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Yamaha Motif 8 Service Manual

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    							11 MOTIF6 / MOTIF7 / MOTIF8
    22 ENTER
    23 SLOT1 ~ 3
    24 BANK
    25 GROUP A ~ H
    26 NUMBER1 ~ 16
    27 CATEGORY SEARCH
    28 SECTION
    29 TRACK SELECT
    30 MUTE
    SF 1SF 2SF 3 SONG SCENE
    SF 4 SF 5
    F1 F2 F3 F4 F6F5
    INFORMATION
    DEC/NO INC/ YES
    EXITENTER
    EXECUTE
    MUSIC
    PRODUCTIONSYNTHESIZERIntegratedSamplingSequencer
    Real-time External Control
    Sur face
    Modular
    Synthesis
    Plug-in
    System
    DRUM KITSFAVORITES
    SLOT 1 SLOT 2 SLOT 3PRE 1PRE 2
    PRE  3
    GMUSER PLG 1PLG  3A. PIANOKEYBOARD
    ORGANGUITAR /
    PLUCKEDBASSSTRINGSBRASS
    REED / PIPE
    SYN LEAD SYN PAD/
    CHOIRSYN COMP CHROMATIC
    PERCUSIONDRUM /
    PERCUSIONSE
    MUSICAL FX COMBIAB
    CD
    E
    FG
    H
    1
    234
    56
    7
    8
    91011
    12
    1314
    1516CATEGORY
    SEARCH
    BANK
    GROUP
    NUMBER
    SECTION
    TRACK
    SELECT
    MUTE
    SOLO
    PLG 2
    COMMON
    ELEMENT / PERF. PART / ZONE 
    						
    							12MOTIF6 / MOTIF7 / MOTIF8
    CAUTION
    POWER
    ONOFFAC
    INLETmLANIOEXPANSIONIOEXPANSION
    CAUTION
    POWER
    ONOFFAC
    INLETmLANIOEXPANSION
    CAUTION
    ATTENTION
    WARNINGRISK OF ELECTRIC SHOCK:RISQUE  DE  CHOC  ÉLECTRIQUE  NE  PAS  OUVRIR.THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.  OPERATION IS SUBJECT TO
    THE FOLLOWING TWO CONDITIONS:
    (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
    (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDINGINTERFERENCE
    THAT MAY CAUSE UNDESIRED OPERATION.THIS CLASS B DEIGITAL APPARATUS COMPLIES WITH CANADIAN ICES-003.
    DU CANADA. CET APPAREIL NUM RIQ UE DE LA CLASSE B EST CONFORME ¸ LA NORME NMB-003TO  REDUCE  THE  RISK  OF  FIRE  OR  ELECTRIC
    SHOCK, DO  NOT  EXPOSE  THIS  PRODUCT  TO  RAIN  OR  MOISTURE.DO NOT OPEN
    mLANIOEXPANSIONPOWER
    ONOFFAC
    INLET
     Rear Panel
    MOTIF6
    MOTIF7
    MOTIF8
    1 POWER
    2 AC INLET
    3 mLAN (mLAN8E) (AIEB2)
    4 OPTICAL OUT
    5 USB
    6 MIDI IN/OUT/THRU
    7 BREATH
    8 FOOT SWITCH
    9 FOOT CONTROLLER1, 2
    10 ASSIGNABLE OUT L, R 
    						
    							13 MOTIF6 / MOTIF7 / MOTIF8
    OPTICAL
    OUTPUT USB THRUMIDI
    BREATHSUSTAIN FOOT
    SWITCHFOOT
    CONTROLLEROUTPUTOUT
    INASSIGNABLE
