Roland EXR-5 Service Note

EXR-5
37
CIRCUIT DIAGRAM (MAIN 6/6 - USB SECTION)
D[0..15]
D15 D14 D13 D12 D11 D10
D9 D8 D7 D5 D4 D6 D3 D2 D1 D0
A6 A5 A4 A2 A1 A3
A[0..6]
D[0..15]
A[0..6]
XUSBCDREQ XUSBCDACK
XUSBCINT
XRESET
XUSBC
XWRL
XRD
VBUS UDP UDM
D
D
D
D D D
D
+
D3.3
D
5VD
5VD
5VD
R174 470s
R171
10Ks
R165 0s
R168 1K5s
C305
10nFs
C294
10uF16s
C293
10uF16s
R169 10Ks
R166 27s
C295 100nFs
IC39 M66291GP
CORE-VCC
1
GND
2
D-
3
D+
4
VBUS
5
TRON
6
TEST
7
DACK1
8
DREQ1
9
TC1
10
INT1/SOF
11
IO-VCC
12
XOUT
13
XIN
14
GND
15
CORE-VCC
16
A1
17
A2
18
A3
19
A4
20
A5
21
A6
22
D0
23
D1
24
D2
25
D3
26
D4
27
D5
28
D6
29
D7
30
D8/P0
31
D9/P1
32
D10/P2
33
D11/P3
34
IO-VCC
35
GND
36
D12/P4
37
D13/P5
38
D14/P6
39
D15/A0
40
HWR/BYTE
41
INT0
42
RD
43
LWR
44
CS
45
RST
46
DREQ0
47
DACK0
48
C298 100nFs C297 100nFs
R167 27s
R172 1Ms
C301
10nFs NIU
X4
MA_406_12MHz 12.000MHz
C299
15pFs
NIU
C304 15pFs
C300 1uFs
R170
10Ks
C296 100nFs
R173
1Ks
C302
1uF16s
C303 15pFs

Roland EXR-5 Specifications

General

Polyphony	64 voices
Speakers	12 cm x 2
Keyboard	61 keys (with velocity)
Drum Kits	20 drum kits
Effects	Reverb, Chorus
Connectors	MIDI In/Out
Power Supply	AC Adaptor