Technics SX-PR270 M

Service
Manual
mw Specifications
KEYBOARD
SOUND GENERATOR
MAXIMUM NUMBER OF NOTES
PRODUCED SIMULTANEOUSLY
PCM Digital Ensemble
SX-PR270
(M), (MC), (XM), (EN), (EH), (EF), (EZ), (EW), (EA),
(EP), (EK), (XL), (XR), (XS), (XD), (X), (XT)
AREAS
(M): U.S.A. (EK): the United Kingdom \
(MC): Canada (XL): New Zealand
(XM): Mexico (XR): Australia
(EN): Norway, Sweden, (XS): Malaysia, Singapore,
Denmark, Finland South Africa
(EH): Holland (XD): Saudi Arabia, Kuwait
(EF): France, Italy, Belgium (X): the Middle East,
(EZ): Germany Indonesia, Hong Kong,
(EW): Switzerland the Philippines,
(EA): Austria Thailand,
(EP): Spain, Portugal, Greece (XT): Taiwan
88 KEYS
PCM
32~16 NOTES
| PIANO
GRAND PIANO, UPRIGHT PIANO, E PIANO 1, E PIANO 2
SOUND SELECT
ROCK PIANO, HARPSI/HAWAI! GTR, GUITAR, ELECTR GUITAR, MALLET, SPECIAL PERC, BRASS 1, BRASS 2, TRUMPET, SAX, FEED,
FLUTE/OBOE, ORGAN, STRINGS, SYNTH, ACOUSTIC BASS, ELECTRIC BASS, SPECIAL BASS
(WITH 2 VARIATIONS FOR EACH SOUND) :
KEY SPLIT
© (G2, C3, C4)
PEDAL
SUSTAIN, SOSTENUTO, SOFT
EFFECT
O
DIGITAL REVERB
© (ROOM, STAGE, HALL)
TRANSPOSE
© (G~-c~F)
|
RHYTHM SELECT
MARCH, COUNTRY, WALTZ, BIG BAND, JAZZ COMBO, JAZZ BALLAD, TRAD JAZZ, JAZZ WALTZ, LATIN 1, LATIN 2, 8 BEAT 1, 8 BEAT 2,
ROCK'N'ROLL, SHUFFLE, ROCK BALLAD, 16 BEAT 1, 16 BEAT 2, JAZZ ROCK, DISCO, LATIN ROCK
(WITH 3 VARIATIONS FOR EACH SOUND)
CONTROL
START/STOP, SYNCHRO START, COUNT & FILL IN, INTRO & ENDING, TEMPO
RHYTHM
KEYBOARD PERCUSSION
44 KEYS
METRONOME
O (1, 2)
ONE TOUCH PLAY/
MUSIC STYLE SELECT
O
AUTO PLAY CHORD
BASIC SPLIT, ADVANCED SPLIT, PIANIST, ACCOMP PART 1, 2, 3
=
OYNAMIC ACCOMP.
O
PANEL MEMORY
SET, 1~6
SEQUENCER
STORAGE CAPACITY: APPROX 7400 NOTES, 8 PARTS (RIGHT, LEFT, BASS, ACCOMP/CHORD 1, ACCOMP 2, 3, DRUMS, CONTFDL)
INPUT MODES: REAL TIME, STEP (CHORD ONLY)
EDIT FUNCTIONS: TRACK CLEAR, SONG CLEAR
COMPOSER
STORAGE CAPACITY: APPROX 1300 NOTES, 5 PARTS (BASS, ACCOMP 1, 2, 3, DRUMS), MEMORY: 1~8
EDIT FUNCTIONS: COMPOSER CLEAR, SEAT, QUANTIZE, PERC ERASE (DRUMS ONLY)
DISPLAY
2)
aaa
DEMO
ie)
CONTROL
ja.
MAIN VOLUME, BALANCE, TRANSPOSE/PROGRAM
TUNING
O
MIDI
CHANNEL, OCTAVE SHIFT, LOCAL CONTROL, P. MEM P-CHANGE, START/STOP, MIDI CLOCK, SONG SELECT, MIDI LOAD, INPLT MO WE,
P. CHANGE MODE, NOTE ONLY, MID! OUT, EXT. SEQ. MODE, PITCH BEND RANGE
OTHERS
OCTAVE SHIFT, REVERS DEPTH, ACCOMP VOLUME, PIANO TUNING, TOUCH SENSITIVITY, PEDAL SETTING, P. MEM EXPANDO,UIN FAANGE,
MEDLEY, DiSK FORMAT, INITIAL