    OUTPUTASSIGNABLELMONO
    PHONESAD
    INPUT
    GAIN1R L
    RR
    L SCSICARD
    3.3V
    2
    GREEN
    YELLOW
    ORANGE3
    21Plug- in SLOT
    OPTICAL
    OUTPUT
    USBTHRUMIDI
    OUT
    IN
    SCSI
    BREATHSUSTAIN FOOT
    SWITCHFOOT
    CONTROLLER
    ASSIGNABLE1 CARD
    3.3V
    2OUTPUT ASSIGNABLE
    OUTPUTLMONO
    PHONESAD
    INPUT
    GAINRL
    RR
    L
    GREEN
    YELLOW
    ORANGE3
    21Plug- in SLOT
    OPTICAL
    OUTPUTUSBTHRUMIDI
    OUT
    IN
    SCSICARD3.3V
    BREATHSUSTAIN FOOT
    SWITCH
    ASSIGNABLEFOOT
    CONTROLLER1 2OUTPUT ASSIGNABLE
    OUTPUTLMONO
    PHONESRL
    RAD INPUT
    GAINR
    LGREEN
    YELLOW
    ORANGE3
    21Plug- in SLOT
    11 OUTPUT L/MONO, R
    12 PHONES
    13 A/D INPUT (A/D)
    14 GAIN
    15 SCSI
    16 CARD
    17 plug- in SLOT 1, 2, 3 
    						
    							14MOTIF6 / MOTIF7 / MOTIF8
     WIRING
    ROM  ICE
    SIMM
    CN450P
    SIMM
    CN83P
    P. S W
    4PCN6
    4PCN24PCN1
    4P
    INLET
    CN9
    12P 2P10P 11P 8PCN59P
    3P4P CN24
    17PCN16
    2P 5P CN2
    10P
    CN18
    CN6 CN28CN1
    13PCN17
    9P CN26
    11 P CN25
    8P
    10P 13P17PCN3CN1CN2
    5P
    I/F
    4P
    8P 9P
    8P 10P 3PCN2
    40P 26P
    CN8
    40P
    CN14 12P CN7
    2P CN21
    CN12
    4PCN27
    15P
    10P
    2PCN2
    15PCN1CN3
    CN6
    CN5CN4
    CN1
    CN2
    CN3
    CN1
    CN1
    CN1350P
    CN8
    50P
    CN10
    CN20
    CN19
    2PCN8 5P
    CN710P
    CN59P
    CN6
    26P
    CN15
    CN4
    CN3
    26P 15P15P CN115P
    CN2
    10P
    CN3 72P
    72P
    9P
    CN4
    4P CN22 CN23
    4P E-KEY
    CN37P
    50P
    CN5
    15PCN1 15PCN126PCN1
    50PCN9
    CN1
    7P CN29
    CN1
    CN3
    CN4
    CN7
    4P 3P
    4P 3P
    7P
    CN1
    7P CN9
    m-LAN
    AIEB1
    CN52P
    LCD
    PNA
    F-PN
    PNB
    JK
    DM
    PS
    USBSMSCSIPLUG IN1
    Keyboard
    PLUG IN2PLUG IN3
    m-LAN
    WHEEL
    AIBE1
    28C99-8818022  2
    After touch
    After touch
    sensor
    MOTIF6, 7
    MOTIF6, 7
    MOTIF6, 7
    21
    2
    1112
    21
    21
    22
    31
    31
    31
    32
    32
    32
    3
    13
    14
    23
    24
    24
    33
    33
    34
    6
    15
    16
    16
    25
    26
    35
    3636
    7
    7
    17
    17
    18
    1811108
    8
    1213
    27
    27
    28
    28
    37
    38
    37
    38
    9
    29
    29
    132526
    10
