Yamaha YST-SW320 Manuel d'utilisateur télécharger pdf

YST-SW320

SERVICE MANUAL

■ CONTENTS

TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . . . 1

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

REAR PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . . 3–4

ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–6

PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . . . 7–12

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . 14

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15–22

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

100720

SERVICE MANUAL

YST-SW320

SUBWOOFER SYSTEM

1 2 3 4 5 6 ... 22 23

Résumé du contenu

Page 1 - YST-SW320

YST-SW320YST-SW320SERVICE MANUAL CONTENTSTO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . . . 1SPECIFICATIONS . . . . . . . . . . . . . . .

Page 2 - ■ SPECIFICATIONS

ABCDE1234567YST-SW320 PRINTED CIRCUIT BOARD (Foil side)98911MAIN ( 3 ) P. C. B. MAIN ( 7 ) P. C. B. FROM : MAIN (2)+V1PWSEEVCCVCCFROM : MAIN (4)SWLSW

Page 3 - ■ REAR PANEL

ABCDE1234567YST-SW320 PRINTED CIRCUIT BOARD (Foil side)108191MAIN ( 3 ) P. C. B. MAIN ( 7 ) P. C. B. ORW12BE W9WH W8GYW13TO : MAIN

Page 4 - ■ DISASSEMBLY PROCEDURES

ABCDE1234567YST-SW3209118BASS PHASE AUTOSTANDBYINPUT2RL+ –– +OUTPUTINPUT 1MA2LIM–12+12TOVLEMA1TO : MAIN (2)#1W1SWLSWH2SWH1SOTO : MAIN (3)#4W4MAIN ( 4

Page 5

ABCDE1234567YST-SW320W7W6W5W14W15W16FROM : POWER TRANSFORMERREBLREBEBLBETO : MAIN (2)TO : MAIN (1)MAIN ( 6 ) P. C. B. W12W13ORGYTO : MAIN

Page 6 - ■ ADJUSTMENTS

ABCDE1234567YST-SW320IC11AIC11BIC7AAUTO STANDBYSW3AUTO POWER ON/OFF CIRCUITVR3VOLUMEL.P.F.6dB/octB.P.FQ33—36L.P.F.12dB/oct3615768IC7BIC3Q22, 2342D8D17

Page 7 - ● Test Points

ABCDEFGH123456IJK78YST-SW320 SCHEMATIC DIAGRAMVO12–Vm13+Vm14VEE5+Vm26–Vm27VO28VCC9VCC11–+–+2IC1, 4, 7—9 : µPC4570HADual OP-AmpIC5 : M51848LCR Timer*

Page 8 - MAIN ( 1 ) P. C. B

YST-SW320YST-SW32015ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS :C.A.EL.CHP : CHIP ALUMI. ELECTROLYTIC CAPC.CE : CERAMIC CAPC.CE.ARRAY : CERAMIC CAP ARR

Page 9 - MAIN ( 2 ) P. C. B

YST-SW320YST-SW320SchmRef. PART NO. DescriptionNew Parts*SchmRef. PART NO. DescriptionNew Parts*16P.C.B. MAIN* V5057600 P.C.B. MAIN(UC)* V5057700 P.C.

Page 10 - ● R, T models

YST-SW320YST-SW320SchmRef. PART NO. DescriptionNew Parts*SchmRef. PART NO. DescriptionNew Parts*17P.C.B. MAIND5 iF004600 DIODE 1SS133D6 iF004600 DIODE

Page 11 - ● U, C, A, B, G models

YST-SW320YST-SW320SchmRef. PART NO. DescriptionNew Parts*SchmRef. PART NO. DescriptionNew Parts*18P.C.B. MAINR45 HV456120 R.CAR.FP 1.2KΩ 1/4W* R46 V60

Page 12 - MAIN ( 5 ) P. C. B

YST-SW320YST-SW320 TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked Zand must be replaced w

Page 13 - MAIN ( 8 ) P. C. B

ABCDE1234567YST-SW320 EXPLODED VIEW19343434134213232322633335-1-15-1-115-1-15-1-15-1-15-1-15-1-15-1-45-1-85-1-125-1-65-1-125-1-135-1-55-1-75-94-14-64

Page 14

YST-SW320YST-SW320 MECHANICAL PARTS20Ref.No. PART NO. Description Remarks MarketsNew Parts** 1 V6182200 CABINET ASS’YCH* 1 V5866400 CABINET ASS’YBL*

Page 15 - ■ SCHEMATIC DIAGRAM

YST-SW320YST-SW320Ref.No. PART NO. Description Remarks MarketsNew Parts*215-33 EX601360 BIND HEAD P-TITE SCREW 3x10 FCRM3-BL5-34 VT669300 PW HEAD

Page 16 - PARTS LIST

Parts List for Carbon Resistors1/6W Type Part No.HF45 7100HF45 7110HF85 7120HF45 7130HF45 7150HF45 7180HF45 7220HF45 7240HF85 7270HF45 7300HF45 7330HF

Page 17

YST-SW320YST-SW320 REAR PANEL▼ U, C models ▼ A model▼ B, G models▼ R model ▼ T model2R, T models only

Page 18

YST-SW320YST-SW320 DISASSEMBLY PROCEDURES(Remove parts in the order as numbered.)1. Removal of Front Panel Ass'yRemove 4 screws ( q ) and then r

Page 19

YST-SW320YST-SW320Glue ListPlace NameCord stopper5 minute epoxy or2051(Revertex Finewaters SDN.BHD.) orVYLOK 917DH (National Starch &Chemical (M)

Page 20 - EXPLODED VIEW

YST-SW320YST-SW3205 ADJUSTMENTS● Idling AdjustmentTo stabilize operation of the amplifier, turn ON thepower with no input signal and wait for 1 or 2

Page 21 - MECHANICAL PARTS

YST-SW320YST-SW3206IDLING CURRENT ADJ.DC 50mV to 250mVABREWHMain (1) P.C.BDC 50mV to 250mVTP11 (+)TP12 (-)VR1D30D29Point APoint B● Schematic Diagram●

Page 22

ABCDE1234567YST-SW320 PRINTED CIRCUIT BOARD (Foil side)781FROM : MAIN (2)REWHW19W20TO : SPEAKER+V1AYSTDR–OUTDR+–B1E+B1REBLREW7W6W5TO : MAIN (6)FROM :

Page 23

ABCDE1234567YST-SW320 PRINTED CIRCUIT BOARD (Foil side)89191BEBLBEW16W15W14TO : MAIN (6)TO : MAIN (1)DR+OUTDR—AYST+V1#17W17TO : MAIN (3)VCCVCCEEPWS+V

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