Hammond Suzuki XB-2 User manual

SERVICE MANUAL
XB-2, XB-Sn
CAUTION !
see safety notice inside
J
May,1991
HAMMOND SUZUKT, LTD.
753 frt\(\ont.i\c On vse
60\o\
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SAFETY NOTICE
Great care has been taken in the design and manufacture of this product to assure that no shock hazard
exists on any exposed metal pads. Internal service operations can expose the technician to hazardous line
voltages and accidentally cause these voltages to appear on exposed metal parts during repair or
reassembly of product components. To prevent this, work on these products should only be performed by
tliose who are thoroughly familiar with the precautions necessary when working on this type ofequipment.
To protect the user, it is required that all enclosure parts and safety interlocks be restored to their
original condition and the following tests be performed before returning the product to the owner
after any service operation.
Plug the AC line cord directly into a line voltage AC receptacle (do not use an isolation transformer for this
test) and turn the product on. Connect the network (as shown below) in series with all exposed metal parts
and a known earth ground such as a water pipe or conduit. Use an AC VOM of 5.000 ohms per volt or
higher sensitivity to measure the voltage drop across the network. Move the network connection to each
exposed metal part (metal chassis, screw heads, knobs and control shafts, escutcheon, etc.) and measure
the voltage drop across the network. Reverse the line plug and repeat the measurements. Any reading of 4
volts RMS or more is excessive and indicates a potential shock hazard which must be corrected before
returning the product to the user.
.01 MF
CERAMIC RF
BYPASS CAP
TEST CLIPS
TEST
PROBE
CONNECTED TO KNOWN
EARTH CROUND
TO EXPOSED METAL PARTS
CAUTION
Danger of explosion if ^battery is incorrect
ly replaced. Replace only with the same or
equivalent type recommended by the equipment
manufacturer. Discard used batteries accord
ing to manufacturer's instructions.
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TABLE OF CONTENTS
1. SPECIFICATIONS & LCD MAP 1-1,1-2
2. BLOCK DIAGRAM 2
3. MASTER GEN. LOGIC . 3
4. DISASSEMBLY PROCEDURE 4
5. TEST AND ADJUSTMENT PROCEDURE 5
6. MIDI IMPLEMENTATION CHART 6
7. SUB WIRING CHART 7
8. WIRING CHART 8
9. PRINTED WIRING BOARD ASS'Y-LIST 9
10. PWB SCHEMATICS
MGH-61A 10-1/3, 10-2/3, 10-3/3
' SWK-290C s 10_2
PSH-72A 10_3
SWH-400A 10.4
SWH-401A 10-5
SWH-402A 10.6
FLH-45A 10.7
MXH-16A 10.8
EFH-221C 10.9
EFH-227A 1O-1O
11. ALL RESET H
12. SOFTWARE VERSION 12-1, 12-2, 12-3
13. MEMORY DUMP 13
v 14. ERROR MESSAGES 14
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J
XB-2 LCD DISPLAY MAP
cancel a
CUTCEL 1
POWElTl
VERSION 1.0
SETTSt ECCLDSTVE
RiTA GtfDpress 2
K3H
SYSTEM EtOJUSIYE
PfOTECDoff
PftJTECtfon
n
1-62 •
SPLIT;2B
4
KECGRD
J-52 *1234567SC j
splxkb I
EDIT
VIBRATO
TIMS
YIBRAT9
KO9CI
SFD:NQ» '—'
» SHOT
VIBRATO
SPLTDoff
KOE>V1 V2 Y3 Cl a Q SPUT>on off
SmSUR M35MAL iOU FAST
< 4
HtfFERTENE
>44CHz
SKJFT
TRANSPOSE
SHIFT
PITCH BEHD
>lkey"12lcey
PERCUSSION
FOOTS?
peeossion
BBCAY>s S0FT:of
SOFDcn off
t:fest
SJ2FT
PERCUSSJOX
VELOCITDott
V£LOCITY>on off
PERCUSSION j—* #—-. .;
ROTS? j H MFOJfS?
S 5
| SELECDLES S/r :
SEUECDi.LES S/F 2.SUSTAIK 3.PRF5ET Sb
SPLIT 1 h
C
[ VOICE
! :UPPER >3-"nTE
>upper >a-riTE
SHIFT
DRAVHAK SCD9 ATC
V >off
h-CH
>on
SHIFT
DRVrfRIR SUSTAIN .