    39
    39
    ROM  ICE
    SIMM
    CN450P
    SIMM
    CN83P
    P. S W
    4PCN6
    4PCN24PCN1
    4P
    INLET
    CN9
    12P 2P10P 11P 8PCN59P
    3P4P CN24
    17PCN16
    2P 5P CN2
    10P
    CN18
    CN6 CN28CN1
    13PCN17
    9P CN26
    11 P CN25
    8P
    10P 13P17PCN3CN1CN2
    5P
    I/F
    4P
    8P 9P
    8P 10P 3PCN2
    40P 26P
    CN8
    40P
    CN14 12P CN7
    2P CN21
    CN12
    4PCN27
    15P
    10P
    2PCN2
    15PCN1CN3
    CN6
    CN5CN4
    CN1
    CN2
    CN3
    CN1
    CN1
    CN1350P
    CN8
    50P
    CN10
    CN20
    CN19
    2PCN8 5P
    CN710P
    CN59P
    CN6
    6PCN7
    26P
    CN15
    CN4
    CN3
    26P 15P15P CN115P
    CN2
    10P
    CN3 72P
    72P
    9P
    CN4
    6PCN2
    4P CN22 CN23
    4P E-KEY
    CN37P
    50PCN5
    15PCN1 15PCN126PCN1
    50PCN9
    CN1
    7P CN29
    CN1
    CN3
    CN4
    CN7
    4P 3P
    4P 3P
    7P
    CN1
    7P CN9
    m-LAN
    AIEB1
    CN52P
    LCD
    PNC
    PNA
    F-PN
    PNB
    JK
    DM
    PS
    UDSMSCSIPLUG IN1
    Keyboard
    PLUG IN2PLUG IN3
    m-LAN
    WHEEL
    AIBE1
    28C99-8818022  2
    After touch
    After touch
    sensor
    21
    2
    1112
    21
    21
    22
    31
    31
    31
    32
    32
    32
    3
    13
    14
    23
    24
    24
    33
    33
    34
    6
    15
    16
    16
    25
    26
    35
    7
    7
    17
    17
    18
    1811108
    8
    1213
    27
    27
    28
    28
    37
    38
    37
    38
    9
    9
    9
    29
    29
    132526
    10
    30
    39
    39
    MOTIF8 
    						
    							15 MOTIF6 / MOTIF7 / MOTIF8
    REF NO.PART NO.CONNECTOR ASSEMBLY DESTINATION
    REMARKSMODEL
    1 (VJ98170) 10P-450 DM-CN1 JK-CN4 10P-450MOTIF6, MOTIF7
    1 (VK11550) 10P-600 DM-CN1 JK-CN4 10P-600 MOTIF8
    2 (V644340) 7F-PH5P 550L+X DM-CN2 WHEEL 5P 550L+XMOTIF6, MOTIF7
    2 (V644360) 7F-PH5P 800L+X DM-CN2 WHEEL 5P 800L+X MOTIF8
    3 (VK10800) 8P-350 DM-CN3 JK-CN5 8P-350MOTIF6, MOTIF7
    3 (VK11240) 8P-500 DM-CN3 JK-CN5 8P-500 MOTIF8
    6 (VK11480) 3P-600 DM-CN6 PNB-CN1 3P-600 MOTIF6
    6 (VK11620) 3P-650 DM-CN6 PNB-CN1 3P-650 MOTIF7
    6 (VK11200) 3P-500 DM-CN6 PNB-CN1 3P-500 MOTIF8
    7 (V679310) 12P-600L DM-CN7 LCD-CN1 12P-600L MOTIF6
    7 (V679320) 12P-750L DM-CN7 LCD-CN1 12P-750L MOTIF7
    7 (V679330) 12P-500L DM-CN7 LCD-CN1 12P-500L MOTIF8
    8 -- 26P 300MM P=1.0 DM-CN8 SM-CN1 26P 300MMMOTIF6, MOTIF7
