Yamaha UD-Stomp - Page 39

UD-Stomp
9
8
7
6
5
4
3
LKJIHFGEDCBA
LA KJIHGFEDCB
1
2
UD-Stomp
UD-Stomp OVERALL CIRCUIT DIAGRAM 1/3 (DM)
UD-Stomp
from P2.K6
to P2.K6
DM
P1
SRAM 256K
DRAM 4M
DRAM 4M
SRAM 256K
Photo Coupler
BUFFER
BUFFER
BUFFER
INVERTER
DIT2
REGULATOR +3.3V
ASSP
DSP6
CPU
ROM 8M
OR
OR
OR OR OR
OR
OR
OR
AND
AND
AND
to PN1/2-CN304
to PN1/2-CN303
to PN1/2-CN302
DIGITAL
OUT
EXP.PEDAL
MIDI OUT MIDI IN
KEC-54242-2
1
Note : See parts list for details of circuit board component parts.
: Ceramic Capacitor (Chip)
BT1
Socket for CR2450
to P2.G3
from P2.K6
from P2.K6