Yamaha YST-MS55D Service Manual Download Page 19 | Manualshive

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YST-MS50/YST-MS55D

YST-MS50

YST-MS55D

18

19

■

BLOCK DIAGRAM

Q2

Q3

Q201

JK202

L202

WP

SDA

SCL

VOUTL

VOUTR

XTAL1

XTAL2

SDA

D–

D+

SCL

7

5

6

24

21

V

SS

14

15

7

6

6

7

31

30

V

DD

+B

2

3

2

3

Q8

SW1

POWER

SW2

220V–240V

F1

F2

D2

IC2

GND

IN

+

–

OUT

IC5

GND

IN

OUT

~

R model only

110V–120V

VOLTAGE

SELECTOR

POWER

TRANSFORMER

Regulator

Regulator

(AUTO POWER)

Q1

3

5

VOLUME

VR1

VR2

IR

JK4

INPUT 1

INPUT 2

JK3

OUTPUT

TO RIGHT

SPEAKER

Rch SATELLITE SPEAKER

Lch SATELLITE SPEAKER

IL

3

1

G

4

7

6

JK2

8

2

5

+12

+12

+12

PWS

TO
SUB Wo.

TO LEFT
SPEAKER

USB IN USE ONLY

YST-MS55D

TO RIGHT
SPEAKER

OL

1

7

IC3

(NJM4556AL)

OR

RSP–

RSP+

TWEETER

MIDRENGE

+

+

JK1

JK201

(HEADPHONE)

–

–

TWEETER

MIDRENGE

+

+

–

–

SUBWOOFER

SP+

SP–

E

–12

3

1

G

4

7

6

8

2

5

+12

E

OL

PWS

OR

RSP–

RSP+

JK5

–12

–12

6

4

–12

–12

+12

+12

1

2

H. P. F

12dB/oct

H. P. F

12dB/oct

–12

+12

–6dB/oct

–12

+12

–12dB/oct

EQ Amp

IC1,2

(UPC4570HA)

Mute

Power Amp.

IC6

(STK408-040E)

IC1

IC2

IC2

IC1

7

2

+12

8

4

IC7

A. N. I.C

IC8

IC7,8

(UPC4570HA)

–12

+12

–12

4

8

20

1

18

+12

2

7

–12

7

+12

+3.3V

8

–12

USB

INPUT

XL201

48MHz

EEPROM

IC202

(MC24C02-BN6)

USB D/A Converter

IC201

(UDA1321PS)

4

17

SWI

SRI

SLI

PWS1

RSP+

LSP+

PJ1

TO
SUB Wo.

PJ2

16

12

14

9

8

5

3

2

+B

–B

–B

+B

BASS

Rectifier

Q6

Q7

Q5

Q4

~

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Summary of Contents for YST-MS55D

Page 1: ... 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 of 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 ...

Page 2: ...s 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 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 expos...

Page 3: ...2 YST MS50 YST MS55D YST MS50 YST MS55D Subwoofer Front Panel Subwoofer Rear Panel YST MS55D YST MS55D YST MS55D YST MS55D R model only U and C models U and C models only R model A model B and G models ...

Page 4: ...odel C Canadian model B British model R General model G European model Type Active Servo Technology Advanced Y S T Output Power Satellite 20W 20W 1kHz 4 ohms at T H D 10 Subwoofer 40W 100Hz 5 ohms at T H D 10 Input Sencitivity 200mV 1kHz 4 ohms at 20W Input Impedance 25 kohms Frequency Responce 32 Hz to 20 kHz Crossover Frequency Satellite Tweeter 12 kHz Subwoofer fc 200Hz Headphone Output Level 0...

Page 5: ...f the Satellite Speakers are not available See page 31 and 33 of the PARTS LIST for YST MS50 page 34 and 36 of the PARTS LIST for YST MS55D 2 1 3 L ch R ch Satellite Speaker L ch 1P C B MAIN 8 Satellite Speaker R ch 2P C B MAIN 4 3P C B MAIN 5 Subwoofer 4 8 9 0 A B 5 6 6 7 YST MS50 YST MS55D Subwoofer 4P C B MAIN 6 5P C B MAIN 1 6P C B MAIN 3 7P C B MAIN 9 YST MS55D only 8SPEAKER UNIT Subwoofer 9P...

Page 6: ... 6 locations As a screwdriver for slotted head screw is used for removal use special care not to cause damage to the Cabinet a Using the screwdriver insert in the gaps between the front panel ass y and cabinet push up the front panel ass y b Remove the front panel ass y while taking it out Front panel ass y can not to remove completely 3 Removal of the Speaker a Set up the front panel ass y in the...

