Yamaha YST-SW1500 ユーザーマニュアル

100828

IMPORTANT NOTICE

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.

P.O.Box 1, Hamamatsu, Japan

■ CONTENTS

TO SERVICE PERSONNEL .......................................... 2

FRONT PANEL .............................................................. 2

REAR PANELS .......................................................... 3~4

SPECIFICATIONS.......................................................... 5

DISASSEMBLY PROCEDURES ............. 6~7

SERVICE POSITION 7

REPAIR PROCEDURES 8~11

ADJUSTMENT 12~14

IC DATA ....................................................................... 15

BLOCK DIAGRAM ....................................................... 16

PRINTED CIRCUIT BOARD .................................. 17~21

IC BLOCK..................................................................... 22

PIN CONNECTION DIAGRAM ................................... 22

SCHEMATIC DIAGRAM .............................................. 23

PARTS LIST ........................................................... 25~37

REMOTE CONTROL.................................................... 38

Parts List for Carbon Resistors ................................ 39

SERVICE MANUAL

SUBWOOFER SYSTEM

YST-SW1500

V983440

2

YST-SW1500

WALL

OUTLET

EQUIPMENT

UNDER TEST

AC LEAKAGE

TESTER OR

EQUIVALENT

INSULATING

TABLE

■ TO SERVICE PERSONNEL

1. Critical Components Information

Components having special characteristics are marked s

and must be replaced with parts having specifications equal

to those originally installed.

2. Leakage Current Measurement (For 120V Models Only)

When service has been completed, it is imperative to verify

that all exposed conductive surfaces are properly insulated

from supply circuits.

● Meter impedance should be equivalent to 1500 ohm shunted

by 0.15µF.

“CAUTION”

“F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 12A,

250V FUSE.”

CAUTION

F1: REPLACE WITH SAME TYPE 12A, 250V FUSE.

ATTENTION

F1: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 12A, 250V.

● Leakage current must not exceed 0.5mA.

● Be sure to test for leakage with the AC plug in both polarities.

■ FRONT PANEL

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 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.

3

YST-SW1500

■ REAR PANELS

A model

U, C models

B model

4

YST-SW1500

G model

J model

K model

5

YST-SW1500

420 (16-9/16") 448 (17-5/8")

Unit : mm (inch)

511 (20-1/8")

420 (16-9/16")

• DIMENSIONS

■ SPECIFICATIONS /

Type / Advanced Yamaha Active Servo Technology

Output Power / 1kW (100 Hz, 5 ohms 10% T.H.D.)

Input Sensitivity /

INPUT1 (SP) ........................ 1.0 V (50 Hz, 1 kW / 5 ohms, L + R)

INPUT2 (PJ) ....................... 50 mV (50 Hz, 1 kW / 5 ohms, L + R)

INPUT3 (PJ) ....................... 50 mV (50 Hz, 1 kW / 5 ohms, L + R)

Input Impedance /

INPUT1 (SP) ................................................................ 2.2 k-ohms

INPUT2 (PJ) .................................................................. 12 k-ohms

INPUT3 (PJ) .................................................................. 12 k-ohms

Frequency Response / 16 Hz to 160 Hz

Driver / 12" Cone, Magnetic Shielding Type

Input Section /

INPUT1 .............................................................. Speaker Terminal

INPUT2 ............................................................................. Pin Jack

INPUT3 ............................................................................. Pin Jack

I/O PORT .......................................................... 3.5 mm Mini Jack

Output Section /

H.P.F. OUT ...................................................................... Pin Jack

I/O PORT .......................................................... 3.5 mm Mini Jack

Operation Section /

Front Panel ....... STANDBY/ON Switch, B.A.S.S. Switch,

VOLUME Control, HIGH CUT Control

Rear Panel ....... Power Switch, Auto Standby Switch (HIGH /

LOW / OFF), H.P.F. Switch (80 Hz / 100 Hz)

Power Supply /

U, C models ........................................................ AC 120 V, 60 Hz

A model ............................................................... AC 240 V, 50 Hz

B, G models ........................................................AC 230 V, 50 Hz

K model ............................................................... AC 220 V, 50 Hz

J model .......................................................... AC 100 V, 50/60 Hz

Power Consumption /

U, C, A, B, G, K models ...................................................... 250 W

J model ................................................................................ 185 W

Standby Power Consumption / 1.0 W

Dimension / (W x H x D) ................... 420 x 511 x 448 mm

(16-9/16" x 20-1/8" x 17-6/8")

Weight / 29.0 kg (63 lbs. 15 oz.)

