Yamaha 2 User manual

SERVICE MANUAL
HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF ’05.10
PK 001740
CONTENTS
SPECIFICATIONS (Tyros2) ...................................................... 3
SPECIFICATIONS (TRS-MS02) ............................................... 5
PANEL LAYOUT (Tyros2).......................................................... 6
PANEL LAYOUT (TRS-MS02) .................................................. 8
CIRCUIT BOARD LAYOUT ....................................................... 9
DISASSEMBLY PROCEDURE (Tyros2) ................................. 12
DISASSEMBLY PROCEDURE (TRS-MS02) .......................... 24
LSI PIN DESCRIPTION .......................................................... 26
IC BLOCK DIAGRAM.............................................................. 40
CIRCUIT BOARDS ................................................................. 43
TEST PROGRAM ................................................................... 77
SYSTEM RESET .................................................................... 89
OS UPDATE............................................................................ 90
DATA BACKUP........................................................................ 91
MIDI IMPLEMENTATION CHART ........................................... 92
MIDI DATA FORMAT ............................................................... 93
PARTS LIST
BLOCK DIAGRAM
OVERALL CIRCUIT DIAGRAM
MONITOR SPEAKER
TRS-MS02
/
Tyros2
TRS-MS02

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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 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 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 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.
WARNING
Components having special characteristics are marked and
must be replaced with parts having specification equal to those
originally installed.
SAVING DATA
Saving and backing up your data
The data of the types listed below are lost when you turn off the
power to the instrument.
Save the data to the User drive or appropriate external media.

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■ SPECIFICATIONS (Tyros2)
Sound Source AWM Dynamic Stereo Sampling
Keyboard 61 keys (C1
- C6) Initial touch/Aftertouch
LCD Display 640 x 480 dots VGA Color LCD
Music Score, Lyrics Yes
Text Yes
RAM Capacity per a text approx. 60 KB
Wallpaper Customize Yes
Voice Polyphony (max) 128
Voice Selection 504 voices (486 Normal + 18 Mega) + 10 Organ Flute
+ 480 XG voices + 256 GM2 Voices + 23 Drum kits + 6 SFX Kits
(And GS Voices for GS Song playback)
MegaVoices (18 voices)
Small Strings, Large Strings, Brass, Tenor Sax, Trumpet, Nylon Guitar,
Solid Guitar 1/2, Steel Guitar, Hi String Guitar, 12Strings Guitar, Clean
Guitar, Overdrive, Distortion, Acoustic Bass, Finger Bass, Pick Bass,
Fretless Bass
Sweet! Voices (23 voices)
Jazz/Pop/Ballad TenorSax, Growl Sax, Tenor Sax, Alto Sax, Soprano
Sax, Jazz/Silver/Golden Trumpet, Cornet, Trumpet, Mute Trumpet, Flu-
gel Horn, Trombone, Violin, Harmonica, Mandolin, Oboe, Clarinet,
Flute, Pan Flute, Classical Flute
Live! Voices (58 voices)
Dynamic Strings, Spiccato, Dynamic Brass, Power Brass, French Horn,
Sax Section, Dynamic Steel Guitar, Grand Piano, Dynamic Nylon
Guitar, Gospel Choir, etc.
Live! Drums (9 drum kits)
Live! PowerKit 1/2, Live! Studio, Live! Standard 1/2, Live! Brush, Live!
Symphony, Live! PopLatin, Live! Cuban
Cool! Voices (39 voices)
Sparkle Stack, Curved Bars, Slide Solid, Clean Guitar, Jazz Guitar,
Power Lead, etc.
Organ Flutes! 10 presets
Super Articulation Voices (42 voices)
Concert Strings, Tremolo Bowing 1/2, Big Band Brass, Brass Fall f/mf,
Trumpet, Trumpet Shake1/2, Saxophone, Concert Guitar, Flamenco
Guitar, Steel Guitar, Warm Solid, Guitar Hero, Feedbacker, Magic Bell,
etc.
Orchestration Upper Right 1
- 3
Lower Left
Split Left (default point: F#2)
Style (default point: F#2)
Right 3 (default point: G2)
Voice
Expandability
Function Voice setting Editor / Voice Creator with Wave Assign
Pre- Installed Memory size 4 MB
Additional Memory Maximum size 1024 MB (Optional)
Slot 168 pin DIMM x 2
Hard Disk
Recorder
Control PLAY, PAUSE, STOP, REC, PREV, NEXT
Playlist Repeat, Sort, Shuffle, Marking
File format Wave (16-bit, 44.1 kHz, stereo)
Effects Effect Blocks Reverb/Chorus/DSP 6
Microphone 1
Effect Types Reverb/Chorus/DSP
Reverb: 34 presets + 3 users
Chorus: 30 presets + 3 users
DSP Effect For Style: 189 presets + 3 users
DSP Effect For R1/R2/R3/Left: 189 presets + 10 users
DSP Effect For Mic: 189 presets + 10 users
Mic Effects Noise Gate x 1, Compressor x 1, 3Band EQ x 1
Master EQ (5 band)
5 presets + 2 users
Master Compressor 5 presets + 5 users
Part EQ (2 band) 29 Parts (R1, R2, R3, Left, MultiPad, Style x 8, Song x 16)
Poly/Mono ON/OFF
Vocal Harmony 60 presets + 10 users
Harmony/Echo 17 presets
Upper Octave -1, 0, +1
Part Octave -2, -1, 0, +1, +2
Pitch Bend Wheel Available
Modulation Wheel Available