    8 -- 26P 500MM P=1.0 DM-CN8 SM-CN1 26P 500MM MOTIF8
    9 (V644620) KRD-KRD-KRD 7P 650 DM-CN9“E_KEY-CN3, PNA-CN1”7P 650 MOTIF6
    9 (V644630) KRD-KRD-KRD 7P1100 DM-CN9“E_KEY-CN3, PNA-CN1”7P 1100 MOTIF7
    9 (VK10580) 7P-300 DM-CN9 PNA-CN1 7P-300 MOTIF8
    10 (V645390) HIF-HIF 50P 150L DM-CN10 SCSI-CN8 50P 150LMOTIF6, MOTIF7
    10 (V645400) HIF-HIF 50P 300L DM-CN10 SCSI-CN8 50P 300L MOTIF8
    11 (V644750) PH-51004 15P 450L DM-CN11 PLUG_IN1-CN1 15P 450LMOTIF6, MOTIF7
    11 (V678910) PH-51004 15P 200L DM-CN11 PLUG_IN1-CN1 15P 200L MOTIF8
    12 (V678920) PH-51004 15P 450L DM-CN12 PLUG_IN2-CN1 15P 450LMOTIF6, MOTIF7
    12 (V678930) PH-51004 15P 200L DM-CN12 PLUG_IN2-CN1 15P 200L MOTIF8
    13 (V678940) PH-51004 15P 450L DM-CN13 PLUG_IN3-CN1 15P 450LMOTIF6, MOTIF7
    13 (V678950) PH-51004 15P 200L DM-CN13 PLUG_IN3-CN1 15P 200L MOTIF8
    16 (V646650) JWFV-P=1.5-C-17-7 DM-CN16 USB-CN2 17PMOTIF6, MOTIF7, MOTIF8
    17 (V646660) JWFV-P=1.5-C-13-8 DM-CN17 USB-CN1 13PMOTIF6, MOTIF7, MOTIF8
    18 (V646670) JWFV-P=1.5-C-10-10 DM-CN18 USB-CN3 10PMOTIF6, MOTIF7, MOTIF8
    21 (V644840) DM-LCD 2P 300L DM-CN21 LCD 2P 300LMOTIF6, MOTIF8
    21 (V644850) DM-LCD 2P 550L DM-CN21 LCD 2P 550L MOTIF7
    22 (V644890) VH-VH 4P 350L DM-CN22 PS-CN1 4P 350LMOTIF6, MOTIF7
    22 (V644900) VH-VH 4P 500L DM-CN22 PS-CN1 4P 500L MOTIF8
    23 (V644930) XH-XH 4P 150L DM-CN23 PS-CN6 4P 150LMOTIF6, MOTIF7
    23 (V644940) XH-XH 4P 350L DM-CN23 PS-CN6 4P 350L MOTIF8
    24 (V644950) PH-PH 4P 600L(S) DM-CN24 PNA-CN6 4P 600L(S) MOTIF6
    24 (V644960) PH-PH 4P 650L(S) DM-CN24 PNA-CN6 4P 650L(S)MOTIF7, MOTIF8
    25 (V644980) PH-PH 11P 700L(S) DM-CN25 JK-CN3 11P 700L(S)MOTIF6, MOTIF7
    25 (V644990) PH-PH 11P 800L(S) DM-CN25 JK-CN3 11P 800L(S) MOTIF8
    26 (V645020) PH-PH 9P 700L(S) DM-CN26 JK-CN1 9P 700L(S)MOTIF6, MOTIF7
    26 (V645030) PH-PH 9P 800L(S) DM-CN26 JK-CN1 9P 800L(S) MOTIF8
    27 (V645180) VH-VH 4P 700L DM-CN27 PS-CN2 4P 700LMOTIF6, MOTIF7
    27 (V645190) VH-VH 4P 750L DM-CN27 PS-CN2 4P 750L MOTIF8
    28 (VK11060) 2P-450 DM-CN28 PNA-CN8 2P-450MOTIF6, MOTIF7
    28 (VK10930) 2P-400 DM-CN28 PNA-CN8 2P-400 MOTIF8
    29 (V645040) PH-PH 5P 200L(S) JK-CN2 PNA-CN7 5P 200L(S)MOTIF6, MOTIF7
    29 (V645050) PH-PH 5P 300L(S) JK-CN2 PNA-CN7 5P 300L(S) MOTIF8
    30 (VJ98090) PNA-CN2 PNC-CN7 6P MOTIF6
    30 VJ981200 PNA-CN2 PNC-CN7 6P MOTIF7
    31 (V645090) KRD-KRD-KRD 10P650 PNA-CN3“PNB-CN2, F_PN-CN5”10P 650MOTIF6, MOTIF7
