to MAIN 1 W802 to MAIN 6 W4 CB305 W302B W302A PN302 Lock the wire by the wire clump to MAIN 1 W802 Along this age Along this age 100 mm A U670 A U671 A 670 50 mm CON2 CON...

Page 35: ...U670 A 670 VOLUME A U671 VOLUME A U671 HP jack Make sure the HP jack has been locked in Letter side Letter side A U670 A U671 A U670 A U671 A U670 A U671 A U671 A U670 A 670 A U671 Rear view Detail o...

Page 36: ...miconductor Location PRINTED CIRCUIT BOARDS Note Precaution for handling measuring instrument Since the speaker output of this unit is BTL connected the ground side of the measuring instrument to be c...

Page 37: ...Semiconductor Location Ref no Location D301 B6 D302 B6 D305 C5 D306 E6 D309 B5 D310 F6 D312 F6 D314 G5 D320 G3 D321 G3 D322 F3 D323 F3 D324 C3 D325 C2 D326 G3 D327 G3 D330 B5 D332 G5 D333 G5 D604 C5...

Page 38: ...VOL_AD VOL_B VOL_AD VOL_A 3 3S DGND Remotecontrol sensor A U670 A U671 PURE DIRECT INPUT BASS L R TREBLE BALANCE PHONES HP_DET R L GND VOL_B VOL_AD VOL_A 3 3S DGND 3 3M LED_PWR PWR_ON DGND 3 3M LED_PW...

Page 39: ...e B MAIN 6 Side B MAIN 3 Side B A U670 A 670 A U670 A U671 A U670 A U671 A U671 A B C D E F G H I J 1 2 3 4 5 6 7 A U670 A 670 A U671 NS BP401 NS BP301 39 Semiconductor Location Ref no Location D1 H3...

Page 40: ...UME Side B MAIN 1 W802 5V 5V VRG VRG 3 3S VOL_AD DGND VOL_UP VOL_DN VOLUME 1 4 8 5 A U671 A B C D E F G H I J 1 2 3 4 5 6 7 40 A U670 A 670 A U671 NS BP401 NS BP301 Ref no Location D801 F4 D802 F4 IC8...

Page 41: ...9 K R350 3 9K R355 3 9K R356 3 9K R351 3 9K R361 100 R360 100 R 3 7 5 4 7 K R 3 7 4 4 7 K R396 100 R500 6 8K R394 100 R395 100 R 4 0 4 6 8 K R399 6 8K R401 6 8K R413 180 R414 180 R411 68K IC304 R5F10...

Page 42: ...D TE1 V 8 NJM5532MD D TE1 V 4 IC611 3 2 1 IC610 3 2 1 V 4 NJM5532MD D TE1 V 8 NJM5532MD D TE1 V 8 IC611 5 6 7 IC615 3 2 1 IC610 V 4 L 6 0 8 B L M 2 1 P G 6 0 0 S N 1 D 3 3U C615 0 1 16 3 3 U R 6 1 3 1...

Page 43: ...el B BRITISH J SOUTH EUROPE E V TAIWAN F RUSSIAN P LATIN AMERICA S BRAZIL H THAI RESISTOR REMARKS NO MARK PARTS NAME CARBON CARBON METAL METAL METAL FIRE CEMENT SEMI FILM RESISTOR FILM RESISTOR OXIDE...

Page 44: ...CERAMIC FILTER FLTR COMB COMB FILTER MODULE FLTR LC RF LC FILTER EMI FUSE CHP CHIP FUSE GND MTL GROUND PLATE GND TERM GROUND TERMINAL JUMPER CN JUMPER CONNECTOR JUMPER TST JUMPER TEST POINT L DTCT LIG...

Page 45: ...PP 3300pF 100V J C374 US064102 C CE CHP 0 01uF 50V B C377 WE102101 C PP 2200pF 100V J C379 380 WE102101 C PP 2200pF 100V J C381 US634101 C CE CHP 0 01uF 16V C382 383 WE102101 C PP 2200pF 100V J C384 3...