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Accompaniment
Style
Accompaniment Styles 400 (11 categories)
Pro Styles 357
Session Styles 43
MegaVoice Styles (Using by preset styles)
Fingering Single Finger, Fingered, Fingered On Bass, Multi Finger, AI Fingered,
Full Keyboard, AI Full Keyboard
Control Intro x 3, Fill In x 4, Main x 4, Break x 1, Ending x 3, Fade In/Out,
Tap Tempo
Style Creator YES
OTS (One Touch Setting) 4 for Each Style (Programmable)
OTS Link YES
Music Finder Preset 1,835 records
Edit Programmable. Up to 2,500 records.
RAM Capacity per a style approx. 120 KB
Song Preset Songs 5
Control PLAY, PAUSE, STOP, REC, FF, REW
Song Position Jump 4 point / Loop
Tracks 16
Guide Follow Lights, Any Key, Karao-Key, Vocal CueTIME
Performance assistant Technology YES
Recording Quick Recording, Multi Recording, Step Recording, Song Editing
Record Channels 16
RAM Capacity per a song approx. 300 KB
Multi Pad Preset 120
Control Pad 1
- 4, Stop, Select
Tempo 5
- 500, Tap Tempo
Transpose -12
- 0 - 12 (Assignable Keyboard/Song/Master)
Tuning 414.8
- 440 - 466.8 Hz
Internet Direct Connection External Adapter (via USB to DEVICE)
Memory Device Internal Flash Memory for user drive 3.2 MB
Hard Disk Drive (Internal) 2.5-inch IDE (Optional)
Storage devices (via USB to DEVICE) USB Flash Memory, USB Hard Disk Drive, etc.
Registration
Memory
Buttons 8
Control Bank +/-, Regist Sequence, Freeze
Others Demo YES
Language for Display 5 Languages (English, German, French, Spanish, Italian)
Direct Access YES
Scale Type 9 presets
Metronome YES
Terminals USB to HOST YES
USB to DEVICE YES (2 terminals: Front / Back )
MIDI MIDI A (IN/OUT), MIDI B (IN/OUT)
Control Foot Pedal 1 (Sustain) / 2 (S. Articulation) / 3 (Volume)
Function Assignable
Video Out NTSC / PAL Composite
RGB Out YES
Audio PHONES
Main Line Output (L/L+R, R)
Sub Output 1, Sub Output 2
Loop Send (L/L+R, R) / AUX Out (Level Fixed): Selectable
Loop Return (L/L+R, R) / Aux In
MIC / LINE IN (Stereo)
For Option Speaker To Satellite Speaker (L/R), To Sub Woofer (L/R)
Power Supply AC (Inlet)
Dimensions [W x D x H] (with the Music Rest) 1,140 x 450 x 137 mm (1,140 x 536 x 371 mm)
Weight (with the Music Rest) 14.5 kg (15.5 kg)
Optional
Packing List
Accessories
Speaker
AC Power cord X 1
Music rest and brackets
CD-ROM
Owner's Manual, Data List, Installation Guide
Screws for installing the optional hard disk drive
TRS-MS02
Headphones HPE-150/HPE-160/HPE-170
Foot Switch FC4/FC5
Foot Controller FC7
MIDI Foot Controller MFC-10
Floppy Disk Drive UD-FD01
Keyboard Stand L-7/L-7S

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■ SPECIFICATIONS (TRS-MS02)
Type Advanced Active Servo Technology
Output power Satellite speakers....... 20 W + 20 W (1 kHz, 4 Ω
at T.H.D.=10%)
Subwoofer.................. 40 W (100 Hz, 5 Ω
at 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