Page 7: ...om the personal computer will be output via the USB port 1 Start up Windows 98 on your computer Insert the included YST MS55D device driver CD ROM into the CD ROM drive 2 Connect the YST MS55D speakers using the specified cables and plug them in to the AC outlet At this time do not connect the subwoofer to the personal computer yet 3 Make sure that the POWER switch on the rear panel of the subwoof...

Page 8: ... the USB Composite Device See Fig 1 1 Click Next The system displays the following panel See Fig 2 The system displays the following panel See Fig 3 2 Click Next again to display the following panel 3 Check CD ROM drive and de select other options then click Next to proceed to the fol lowing panel Fig 1 Fig 2 Fig 3 7 YST MS50 YST MS55D YST MS55D ...

Page 9: ...ays the following panel See Fig 4 Note Depending on your system a path other than D USB INF may appear 5 Click Next The system starts installing the YAMAHA YST MS55D USB Composite Device Please wait awhile The system displays the following panel See Fig 6 6 Click Finish to complete the installation of the USB Composite Device Fig 4 Fig 5 Fig 6 8 YST MS50 YST MS55D YST MS55D ...

Page 10: ...peatedly as in steps 2 5 until the following panel appears 8 Click Finish to complete the installation of the Human Interface Device The system displays a panel to begin installing a USB Audio Device See Fig 9 9 Follow the same screen instructions as steps 2 5 Make sure that The updated driver Recom mended panel lists YAMAHA YST MS55D USB Audio in step 4 and click the Next but ton repeatedly until...

Page 11: ...firm that the installed the YST MS55D speaker device driver There are 3 items in the YST MS55D speaker device drivers Befor confirming 1 Make sure that the POWER switch on the rear panel of the subwoofer is turned on 2 Connect the subwoofer to the USB port on the personal computer using the USB cable There are 4 items in the confirmation as shown below The system displays the following panel See F...

Page 12: ...man Interface Devices See Fig 12 Confirmed Fig 12 To next confirmation 11 YST MS50 YST MS55D YST MS55D CONFIRM 3 YAMAHA YST MS55D USB Composite Device Confirm the YAMAHA YST MS55D USB Composite Device See Fig 13 Confirmed Fig 13 To next confirmation ...

Page 13: ...roperties Confirm the Playback Confirm the YAMAHA YST MS55D USB Audio 1 See Fig 14 Confirmed Fig 14 Completed the confirmation of OS 12 YST MS50 YST MS55D YST MS55D CAUTION If not installed the YST MS55D speaker device drivers repeat install from the CD ROM See page 6 10 ...

Page 14: ...the Test Tool PLUG IN DEVICE S TO TEST display Fig 15 Connect the USB cable to the USB port of the personal computer Pulg in the USB cable from Personal to USB INPUT on the rear panel of the Subwoofer See Fig 16 Plug in the USB Cable from the Personal Computer Fig 16 Start the USB port operation check 13 YST MS50 YST MS55D YST MS55D Rear panel of the Subwoofer ...

Page 15: ...s shown below CHECK 1 00Vid 0X0499 Pid 0X3001 USB Compliance Tool Version 2 6 display Confirm the 99 Vid 0X0499 Pid 0X3001 See Fig 17 Confirmation of USB EEPROM IC201 opration is completed Click the Full Test See Fig 17 for next check Confirmed Click Fig 17 14 YST MS50 YST MS55D YST MS55D ...

Page 16: ...CK 2 All is checked USB Chapter 9 Test display Confirm that all is checked See Fig 18 Click the Start Automated Testing See Fig 18 for next check Fig 18 All is checked Click 15 YST MS50 YST MS55D YST MS55D ...

Page 17: ...rror Count 0 Full Test Results display Confirm the Error Count 0 See Fig 19 Operation of between USB IC and USB port is normal state Enter automated to next check Fig 19 Confirmed 16 YST MS50 YST MS55D YST MS55D ...

Page 18: ...ol display Confirm the OK See Fig 20 Enter automated to next check Fig 20 CHECK 5 OK DEVICE IS HID display Confirm the OK See Fig 21 Completed the USB port operation check Fig 21 Confirmed Confirmed 17 YST MS50 YST MS55D YST MS55D ...

Page 19: ...2 8 2 5 12 12 12 PWS TO SUB Wo TO LEFT SPEAKER USB IN USE ONLY YST MS55D TO RIGHT SPEAKER OL 1 7 IC3 NJM4556AL OR RSP RSP TWEETER MIDRENGE JK1 JK201 HEADPHONE TWEETER MIDRENGE SUBWOOFER SP SP E 12 3 1 G 4 7 6 8 2 5 12 E OL PWS OR RSP RSP JK5 12 12 6 4 12 12 12 12 1 2 H P F 12dB oct H P F 12dB oct 12 12 6dB oct 12 12 12dB oct EQ Amp IC1 2 UPC4570HA Mute Power Amp IC6 STK408 040E IC1 IC2 IC2 IC1 7 2...