Finish /

Cherry color ......................................... U, C, A, B, G, K, J models

Black color ................................................ U, C, A, B, G, J models

Included Accessories /

Power Cable x 1 pc (U, C, G, K, J models), Speaker Cable (4 m) x

2 pcs (J model), Pin Cable for Subwoofer (3 m) x 1 pc (J model),

Non-skid Pad x 4 pcs, Remote Control x 1 pc, Battery (AA, R6,

UM-3) x 2 pcs, Grounding Cable

* Specifications are subject to change without notice due to product

improvements.

U .......... U.S.A. model C ...... Canadian model

A .......... Australian model B ...... British model

G .......... European model K ...... Korean model

J ........... Japanese model

6

YST-SW1500

1

CB8

CB7

Front Panel Ass'y

■ DISASSEMBLY PROCEDURE

(Remove parts in the order as numbered.)

Disconnect the power cable from the AC outlet.

1. Removal of Front Panel Ass'y

a. Remove 4 screws (1) and then remove the Front Panel

Ass'y. (Fig. 1)

* Use an Allen wrench (3mm) to unscrew the Front

Panel Ass'y.

b. Remove CB7 and CB8. (Fig. 1)

Fig. 2

2. Removal of Rear Panel Ass'y

a. Remove 12 screws (2) and then remove the Rear

Panel Ass'y. (Fig. 2)

* Arrow marks (

) are printed to identify the screws to

be removed.

* When assembling the Rear Panel Ass'y, check to

ensure that the gasket is not damaged so as to

prevent air leakage from occurring.

b. Remove CB1, CB3 and CB6. (Fig. 2)

Fig. 1

2

Rear Panel Ass'y

7

YST-SW1500

3

4

3

Fig. 3

• Installation of emblem

a. Put the emblem into the cabinet at the specified

position.

b. Place a piece of cloth/wood on top of the emblem.

c. Using a mallet, hammer the emblem in place through

the cloth/wood.

* Use special care not to cause damage to the

emblem or cabinet while hammering the emblem.

3. Removal of Driver

a. Remove 8 screws (3) and then remove the Base

Ass'y. (Fig. 3)

b. Remove 8 screws (4) and then remove the Driver.

(Fig. 3)

■ SERVICE POSITION

MAIN (2) P.C.B. CB1 – POWER (2) P.C.B. CB8:

V9956600 (6P 700mm)

MAIN (1) P.C.B. CB3 – POWER (2) P.C.B. CB7:

V9956700 (11P 750mm)

When checking the P.C.B.:

• To help lift the power cable connecting section of the

rear panel, put the supporting wood under the rear

panel assembly.

• Use the extension cable for servicing for the following 2

sections.

MAIN (2) P.C.B. CB1 – POWER (2) P.C.B. CB8:

V9956600 (6P 700mm)

MAIN (1) P.C.B. CB3 – POWER (2) P.C.B. CB7:

V9956700 (11P 750mm)

Fig. 4

Extension Cable

Supporting Wood

CB3

CB7

CB1

CB8

MAIN (2) P.C.B.MAIN (1) P.C.B.

POWER (2) P.C.B.

8

YST-SW1500

■ REPAIR PROCEDURES

When the power amplifier has failed, it is possible that the

switching power supply section has also failed. Therefore,

it is recommended to separate the power amplifier section

and the switching power supply section for the repair work.