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■PANEL LAYOUT(Tyros2)
● FRONT PANEL
qPOWER ON/OFF switch
wMASTER VOLUME control
eINPUT VOLUME control
rDEMO button
tMIC/LINE IN buttons
ySONG CONTROL buttons
uFADE IN/OUT buttons
iSONG buttons
oSTYLE buttons
!0 STYLE CONTROL buttons
q
e
w
#1 #2
r
u
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t
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!0
!1 !2 !3 !4
!6
!8!7
!9
!5
o
PHONES
Headphones
#4
#6
#3
#5
!1 METRONOME button
!2 TAP TEMPO button
!3 TEMPO buttons
!4 TRANSPOSE buttons
!5 MULTIPAD CONTROL buttons
!6 BALANCE button
!7 MIXING CONTROL button
!8 CHANNEL ON/OFF button
!9 REGISTRATION MEMORY buttons
@0 PROGRAMMABLE MUSIC FINDER button

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@1 @2
@0
@3
@4
@9 # $0 0
@6
@7
@8
@
#4
#7
5
#5
#8
#9
@1 FUNCTION button
@2 VOICE CREATOR button
@3 DIGITAL RECORDING button
@4 HARD DISK RECORDER buttons
@5 VOICE buttons
@6 PART SELECT buttons
@7 PART ON/OFF buttons
@8 VOICE EFFECT buttons
@9 PROGRAMMABLE ONE TOUCH SETTING buttons
#0 USER OCTAVE buttons
#1 PITCH BEND wheel
#2 MODULATION wheel
#3 LCD CONTRAST
#4 LCD A-J buttons
#5 LCD 1-8 up/down buttons
#6 DIRECT ACCESS button
#7 EXIT button
#8 DATA ENTRY dial
#9 ENTRY button
$0 USB TO DEVICE terminal

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● REAR PANEL
q
wer t y u i o !0
!1 !2 !3 !4 !5 !6 !7 !8 !9 @0 @1 @2 @3
@4
qTO RIGHT SPEAKER jack
wASSIGNABLE FOOT PEDAL [SUSTAIN] jack
eASSIGNABLE FOOT PEDAL [S.ARTICULATION] jack
rASSIGNABLE FOOT PEDAL [VOLUME] jack
tMIDI A [IN],[OUT] jack
yMIDI B [IN],[OUT] jack
uRGB OUT jack
iVIDEO OUT jack
oUSB jack (TO HOST)
!0 USB jack (TO DEVICE)
!1 LINE OUT SUB [1], [2] jack
!2 LINE OUT MAIN [R],[L/L+R] jack
!3 AUX IN / LOOP RETURN TRIM control
!4 AUX IN / LOOP RETURN [R] jack
!5 AUX IN / LOOP RETURN [L/L+R] jack
!6 AUX OUT / LOOP SEND [R] jack
!7 AUX OUT / LOOP SEND [L/L+R] jack
!8 LINE IN / MIC [R] jack
!9 LINE IN / MIC [L/L+R/MIC] jack
@0 LINE IN / MIC TRIM control
@1 TO SUB WOOFER [R] jack
@2 TO SUB WOOFER [L] jack
@3 AC INLET
@4 TO LEFT SPEAKER jack
■PANEL LAYOUT (TRS-MS02)
BASS
100
qr e
SUBWOOFER FRONT SUBWOOFER REAR SATELLITE
SPEAKER REAR
w
qBASS control knob
wMain POWER switch
eTO KEYBOARD L,R jack (WOOFER)
rTO KEYBOARD jack (Satellite)

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■CIRCUIT BOARD LAYOUT
[9] [4] [7]
[3]
[2]
[1]
[5]
[8]
LCD Panel Assembly
LCD Panel Assembly
* The parts with "( )" in "Part No." are not available as spare parts.
No. Location Part No. Connector Discription Remarks
Assembly Source Destination
1 130 WE844800 FFC(LCLR) LCL-CN3 LCR-CN5 9P L=260
2 140 WF761300 FFC(LCD-B) LCL-CN1 DM-CN2 30P L=950
3 150 WG168600 FFC(LCD) LCL-CN2 LCD-CN1 20P L=120
4 160 (WE84640) LC-PWR LCR-CN7 CK-CN92 5P - 2P,3P
LCL-CN8
5 170 WE844700 FFC(PNL-LCL) LCL-CN4 PNL-CN1 8P L=550
6 60 -------- LCD LCD Backlight LCR-CN6
7 LCL-W1 (WG26430) EPB1 LCL circuit board Panel holder
LCD (R side of PNC) GND wire
8 300 (WG26440) EPC1 LCD support stay
PNC circuit board
9 340 (WG26470) EPSS1 LCL circuit board LCD
[6]
LCR
LCL

