Yamaha PSR-E473 User manual

SERVICE MANUAL
PSR-E473
PK 001998 -A0
2022.01 © 2021 Yamaha Corporation.
nCONTENTS
SPECIFICATIONS................................................................................... 3
PANEL LAYOUT ..................................................................................... 5
DISASSEMBLY PROCEDURE ............................................................... 8
Disassembling the keyboard (time required: About 13 minutes)........... 14
BACKUP................................................................................................ 16
INITIALIZATION .................................................................................... 17
INSPECTIONS ...................................................................................... 18
APPENDIX ............................................................................................ 29
CIRCUIT BOARDS................................................................................ 31
BLOCK DIAGRAM
CIRCUIT BOARD LAYOUT WIRING
OVERALL CIRCUIT DIAGRAM
PARTS LIST

PSR-E473
2
1
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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 specically 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 specied. 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 rm does not constitute authorization certication,
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. Modications are, therefore, inevitable and changesin
specication are subject to change without notice or obligation to retrot. 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 tothe ground bus in the unit (heavy gauge black wires connect tothis bus.)
IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power tothe unit.
WARNING
Components having special characteristics are marked and must be replaced with parts having specication equal to those
originally installed.
Be sure to
perform it
Saving and backing up your data
Some data items are automatically saved as backup data in the internal memory even if you turn the power off. Saved
data may be lost due to malfunction or incorrect operation. Save important data to external device such as a computer.
SAVING DATA
2.SERVICE MANUAL

PSR-E473
3
nSPECIFICATIONS
Product Name Digital Keyboard
Size/Weight
Dimensions (W x D x H) 992 mm × 404 mm × 136 mm
(39-1/16” x 15-7/8” x 5-3/8”)
Weight 7.0 kg (15 lbs., 7 oz.)
(not including batteries)
Control
Interface
Keyboard 16syeKforebmuN
dexiF,draH,muideM,tfoSesnopseRhcuoT
Other
Controllers
seYleehWdneBhctiP
2sbonK
hsilgnEegaugnaLlenaP
Voices
Tone
Generation
Tone Generation
TechnologyAWM Stereo Sampling
46).xam(ynohpyloP
Preset Number of Voices
820
(294 Panel Voices + 28 Drum/SFX kits
+ 40 Arpeggio + 458 XGlite Voices)
etilGX,MGytilibitapmoC
EffectsTypes
21breveR
5surohC
4QEretsaM
DSP DSP1:41
DSP2:12
Accompani-
ment Styles
Preset
092selytSforebmuN
drohCtramS,regnifitluMgniregniF
Style Control ACMP ON/OFF, SYNC START, SYNC STOP, START/STOP,
INTRO/ENDING/rit., MAIN/AUTO FILL, TRACK ON/OFF
01selytSlanretxE
Other
Features
One Touch Setting
(OTS)Yes
)FFS(tamroFeliFelytSytilibitapmoC
Groove
Creator Preset 53sevoorGforebmuN
Number of Sections 5 (4 Sections + 1 Musical Climax/Ending)
Songs
(MIDI)
Preset Number of Preset
Songs30
Recording
01sgnoSforebmuN
)rotaerCevoorG/elytS1+ydoleM5(6skcarTforebmuN
Data Capacity Approx. 19,000 notes (when only “melody” tracks are recorded)
Format )1&0stamroF(FMSkcabyalP
)noitcnufnoisrevnoc0FMS(tamroFeliFlanigirOgnidroceR
USB Audio
Recorder
gnoSrep)BG9.0.xorppa(setunim08).xam(emiTgnidroceR
Format )oerets,tib61,zHk1.
44(VAWkcabyalP
)oerets,tib61,zHk1.44(VAWgnidroceR
Quick
Sampling
pooL,tohsenOepyTgnilpmaS
4)resU/teserP(selpmaS
ces6.9.xorppAemiTgnilpmaS
seliftamrofVAW,ecafretnioiduaBSU,TUPNICIM,NIXUAsecruoSgnilpmaS
)oerets,tib61(tamroFeliFlanigirOtamroFgnilpmaS
zHk1.44etaRgnilpmaS
Functions Voices
seYlauD
seYtilpS
62ynomraH
251oiggeprA
seYnoitalucitrA

