Sanyo DC-DA2000 (XE) Service Manual page 12

IC BLOCK DIAGRAM & DESCRIPTION
IC441 LC75342M (2 band equalizer)
L4
L3
L2
L1
NC
NC
R1
R2
R3
R4
IC601 LC867232A-51D2 (Micro Processor)
LSELO LIN LTRE
10 9
11
12
13
14
15
16
17
18
19
20
21 22 23
RSELO RIN RTRE
Interrrupt control
Standby control
CF
RC
X'tal
Base timer
SIO0
SIO1
Timer 0
Timer 1
Real time
service
ROM 128 byte
LCD display
controller
S0 to S7 (PA)
S8 to S13 (PB)
S16 to S23 (PC)
S24 to S31 (PD)
S32 to S39 (PE)
S40 to S47 (PF)
COM0 to COM(PL)
LBASS1 LBASS2
8 7 6
LVref
CONTROL
CIRCUIT
LOGIC CCB
CIRCUIT INTERFACE
CONTROL
CIRCUIT
RVref
24 25
RBASS1 RBASS2
Bus interface
Port 1
Port 7
Port 8
Port 3
ADC
INT0 to3
Noise rejection
filter
Watch dog timer
- 11 -
LOUT
5
4 TEST
3 V
SS
2 CE
1
DI
30 CL
29 V
DD
28 Vref
27 NC
26
ROUT
PLA
IR
ROM
PC
ACC
B resister
C resister
ALU
PSW
RAR
RAM
Stack pointer
Port 0