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HDSB
DJKCK
Power Supply Unit DAC2A
DM
HDSB
SPORAJK
HP
INLETSPOL
Power Switch
PNR
USB
EN PNC
PNL
MICVR
Wheel Assembly
Lower Case Side
Upper Case Side
[8]
[10]
[17]
[23] [24] [19] [7]
[14] [11]
[18] [12]
[9]
[13]
[1]
[26]
[27]
[25][4]
[2] [3]
[15]
[6][5][16]
[21][20][22]
[29]
[28]
[30]
[33]
[37]
[42] [32] [31] [38]
[35]
[34]
[36]
[39][41][40]

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No. Location Part No. Connector Discription Remarks
Assembly Source Destination
30 420 (WG27700) USB-LF USB-CN4 DM-CN901 5P L=600
31 430 (WE84600) PNL-PWR PNL-CN3 CK-CN91 6P L=450
32 440 (WE84650) PNLR PNL-CN5 PNR-CN1 11P L=500
33 450 WF512600 EBUSP-LF PNR-CN2 DM-CN31 7P L=400
34 510 (WE84860) VOL MICVR-CN200 AJK-CN3 11P L=700
35 520 (WE84690) PSW Power switch INLET-CN300 2P L=500
36 WHEEL-70 (WE84700) WHEEL Wheel assembly PNL-CN2 4P L=170
37 900 WG168900 FFC(PNR-PNC) PNC-CN1 PNR-CN3 23P L=140
38 870 (WG26490) EPSS3 PNL circuit board AC lower frame assembly GND wire
39 880 (WG26460) EPLS2 PNL circuit board PNC circuit board GND wire
40 890 (WG26450) EPLS1 PNR circuit board Panel holder GND wire
41 LCL-W1 (WG26430) EPB1 LCL-W1 Panel holder GND wire
LCD frame
42 LCD-300 (WG26440) EPC1 LCD support stay Panel holder GND wire
PNC circuit board
* The parts with "( )" in "Part No." are not available as spare parts.
No. Location Part No. Connector Discription Remarks
Assembly Source Destination
1 300 WF761200 FFC1 HDSB-CN5 DM-CN32 40P L=180
2 310 WE844400 FFC(DAC) DAC2A-CN101 DM-CN406 26P L=70
3 320 WE844500 FFC(AJK) AJK-CN1 DAC2A-CN801 24P L=550
4 330 WE844600 FFC(DJK) DJK-CN10 DM-CN1 17P L=150
5 340 (WE84520) USB(DR) DJK-CN60 DM-CN902 5P L=400
6 350 (WE84530) USB(H) DJK-CN70 DM-CN8 6P L=350
7 360 (WE84540) AJK-PWR Power supply unit-CN3 AJK-CN2 3P L=130
8 AJK-W1 (WE84550) SPL AJK-W1-R/W1-W SPOL-CN303 2P L=250
9 380 (WE84560) SPR SPOR- CN302 AJK-CN5 3P L=1500
10 390 (WE84570) INLET Power supply unit-CN1 INLET-CN301 4,2P L=290
11 400 WE845800 DM-PWR1 Power supply unit-CN2 DM-CN36 7P L=370
12 420 (WE84610) REG-PWR Power supply unit-CN6 HDSB-CN1 2P L=900
13 430 (WE84620) USB-PWR HDSB-CN2 DM-CN35 4P L=160
14 450 (WF50110) CK-PWR Power supply unit-CN5 CK-CN90 5P L=130
15 500 (WE84670) VIDEO DJK-CN80 DM-CN6 12P L=300
16 510 (WF51230) EBUSK-LF EMKS-FD-CN4 DM-CN30 7P L=550
17 520 (WF51240) HP-LF HP-CN100 AJK-CN6 6P L=600
18 570 (WF51250) JKDET-LF AJK-CN7 DM-CN407 5P L=550
19 AJK-W4 (WG23500) EPA1 AC lower frame assembly AJK W3,W4 GND wire
20 650 (WG26480) EPSS2 AC lower frame assembly Shield lower cover GND wire
21 AJK-W2 (WG23510) EPA2 AJK-W2,W10 Shield lower cover GND wire
22 AJK-W6 (WG23520) EPA3 AJK-W6,W9 Shield lower cover GND wire
23 870 (WG26490) EPSS3 Upper case assembly AC lower frame assembly GND wire
24 AJK-W3 (WG23490) EP70 AJK-W3 AC lower frame assembly GND wire
25 HDSB-W2 (WG23480) EP50 HDSB-W2 Shield lower cover GND wire
26 HDSB-W1 (WG23480) EP50 HDSB-W1 Shield lower cover GND wire
27 660 (WG26500) EPPH1 FSX keyboard(MKH)-CN5 Shield lower cover GND wire
28 660 (WG26500) EPPH1 FSX keyboard(MK61L)-CN2 AC lower frame assembly GND wire
29 680 (WG26460) EPLS2 INLET circuit board AC lower frame assembly GND wire
Lower Case Side
Upper Case Side