Page 20: ... RE RE WH WH RE WH GR GR RE BE WH BR WH BE BR BE RE WH BE BL WH P C B MAIN 9 P C B MAIN 3 P C B MAIN 6 Subwoofer P C B MAIN 1 P C B MAIN 2 P C B MAIN 7 YST MS55D R model only J U C A B G only R only 1 G 8 2 5 4 6 7 3 9 1 9 1 20 1 OUT COM IN IN COM OUT UPC4570HA UPC4570HA STK408 040E NJM79M12FA NJM78M12FA 5 8 4 1 1 32 16 17 1 2 4 3 UDA1321PS M24C02 BN6 9 1 UPC4570HA 1 9 UPC4570HA Semiconductor Loca...

Page 21: ...IR IL RE WH BE YE W1 BE YE RE WH SATELLITE MIDRANGE Lch VOLUME TO SUB Wo TO SUB Wo INPUT 2 INPUT 1 SATELLITE MIDRANGE Rch SATELLITE TWEETER Lch SATELLITE TWEETER Rch R L P C B MAIN 8 P C B MAIN 4 Satellite Speakers P C B MAIN 5 AUTO POWER HEADPHONE 6 8 3 4 2 1 7 5 1 8 NJM4556AL Semiconductor Location Ref No IC3 Q1 Q2 Location C1 C1 C1 ...

Page 22: ...ormally unconnected 2 Normally connected to ground 18 Vref 3rd ORDER NOISE SHAPER REFERENCE VOLTAGE VARIABLE HOLD REGISTER LEFT DAC OSC TIMING RIGHT DAC FOR DIGITAL I O FOR DIGITAL CORE FIFO REGISTERS UP SAMPLE FILTER USB PROCESSOR ANALOG FRONT END AUDIO FEATURE PROCESSING DSP SAMPLE FREQUENCY GENERATOR MICRO CONTROLLER DIGITAL I O fs fs 64fs 128fs 7 6 D D 29 27 32 1 2 3 16 15 14 13 24 VDDX XTAL2 ...

Page 23: ... 4 8 B C E 16 1 32 TO LEFT SPEAKER SATELLITE MIDRANGE Lch TO SUB Wo VOLUME SATELLITE TWEETER Lch TO RIGHT SPEAKER POWER VOLTAGE SELECTOR AUTO POWER SATELLITE TWEETER Rch SATELLITE MIDRANGE Rch TO SUB Wo USB INPUT TO RIGHT SPEAKER SUB WOOFER OUTPUT BASS HEAD PHONE USB IN USE ONLY 0 0 0 11 5 1 5 0 0 0 0 0 12 0 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 0 12 0 0 0 0 12 0 12 0 0 0 27 1 11 5 0 2...

Page 24: ...11 5 1 5 0 0 0 0 0 11 7 11 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11 7 11 7 0 0 0 11 7 0 27 1 11 5 0 27 1 11 5 11 5 0 0 2 11 5 0 2 0 0 0 27 1 0 2 0 2 0 1 0 1 24 3 0 1 0 1 25 6 25 5 0 0 27 1 27 1 27 1 0 0 0 0 0 0 0 11 4 11 7 11 4 10 4 11 7 9 9 0 0 0 11 7 0 0 0 11 5 0 0 0 11 7 0 0 0 11 5 27 1 AC43 2 27 1 YST MS50 NJM78M12FA AN78M12F 2SA1015 O Y 2SC1815 Y GR 2SC2878 A B 2SC3792 1SS133 1SR139 4...

Page 25: ...ED 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 RESISTOR R MTL FILM METAL FILM RESISTOR R MTL OXD METAL OXIDE FILM RESISTO...

Page 26: ...V C37 FG211150 C CE 15pF 50V C38 FG211150 C CE 15pF 50V C39 UA655100 C MYLAR 0 1uF 50V C40 VJ837200 C EL 47uF 16V C41 VJ837200 C EL 47uF 16V C42 UM397330 C EL 33uF 16V C43 UA653390 C MYLAR 3900pF 50V C44 UA655180 C MYLAR 0 18uF 50V C45 UA653470 C MYLAR 4700pF 50V C46 VD916400 C EL 2 2uF 50V C47 VD916400 C EL 2 2uF 50V C48 UA654470 C MYLAR 0 047uF 50V C49 UA654470 C MYLAR 0 047uF 50V C50 FG214100 C...