Page 46: ...P358602 DIODE 1SS352 TE D320 323 ZA147600 DIODE RF081M2STR TE D324 329 ZP358602 DIODE 1SS352 TE D330 331 ZQ873502 D SCHOTTKY RB501VM 40TE 17 D332 333 ZP358602 DIODE 1SS352 TE D601 603 WE674802 VARISTO...

Page 47: ...R CHP 16K 1 16W J R353 RD357272 R CHP 27K 1 16W J R354 RD357101 R CHP 10K 1 16W J R355 356 RF356392 R MTL CHP 3 9K 1 16W D R357 RD356561 R CHP 5 6K 1 16W J R358 RD354331 R CHP 33 1 16W J R359 RD35810...

Page 48: ...1 16W J R608 RD357101 R CHP 10K 1 16W J R609 RD356102 R CHP 1K 1 16W J R610 RD459102 R CHP 1M 1 16W J R611 RD458102 R CHP 100K 1 16W R612 RD358101 R CHP 100K 1 16W J R615 RD458102 R CHP 100K 1 16W R6...

Page 49: ...HP 0 1uF 16V B C333 334 VE326002 C MYLAR 0 1uF 50V C335 336 UR266471 C EL 4 7uF 50V C337 338 US035101 C CE CHP 0 1uF 16V B C339 US062332 C CE CHP 330pF 50V B C340 US035101 C CE CHP 0 1uF 16V B C341 34...

Page 50: ...100 C MYLAR 1000pF 63V C829 WS661201 C CE M CHP 4 7uF 10V D1 ZP358602 DIODE 1SS352 TE D2 WC413301 DIODE ZENR RSB6 8S 6 8V D3 ZP358602 DIODE 1SS352 TE D4 WA467801 LED SEL6910A CD D5 6 ZP358602 DIODE 1S...

Page 51: ...J R364 RD358101 R CHP 100K 1 16W J R365 RD356102 R CHP 1K 1 16W J R366 RF457333 R CHP 33K 1 16W F R368 RD356471 R CHP 4 7K 1 16W J R369 RD358101 R CHP 100K 1 16W J R370 371 RD354331 R CHP 33 1 16W J...

Page 52: ...K 1 16W J R490 RD354331 R CHP 33 1 16W J R491 494 RD356102 R CHP 1K 1 16W J R495 RD357101 R CHP 10K 1 16W J R496 RF457681 R CHP 68K 1 16W F R497 RD359102 R CHP 1M 1 16W J R498 RF457681 R CHP 68K 1 16W...

Page 53: ...38101 C EL 100uF 16V A U671 C327 328 UR238101 C EL 100uF 16V A U671 C329 UU247101 C EL 10uF 25V A U671 C330 331 WE102301 C PP 3300pF 100V J A U671 C332 US035101 C CE CHP 0 1uF 16V B A U671 C333 334 VE...

Page 54: ...US046102 C CE CHP 1uF 25V A U671 C425 426 VZ420802 C CE M CHP 0 1uF 100V A U671 C427 428 US062101 C CE CHP 100pF 50V B A U671 C429 430 US061101 C CE CHP 10pF 50V B A U671 C431 ZG844402 C CE M CHP 10u...

Page 55: ...LAR 270pF 100V A U671 C657 659 US064102 C CE CHP 0 01uF 50V B A U671 C660 661 ZK673100 C MYLAR 270pF 100V A U671 C663 664 UR237101 C EL 10uF 16V A U671 C665 666 US064102 C CE CHP 0 01uF 50V B A U671 C...

Page 56: ...127A01 IC NJM5532M D A U671 IC803 YE234A01 IC TS3USB221ARSER A U671 J601 603 RD350002 R CHP 0 1 16W J A U671 J606 RD450003 R CHP 0 1 16W J A U671 J607 RD350002 R CHP 0 1 16W J A U671 JK1 ZS296400 JACK...

Page 57: ...1 16W J A U671 R316 317 RF458101 R CHP 100K 1 16W F A U671 R318 RD358101 R CHP 100K 1 16W J A U671 R319 320 RD357101 R CHP 10K 1 16W J A U671 R321 RD356102 R CHP 1K 1 16W J A U671 R322 323 RD354222 R...

