Yamaha Tyros 1 Service Manual

							SERVICE MANUAL
PK001689HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF-K5381    ’02.10

 CONTENTS
SPECIFICATIONS (Tyros) ................................................................................ 3
SPECIFICATIONS (TRS-MS01) ....................................................................... 5
PNANEL LAYOUT (Tyros) ................................................................................. 6
PNANEL LAYOUT (TRS-MS01) ........................................................................ 9
CIRCUIT BOARD LAYOUT (Tyros) ................................................................. 10
CIRCUIT BOARD LAYOUT (TRS-MS01) ........................................................ 13
DISASSEMBLY PROCEDURE (Tyros) ........................................................... 14
DISASSEMBLY PROCEDURE (TRS-MS01) .................................................. 24
LSI PIN DISCRIPTION (Tyros) ....................................................................... 26
IC BLOCK DIAGRAM (Tyros) ......................................................................... 36
IC BLOCK DIAGRAM (TRS-MS01) ................................................................ 37
CIRCUIT BOARDS (Tyros) ............................................................................. 38
CIRCUIT BOARDS (TRS-MS01) .................................................................... 62
TEST PROGRAM ........................................................................................... 65
SYSTEM RESET ............................................................................................ 73
MIDI IMPLEMENTATION CHART ................................................................... 74
MIDI DATA FORMAT ....................................................................................... 75
BLOCK DIAGRAM (TRS-MS01) ..................................................................... 94
OVERALL CIRCUIT DIAGRAM (TRS-MS01) ................................................. 95
PARTS LIST
BLOCK DIAGRAM (Tyros)
OVERALL CIRCUIT DIAGRAM (Tyros)
Tyros
TRS-MS01 
						

							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 per-
sonal injury, destruction of expensive components and failure of the product to per form as specified. For
these reasons, we advise all Yamaha product owners that all service required should be performed by an
authorized Yamaha Retailer or the appointed service representative.
IMPORTANT:This presentation or sale of this manual to any individual or firm does not constitute authorization, certifica-
tion, 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 of Yamaha are continually striving to improve Yamaha 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 distributors 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 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.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
IMPORTANT.  The wires in this mains lead are coloured in
accordance with the following code:
BLUE :  NEUTRAL
BROWN :  LIVE
As the colours of the wires in the mains lead of this apparatus
may not correspond with the coloured makings identifying the
terminals in your plug proceed as follows:
The wire which is coloured BLUE must be connected to the
terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the
terminal which is marked with the letter L or coloured RED.
Making sure that neither core is connected to the earth
terminal of the three pin plug.
This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd.           (2 wires)
     WARNING
Components having special characteristics are marked  and
must be replaced with parts having specification equal to those
originally installed.
Tyros 
						

							Tyros/TRS-MS01
3
Sound Source:AW M
Keyboard:
Keys 61 Keys (C1 ~ C6)
Touch Response Initial Touch/Aftertouch
Polyphony:128 Notes max
Voices:
Preset Voices 1185 403 voices (Normal: 393 + Mega: 10) + 10 Organ Flutes
voices
+ 480 XG voices + 256 GM2 voices
+ 31 drum kits (XG and Panel: 22 + GM2: 9) + 5 SFX kits
User Voices Maximum number is unlimited; de- Created data can be saved to the USER/FD/HD drive.
(created with Sound pends solely on the capacity of the
Creator function) USER/FD/HD drives. *
Custom Voices Normal Voice: 128 max Maximum number varies according to the type of voice created and
the way in which it was created or edited. For example, if only Live!
GrandPiano voices are saved as Custom voices, up to 94 voices can
be saved.
Drum Voice: 10 max Maximum number varies according to the type of voice created and
the way in which it was created or edited. For example, if only Live!
StandardKit voices are saved as Custom voices, up to 10 voices can
be saved.
Organ Flutes 10 Preset Created data can be saved to USER/FD/HD drive.
Orchestration:
Upper 3 parts RIGHT1, RIGHT2, RIGHT3
Lower 1 parts Includes LEFT HOLD function.
Split Point (Left) F#2 Can be set and memorized.
Split Point (Style) F#2 Can be set and memorized.
Effects:
Reverb 34 Preset + 3 User 1 block; parameters including depth can be edited.
Chorus 26 Preset + 3 User 1 block; parameters including depth can be edited.
DSP Effect 183 Preset + 3 User 1 block for style and song; parameters including depth can be edited.
DSP Effects 183 Preset + 10 User 4 blocks for RIGHT1, 2, 3, and LEFT; parameters including depth
can be edited.
DSP Effect 183 Preset + 10 User 1 block for microphone; parameters including depth can be edited.
DSP Variation (Available) 4 blocks for RIGHT1, 2, 3, and LEFT
Poly/Mono (Available) When set to MONO, the Portamento Time can be set.
Vocal Harmony 60 Preset + 10 User 3 notes polyphony; parameters including balance can be edited.
Microphone Effect Noise Gate x 1, Compressor x 1,
3 Band EQ x 1
Harmony/Echo 17 Preset
Master EQ 5 Preset + 2 User 5 Band
Part EQ 29 parts 2 Band, 29 parts (RIGHT1, RIGHT2, RIGHT3, LEFT, STYLE x 8,
SONG x 16, M.PAD)
Master Compressor 5 Preset + 5 User 3 Band. Type, Threshold, and Gain (3 Band) can be set.
Touch Response 5 Preset
Tempo 5 ~ 500
Transpose -12 ~ 0 ~ 12 Can be set independently for Keyboard, Song, and Master.
Tune 414.8 ~ 440 ~ 466.8Hz Set in 0.2Hz units. A3 is set to 440Hz as default.
Upper Octave -1, 0, +1
Part Octave -2, -1, 0, +1, +2
Pitch Bend Wheel (Available)
Modulation Wheel (Available)
Style:
Preset Styles 300 Assigned to 10 category buttons
User Styles Maximum number is unlimited; de- Created data can be saved to the USER/FD/HD drive.
pends solely on the capacity of the
USER/FD/HD drives. *
Style selection Can be switched between PRESET When USER/DISK is turned ON, the path can be set to
and USER/DISK each of 10 category buttons.
Data Format Style File Format Up to 120 Kbytes per style
Controls INTRO x 3
FILL IN x 4
BREAK x 1
MAIN x 4
ENDING x 3 Includes ritardando (rit.) function
FADE IN/OUT
TAP TEMPO
Fingered Mode Single Finger, Multi Finger, Fingered, On Bass, Full Keyboard, AI
Fingered, AI Full Keyboard  (created with Voice Editor
software)
 SPECIFICATIONS (Tyros) 
						