Page 27: ...E869300 R MTL OXD 0 1Ω 2W R60 HV453100 R CAR FP 1Ω 1 4W R61 HV453100 R CAR FP 1Ω 1 4W R70 HU597100 R MTL FLM 10KΩ 1 4W R71 VH007900 R MTL FLM 20KΩ 1 4W R72 HU597100 R MTL FLM 10KΩ 1 4W R74 HU597100 R MTL FLM 10KΩ 1 4W SW1 VS066500 SW PUSH SPPH13 W TE1 VT658100 TERM WRAP 352 TX119 TE2 VT658100 TERM WRAP 352 TX119 VR1 V2261700 VR A50KΩ VR2 VZ496100 VR A5KΩ V2572700 VOLT SELCT R BB070700 GND MTL V340...

Page 28: ... FG211150 C CE 15pF 50V C38 FG211150 C CE 15pF 50V C39 UA655100 C MYLAR 0 1uF 50V C40 VJ837200 C EL 47uF 16V C41 VJ837200 C EL 47uF 16V C42 UM397330 C EL 33uF 16V C43 UA653390 C MYLAR 3900pF 50V C44 UA655180 C MYLAR 0 18uF 50V C45 UA653470 C MYLAR 4700pF 50V C46 VD916400 C EL 2 2uF 50V C47 VD916400 C EL 2 2uF 50V C48 UA654470 C MYLAR 0 047uF 50V C49 UA654470 C MYLAR 0 047uF 50V C50 FG214100 C CE 0...

Page 29: ...2 iC287820 TR 2SC2878 A B Q3 iA101590 TR 2SA1015 O Y Q4 iC1815M0 TR 2SC1815 Y GR Q5 iA101590 TR 2SA1015 O Y Q6 iC1815M0 TR 2SC1815 Y GR Q7 iA101590 TR 2SA1015 O Y Q8 V3028000 FET 2SK304 E Q201 VC407900 TR 2SD1913 R S R37 HV455100 R CAR FP 100Ω 1 4W R38 HV455100 R CAR FP 100Ω 1 4W R39 HV453470 R CAR FP 4 7Ω 1 4W R46 HV453470 R CAR FP 4 7Ω 1 4W R55 HV456100 R CAR FP 1KΩ 1 4W R57 HV454820 R CAR FP 82...

Page 30: ... VIEW YST MS50 YST MS50 Voltage Selector R only 6 R only 5 1 6 4 6 3 5 7 5 6 5 32 5 35 5 31 5 32 R only 5 19 20 5 33 5 34 6 3 1 6 1 6 2 6 11 2 20 6 6 1 8 6 12 6 5 3 5 1 5 11 1 5 1 7 5 1 5 14 5 18 5 5 5 8 301 302 5 17 5 12 5 20 5 21 5 15 5 16 5 15 2 5 1 ...

Page 31: ...39304T UC 5 14 V2574100 SLIDE SWITCH ESD39318S RABG 5 15 V2583100 PACKING A 5 16 V2583200 PACKING B 5 17 VZ653300 PACKING E 5 18 V2583400 PACKING D D 5 19 VZ653400 PACKING F R 5 20 VZ655300 BUSH 5 21 V2586100 INSULATOR 5 31 EN335030 BIND HEAD BONDING TAP SCREW 3x10 FCRM3 BL 5 32 EX601360 BIND HEAD P TITE SCREW 3x10 FCRM3 BL 5 33 ED330086 BIND HEAD SCREW 3x8 FCRM3 BL 5 34 EK396010 BIND HEAD S TITE ...

Page 32: ...3200 PACKING B 5 17 V2583300 PACKING C 5 18 V2583400 PACKING D D 5 19 VZ653400 PACKING F R 5 20 VZ655300 BUSH 5 21 V2586100 INSULATOR 5 22 V4510600 FERRITE CORE HF70RH12X15X7 3 BG 5 23 VZ406100 INSULATOR C BG 5 31 EN335030 BIND HEAD BONDING TAP SCREW 3x10 FCRM3 BL 5 32 EX601360 BIND HEAD P TITE SCREW 3x10 FCRM3 BL 5 33 ED330086 BIND HEAD SCREW 3x8 FCRM3 BL 5 34 EK396010 BIND HEAD S TITE SCREW 4x8 ...

Page 33: ...CABLE 1P 2 0m VS494400 CABLE MINI PLUG VT309500 RCA PIN CABLE 1 8m VZ663800 DIN PLUG CABLE 8P 1 86m VS104300 LEG V4400400 CD ROM 301 V3565300 SATELLITE SPEAKER UNIT R WH 301 V3565700 SATELLITE SPEAKER UNIT R BL 302 V3566100 SATELLITE SPEAKER UNIT L WH 302 V3566500 SATELLITE SPEAKER UNIT L BL YST MS55D ...

Page 34: ...Ω 56 kΩ 62 kΩ 68 kΩ 82 kΩ 91 kΩ 100 kΩ 110 kΩ 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 8330 HJ35 8390 HF45 8470 HJ35 8560 HF45 7100 HF45 7110 HF85 7120 HF45...

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