PSR-E473
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Functions
Registration
Memory
)sknab8x(4snottuBforebmuN
ezeerFlortnoC
Overall
Controls
seYemonorteM
082–11egnaRopmeT
21+ot0,0ot21-esopsnarT
)stnemercnizH2.0.xorppa(zH0.354–0.044–0.724gninuT
seYnottuBevatcO
sepyt5epyTelacS
Miscella-
neous
seYnottuBONAIP
seYomeD
seYrosserppuSydoleM
seYedafssorC
oerets,tib61,zHk1.44ecafretnioiduaBSU
75tceffEnoitoM
)Bd6+dna,Bd3+.xorppa(spets2tsooBageM
Storage and
Connectivity
Storage BM27.1.xorppAyromeMlanretnI
evirdhsalfBSUsevirDlanretxE
Connectivity
V21NICD
kcajenohpoeretsdradnatSsenohpdaeH
seYenohporciM
seYladePniatsuS
kcajinimoeretSNIXUA
R,R+L/L:skcajenohpoeretsdradnatSTUPTUO
seYECIVEDOTBSU
seYTSOHOTBSU
Sound
System
W6+W6sreifilpmA
2xmc21srekaepS
Power
Supply
AC Adaptor
PA-150 or an equivalent
recommended by Yamaha
(Output : DC 12V, 1.5 A)
Batteries
Six "AA" size alkaline(LR6),
manganese (R6) or Ni-MH
rechargeable (HR6) batteries
Power Consumption
9 W (When using PA-150 AC adaptor)
seYffOrewoPotuA
Included Accessories
• Owner’s Manual
• AC adaptor* (PA-150 or an equiva-
lent recommended by Yamaha)
* May not be included depending
on your area. Check with your
Yamaha dealer.
• Music Rest
• Online Member Product Registration
Separately Sold Accessories
(May not be available depending on your area.)
• Keyboard Stand: L-2C
• AC adaptor: PA-150 or an equiva-
lent recommended by Yamaha
• Headphones: HPH-150/HPH-100/
HPH-50
• Subwoofer: KS-SW100
• Footswitch: FC4A/FC5
• Wireless MIDI adaptor: UD-BT01

PSR-E473
5
nPANEL LAYOUT
■Front Panel
A D E F G
CB Display
As illustrated, each note of the keyboardhas a specic note numberand name (e.g., 036/C1), which is used in making various
settings, such as Split Point.
A
[ ](Standby/On)switch
[MASTERVOLUME]control
[ARTICULATION]button
About the button names in
(SHIFT function)
While holding down the [SHIFT]button, press the
button to call up the function name in the box.
For example, while holding down the[SHIFT]but-
ton, press the [MIC VOCAL/TALK/MUTE]button
to call up the display.
Press and hold
036
(C1)
048
(C2)
060
(C3)
072
(C4)
084
(C5)
096
(C6)
H
B
[MICVOCAL/TALK/MUTE]button
[MOTIONEFFECT]button
[KNOBASSIGN]button,[A]/[B]knobs
LIVECONTROL
[SPLIT]button
[DUAL]button
[HARMONY/ARPEGGIO]button
SOUNDCONTROL
[DSP2]button
[DEMO]button
[METRONOME]button
[TEMPO/TAP]button
[REC]button
OCTAVE[−][+]buttons
[SHIFT]button
❶
❷
❸
❶❷❸
❻
❺
❾❽
❼ ❿
⓯
⓰
⓮⓭⓬⓫
❹
❿
⓫
⓬
⓭
⓮
⓯
⓰
❹
❺
❻
❼
❽
❾

PSR-E473
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C
[VOICE]button
[STYLE]buttons
[SONG/AUDIO]buttons
[GROOVECREATOR]buttons
Dial
Category/Numberinputbuttons,[EXIT]button,
[ENTER]button
[FUNCTION]button
[PORTABLEGRAND]button
[MEGABOOST]button
D
Playbackcontrolbuttons
E
[TRACKCONTROL]buttons
F
[REGISTRATIONMEMORY]buttons
⓴ ⓱
󱢿
󱣏 󱣐 󱣑 󱣒 󱣓
󱣀󱢾
⓱
⓲
⓳
⓴
󱢾
󱢿
󱣀
󱣁
󱣂
󱣃〜󱣈
󱣉〜󱣎
󱣃
󱣉 󱣊 󱣋 󱣌 󱣍 󱣎
󱣄 󱣅 󱣆 󱣇 󱣈
󱣁 󱣂
⓳ ⓲
G
[A]−[D]pads
[LOOPHOLD]button
[CAPTURE]button
H
[PITCHBEND]wheel
QUICKSAMPLING
󱣏〜󱣓
󱣔〜󱣗
󱣘
󱣙
󱣚
󱣚
󱣘󱣔 󱣕 󱣖 󱣗 󱣙

