A
B
C
D
E
F
G
H
I
J
K
L
1
2
3
4
5
6
7
8
PSR-550
■
PSR-550 OVERALL CIRCUIT DIAGRAM 1/2 (DM)
to PN 1/5-CN401
to AM-CN800
to MKS5-CN1
to BACK LIGHT ASS'Y
to PN 1/5-CN501
to PN 1/5-CN301
to PN 1/5-CN101
to AM-CN530
to PN 1/5-CN102
DM
to AM-CN100
FDD
CPU
SRAM 1M
DRAM 4M
MAIN ROM
32M
D-FF
OR
DECODER
D-FF
DECODER
D-FF
FDC
WAVE ROM
64M
DAC
SWX00B
DRAM 4M
REGULATOR
+3.3V
REGULATOR
+5V
DC-DC
CONVERTER
SYSTEM RESET
REGULATOR
+5V
28CC1-8819393 1
:
Mylar Capacitor
:
Ceramic Capacitor
: Semiconductive Ceramic Capacitor
: Metal Oxide Film Resistor
Note : See parts list for details of circuit board component parts.