Sony BC-1WD Service Manual page 24

IC
L78MG (SANYO)
POSITIVE VOLTAGE REGULATOR (500mA)
1
INPUT
REFERENCE
STARTER
VOLTAGE
LM339NS (TI)
UPC339G2
QUAD COMPARATORS
—TOP VIEW—
GND
14 13 12 11 10 9
+
_
+
_
+
_
+
_
1 2 3 4 5 6
V
CC
NJM78L05A (JRC)+5V(100mA)
UPC78L05J
POSITIVE VOLTAGE REGULATOR
3
IN
GND
2
OUT GND IN
1 2 3
5-4
1
4
OUTPUT PATH TRANSISTOR
EXCESS CURRENT
SOA PROTECTION
+
PROTECTOR
_
ERROR
AMPLIFIER
THERMAL
PROTECTOR
8
7
1
OUT
MB89131 (FUJITSU)
8-BIT ORIGINAL MICRO CONTROLLER
—TOP VIEW—
37
38
39
40
41
42
43
44
45
46
47
48
3
OUTPUT
4
PIN
CONT
I/O SIGNAL
NO.
1 — A.V
CC
RST
2 I/O
2
MOD0
3 I
GND
4 I MOD1
5 I X0
6 O X1
7 — V
CC
8 I X0A
9 O X1A
10 O P27
11 O P26
12 O P25
INPUTS
AN0 - AN3 : BATTERY VOLTAGE DETECTING (1CH - 4CH)
MOD0, MOD1 : MODE 0, 1
P10 : FULL CHARGE DETECTING
P11 : VOLTAGE DETECTING AT DISCHARGE COMPLETED
P12, 13 : IØ, VH DETECTING
P15 : DISCHARGE RESET SW
P16 : LIFE JUDGING SW
P33 : SERVICE PORT
P34 - P37 : BATTERY DETECTING (1CH - 4CH)
RST
: RESET
X0, X1 : CLOCK 0, 1
X0A, X1A : SUB CLOCK
OUTPUTS
P30 : DISCHARGE COUNT
P31 : LIFE DISCHARGE
P32 : LIFE JUDGING MODE DISPLAY
PO0 - PO3 : CHARGE (1CH - 4CH)
PO4 - PO7 : DISCHARGE (1CH - 4CH)
P14 : TRIGGER CHARGE
P17 : MODE DISPLAY
P20, P22, P24, P26 : CHARGE DISPLAY (1CH - 4CH)
P21, P23, P25, P27 : DISCHARGE DISPLAY (1CH - 4CH)
5
X0
OSCILLATOR
6
X1
8
X0A
LOW POWER
OSCILLATOR
9
X1A
27-34 8
PO7 - PO0
18,20-26 8
P17,P16 - P10
3-4
MOD0 - MOD1
14,15
P22,P23
10-13,16,17
P27 - 24, P21, P20
(128 x 8-BIT)
24
23
22
21
20
19
18
17
16
15
14
13
PIN PIN
I/O SIGNAL I/O SIGNAL
NO. NO.
13 O P24 25 I/O P11
14 I/O P23 26 I/O P10
15 I/O P22 27 I/O PO7/(INT27)
16 O P21 28 I/O PO6/(INT26)
17 O P20 29 I/O PO5/(INT25)
18 I/O P17 30 I/O PO4/(INT24)
19 — GND 31 I/O PO3/(INT23)
20 I/O P16 32 I/O PO2/(INT22)
21 I/O P15 33 I/O PO1/(INT21)
22 I/O P14 34 I/O PO0/(INT20)
23 I/O P13 35 I/O P37/BZ/RCO
24 I/O P12 36 I/O P36/INT2
TIME BASE
(MAX3 MHz) TIMER
CLOCK RESET
CONTROL (WDT)
8-BIT
COUNTER
(32.768 kHz)
PORT0/1
8-BIT
C-MOS
TIMER
INPUT/OUT-
PUT PORT COUNTER
8-BIT
EXTERNAL
SERIAL
BUS
INTERFACE
EXTERNAL
PORT2
INTERRUPTION
C-MOS
OUTPUT
PORT
RAM
N CH OPEN
DRAIN
OUTPUT
PORT
F 2 MC-8L
4
CPU
8-BIT
ROM A/D
(4K x 8-BIT) CONVERTER
PIN
I/O SIGNAL
NO.
37 I/O P35/INT1
38 I/O P34/TO/INT0
39 I/O P33/EC/SCO
40 I/O P32/SI
41 I/O P31/SO
SCK
42 I/O P30/
43 — A.GND
44 I AVR
45 I/O P43/AN3
46 I/O P42/AN2
47 I/O P41/AN1
48 I/O P40/AN0
2
RST
38
P34/TO/INT0
39
P33/EC/SCO
42
P30/SCK
41
P31/SO
40
P32/SI
37
P35/INT1
36
P36/INT2
35
P37/BZ/RCO
45-48
4
P43/AN3 - P40/AN0
44
AVR
BC-1WD