1. Separating power amplifier section

and switching power supply section

Disconnect CB4 and CB5 of the MAIN (1) P.C.B.,

thereby the power amplifier section and the switching

power supply section will be separated.

2. Repairing power amplifier (MAIN (1)

P.C.B.)

Described below is the method to diagnose trouble of

the major parts.

FET (Q29, Q30, Q34, Q35, Q41~44)

Check the resistance between G and S to determine if

any trouble exists.

If a trouble has occurred, the G-S resistance should

indicate a value close to 0Ω.

If no trouble exists, the G-S resistance value should be

as follows.

Q29, Q30, Q34, Q35: about 820Ω

Q41~44: about 115Ω

Transistors (Q22A, Q22C, Q28A, Q28C, Q33A, Q33C,

Q39A, Q39C)

Use the diode characteristics between B and E, B and

C to determine if any trouble exists.

Operation check

1) Prepare a stabilized DC power source. No load

resistance is needed.

2) Set the output voltage of the stabilized DC power

source to +30V and -30V.

3) Connect the +B terminal of the stabilized DC power

source to JY201, -B terminal to JY202 and GND

terminal to GND. (Fig. A)

4) Connect the probe of the oscilloscope to R170 and

GND. (Fig. A)

5) Connect the output terminal of the signal generator

to J57 (=base of Q16) via 100µF 16V +5.6kΩ and the

GND terminal to GND.

6) Set the output signal of the signal generator to sine

wave, 100Hz.

7) Turn on the stabilized DC power source.

8) Raise the output level of the signal generator

gradually and check the output waveform on the

oscilloscope.

9) If the output waveform is not distorted up to 40Vp-p

output level, the operation is OK.

After confirming operation, disconnect the stabilized

DC power source, signal generator and 100µF 16V.

G

D

FET

S

B

C

E

TR

9

YST-SW1500

Fig. A

Q42

Q44

Q35

Q30

Q29

Q34

Q43

Q41

Q20

Q28A

R170

Q39CQ22A

Q33A

Q28C

GND

JY201

JY202

Oscilloscope

MAIN (1) P.C.B.

J57

Q16

Q22C Q39A

Q33C

CB4

CB5

Stabilized DC Power Source

Signal Generator

Set to -30. Set to +30.

GND

GND OUT

Ground side of probe

10

YST-SW1500

3. Repairing switching power supply

section (POWER (1) P.C.B.)

To avoid possible danger:

C102 and C103 are dangerous, for a high voltage is

retained there even after the power is turned off.

Before the repair work, connect about 100Ω 5W

resistance between terminals of the capacitor to forced

discharging.

After the repair work, also perform forced discharging

by connecting about 100Ω 5W resistance between

terminals of the capacitor.

Replacing faulty parts

Described below is the method to diagnose trouble of

the major parts.

Transistors (Q51, 52)

If a trouble exists, the C-E resistance value should be

close to 0Ω.

Operation check

1) Connect the probe of the oscilloscope between TP3

and TP4.

2) Turn on the POWER switch.

3) Turn on the STAND/BY switch. RY2 turns on and the

SW power source is activated.

4) Check the waveform on the oscilloscope.

5) About 12 seconds later, RY2 turns off and the

waveform on the oscilloscope disappears at the

same time.

This does not mean any abnormality but indicates

that the protection circuit is at work because CB5 is

disconnected.

In order to check this, connect CB5 and turn on the

STANDBY/ON switch. Then RY2 turns on and the

SW power source is activated. Watch the waveform

on the oscilloscope to check that RY2 does not turn

off.

After operation check

Be sure to turn off the POWER switch.

Caution

Never connect the oscilloscope to any other part after

the operation check because it is dangerous with a high

potential applied to its ground side.

Also, use care not to touch the frame of the

oscilloscope due to the same reason.

11

YST-SW1500

Fig. B

TP3

C103

C102

Q51

Q52

TP4

RY2

Oscilloscope

POWER (1) P.C.B.

Ground side of probe

Caution: Use the AC range.

