Yamaha Portatone PSR-172 Bedienungsanleitung

SERVICE MANUAL

■ CONTENTS

SPECIFICATIONS.............................................................................. 3

PANEL LAYOUT ................................................................................. 4

CIRCUIT BOARDS ............................................................................ 5

OVERALL CIRCUIT DIAGRAM ......................................................... 8

PARTS LIST

PK 001697

The PSR-172 service manual provides only the differences as

compared with the PSR-170.You must have a PSR-170 service

manual (PK 001652 ) before servicing this unit.

PSR-172

IMPORTANT NOTICE

This manual has been provided for the use of authorizedYamaha 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 allYamaha product owners that all service required should

be performed by an authorizedYamaha Retailer or the appointed service representative.

IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authoriza-tion,

certification, recognition of any applicable technical capabilities, or establish a principal-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 ofYamaha are continually striving to improveYamaha products.Modifications are, therefor, inevitable

and changes in specification 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 bus in the unit (heavy gauge black wires

connect to this bus).

IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply

power to the unit.

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

REASON WHAT SO EVER!

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.

■WARNING

Components having special characteristics are marked Zand must be replaced with parts having specification equal to

those originally installed.

PSR-172

■ SPECIFICATIONS

Keyboard

61 standard-size keys (C1 - C6)

Display

Large multi-function LCD display

Setup

STANDBY/ON

MASTER VOLUME : MINI-MAX

Panel controls

Overall, SONG, VOICE, STYLE, DEMO, POTABLE

GRAND, DJ, METRONOME, Dict., L, R, TEMPO/TAP numeric

keypad (0 - 9, +,-)

Voices

100 panel voices (max.polyphony : 16)

Effects

Dual (Included in Voice),

Harmony/Echo (Included in Voice),

Split (Included in Voice),

Sustain

Auto Accompaniment

100 styles

Fingering : Multi Fingering

Sections : Intro, Main A, B, Ending, Fill

Overall controls

Multi Pad, Grade,Talking, Transpose, Tuning, Accompani-ment

Volume, SongVolume, Metronome Volume

Style controls

Acmp On/Off, Sync-Start, Start, Stop, Intro/Ending/rit., Main A,

B (Auto Fill)

Song controls

Start, Stop, Pause, A-B Repeat, Fast Forward, Rewind, Mel-

ody Voice Change

OneTouch Setting

1/style, 1/song

Multi Pads

4 pads x 10 banks

Yamaha Education Suite

Dictionary, Lesson 1-4

Preset songs

100 songs

Amplifier

2.0W + 2.0W

MIDI

IN/OUT

Auxiliary jacks

PHONES/OUTPUT, DC IN 12V, MIDI IN/OUT, SUSTAIN

Speakers

12cm x 2

Power consumption

VL/CSA 6.8W, CE7.5W (when using PA-3B power adaptor)

Power supply

Adaptor : Yamaha PA-3C or PA-3B AC power adaptor

Batteries : Six “D”size, R20P(LR20) or equivalent batteries

Dimensions

931 x 348.8 x 127.9 mm (36-2/3" x 13-3/4" x 5-1/16")

Weight

4.4kg (9 Ibs., 11 oz.)

Supplied accessories

Music Rest, Owner’s Manual, Song Book

Optional accessories

Headphones : HPE-150

AC power adaptor : PA-3C or PA-3B

Keyboard stand : L-2L, L-2C

PSR-172

● Top Panel

■ PANEL LAYOUT

q[MASTER VOLUME] dial

wPower switch ([STANDBY/ON])

eLESSON [L] (Left) and [R] (Right) buttons

r[Dict.] (DICTIONARY) button

t[OVERALL] button

y[SONG] button

u[VOICE] button

i[STYLE] button

o[PORTABLE GRAND] button

!0 [METRONOME] button

!1 [DJ] button

!2 Numeric keypad, [+/ON] and [-/OFF] buttons

!3 [ACCOMPANIMENT ON/OFF]

([A-B REPEAT]) button

!4 [SYNC START] ([ PAUSE]) button

!5 [START/STOP] button

!6 [INTRO/ENDING/rit.] ([ REW]) button

!7 [MAIN/AUTO FILL] ([ FF]) button

!8 [TEMPO/TAP] button

!9 [DEMO] button

@0 [MULTI PAD/DJ GAME] buttons

● Rear Panel

@1 [MIDI IN], [MIDI OUT] terminals

@2 [SUSTAIN] jack

@3 [PHONES/OUTPUT] jack

@4 [DC IN 12V] jack

@1 @2 @3 @4

GrandPno

!8 i

PSR-172

Note : See parts list for details of circuit board conponent parts.