    31 (V645100) KRD-KRD-KRD 10P750 PNA-CN3“PNB-CN2, F_PN-CN5”10P 750 MOTIF8
    32 (V645110) KRD-KRD-KRD 9P 550 PNA-CN4“PNB-CN3, F_PN-CN6”9P 550MOTIF6, MOTIF7
    32 (V645120) KRD-KRD-KRD 9P 650 PNA-CN4“PNB-CN3, F_PN-CN6”9P 650 MOTIF8
    33 (VK11110) 8P-450 PNA-CN5 PNB-CN4 8P-450MOTIF6, MOTIF7
    33 (VK10590) 8P-300 PNA-CN5 PNB-CN4 8P-300 MOTIF8
    34 (V645130) ACIN3P-2F+1 PS-CN9 AC-IN 4PMOTIF6, MOTIF7
    34 (V645140) ACIN3P-2F+1 PS-CN9 AC-IN 4P MOTIF8
    35 (V645150) 3P 200L PS-CN8 P_SW 3PMOTIF6, MOTIF7
    35 (V718930) 3P 250L PS-CN8 P_SW 3P 250L MOTIF8
    36 (VK11670) 7P-650 DM-CN29 E_KEY-CN3 7P-650 MOTIF8
    37 (V698030) VH-VH 4P 400L PS-CN4 AIEB1-CN1 4P 400LMOTIF6, MOTIF7
    37 (V698040) VH-VH 4P 550L PS-CN4 AIEB1-CN1 4P 550L MOTIF8
    38 (V698050) VH-VH 3P 400L PS-CN7 AIEB1-CN3 3P 400LMOTIF6, MOTIF7
    38 (V698060) VH-VH 3P 550L PS-CN7 AIEB1-CN3 3P 550L MOTIF8
    39 (V791040) PNA-PS5 PS-CN5 PNA 2P
    MOTIF6, MOTIF7, MOTIF8
    Parts in parentheses are not supplied as the replacement parts. 
    						
    							16MOTIF6 / MOTIF7
     DISASSEMBLY PROCEDURE (MOTIF6, MOTIF7)
    Note: As the unit is very heavy, take great care
    when lifting it up.
    When disassembling, turn the unit upside
    down and put two wooden bolsters under
    the unit at its both side ends.
    Put gloves on to avoid to injure your
    hands with edges of the circuit boards or
    the frames.
    When reassembling, take care not to pinch
    the cables between the circuit boards and
    the frames.
    1. Bottom Assembly
    (Time required: about 4 minutes)
    1-1. Remove the seven (7) screws marked [122]. The
    cover plate can then be removed. (Fig. 1)
    1-2. Unlatch the code holder and remove the wires
    from it. (Fig. 1-1)
    1-3. Remove the thirty-two (32) screws (the thirty-four
    screws as for MOTIF 7) marked [112]. (Fig. 1)
    [122] [112] [112]
    [112] [112]Bottom Assembly
    Cover Plate 
    [112] Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)
    [122] Bonding Tapping Screw-S 3.0X6 MFZN2BL (V7451800)
    (Fig.1)
    Push Pull up
    (Fig.1-1) 
    						
    							17 MOTIF6 / MOTIF7
    1-4. Turn the bottom cover forward to turn up, and pull
    it down to remove. (Fig. 2)
     Note: When reinstalling the bottom assembly, insert the
    bottom cover with a slope and turn it backward to
    get down, following the procedure 1-4 in reverse.
