29
Dec.2004
DR-880
BLOCK DIAGRAM
fig.block.eps
DRAM(4M/WORKING)
OUTPUT
VOLUM
E
TC203C180AF
INDIVIDUAL A
FLASH MEMORY(16M)
TC223C080AF-101
LCD DRIVER
MASK ROM
(WAVE 128M)
ESP4
XP7
MIDI IN
UPD703106(V8 50 MA1)
CPU
VOLUM
E
DRAM(4M)
MIDI OUT
(MIDI or STRAGE)
DIGITAL OUT
CODEC
LED
USB Controller IC
SW BOA
RD
ASSY
LCD
POWER SW
A+12V
BRC ADAPTOR
AC 14 V
A-1 2V
D3.3 V
GUITAR IN
FOOT SW 3.4 / EXP
PEDAL
FOOT SW 1.2
LED DRIVER
LCD BACK LIGHT
DAC/DIT
A3.3 V
AF-AD
PHONES
OUTPUT R
OUTPUT L( MONO)
OUTPUT R
OUTPUT L( MONO)
INDIVIDUAL B
CLOCK OUT
SYNC
JK3
JK1 A
JK6
JK7
JK11
JK8
JK9
JK10
JK1 B
JK12
A
A
A
A
A
D
D
2
1
3
JK5
1
2
3
JK4
1
2
3
1
2
4
1
2
4
12
22
11
1
2
3
2
1
1
2
3
1
2
4
1
2
3
SW1A
12
11
13
Summary of Contents for DR-880
Page 11: ...11 DR 880...
Page 29: ...31 Dec 2004 DR 880 CIRCUIT BOARD MAIN BOARD fig b main1 eps View from components side...
Page 30: ...33 Dec 2004 DR 880 CIRCUIT BOARD MAIN BOARD fig b main2 eps View from foil side...
Page 34: ...41 Dec 2004 DR 880 CIRCUIT BOARD SW fig b sw1 eps View from components side...
Page 35: ...43 Dec 2004 DR 880 CIRCUIT BOARD SW fig b sw2 eps View from foil side...
