Roland EXR-7 Service Notes

EXR-7
Apr.2004
27
26
BLOCK DIAGRAM
ADDRESS BUS
DATA BUS
D[0-15]
CKIN
D[0-7]
IC9
LCD
IC2
XCS1
CLK
IN
Q1..Q7
FDD
LATCH
D[0-7]
XRST
&
A[1-21]
CS1
PD[0-7]
XTAL
XRST
IC8
16MHz
D[0-15]
SSEN
MATRIX
AN6,7
XPORT
XFLASH1
XFLASH2
MIDI
XFLASH
STYLE
FLASH
XECS
SCAN
SH2-uC
IC2
MATRIX
TX1
[2,3,4,5,6]
D[0-15]
SH2 GA
A0,1
7.056MHz
PHOTO
BUFFER
D[0-7]
XRST
DRIVER
IC1,IC2
XRST
X1
3.5"
DECODER
A0,1
MUTE
CPU BOARD
16Mbit
BENDER
WP
CS2
XRST
ITAROLM008
D[0-1]
X2
IC38
D[0-15]
A[0-21]
LS[0-3]
LED
A[1-12]
2x16Mbit
DRAM
CKOUT
KEY
IC3
RX1
XCS0
XCS
IC3,IC4
OUT
A[0-5,19-21]
IC36,IC37
DRIVER
A20
MODULATION
XRAS
CS0
CK
XCS
XTAL
16Mbit
RESET
CAS
LLCK
PORT
IC8
A[1-21]
RAS,CAS
SS[0-3]
FDC
IC1
SWITCH
IC18
PROGR.
FLASH
X3
24.576MHz
SOUND
GENERATION
CONTROL
BOARD
LINE
OUTPUT
L R
IC6
AMPL.
FOOTSWITCH
VOLUME
MUTE
CNTRL
SQUELCH
Q4,Q17,Q18
MUTE
Q2,Q3
AN3
POWER
AMPLIFIER
L+
L-
R+
R-
SPEAKER L SPEAKER R
KEYBOARD 76 KEYS
EQUALIZER
JACK
BOARD
D/A
DATA
LOUT
ROUT
IC31
IC14IC47
LPF
XGWAIT
CS4
WP
WPCNT
WPCNT2
XF1RST
XF2RST
XF3RST
RESET
IC1
SWAP_ROM
XSTYLE
SWAP_ROM XFLASH1
XFLASH2
USB
CONTR.
A
XP
128 M
RAS
WAVE ROM
RAS
ED
D
D RAM
WD
EWE
IC26
XRST
CAS
ED
IC24
WE
D
A
EA
UCAS
WA
IC28
A
4 M
D[0-15]
A[1-6]
XUSB
UDP
UDM
VBUS
IC8,IC5
12 MHz
X4
XTAL
MAXXBASS
IC3
IC4
IC9
BUFF.
AMP_POWER
+5V
-
SUPPLY
POWER
+12V
+
DC IN
12V
2A
SWITCH BOARD
PHONES
BOARD
L R
+3.3V
USB
MUTE
CNTRL
Q5,Q6
64 M
WAVE ROM
IC51
D-BEAM
RESET
IC5
WVOUT AN1
D-BEAM
Control
IC77,78,79,80,Q3,4
D1,D2,IC1
IC5
DECODER
XRST
14.112MHz
28.224MHz
ADDRESS BUS
DATA BUS
CS BUS
D
1 2 3 4 10
20
3 2 1
POWER SWITCH
1 2
JK1
1
2
3

Roland EXR-7 Specifications

General

Brand	Roland
Model	EXR-7
Category	Electronic Keyboard
Language	English