DM-LCD (XZ643D0) ..............................................................................5

PN-AM 1/2 (XZ644C0)...........................................................................6

PN-AM 2/2 (XZ644C0)...........................................................................7

VR (XZ644C0)........................................................................................7

■ CIRCUIT BOARDS

● DM-LCD Circuit Board

to MK-L

to PN-AM 1/2-CN102 to PN-AM 2/2-CN201

to PN-AM 2/2-CN203

Pattern side

Component side

2NA-V692510

PSR-172

● PN-AM 1/2 Circuit Board

Component side

DC IN 12V PHONES/

OUTPUT

to BATTERY to DM-LCD-CN04 to PN-AM 2/2-CN202 not installed

to VR-CN106

to SPEAKER L

A-B

REPEAT PAUSE START/

STOP REW FF

ACMP

ON/OFF SYNC

START START/

STOP

STANDBY/ON

INTRO/

ENDING/rit. MAIN/

AUTO FULL TEMPO/

TAP

LESSON

LLESSON

OVERALL

Dict.

2NA-V708340

PSR-172

Component side

● VR Circuit Board

● PN-AM 2/2 Circuit Board

MIDI INOUTSUSTAIN

to DM-LCD-CN02 to PN-AM 1/2-CN103 to DM-LCD-CN01

to SPEAKER R

STYLE

DEMO

–/OFF 0/RESET +/ON

789

456

123

PORTABLE

GRAND DJ

METRONOME

1234

VOICE

SONG

MULTI PAD/DJ GAME

to PN-AM 1/2-CN105

MASTER VOLUME

CN106

Component side

PN-AM 2/2, VR : 2NA-V708340

DM-LCD, PN-AM, VR : 28CC1-8819402

MK-L, MK-H : 28CC1-8819596 7

WARNING

Components having special characteristics are markedZand must

be replaced with parts having specification equal to those originally

installed.

: Mylar Capacitor

: Ceramic Capacitor

: Semiconductive Ceramic Capacitor

: Metal Oxide Film Resistor

Note : See parts list for details of circuit board component parts.

PN-AM

MASTER

VOLUME

PHONES/

OUTPUT

STANDBY/ON

DC IN 12V

SPEAKER

1/2

*1:The fuse is soldered.

2SB1135 or 1269

POWER AMP

REGULATOR

+5V

■ OVERALL CIRCUIT DIAGRAM (Modifying part)

TR101, R119, R120 and IC002 (DM-LCD) have been modified.

IJKLH

PSR-172

PARTS LIST

■CONTENTS

OVERALL ASSEMBLY.............................................................................................................................2

KEYBOARD ASSEMBLY ......................................................................................................................... 4

ELECTRICAL PARTS ........................................................................................................................5 – 8

■WARNING

Notes : DESTINATION ABBREVIATIONS

The numbers “QTY” show quantities for each unit.

The parts with “--” in “PART NO.” are not available as spare parts.

This mark “ } ” in the REMARKS column means these parts are interchangeable.

The second letter of the shaded ( ) part number is O, not zero.

The second letter of the shaded ( ) part number is I, not one.

M : South African model

O : Chinese model

Q : South-east Asia model

T : Taiwan model

U : U.S.A. model

V : General export model (110V)

W: General export model (220)

N,X : General export model

Y : Export model

A : Australian model

B : British model

C : Canadian model

D : German model

E : European model

F : French model

H : North European model

I : Indonesian model

J : Japanese model

Components having special characteristics are marked Zand must be replaced with parts having speci-

fication equal to those originally installed.

PSR-172

■OVERALL ASSEMBLY

140

260

120

120b

120c

C150

C130

C60

C70

C50

C80

C70

C30

C40

C20

C110

C100

200

240 310

310

180

160

170

270

130 190

300

150

250

110

C10

C120

C180

100

L20

L30

L60

L40

L110

240

L120

L130

L40

L50

L120

120a

120e

120d

120e

120f

Battery Cover Assembly

Lower Case Assembly

Keyboard Assembly

(See page 4.)

LCD Unit

Music Rest

210

240

240 210

240

270

C90

1/2

2/2

C160

C170

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