12

YST-SW1500

■ ADJUSTMENT

• Confirmation of Power Amp section

operation

For the power amplifier section which has been repaired, it

is absolutely necessary to confirm that a correct waveform

is obtained at points indicated by A and B in the schematic

diagram according to the following procedure.

Devices required

Signal generator (100Hz sine wave)

8 Ω or 6 Ω load resistor

Oscilloscope (dual trace type)

Connection

1) Connect the output signal from the signal generator to

the L/MONO terminal.

2) Disconnect the connector terminal connected to the

speaker unit and reconnect it to the load resistor.

3) Connect the HOT side of the oscilloscope CH1 probe to

the point A or B indicated in the figure and the GND side

to the GND of the main unit.

4) Connect the oscilloscope CH2 input to the red side of

the connector cable, which is connected with the load

resistor.

At this time, the GND terminal of CH2 must be left

unconnected.

Setting

1) Set the signal generator to the sine wave, 100Hz and

minimum output level settings.

2) Turn on the power to YST-SW1500.

3) Adjust the output level of the signal generator and the

volume of YST-SW1500 so that the output level

observed at oscilloscope CH2 is 70Vp-p.

Waveform observation

With the settings made as described above, observe the

waveform obtained at CH1 for judgment.

Normal

Abnormal

+B or GND level

becomes

constant

Abnormal

-B or GND level

becomes

constant

13

YST-SW1500

•Idling Adjustment

To stabilize operation of the amplifier, turn ON the power

with no input signal and wait for 1 or 2 minutes in non

loaded condition before the adjustment.

Adjust VR1 so that the voltage between terminals TP1 and

TP2 is DC 30mV to 150mV.

Q42

Q44

Q35

Q30

Q29

Q34

Q43

Q41

Q20

D38

D35

TP2

TP1

MAIN (1) P.C.B.

Point B

Point A

DC 30mV

to 150mV

Point B

DC 30 mV

to 150 mV

Point A

14

YST-SW1500

• AUTO STANDBY operation check

Setting

1) Turn off the POWER switch.

2) Set the AUTO STANDBY/sensing switch to OFF.

3) Connect the output of the signal generator to the L/

MONO terminal.

4) Set the signal generator for the sine wave, 100Hz,

10mV.

Starting test mode

Turn on the POWER switch while pressing the STANDBY/

ON key and B.A.S.S. key simultaneously. Keep pressing

these keys for 5 seconds or more, and the test mode will

be activated.

Display in test mode

The STANDBY/ON LED lights up in green.

At this time, MUSIC/MOVIE and PHASE LED’s light up as

well.

Confirmation

1) Change the AUTO STANDBY/sensing switch setting

from OFF to LOW.

5 seconds later, the STANDBY/ON LED changes from

green to red.

At the same time, MUSIC/MOVIE and PHASE LED’s go

off.

2) Change the AUTO STANDBY/sensing switch setting

from LOW to OFF.

The STANDBY/ON LED changes from red to green.

At this time, MUSIC/MOVIE and PHASE LED’s light up

as well.

3) Change the STANDBY/sensing switch setting from

LOW to HIGH.

The STANDBY/ON LED remains unchanged in green.

Canceling test mode

Turn off the POWER switch.

15

YST-SW1500

No. Port No. I/O Function name Detail of function

Standby LED driving output, GREEN

Standby LED driving output, RED

Predicted danger detection

STANDBY /ON SW detection

Reference voltage for AD conversion

Connection for grounding

Clock

Power supply +5V

System reset input

Connection for grounding

Preset 1 LED driving output

Preset 2 LED driving output

Preset 3 LED driving output

Standby terminal

Power supply relay driving output

B.A.S.S. switch detection

MUSIC LED driving output

MOVIE LED driving output

Motor 1 clockwise revolution

Motor 1 counterclockwise revolution

Motor 2 clockwise revolution

Motor 2 counterclockwise revolution

Phase LED driving output

Error detect terminal

Motor 1 angle detection

Motor 2 angle detection

Auto Standby detection

Remote control signal detection

Standby terminal

■ IC DATA

IC12 : LC651152N (POWER P.C.B.)