    (Fig. 3)
    2. UD Circuit Board (Time required: about 5 minutes)
    2-1. Remove the bottom assembly. (See Procedure 1)
    2-2. Remove the two (2) screws marked [312a]. The
    UD circuit board can then be removed. (Fig. 4)
    UD
    DM
    JK
    PS
    [312a] [312b] [94][94] [62] [72]
    [24] [94] [104a][104b]
    [302] [102]
    [34]
    AC-IN Connector
    PSW Assembly
    Front Rail
    MK Support RMK Support L
    (Fig.2) (Fig.3)
    [24] Bonding Tapping Screw-B   3.0X10  MFZN2BL (VQ049800)
    [34] Bonding Tapping Screw-B   3.0X10  MFZN2BL (VQ049800)
    [62] Bind Head Tapping Screw-B 3.0X6   MFZN2BL (EP600230)
    [72] Bind Head Tapping Screw-B 3.0X6   MFZN2BL (EP600230)
    [94] Bonding Tapping Screw-B   3.0X10  MFZN2BL (VQ049800)
    [102] Bind Head Tapping Screw-B 3.0X6   MFZN2BL (EP600230)
    [104] Bonding Tapping Screw-B   3.0X10  MFZN2BL (VQ049800)
    [302] Bind Head Tapping Screw-B 3.0X6   MFZN2BL (EP600230)
    [312a] Bonding Tapping Screw-B   3.0X10  MFZN2BL (VQ049800)
    (Fig.4)
    Battery
    Battery holderBattery VS246400VS246300 (Battery holder for VS246400)
    Notice for back-up battery removal
    push the battery as shown in figure,
    then the battery will pop up.
    Druk de batterij naar beneden zoals
    aangeven in de tekening, de batterij
    springt dan naar voren. 
    						
    							18MOTIF6 / MOTIF7
    DM Shield Side Panel L Assembly
    Side Panel R Assembly
      FS Keyboard Assembly
    [92] [52] [42][52]
    [32]
    [22]
    3 DM Circuit board (Time required: about 7 minutes)
    3-1. Remove the bottom assembly. (See Procedure 1)
    3-2. Remove the UD circuit board. (See Procedure 2)
    3-3. Remove the ten (10) screws marked [302]. The
    DM circuit board can then be removed. (Fig. 4)
    4. JK Circuit Board (Time required: about 5 minutes)
    4-1. Remove the bottom assembly. (See Procedure 1)
    4-2. Remove the eight (8) screws marked [312b]. The
    JK circuit board can then be removed. (Fig. 4)
    5. SCSI Circuit Board (Time required: about 6 minutes)
    5-1. Remove the bottom assembly. (See Procedure 1)
    5-2. Remove the JK circuit board. (See procedure 4)
    5-3. Remove the two (2) screws marked [82]. The SCSI
    circuit board can then be removed. (Fig. 5, Fig. 6)
    6. Smart Media Assembly (Time required: about 6
    minutes)
    6-1. Remove the bottom assembly. (See Procedure 1)
    6-2. Remove the JK circuit board. (See procedure 4).
    6-3. Remove the two (2) screws marked [72]. The smart
    media assembly can then be removed. (Fig. 5, Fig. 6)(Fig.5)
    [22] Bind Head Tapping Screw-B 3.0X6   MFZN2BL (EP600230)
    [32] Bind Head Tapping Screw-B 3.0X6   MFZN2BL (EP600230)
    [42] Bind Head Tapping Screw-B 3.0X8   MFZN2BL (EP600190)
    [52] Bind Head Tapping Screw-B 3.0X6   MFZN2BL (EP600230)
    [92] Bind Head Tapping Screw-B 3.0X6   MFZN2BL (EP600230) 
    						
    							19 MOTIF6 / MOTIF7
    7. Power Supply Assembly
    (Time required: about 5 minutes)
    7-1. Remove the bottom assembly. (See Procedure 1)
    7-2.Remove the five (5) screws marked [102]. The power
    supply assembly can then be removed. (Fig. 4)
    8. Power Switch Assembly (Time required: about 5 minutes)
    8-1. Remove the bottom assembly. (See Procedure 1)
    8-2. Remove the two (2) screws marked [104a]. The
    power switch assembly can then be removed. (Fig. 4)
    9. AC-IN Connector
    9-1. Remove the bottom assembly. (See Procedure 1)
    9-2. Remove the two (2) screws marked [104b]. The