							Tyros / TRS-MS01
4
One Touch Setting:4 setups per style ProgrammableMusic Finder:1446 Records Programmable up to 2500 Records.
Multi Pad:
Control PAD 1/2/3/4, STOP
Bank Maximum number is unlimited; de- Created data can be saved to the USER/FD/HD drive.
pends solely on the capacity of the
USER/FD/HD drives. *
Song:
Playback method Disk Direct playback Includes Quick Start function
Selection controls I/II/III/IV/V/VI Includes Chain playback, Random playback, and the reservation
of next song (NEXT/CANCEL) function.
Playback controls SP1/SP2/SP3/SP4/LOOP Up to 4 song positions can be set and used for Jump/Loop playback.
Maximum number of songs Maximum number is unlimited; de- Created data can be saved to the USER/FD/HD drive.
pends solely on the capacity of the
USER/FD/HD drives. *
Channels 16
Recording capacity Approximately 35,000 notes max. Recording methods: Quick Record, Multi Track Record, Step
Record, Chord Step
Registration Memeory:8 buttons Includes Freeze function. Created data can be saved to the USER/FD/
HD drive.Language:6 languages English, German, French, Spanish, Italian, Japanese
Display:Backlit Graphic LCD 7.8 inch, 640 x 480 dot
Lyrics (Available) XF, TUNE1000
Lyrics (others) (Available) KAR, M-Live
Score (Available) SMF
File Selection type Direct Selection/Number Input Voices, styles, songs, Multi Pad banks, Registration Memory banks
can be selected.
Disk:
Compatible format XG, XF, GM, GM Level2, SMF, DOC, Piano Player (ESEQ), Style File Format (SFF)
User drive 3.3 MB Up to 250 files/folders can be created in one folder.
Floppy disk 3.5 2HD/2DD Up to 250 files/folders can be created in one folder. Floppy disk ca-
pacity (root directory): up to 224 files/folders for 2HD, up to 112
files/folders for 2DD.
Hard disk 2.5-inch HD (optional) Up to 250 files/folders can be created in one folder.Demonstrations:6 languages English, German, French, Spanish, Italian, JapaneseHelp:6 languages English, German, French, Spanish, Italian, Japanese
Connectors:
MIDI MIDI A  (IN/OUT)
MIDI B (IN/OUT)
Controls FOOT PEDAL 1/2/3 Assignable; default settings are 1: Sustain, 2: DSP Variation, 3:
Volume.
USB USB Slave x 1 USB Ver. 1.1
Video Out NTSC/PAL Composite Signal The current LCD contents or the Lyrics of the current song can
be displayed on an external video monitor.
Audio (Analog) PHONES
LOOP SEND (L/L+R, R)
LINE OUT MAIN (L/L+R, R), SUB (1/2)
AUX IN/LOOP RETURN (L/L+R, R),
TRIM VOL
TO SUB WOOFER L/R
TO LEFT/RIGHT SPEAKER
MIC/LINE IN Includes TRIM and INPUT VOLUME controls, and SIGNAL/OVER
indicator. A standard dynamic microphone with an impedance of about
250 ohms is recommended.
Power Supply AC Inlet Power consumption: 45WDimensions:1140 (L) x 428 (D) x 137 (H) mm Not including the music rest, speakers and brackets.Weight:12.4 kg
Packing List:
AC power cord x 1
Music rest and brackets
CD-ROM
Owner’s Manual, Data List, Installation Guide
USB cable
Optional Accessories:
Speaker TRS-MS01
Foot Switch FC4/5
Foot Controller FC7
Headphones HPE-150/HPE-160
Keyboard Stand L-7/L-7S
Bench BC-6
Hard Disk 2.5-inch IDE Height 12.7 mm max., 40 GB max. (current availability; support for
up to 137 GB) 
						