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■DISASSEMBLY PROCEDURE
CONTENTS
Tyros2
NOTES ............................................................................................................................ 13
Electrical Check After Disassembling ............................................................................. 13
1. Separating the Unit into the Upper Case Assembly and the Lower Case Assembly ... 14
2. DM Circuit Board ............................................................................................................. 14
3. DJK Circuit Board .......................................................................................................... 14
4. DAC2A Circuit Board ..................................................................................................... 14
5-A. 2.5”HDD (Option) ........................................................................................................... 16
5-B. HDSB Circuit Board ....................................................................................................... 16
6. Power Supply Unit .......................................................................................................... 17
7. AJK Circuit Board .......................................................................................................... 17
8. INLET Circuit Board ....................................................................................................... 17
9. CK Circuit Board ............................................................................................................ 17
10. SPOL Circuit Board........................................................................................................ 17
11. SPOR Circuit Board ....................................................................................................... 17
12. HP Circuit Board ............................................................................................................17
13. FSX Keyboard Assembly ................................................................................................ 18
14. White(Black) Key .............................................................................................................18
15. Assembling Whie (Black) key ......................................................................................... 19
16. Rubber Contact ...............................................................................................................19
17. MK61L Circuit Board ...................................................................................................... 19
18. MKH-D,EMKS-FD Circuit Board .................................................................................... 19
19. PNL Circuit Board .......................................................................................................... 20
20. PNR Circuit Board ......................................................................................................... 20
21. PNC and EN Circuit Boards .......................................................................................... 21
21-A. EN Circuit Board ............................................................................................................ 21
21-B. PNC Circuit Board ........................................................................................................... 21
22. MICVR Circuit Board ..................................................................................................... 21
23. USB Circuit Board .......................................................................................................... 21
24. Wheel Assembrly ............................................................................................................ 21
25. Power Switch................................................................................................................... 21
26. LCD Panel Assembly ...................................................................................................... 22
27. Disassembling the LCD Panel Assembly ....................................................................... 23
27a. Gear ................................................................................................................................. 23
27b. Hinge ............................................................................................................................... 23
27c. LCL Circuit Board........................................................................................................... 23
27d. LCR Circuit Board ..........................................................................................................23
27e. LCD.................................................................................................................................. 23
TRS-MS02
1. Grille Assembly ...............................................................................................................24
2. AC Power Cord ............................................................................................................... 24

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(Fig.A1)
(Fig.A3)
NOTES
• When installing the unit, attach the filament tapes and the
cord binders as before.
• Attention : Flat cable (FFC cable)
You can see the contact points from the back side.
Take care not to insert the flat cable into the connector in
the reverse direction. (Fig.A1)
Front surface Back surface
Electrical Check After Disassembling
The DM circuit board is installed upside down, using
some screws.
Also, the DJK and DAC2A circuit boards are installed
under the DM circuit board.
When testing these circuit boards, you can perform the
electrical check by using a test sheet (X7275Z00) and
four connector assemblies supplied as service parts.
(Fig.A2)
The connection procedure is as follows.
A-1 Remove all the screws on the DM circuit board.
A-2 Extend the length of the original connector assem-
blies and the FFC cable by using the test sheet and
the connector assemblies as service parts.
Then, raise the DM circuit board vertically and
check it. (Fig.A3)
* As for the number of pins of the connectors on the
test sheet, it is different from that of the original
cables.
When connecting each original cable to the test
sheet, connect the cable so that the edge of it can
match the edge of the connector. (Fig.A3)
DM
CN406 CN30
CN32
CN36
CONNECTOR JIGS(Cable + Test Sheet)
CN30 VK112300 Connector Assembly + Test Sheet PH-16P
CN32 WE844400 Connector Assembly+ Test Sheet FFC-40P
CN36 WE845800 Connector Assembly + Test Sheet VH-10P
CN406 WF761200 Connector Assembly + Test Sheet FFC-30P
Test Sheet
JIGS(Cable)Original Cable
FFC-40P FFC-30P
(WF761200) (WE844400) (VK112300)(WE845800)
Test Sheet (X7275Z00)
VH-10P Not Used PH-16P
Connector Assembly, FFC Cable
(Fig.A2)