µ-COM

PF3/INTPF2/SCK

RES

1

PA0/AD0

27

PA3/AD3

30

Por t A

I. DEC

PC

STACK 1

STACK 8

ROM

1

PG0/AD4

1

PG3/AD7

4

Por t G

1

PC0

17

PC3

20

Por t C

1

PD0

21

PD3

24

Por t D

I/O Bus

I/O Buffer

E

Por t E

1

PF1/SO

14

Serial

Shift

Register

Serial

Mode

Register

AC

ALU

DP

Serial

Mode

Register

RAM

1

PF0/SI

13

1

PF2/SCK

15

1

PF3/INT

16

Serial

Shift

Register

Lower Digit

Higher Digit

4 bit

4/8 bit

1

AV+

5

AV-

6

8 bit

ADC

OSC1

8

RES

11

TEST

12

VDD

10

VSS

7

OSC2

9

8 2325

PE0

26

PE1

Por t F

8 2313

PF0

16

PF3

2326

WDR

System Bus

IR

STS

ZF

ZSF

CF TMF

EXTF

CSF

WRF

CTLTM

INT

OSC

PG0/AD4

PG1/AD5

PG2/AD6

PG3/AD7

AV+

AV-

VSS

OSC1

OSC2

VDD

TEST

PF0/SI

PF1/SO

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

PA3/AD3

PA2/AD2

PA1/AD1

PA0/AD0

PE1/WDR

PE0

PD3

PD2

PD1

PD0

PC3

PC2

PC1

PC0

16

YST-SW1500

IC11 IC11 IC22

VR1

VOLUME

L.P.F.

6dB/oct.

B.P.F.

Q3, 4, 5, 7

–

+

1

IC22 IC6A

IC15

IC12

µ-COM

Q26, 27, 32,

D24, 29, 30

23, 24 M2R, M2F

29 TMR

PROTECTION

REGULATOR

IC5

Q50

L

R

+

–

+

INPUT 1

L

R

INPUT 2

L

R

+

–

+

OUTPUT

IC23

L.P.F.

12dB/oct.

HIGH

CUT

VR2

IC23

L.P.F.

12dB/oct.

HIGH

CUT

VR2

IC6B

PRE DRIVE

Q12 ~ 19

POWER DRIVE

Q29, 30, 34, 35

A.N.I.C

A-YST

IC1, 2, Q21,

D8, 9, 12

R234

0.22 x 2

SPEAKER

Q24, 28C, 33C,

39A, 41, 43

Q25, 28A, 33A,

39C, 42, 44

Q37, 38

Q47

Q6

IC16

–B

+B

H.P.F.

12dB/oct.

IC10, 14

IC17,

Q53~56,

TH1

POWER SUPPLY

POWER

SW5

IC7

+5V

+8V

+B

–B

D59

RY2

T2

+

–

F1

FI1 L7

SWITCHING POWER SUPPLY

Q51, 52,

D60, 61,

D64, 65

T3

16

15

14

13

12

11

7

8

6

3

REGULATOR

IC3

DRIVER

+15V

IC9

P. W . M

IC8

D68

POWER SUPPLY

PHASE

SELECT

BASS

SELECT

M

21, 22 M1R, M1F

3 ERR

20 BSR

26 ERR

25 PH

IC13

M

L

R

INPUT 3

L

R

H.P.F. OUTPUT

IN

OUT

REMOTE

IC24

IC19A

H.P

.F.

12dB/oct.

SW2

80/100Hz

IC19B

H.P

.F.

12dB/oct.

SW2

80/100Hz

MUTING

Q1, 2

30 RMT

17 PW

MUSIC

SENSOR

IC4

REMOTE

CONTROL

SENSOR

U1

D41

■ BLOCK DIAGRAM

ABCDEFGH I J

1

2

3

4

5

6

7

YST-SW1500

17

■ PRINTED CIRCUIT BOARD (Foil side)

C140

G5

R313

J152

MAIN (1) P. C. B.