lW>off :SK0RT
>on >SH0KT
>off
SHIFT
ORA^AR SUSTAIN
:SIOKT
hi:5G
h-Q
>on >SH0KT
>off HJONG
lo>iCT2C
SRIFT
DRAWBAK
SPLIT
MIDI
EFFECT
DCH
6 6
S1IT
>off POINT: 2C I
>off
' . SHIFT
SPLIT ♦
SAVDpress REC j
«HH-I
SPLIT
SHIFT
OCTAVDUP
{ j
SHIFT
SPLIT J
LOBERCANCEDoffl
LOKER CANCIDon
! MIDI EDIB ! 1 j 1 MIDI EDITC
- • :BAX!COtA»M?LM • «—I I OJWI>of LOCALrcn
; BASIC CHAXNEDi I
t «
BASIC CHANNa>P16
SHIFT
,—I ! UHDI EDIT3 *—I ~U
.:cnl ! » ! EXP>INT FO0T:92 ! '—-1
OKNDon LOCADof
HIDI20XE2
lo>iC hi:6C
SHUT
MIDI ZONE2
ts.ch>i rrcg:l
hi^loCBC
SHIFT
SHIFT
] EXP>INT FO0T.-92
EXP>EXT FOOD0"95
SHIFT
-I MIDI EDn4
!KRPN>off
KJ
NRRDmi
| UIDI 20NEI
jloMC h!:6C
-D-
l.2,off
SfllFT
SHIFT
MIDIZKE1
«.<*>! prog:l
7 . 7
EFFBCT1
OVER DaiYE>oh
OVERDRIVDoff
1 f
J SHIFT I
hi«loC6C
uch>P16
LESUE >on
I£SLIE>od off
SHIFT
EFFBCT3 •
XEf CUCK>N0fOUL
PRESET
RESET
PRD1
PAT:52 P09:off
KETCUODSOFr
>off
SHEFT
EFFECTS
>UVE
>HALL
XBJKR
PAI>ri28 POUXn off
RESET
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DIGITAL SECTION
FRONT PANEL
SWITCH ^ LED
SWH-4OOA
V
POWER SUPPLY
PSH-72A
->+5V
MIDI JACK
FOOT SWITCH
LCD CONTRAST
SWH-401A
CPU RESET
LEFT ENDBLDCK
SWITCH k LED
SWH-4O2A
PITCH BENDER
MODULATION WHEEL
y f
MAIN BOARD
MGH-61A
CPU** MEMORY
MUSE^DRB CONTROL
A/OC for D/B WHEEL
LCD U KEY CONTROL
SWITCH SCAN ^ LED DRIVE
ANALOG I/F
DRAWBAR
9 PITCH
DB-2O9E
LCD UNIT
16X2
LM162AS5
1
61 KEY
SK161OS
OUT PUT CHANNEL for Each Voice
ANALOG SECTION
CLOCK
FILTER
FLH 45A
D/AC
DIRECT
LOW
LESLIES VIBRATO CHORUS
EFH-221C
EFFECT
LOW
effect:
DIRECT High
EXP BIAS
EXT LESLIE DETECT.
AS1~G. KEY DOWN
VIB LES MODE CONTROL"
OVER ORIVE,L£S CONTROL
EXPCONTOL
DIGTAL REVERB
EFH-227A
.DRIVE
L.R
L R
REVERB
VOLUME
r
OUT PUT MIXER
OVER DRIVE
FILTER
EXPRESSION PEDAL
VIB It LES CONTROL
TONE CONTROL
SEND. RETURN
HEAD PHONE
EXT LESLIE CONTROL
MXH-16A
2.
MOOE
BIAS
TREMOLO
OFF
JlSEND
T] RETURN
y
H/P
LESLIE
F11PIN
OIN
EXPRESSION
PEOAL
EXP-1OOA
XB-2
BLOCK DIAGRAM
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XB-2
MGH-61A
MASTER GEN. LOGIC
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4. DISASSEMBLY PROCEDURE
XB-2
CAUTION:DISCONNECT ORGAN FROM A.C.LINE
VOLTAGE SOURCE.
(1) REMOVE TOP BOARD :
Loosen 5 screws of bottom board and remove the top board.
Note : Don't pull these screws excessively. Screws are
not removed structurally.
(2) REMOVE KEYBOARD :
a) Follow steps (1) REMOVE TOP BOARD.
b) Remove 5 screws from the bottom.
c) Remove 3 screws on upperside.
d) At first, lift up the right side of keyboard, and then
remove the keyboard.
[The left side of keyboard is under the endbiock assembly.]
85 caution : wiring is connected.
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REMOVE ENDBLOCK :
a) Follow steps (2) REMOVE THE KEYBOARD
b) Remove 2 screws from the bottom.
c) Remove 4 screws on the upperside.
d) and then remove the endblock assembly.
85 Caution : wirings are connected.
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5. TEST AND ADJUSTMENT PROCEDURES
NOTE-During the test procedure the following must be maintained
unless otherwise stated:
a.Expression pedal at maximum
b.Drawbar type: Mellow
c.All switches.Tonebars in the OFF position.
d.Total volume at maximum
XB-2
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[ HAMMOND
Model
XB- 2 ]
6. MIDI Implementation Chart
Date : Apr.11. 1991
Version : 1.0
Mode 1 : OMNI ON. POLY
Mode 2 : OMNI ON. MONO
O : Yes
MINT APP T*rtf V
-J- M
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8.WIRING CHART
XB-2
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PRINTED WIRING BOARD ASS1 Y LIST
XB-2
XB-2N (WITHOUT DIGITAL REVERB)
MAIN BOARD IS MGH-61AN 228-22206N
(which is same as MGH-61A except adding JP4 to MGH-61A)
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L
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2/Z -CH
902ZZ-8ZZ
e /I VI9-IBH
NIYH
2-gx
L2lf
C ^^^^/-r'2 jrt'r
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WR-J25
SWH-401A
1J201 r 1 u
TRANS
D/B
□ en
J118
MGH-61A
J121
J116 J1U
J11V JH5 JH4
BENDER
WR-V19
WR-L18
WR-F23
?
on
WR-D17
CUJ203
SWH-402A
WR-016
SWH-400A
LCD
WR-R15
MXH-16A
J304
CPJ306
REVERB VR
TOTAL VR
WR-V20 WR-V18
KEY
11PIN
7.
XB-2
SUB WIRING CHART
J05-I7430
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