– 68 –
– AUDIO Board –
IC602
µPC1330HA
1
2
3
4
5
6
7
8
9
INVERTER
COMPARATER
SW R1
GND
SW P1 CONT
GND
VCC
SW P2 GND
SW R2
– PANEL Board –
IC603
BA3830F
F01
R02
R01
LINE NF
LINE IN
REFERENCE
CURRENT
REFERENCE
CURRENT
RESET
BAND
PASS
FILTER
DET
17
RESET
18
F02
16
F03
15
F04
14
F05
13
F06
12
REC LEVEL
11
VCC
10
4
3
2
1
+
–
REC NF
REC IN
6
RESET C
7
BIAS C
8
GND
9
5
+
–
IC604
NJU3716M-T2
OUTPUT CIRCUIT
LATCH CIRCUIT
SHIFT REGISTER
CONTROL
CIRCUIT
20
21
19
23
24
22
18 17 16 15 14 13
4
3
2
1
6
P7
P8
P9
P10
P11
VSS
P12
P13
P14
P15
P16
7
SO
8 9 10 11
12
5
VDD
P6
P5
P4
P3
P2
VSS
P1
CLR
STB
CLK
D
ATA
OSCILLATOR
1/2 VCC
AUTO
RESET
LPF1
MAIN
CONTROL
A/D
20KBIT
SRAM
LPF2
D/A
1
2
3
4
5
6
7
8
9
10
14
13
12
11
CLOCK
RESET
MO
MI
D1
DO0
DO1
VCC
CLOCK
REF
OP2IN
OP2OUT
LPF2IN
LPF2OUT
LPF1IN
LPF1OUT
OP1OUT
OP1IN
CC1
CC2
GND
IC711
M65850FP
