Dm Circuit Diagram - Yamaha P-85 Service Manual

H G

DM CIRCUIT DIAGRAM

DM
1
to JK-CN301
<Page 5 H-5>
2
to PN2-CN704
<Page 5 D-2>
3
4
5
4 28CC1-2001022991-1
6
F
SYSTEM RESET
Detection voltage: 3.6 V
CPU (SWL01T)
ADC
AND GATE
AND GATE
CPU (MKS)
to GHL88M-CN2
<Page 6 F-4>
E D
FLASH ROM 64M FLASH ROM 4M
PROG./WAVE
CPU (SWL01T)
DAC
: Ceramic Capacitor (chip)
Note : See parts list for details of circuit board
component parts.
C B
DRAM 4M
OR
FLASH ROM 32M
PROG./WAVE
REGULATOR +2.5V
REGULATOR +3.3V
OP AMP
DM CIRCUIT DIAGRAM
A
P-85/P-85S
1SS355 TE-17 (VT332900)
DIODE
DM: D501-509
1
2
1: ANODE
2: CATHODE
UDZS6.8BTE-17 (VU172200)
ZENER DIODE 6.8V
DM: ZD1
1
2
1: ANODE
2: CATHODE
2SC2412K(VV556400)
TRANSISTOR
DM: TR501
3
2 1
3
2
1: EMITTER
2: BASE
1 3: COLLECTOR
BA33BC0FP (X5889A00)
REGULATOR +3.3V
DM: IC501
2
1
3 1. INPUT
2. GND
3. OUTPUT
RH5RZ25CA-T1-F (X3679A00)
REGULATOR +2.5V
DM: IC502
1
2
3
1. GND
2. INPUT
3. OUTPUT
to AM-CN101
<Page 5 H-3>