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1. Separating the Unit into the Upper Case
Assembly and the Lower Case Assembly
(Time required: About 3 minutes)
1-1 Remove the twenty one (21) screws marked [120].
(Fig.1)
1-2 Remove the six (6) screws marked [130]. (Fig.1)
1-3 Lay the unit right side up, lift the rear of the upper case
assembly and pull it diagonally downward to remove.
(Fig.2)
* When installing the unit, tighten the six (6) screws
marked [130] first, and then tighten the screws marked
[120].
[120] [120][120]
[130]
[110] [110]
[130]
[120]
[120]
[100A]
HDD Cover
[120]
(Fig.1)
[100]: Bonding Screw 3.0X8 MFZN2B3 (WE997500)
[110]: Truss Head Tapping Screw-B 4.0X12 MFZN2B3 (WF010600)
[120]: Bind Head Tapping Screw-B 4.0X12 MFZN2B3 (WE998600)
[130]: Bind Head Tapping Screw-B 3.0X12 MFZN2B3 (WE998100)
2-2 Remove the thirty one (31) screws marked [240]. The
shield upper cover can then be removed. (Fig.3)
* There are some products for which the shield upper
cover has not been used.
2-3 Remove the four (4) screws marked [610]. The DM
circuit board can then be removed. (Fig.4)
* When installing the shield upper cover, insert the two
projections of the shield lower cover into the positioning
holes of the DM circuit board first. (Fig.4)
3. DJK Circuit Board
(Time required: About 9 minutes)
3-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
3-2 Remove the DM circuit board. (See procedure 2.)
3-3 Remove the three (3) screws marked [530E], the eight
(8) screws marked [540A] and the two (2) hexagonal
locking screws marked [130].
The DJK circuit board can then be removed. (Fig.4,
Fig.5)
4. DAC2 Circuit Board
(Time required: About 8 minutes)
4-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
4-2 Remove the DM circuit board. (See procedure 2.)
4-3 Remove the four (4) screws marked [530E]. The DAC2
circuit board can then be removed. (Fig.5)
(Fig.2)
2. DM Circuit Board
(Time required: About 7 minutes)
2-1 Separate the main into the upper case assembly and the
lower case assembly. (See procedure 1.)

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[240]
[530]
Shield Upper Cover
AC Upper Frame Assembly
[140A][150][140B]
Inlet Lower Box
[540D] [540C] [540B]
[530B]
[530D]Inlet Upper Box
[530A]
[530C]
[540E][130]
[610]
Positioning hole
[540A] [540A][150]
DM
HDSB
SPOL
AC Lower Frame Assembly
Power Supply Unit
SPORAJK
INLET
[140]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
[150]: PW Head Tapping Screw-B 3.0X12 MFZN2W3 (WF002100)
[240]: Bind Head Machine Screw 3.0X8 MFZN2B3 (WE983600)
[530]: Bind Head Tapping Screw-B 3.0X8 MFZN2Y (EP600250)
[530]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
[130]: Hex. Locking Screw HFS-4S-B1W (V6706600)
[150]: Knob (V2300100)
[530]: Bind Head Tapping Screw-B 3.0X8 MFZN2Y (EP600250)
[530]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
[540]: Bind Head Tapping Screw-B 3.0X8 MFZN2B3 (WE774400)
[610]: Bind Head Machine Screw 3.0X8 MFZN2B3 (WE983600)
(Fig.3)
(Fig.4)

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5-A. 2.5" HDD (Option)
(Time required: About 1 minute)
5-A-1 Remove the four (4) screws marked [100A]. The HDD
cover can then be removed. (Fig.1)
5-A-2 Remove the screw marked [100B]. The HDD with the
support can then be removed. (Fig.5A, Fig.5B)
HDSB
DJK [530F] [530E]
[530G]
HP
CK
[530H]
Power Supply Unit
[530H]
DAC2A
[530]: Bind Head Tapping Screw-B 3.0X8 MFZN2Y (EP600250)
[530]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
(Fig.5)
(Fig.5A) (Fig.5B)
5-B. HDSB Circuit Board
(Time required: About 4 minutes)
5-B-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
5-B-2 In case that the HDD has been installed, remove the
HDD first. (See procedure 5-A.)
5-B-3 Remove the four (4) screws marked [530G]. The HDSB
circuit board can then be removed. (Fig.5)
[100B]