Page 58: ...R392 RD359102 R CHP 1M 1 16W J A U671 R393 RD356102 R CHP 1K 1 16W J A U671 R394 396 RF355102 R MTL CHP 100 1 16W D A U671 R397 RD357101 R CHP 10K 1 16W J A U671 R398 RD358101 R CHP 100K 1 16W J A U67...

Page 59: ...P 47K 1 16W F A U671 R470 RD357471 R CHP 47K 1 16W J A U671 R471 472 WZ678100 R MTL OXD 22 1 4W A U671 R473 RD358101 R CHP 100K 1 16W J A U671 R474 VK641801 R CHP 100 1 2W A U671 R475 RD357101 R CHP 1...

Page 60: ...6W D A U671 R666 669 RF355222 R MTL CHP 220 1 16W D A U671 R670 RF356392 R MTL CHP 3 9K 1 16W D A U671 R671 672 RF354102 R MTL CHP 10 1 16W D A U671 R673 675 RD353223 R CHP 2 2 1 16W J A U671 R678 679...

Page 61: ...CHP 0 1uF 16V B A U671 D801 802 WW783901 DIODE 1SS355VM A U671 IC801 YD292A01 IC BH6578FVM TR A U671 R801 RD354471 R CHP 47 1 16W J A U671 R802 RD357621 R CHP 62K 1 16W J A U671 R803 804 RD357101 R C...

Page 62: ...3 3 HJ35 3330 HF85 3330 4 7 HJ35 3470 HF85 3470 5 6 HJ35 3560 HF85 3560 10 HF45 4100 HF45 4100 15 HJ35 4150 HF85 4150 22 HF45 4220 HF45 4220 27 HJ35 4270 HF85 4270 33 HF45 4330 HF45 4330 39 HJ35 4470...

Page 63: ...5 2 5 6 1 2 3 2 6 2 4 2 2 36 36 37 57 65 57 53 53 52 52 31 32 32 55 55 55 53 66 53 21 55 54 53 53 53 23 40 54 54 55 54 38 55 55 30 1 20 1 20 1 20 1 51 1 51 1 14 1 11 1 51 1 42 1 51 1 20 1 21 56 53 65...

Page 64: ...SI A U671 1 11 ZR701100 FRONT PANEL BL A U670 1 11 ZR700900 FRONT PANEL BL A 670 1 11 ZR802800 FRONT PANEL BL A U671 1 14 ZR805000 SUB PANEL SI A U670 1 14 ZR703800 SUB PANEL SI A 670 1 14 ZS030700 S...

Page 65: ...2 5cm 6 JA 05K7 7 WQ486800 TERMINAL RED L30 S85J BANANA D3 8mm CABLE D5mm 8 WQ487100 TERMINAL BLACK L30 S85J BANANA D3 8mm CABLE D5mm 21 V7275700 HEX SOCKET HEAD TAPPING SCREW 4x20 MFNI33 ACCESSORIES...

Page 66: ...YH355A00 DRIVER TWEETER 2 5cm 6 JA 05K7 5 YH356A00 DRIVER WOOFER 13cm 6 JA 13B3 21 V7275700 HEX SOCKET HEAD TAPPING SCREW 4x20 MFNI33 22 WE963200 FLAT HEAD WOOD SCREW 3 5x20 MFZN2B3 ACCESSORIES 202 WQ...

Page 67: ...5 7 6 Key No Key Name Customer Code Data Code 1 Power 7887 0FF0 2 PURE DIRECT 7887 50AF 3 LINE 7887 2AD5 4 USB 7887 29D6 5 VOL 7887 1EE1 6 MUTE 7887 9C63 7 VOL 7887 1FE0 1 2 3 4 5 6 7 A U671 A B C D...

Page 68: ...MEMO 69 A U670 A 670 A U671 NS BP401 NS BP301 A U670 A 670 A U671 NS BP401 NS BP301...

Page 69: ...A U670 A 670 A U671 NS BP401 NS BP301...

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