Block Diagram - Roland BOSS BR-1180 Service Notes

MAY.2002

BLOCK DIAGRAM

fig.block
ANALOG BOARD
GUITAR IN
MIC2(PHONE)
:PHANT0M
MIC2(XLR)
47.4[v]
MIC1(PHONE)
MIC1(XLR)
LINE IN L
LINE IN R
00.00.00-00
LCD UNIT
LED MATRIX
SW MATRIX &
TAP SW
RIBON CABLE 2P
POWER SW
ENCODER
FADER&INPUT VR
EXP PEDAL
FOOT SW
MIDI IN
MIDI OUT
20
SENS
PEAK
SENS
PEAK
C C
N N
14P
1 1
CABLE
0 0
3 5
C
N
6
C C
3.3V->
N N
16P
5V
1 1
CABLE
0 1
IC38,41
8 1
SW BOARD
C C
N N
18P
1 1
CABLE
1 1
7 2
MULTIPLEX
IC32,29
C C
N N
18P
CPU
1 1
CABLE
0 1 IC28
6 0
X1
PC
IC26
IC23
CODEC
SELECTOR
AF-AD IC5
IC2
IC46
GA
IC36
DSP
IC27
X2
DATA/ADDRESS
FLASH
SDRAM
MEMORY
IC30
IC24
RESET
IC34
LINE OUT L
LINE OUT R
LEVEL
HEADPHONE
DIGITAL
OUT
DIGITAL OUT
IF
IC25
DRAM
IC47
IDE
INTERFACE
DATA/ADDRESS
IC35,39,42
CN5
FLAT
FLAT
C
CABLE
N
CABLE
50P
4
40P CN101
HDD
CDI-BR-1 PWB
DRIVE
CN102
CD RW DRIVE
BR-1180
21