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9. CK Circuit Board
(Time required: About 4 minutes)
9-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
9-2 Remove the four (4) screws marked [530H]. The CK
circuit board can then be removed. (Fig.5)
10. SPOL Circuit Board
(Time required: About 4 minutes)
10-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
10-2 Remove the two (2) screw marked [540D]. The SPOL
circuit board can then be removed. (Fig.4)
11. SPOR Circuit Board
(Time required: About 4 minutes)
11-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
11-2 Remove the two (2) screw marked [540E]. The SPOR
circuit board can then be removed. (Fig.4)
12. HP Circuit Board
(Time required: About 4 minutes)
12-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
12-2 Remove the three (3) screws marked [530H]. The HP
circuit board can then be removed. (Fig.5)
[530]
Inlet Upper Box
[540]
INLET
(Fig.6)
6. Power Supply Unit
(Time required: About 6 minutes)
6-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
6-2 Remove the three (3) screws marked [140A] and the
screw marked [150]. The AC upper frame assembly can
then be removed. (Fig.3)
6-3 Remove the six (6) screws marked [530D]. The power
supply unit can then be removed. (Fig.4)
7. AJK Circuit Board
(Time required: About 6 minutes)
7-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
7-2 Remove the four (4) screws marked [530A]. The AC
lower frame cover assembly can then be removed.
(Fig.4)
7-3 Remove the knob(MIC.TRIM) marked [150]. (Fig.4)
7-4 Remove the four (4) screws marked [530B] and the six
(6) screws marked [540B]. The AJK circuit board can
then be removed. (Fig.4)
8. INLET Circuit Board
(Time required: About 6 minutes)
8-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
8-2 Remove the two (2) screws marked [140B]. The inlet
lower box can then be removed. (Fig.3,Fig.4)
8-3 Remove the two (2) screws marked [530C] and the three
(3) screws marked [540C]. The inlet upper box can then
be removed. (Fig.4)
8-4 Remove the screw marked [530] and the two (2) screws
marked [540]. The INLET circuit board can then be
removed. (Fig.6)
* When installing the inlet upper box, tighten the three (3)
screws marked [540C] first, and then tighten the two (2)
screws marked [530C]. (Fig.4)

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13. FSX Keyboard Assembly
(Time required: About 5 minutes)
13-1 Remove the eight (8) screws marked [110]. (See
procedure 1.)
13-2 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
13-3 Remove the five (5) screws marked [530]. The FSX
keyboard assembly can then be removed. (Fig.3)
Key Stopper L
Rubber Contact 13 Keys
(C1
- C2)
C1
[240A] [240B]
C2 C3 C4 C5 C6
MK61L MKH-D
EMKS-FD
C2# C3# C4# C5#
Rubber Contact 12 Keys (LOW)
(C3#
- C4)
Rubber Contact 12 Keys
(C5#
- C6)
[240D][240C]
Key Stopper H Key Stopper FSX 61
Rubber Contact 12 Keys
(C2#
- C3)
Rubber Contact 12 Keys (HIGH)
(C4#
- C5)
Rubber Contact Rubber Contact Rubber Contact Rubber Contact Rubber Contact
13 Keys 12Keys 12Keys (LOW) 12Keys (HIGH) 12 Keys
Application Circuit Board MK61 MK61 MK61 MK61 MKH-D
Remove Key Stopper L L, H L, H H FSX61
Remove Key C1 - C2 C2# - C3 C3# - C4 C4# - C5 C5# - C6
[240]: Bind Head Tapping Screw-P 3.0X16 MFZN2B3 (WE983200)
14. White (Black) Key
14-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
14-2 Depending on the key to be replaced, remove only the
necessary key stopper such as L, H or 61. (Fig.7)
The key stopper L can be removed by the two (2) screws
marked [240A] and the screw marked [240B]. (Fig.7)
The key stopper H can be removed by the screw marked
[240B] and the two (2) screws marked [240C]. (Fig.7)
The key stopper 61 can be removed by the two (2)
screws marked [240D]. (Fig.7)
14-3 White Key
14-3-1 While pressing the white key backward keeping it in a
horizontal position, lift and remove it. (Fig.7A)
* At that time, the key guide cap may come off. Be careful
of it. (Fig.7C)
(Fig.7A)
(Fig.7)
(Fig.7C)
Key Guide Cap
Key Spring