							Tyros/TRS-MS01
5
 SPECIFICATIONS (TRS-MS01)
Type Advanced Active  Servo Technology
Output power Satellite speakers ..................... 20 W + 20 W
(1 kHz, 4   a t T.H.D.=10%)
Subwoofer ............................... 40 W (100 Hz, 5   a t T.H.D.=10%)
Frequency response 32 Hz to 20 kHz
Speaker unit Satellite speakers
Tweeter .................................... 1.9 cm (3/4") dome, magnetic shielding
Midrange ................................. 8 cm (3") cone, magnetic shielding
Subwoofer ............................... 16 cm (6.5") cone, magnetic shielding
Power consumption 65W
Power supply U.S.A. and Canada models ..... AC 120 V, 60 Hz
Australia model ....................... AC 240 V, 50 Hz
U.K. and Europe models ......... AC 230 V, 50 Hz
Dimensions (W x H x D) Satellite speakers ..................... 97 (3.8") x 174 (6.9") x 178 (7") mm
Subwoofer ............................... 350 (13.8") x 210 (8.3") x 321 (12.6") mm
Weight Satellite speakers ..................... 0.7 kg (1 lb. 9 oz.) x 2
Subwoofer ............................... 8.0 kg (17 lbs. 10 oz.)
Accessories Speaker brackets x 2, RCA pin cables x 2,
RCA pin/8-pin combination cable x 1 
						

							Tyros / TRS-MS01
6
 
TAP TEMPO
REGISTRATIO
FADE
IN / OUTREC TOP REW FFLOOP
AU TO
FILL IN OTS 
LINK
ACMP
INTRO MAIN VARIATION BREAK ENDING / rit.
SYNC
STOPSYNC
START
METRONOMEMASTER VOLUME
MAX
MAX
INPUT VOLUME
FREEZE
TALK EFFECTVOCAL
HARMONYMIC
SETTING VH TYPE
SELECT
TRANSPOSE TEMPOSTOP
RESET
1234
MIC
STYLE CONTROL
SONG CONTROL
REGIST.
BANK
MIXING 
CONSOLEBALANCE
CHANNEL
ON / OFF
MIN
MIN
OVER SIGNALMIC / LINE IN
SONGPOWERON /    OFF
RESETPART PART
A
B
C
D
E
DIRECT
ACCESS
1234
LCD CONTRAST
PITCH BEND MODULATIONUP MAX
MIN DOWN
PHONES
STYLE
SP1SP2SP3
START/
STOP
SYNC START
NEW SONGSTART/
STOP
SP4
MULTI PAD CONTROL
START /
STOP
PRESET
USER / DISK
q
e
w
#2#3
rui
t
y
!0!1!2!3!4
!6
!7
!8
!5
o
PHONES
POP & ROCK
BALLAD
DANCER&B
COUNTRY
MOVIE & SHOW
LATINSWING & JAZZWORLD
BALLROOM
PA R T Y
#4
#5
#6 #8

 PANEL LAYOUT (Tyros)
 Front Panel
qPOWER ON/OFF switch
wMASTER VOLUME  control
eINPUT VOLUME  control
rMIC buttons
tSONG CONTROL buttons
yFADE IN/OUT buttons
uSONG buttons
iSTYLE buttons
oSTYLE CONTROL buttons
!0METRONOME button!1TAP button
!2TEMPO button
!3TRANSPOSE button
!4MULTI PAD buttons
!5MIXING CONSOLE button
!6BALANCE button
!7CHANNEL ON/OFF button
!8REGISTRATION MEMORY buttons
!9DEMO button
@0HELP button 
						