    AC-IN connector can then be removed. (Fig. 4)
    10. Keyboard Assembly
    (Time required: about 12 minutes)
    10-1. Remove the bottom assembly. (See Procedure 1)
    10-2. Remove the UD circuit board. (See Procedure 2)
    10-3. Remove the DM circuit board. (See Procedure 3)
    10-4. Remove the five (5) screws (the seven screws as
    for MOTIF 7) marked [92] and the two (2) screws
    marked [94]. The DM shield assembly can then be
    removed. (Fig. 4, Fig. 5)
    10-5. Remove the seven (7) screws (the nine screws as
    for MOTIF 7) marked [94]. The front rail can then
    be removed. (Fig. 4)
    10-6. Remove the six (6) screws (the seven screws as for
    MOTIF 7) marked [72]. The MK support R can
    then be removed. (Fig. 4)
    10-7. Remove the five (5) screws (the six screws as for
    MOTIF 7) marked [62]. The MK support L can
    then be removed. (Fig. 4)
    [82] [72]SCSI Circuit Board
    Control Panel Assembly Smart Media Assembly
    (Fig.6)
    [72] Bind Head Tapping Screw-B 3.0X8   MFZN2BL (EP600190)
    [82] Bind Head Screw 2.6X6  MFZN2BL (EG32022) 
    						
    							20MOTIF6 / MOTIF7
    10-8. Remove the four (4) screws marked [52]. The MK
    side angle and the keyboard assembly can then be
    removed. (Fig. 5)
    Slide the keyboard assembly forward to remove.
    11. PNA Circuit Board
    (Time required: about 16 minutes)
    11-1. Remove the bottom assembly. (See Procedure 1)
    11-2. Remove the UD circuit board. (See Procedure 2)
    11-3. Remove the DM circuit board. (See Procedure 3)
    11-4. Remove the DM shield assembly. (See procedure
    10-4)
    11-5. Remove the JK circuit board. (See procedure 4)
    11-6. Remove the SCSI circuit board. (See procedure 5)
    11-7. Remove the keyboard assembly. (See procedure
    10)
    11-8. Remove the four (4) VR knobs marked [100], the
    VR knob marked [102] and the the four (4) knobs
    marked [110] from the outside of the control
    panel. (Fig. 8)
    11-9. Remove the twelve (12) screws marked [34]. The
    PNA circuit board can then be removed. (Fig. 8)
    12. PNB Circuit Board (Time required: about 14 minutes)
    12-1. Remove the bottom assembly. (See Procedure 1)
    12-2. Remove the UD circuit board. (See Procedure 2)
    12-3. Remove the DM circuit board. (See Procedure 3)
    12-4. Remove the DM shield assembly. (See procedure
    10-4)
    12-5. Remove the power supply assembly. (See proce-
    dure 7)
    12-6.Remove the keyboard assembly. (See procedure 10)
    12-7. Remove the encoder knob marked [120] from the
    outside of the control panel. (Fig. 8)
    12-8. Remove the twelve (12) screws marked [44]. The
    PNB circuit board can then be removed. (Fig. 8)
    13. PNC Circuit Board (Time required: about 5 minutes)
    13-1. Remove the bottom assembly. (See Procedure 1)
    13-2. Remove the four (4) screws marked [62]. The PNC
    circuit board can then be removed. (Fig. 8)
    14.Display Assembly (Time required: about 10 minutes)
    14-1. Remove the bottom assembly. (See Procedure 1)
    14-2. Remove the UD circuit board. (See Procedure 2)
    14-3. Remove the DM circuit board. (See Procedure 3)
    14-4. Remove the DM shield assemnbly. (See procedure
    10-4)
    14-5. As for MOTIF 7, remove the power supply assem-
    bly. (See procedure 7)
    14-6 Remove the five (5) screws marked [22]. The
    display assembly can then be removed. (Fig. 8) 
    						
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