(Lead Type Device)

1

9

1

9

1

9

1

9

POWER (1)

VHI

POWER (1)

VHI

POWER

(1)

+5

+B

PW

E

POWER

(2)

MAIN

(2)

ERR

PW

PH

BASS

SIG

E1

+5

E2

DTC

+12

-12

MUTE

+12

-12

E

+B

Q42

Q44

Q35

Q30

Q29

Q34

Q43

Q41

Q20

Driver

SP+

SP-

DC 30mV

to 150mV

Idling Test Point

D1 G4

D2 F6

D3 F7

D4 E7

D5 E6

D6 F4

D7 G4

D8 F6

D9 F7

D10 F3

D11 F3

D12 G7

D13 E4

D14 E6

D15 C4

D16 C4

D17 C6

D18 C6

D19 D5

D20 D4

D21 D6

D22 D6

D23 D2

D24 E2

D25 E5

D26 E5

D27 D6

D28 E6

D29 E2

D30 E2

D31 C2

D32 F2

D33 E5

D34 F2

D35 C6

D36 C6

D37 C4

D38 C4

D39 E3

D40 E3

IC1 F6

IC2 F7

IC6 F5

IC10 F2

IC14 F2

IC15 E2

• Semiconductor Location

Q3 F6

Q4 F6

Q5 F5

Q6 G4

Q7 F5

Q8 F7

Q9 F7

Q10 E7

Q11 E7

Q12 F4

Q13 F3

Q14 F4

Q15 F3

Q16 F4

Q17 G3

Q18 E3

Q19 G4

Q20 B5

Q21 F7

Q22A E6

Q22C E4

Q24 E4

Q25 E6

Q26 E2

Q27 E2

Q28A D6

Q28C D5

Q29 B5

Q30 B5

Q32 E2

Q33A D6

Q33C D5

Q34 B4

Q35 B6

Q37 D2

Q38 D2

Q39A E4

Q39C E6

Q41 B3

Q42 B6

Q43 B4

Q44 B6

Q45 D2

Q46 E2

Q47 D3

Circuit No. J U, C K A B G

C1, 139, 140 X X O O O O

C118, 119 X O X X X X

CB11 X X O O O O

CB14 O O X X X X

G4, 5 X X O O O O

J3 OOXXXX

J16 X O X X X X

J152 X X O O O O

JK3 O O O X X O

G4 XXOOOO

L6 OXOOOO

R312, 313 O O X X X X

TE1, 2 X X X O O X

X: NOT USED

O: USED / APPLICABLE

2

ABCDEFGH I J

1

3

4

5

7

YST-SW1500

6

18

■ PRINTED CIRCUIT BOARD (Foil side)

R312

MAIN (2) P. C. B.

(Lead Type Device)

1918

1

8

+

R

OUTPUT

INPUT 1

INPUT

2

INPUT

3

H.P.F.

OUTPUT

H.P.F.

OUTPUT

AUTO

STANDBY

HIGH

LOW

OFF

100Hz80Hz

INPUTOUTPUT

L

--+

REMOTE

MAIN (1)

E

-12

+12

MUTE

+B

POWER (2)

HCUT

E

DIR

CSTI

CSTO

TMR

D69 B3

D70 B3

IC4 B3

IC11 F3

IC19 C3

IC24 E3

Q1 E3

Q2 D3

• Semiconductor Location

Circuit No. J U, C K A B G

C1, 139, 140 X X O O O O

C118, 119 X O X X X X

CB11 XXOOOO

CB14 OOXXXX

G4, 5 X X O O O O

J3 OOXXXX

J16 XOXXXX

J152 X X O O O O

JK3 OOOX X O

G4 XX OOOO

L6 OXOOOO

R312, 313 O O X X X X

TE1, 2 X X X O O X

X: NOT USED

O: USED / APPLICABLE

ABCDEFGH I J

1

2

3

4

5

6

7

YST-SW1500

19

■ PRINTED CIRCUIT BOARD (Foil side)

