Yamaha Portatone PSR-172 Service Manual

SERVICE MANUAL
■ CONTENTS
SPECIFICATIONS.............................................................................. 3
PANEL LAYOUT ................................................................................. 4
CIRCUIT BOARDS ............................................................................ 5
OVERALL CIRCUIT DIAGRAM ......................................................... 8
PARTS LIST
PK 001697
Copyright (c) Yamaha Corporation. All rights reserved. PDF-K702 ’03.03
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.

Yamaha Portatone PSR-172 Specifications

General

Number of Keys	61
Polyphony	32
Voices	100
Styles	100
Display	LCD
Type	Portable Keyboard
Speakers	2 x 2.5 W
Touch Sensitivity	No
Tones	100
Effects	Reverb, Chorus
Transpose	Yes
Tuning	Yes
Metronome	Yes
Headphone Jack	Yes
Power Supply	Batteries