Technics SX-PR270 M Specifications

General

Type	Digital Piano
Number of Keys	88
Touch Sensitivity	Yes
Polyphony	64 notes
Sound Engine	PCM
Effects	Reverb, Chorus
Sequencer	Yes
Demo Songs	Yes
Built-in Speakers	Yes
Headphone Jack	Yes
MIDI	Yes
Connectivity	MIDI In/Out
Pedals	Soft, Sostenuto
Power Supply	AC
Keyboard	88-key
Key Action	Weighted Hammer Action

Summary

General Safety Precautions

Servicing Safety Guidelines

Adhere to safety rules when servicing the unit.

Insulation Resistance Testing

Test insulation resistance to prevent shock hazards.

Piano Assembly Guide

Basic Functions Overview

Demonstration, Reverb, and Sound Selection

Explore DEMO tunes, DIGITAL REVERB effects, and SOUND SELECT options.

Performance Styles and Accompaniment

Manage PLAY STYLE, AUTO PLAY CHORD, DYNAMIC ACCOMP, and BALANCE controls.

Rhythm, Percussion, and Tempo Control

Select rhythms, use keyboard percussion, and manage tempo.

Advanced Features: MIDI, Sequencer, Memory

Learn about MIDI, SEQUENCER, COMPOSER, and PANEL MEMORY functions.

Keyboard Touch Response and Transpose

Understand TOUCH RESPONSE and the TRANSPOSE feature.

Pedal Functions and Initialization

Details on pedal operations and system initialization.

Digital Disk Recorder and Program Section

Overview of disk storage and program section utility.

Service Disassembly Procedures

Cover and Panel Removal

Steps for removing top cover, keyboard cover, control panel.

Keyboard Assembly and Key Removal

Procedures for removing the keyboard assembly and individual keys.

Speaker Removal

Instructions for safely removing the unit's speakers.

Troubleshooting Common Issues

Sound, Effect, and Rhythm Issues

Addresses problems with sound, effects, and rhythm.

Auto Play Chord and Accompaniment Issues

Solutions for AUTO PLAY CHORD and accompaniment problems.

Sequencer, Composer, and Disk Recorder Issues

Sequencer and Composer Troubleshooting

Resolving issues with SEQUENCER and COMPOSER functions.

Digital Disk Recorder Troubleshooting

Addressing problems with the Digital Disk Recorder.

Error Display Diagnostics

SequencerComposer Error Messages

Interprets and resolves SEQUENCER/COMPOSER error codes.

Digital Disk Recorder Error Messages

Explains and fixes DIGITAL DISK RECORDER error messages.

Self-Diagnostic Testing Procedures

Component Self-Diagnostic Modes

Details on self-diagnostic modes for key components.

Self-Diagnostic Test Examples

Specific test modes and expected results for components.

MIDI Implementation Chart

Servicing Precautions and Safety

Waveform Measurement Guidelines

Procedures for measuring output waveforms with test equipment.

Component Identification Marks

Explains safety marks on components and their importance.

Wiring Connection Diagram

System Block Diagram

Main and Jack Circuit Diagram

Main and Jack Circuit Board Layout

Power Supply and Headphone Circuit Board

Control Panel Circuit Boards

Sequencer Control Circuit

Floppy Disk Drive Control Circuit

Manual Keyboard Circuit Diagrams

Replacement Parts List (PCB & Wiring)

Cabinet and Chassis Parts List

Product Packing Information