D59 C5

D60 G4

D61 E4

D62 C5

D63 B5

D64 H3

D65 D2

D66 D4

D68 D4

IC3 D4

IC5 C5

IC7 B5

• Semiconductor Location

IC8 C4

IC9 C4

IC17 B5

Q50 C5

Q51 G3

Q52 F3

Q53 B4

Q54 B4

Q55 B4

Q56 B5

C139

G4

C137

G3

C138

POWER (1) P. C. B.

(Lead Type Device)

MAIN (1)

PW

+B

+5

E

MAIN (1)

POWER (4)

INLET

18

7

1

8

14

169

Circuit No. J U, C K A B G

C1, 139, 140 X X O O O O

C118, 119 X O X X X X

CB11 X X O O O O

CB14 O O X X X X

G4, 5 X X O O O O

J3 OOXXXX

J16 X O X X X X

J152 X X O O O O

JK3 O O O X X O

G4 XXOOOO

L6 OXOOOO

R312, 313 O O X X X X

TE1, 2 X X X O O X

X: NOT USED

O: USED / APPLICABLE

2

ABCDEFGH I J

1

3

4

5

7

YST-SW1500

6

20

R315

R314

R302

Q57

J152

POWER (2) P. C. B.

(Lead Type Device)

C Version

STANDBY/ONB.A.S.S.

HIGH CUTVOLUME

110

19

115

1

10

30

16

POWER (3)

BSR

BSG

PWR

PWG

M2L

M3L

M1L

PH

+12

RMT

+5A

CSTI

CSTO

E2

MAIN (2)

HCUT

E

DIR

CSTI

CSTO

TMR

MAIN (1)

SIG

-12

+12

DTC

E2

+5

E1

BASS

PW

PH

ERR

POWER (2) P. C. B.

(Lead Type Device)

D Version

STANDBY/ONB.A.S.S.

HIGH CUTVOLUME

110

19

115

1

10

30

16

POWER (3)

BSR

BSG

PWR

PWG

M2L

M3L

M1L

PH

+12

RMT

+5A

CSTI

CSTO

E2

MAIN (2)

HCUT

E

DIR

CSTI

CSTO

TMR

MAIN (1)

SIG

-12

+12

DTC

E2

+5

E1

BASS

PW

PH

ERR

■ PRINTED CIRCUIT BOARD (Foil side)

D42 H3

D47 I3

D53 H3

D54 I3

D55 I4

IC12 H4

IC13 H3

IC16 H3

IC22 G4

IC23 G4

Q49 I3

• Semiconductor Location

NOTICE

The CPU B version must be used with the power P.C.B. C version.

The CPU C version must be used with the power P.C.B. D or later version.

Using the CPU with the P.C.B. of other than versions will hinder normal operation.

POWER P.C.B. C version SERIAL NO. : I015012WY~I041803YO

POWER P.C.B. D version SERIAL NO. : I041813ZP~

D42 C3

D47 D3

D53 D3

D54 E3

D55 E4

IC12 D4

IC13 D3

IC16 D3

IC22 B4

IC23 C4

Q49 D3

• Semiconductor

Location

Circuit No. J U, C K A B G

C1, 139, 140 X X O O O O

C118, 119 X O X X X X

CB11 XXOOOO

CB14 OOXXXX

G4, 5 X X O O O O

J3 OOXXXX

J16 XOXXXX

J152 X X O O O O

JK3 OOOX X O

G4 XX OOOO

L6 OXOOOO

R312, 313 O O X X X X

TE1, 2 X X X O O X

X: NOT USED

O: USED / APPLICABLE

ページが読み込まれています...

Yamaha YST-SW1500 ユーザーマニュアル

Yamaha YST-SW1500 ユーザーマニュアル

関連論文

その他のドキュメント