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14-4 Black Key
14-4-1 Remove both adjacent white keys first. (Fig.7A)
14-4-2 While pressing the black key backward keeping it in a
horizontal position, lift and remove it. (Fig.7B)
(Fig.7B)
15. Assembling White (Black) Key
15-1 White Key
15-1-1 While pressing the white key backward keeping it in a
horizontal position, lower and insert it into the frame.
(Fig.7A)
* At that time, do not lower the near side of the white key
too much and take care not to bend the key guide cap.
(Fig.7C)
* Install the black key first, and then install both adjacent
white keys.
15-2 Black Key
15-2-1 Install the black key in the same manner as the white
key. (See procedure 15-1-1.)(Fig.7B)
15-2-2 Install the removed key stoppers L, H and 61. (Fig.7)
16. Rubber Contact
16-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
16-2 Remove the necessary key stopper and the key referring
to the table in Fig.7. (Fig.7)
16-3 Pull and remove the rubber contact. (Fig.9)
* As for the rubber contact, the direction of the installation
is specified. Take care not to install the rubber contact
reversly. (Fig.9)
* When installing the rubber contact, confirm that a dust
does not adhere to the contact points first. Then, push the
rubber contact using the tip of clip and install it. (Fig.7D)
Contact(Long)
Rubber Contact
Contact(Short)
(Fig.9)
(Fig.7D)
17. MK61L Circuit Board
(Time required: About 7 minutes)
17-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
17-2 Remove the key stoppers L and H. (See procedure 14-2.)
17-2 Remove the keys and the key springs from C1 to C4.
(See procedure 14.)
17-3 Remove the thirteen (13) screws marked [250A], and
remove the FFC cable for CN1 from the back side of the
keyboard assembly.
The MK61 circuit board can then be removed. (Fig.8,
Fig.7E)
* When installing the MK61 circuit board, put the circuit
board under the positioning ribs first, and then tighten
the screws. (Fig.8)
* As for the service parts, the rubber contact is not
included in the MK61L circuit board.
When replacing the MK61L circuit board, remove all the
rubber contacts from the circuit board to be replaced, and
install them to new circuit board.
FFC Cable (Fig.7E)
18. MKH-D and EMKS-FD Circuit Boards
(Time required: About 6 minutes)
18-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
18-2 Remove the key stoppers H and 61. (See procedure 14-2.)
18-3 Remove the keys and the key springs from C#4 to C6.
(See procedure 15.)
18-4 Remove the nine (9) screws marked [250B]. (Fig.8)
18-5 Remove the FFC cable (for CN4) from the back side of
the keyboard assembly. The MKH-D and EMKS-FD
circuit boards can then be removed. (Fig.8, Fig.7E)
Rubber Contact

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MKH-D
[250A] [250B]
[250B][250A]
Circuit Board bobber prevention rib
(Fig.8)
* The EMKS-FD circuit board has been soldered to the
MKH-D circuit board by connectors.
When replacing one of them, use a soldering iron.
* MKH-D Circuit Board
When installing the MKH-D circuit board, put the circuit
board under the positioning ribs first, and then tighten
the screws. (Fig.8)
* As for the service parts, the rubber contact is not
included in the MKH-D circuit board.
When replacing the MKH-D circuit board, remove all the
rubber contacts from the circuit board to be replaced, and
install them to new circuit board.
19. PNL Circuit Board
(Time required: About 7 minutes)
19-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
19-2 Remove the four (4) screws marked [480A]. The two
panel holders A can then be removed. (Fig.10)
19-3 Remove the twenty six (26) screws marked [480B]. The
PNL circuit board can then be removed. (Fig.10)
* When installing the PNL circuit board, place the vibra-
tion-proof sheet L in between the circuit board and the
panel buttons.
[480C]
[480C]
Panel Holder B Panel Holder C
[480C] [480E][470]
[480F-A]
[480F]
[480H]
[480D] [480D] [480B] [480B]
[480G]
[480J]
Power Switch
Panel Holder A
[480A]
PNR
USB
PNL
PNCEN
MICVR
[480I]
Wheel Assembly
(Fig.10)
Also, place the protection sheet L on the reverse side of
the circuit board. Then, tighten the screws. (Fig.14)
20. PNR Circuit Board
(Time required: About 7 minutes)
20-1 Separate the unit into the upper case assembly and the
lower case assembly. (See procedure 1.)
20-2 Remove the four (4) screws marked [480C]. The two
panel holders B can then be removed. (Fig.10)
20-3 Remove the twenty six (26) screws marked [480D]. The
PNR circuit board can then be removed. (Fig.10)
* When installing the PNR circuit board, place the
vibration-proof sheet R in between the circuit board and
the panel buttons.
Also, place the protection sheet L on the reverse side of
the circuit board. Then, tighten the screws. (Fig.14)
[A]
(Fig.13)
[250]: Bind Head Tapping Screw-P 3.0X8 MFZN2B3 (WF266600)
[470]: PW Head Tapping Screw-B 3.0X12 MFZN2W3 (WF002100)
[480]: Bind Head Tapping Screw-B 3.0X8 MFZN2Y (EP600250)
[480]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)