							Tyros / TRS-MS01
7
LEFTLEFT HOLDRIGHT1 RIGHT2 RIGHT3STRINGS TRUMPET
CHOIR SAXOPHONE
SYNTHGUIDE
GUITAR
BASS
BRASS PIANO
E.PIANO
ORGAN
UPPER OCTAVE
DATA ENTRY
PART ON / OFFPART SELECT
ENTER
DSPDSP 
VA R I AT I O N POLY/
MONO INITIAL
TOUCH
UPPER
SUSTAIN
LOWERMEMORY
TION MEMORY
HELP FUNCTIONDIGITAL
RECORDING SOUND
CREATOR
SONG
STYLE
MULTI PAD
DISK IN USE
5678
USER
ORGAN
FLUTES
CUSTOM
VO I C E
VOICE EFFECT
MENUDEMOACCORDION
PA D
PERC. /
DRUM KIT FLUTE /
CLARINET PROGRAMMABLE
ONE TOUCH  SETTING
VOICE
RESET
BACK NEXT
F
G
H
I
J
EXIT
5678PROGRAMMABLEMUSIC FINDER
HARMONY/
ECHO
!9@0@1@2@3
@4@5
@7
@8#0#1
@9
@6
#5
#9
$0
$1 #6#7
@1FUNCTION button
@2SOUND CREATOR button
@3DIGITAL RECORDING button
@4PROGRAMMABLE MUSIC FINDER button
@5PROGRAMMABLE ONE TOUCH SETTING buttons
@6VOICE buttons
@7PART SELECT buttons
@8PART ON/OFF buttons
@9VOICE EFFECT buttons
#0UPPER OCTAVE buttons#1GUIDE button
#2PITCH BEND wheel
#3MODULATION wheel
#4LCD CONTRAST
#5LCD A-J  Buttons
#6LCD 1-8 Buttons
#7BACK / NEXT Buttons
#8DIRECT ACCESS  Button
#9EXIT Button
$0DATA ENTRY Dial
$1ENTER Button 
						

							Tyros / TRS-MS01
8
 Rear Panel
3 1 2 OUTIN OUTINVIDEO OUTNTSC / PALUSB MIDI AMIDI BASSIGNABLE FOOT PEDAL(VOLUME) (DSP VARIATION) (SUSTAIN)TO RIGHT SPEAKER
1 2INPUTAC  INLET MIC / LINE INL / L+R RMAINSUBLINE OUTL / L+R RLOOP SENDTRIMMIN MAXL / L+R RAUX IN / LOOP RETURNTRIMMIN MAXTO LEFT SPEAKERTO SUB 
WOOFERL RL / L+R RLOOP SEND
q
o !0 !1!2!3 !4!5!6 !7 !8!9 @0 @1wer t y u i
qTO RIGHT SPEAKER jack
wASSIGNABLE FOOT PEDAL [SUSTAIN] jack
eASSIGNABLE FOOT PEDAL [DSP VARIATION] jack
rASSIGNABLE FOOT PEDAL [VOLUME] jack
tMIDI A [IN], [OUT] jack
yMIDI B [IN], [OUT] jack
uVIDEO OUT jack
iUSB jack (to PC)
oLINE OUT SUB [1], [2] jack
!0LINE OUT MAIN [R], [L/L+R] jack!1AUX IN / LOOP RETURN TRIM control
!2AUX IN / LOOP RETURN [R] jack
!3AUX IN / LOOP RETURN [L/L+R] jack
!4LOOP SEND [R] jack
!5LOOP SEND [L/L+R] jack
!6MIC / LINE IN INPUT jack
!7MIC / LINE IN INPUT TRIM control
!8TO SUB WOOFER [R] jack
!9TO SUB WOOFER [L] jack
@0AC INLET
@1TO LEFT SPEAKER jack 
						

							Tyros / TRS-MS01
9

 PANEL LAYOUT (TRS-MS01)
POWERED MONITOR SPEAKERS TYROS-MS
q
L
RTO KEYBOARD
e w
r
POWERD MONITOR
SPEAKERS
POWERD MONITOR SPEAKERS
MODEL NO.TRS-MS
TO
KEYBOARD
 SUB WOOFER
 Satellite Speaker
qBASS Control knob
wPOWER ON/OFF Switch
eTO KEYBOARD L, R Jack (WOOFER)
rTO KEYBOARD Jack (Satellite) 
						

							Tyros / TRS-MS01
10

 CIRCUIT BOARD LAYOUT (Tyros)
[660][310][340][390][330]
[260][D][C][270][360]
[420][A][B][400], [410]
[325][365][320][380][300]
[650]
[660][280][290][350][370]
AJACK
INLET
MICVRSUB
SPOUTLSPOUTR
MICVRSUB
DJACK
DM
PHONES
REG
EMKS-N
61L61H
61L61H
61L61H
PC
Power Supply
Unit
 Lower Case Side