PSR-E473
7
󱣛 󱣜 󱣝 󱣞 󱣟 󱣠 󱣡 󱣢 󱣣
■RearPanel
[SUSTAIN]jack
OUTPUT[L/L+R]、[R]jacks
[PHONES]jack
[MICINPUT]jack
[GAIN]knob
[AUXIN]jack
[USBTODEVICE]terminal
[USBTOHOST]terminal
DCINjack
󱣛
󱣜
󱣝
󱣞
󱣠
󱣡
󱣢
󱣣
󱣟

PSR-E473
8
nDISASSEMBLY PROCEDURE
Caution:
▪ Be sure to attach the removed filament tape just as it was before removal.
1. Lower Case Assembly (Time required: About 3 minutes)
1. Remove the 8 screws marked [70], the 6 screws marked [75] and the 5 screws marked [80]. The Lower Case Assembly can
then be removed. (Fig.1)
*When installing the lower case assembly, first tighten the screw marked [75A] and then the remaining screws. (Fig.1)
[75]
[80]
[80]
[75]
[70]
[70]
[70]
[70]
[80]
[80]
[75A]
[75]
[80]
[75]
[75]
[A]
[A]
Bottom view
Top view
BATTERY COVER ASSEMBLY
SP GRILLE R ASSEMBLY
ENCODER KNOB
CONTROL KNOB
VOLUME
SP GRILLE L ASSEMBLY
Fig.1

PSR-E473
9
2. DMLCD Circuit Board (Time required: About 6 minutes)
1. Remove the lower case assembly. (See procedure 1)
2. Remove the 13 screws [380A]. The DMLCD circuit board can then be removed. (Fig.2)
*After replacing the DMLCD circuit board, execute "Factory Reset" in the Test program.
[380I] PB
MVR
[380H] [380D] x14 [380A] x13
[380B] [380B] [380B] [380C] [380C]
[380F] x6[380E] x4 [380G] x3
PNL-B PNR-B
AMPN
DMLCD
JACKKNOB
ENC
Bottom view
Fig.2
3. LCD (Time required: About 7 minutes)
1. Remove the lower case assembly. (See procedure 1)
2. Remove the DMLCD circuit board. (See procedure 2)
3. Remove the back light assembly. (Fig.3)
4. Remove the rubber connector. (Fig.3)
5. Remove the LCD display. (Fig.3)
*Avoid touching the conductive part of the rubber connector as much as possible. Should foreign matter or dirt adhere,
remove such contamination using adhesive tape or the like. Do not wipe off using solvents such as benzene or alcohol.
(Fig.3)
DMLCD
LCD display
BACK LIGHT ASSEMBLY
RUBBER CONNECTOR
Fig.3

PSR-E473
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4. PNL-B, PNR-B, AMPN, KNOB, JACK and ENC Circuit Board
1. Remove the lower case assembly. (See procedure 1)
l PNL-B Crcuit Board (Time required: About 6 minutes)
1. Remove the 11 screws [380B]. The PNL-B circuit board can then be removed. (Fig.2)
l PNR-B Crcuit Board (Time required: About 6 minutes)
1. Remove the 10 screws [380C]. The PNR-B circuit board can then be removed. (Fig.2)
l AMPN Crcuit Board (Time required: About 7 minutes)
1. Remove the 14 screws [380D]. The AMPN circuit board can then be removed. (Fig.2)
l KNOB Crcuit Board (Time required: About 5 minutes)
1. Remove the 2 control knobs from the control panel surface. (Fig.1)
2. Remove the 4 screws [380E]. The KNOB circuit board can then be removed. (Fig.2)
l JACK Crcuit Board (Time required: About 6 minutes)
1. Remove the 6 screws [380F]. The JACK circuit board can then be removed. (Fig.2)
l ENC Crcuit Board
1. Remove the encoder knob from the control panel surface. (Fig.1 and Fig.4)
2. Remove the 3 screws [380G]. The ENC circuit board can then be removed. (Fig.2)
ENCODER KNOB
Fig.4