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ZS-RS70BT/RS70BTB
53
IC401 BU4053BCF-E2
– KEY A Board –
IC601 HT1621
IC904 S-T111B33MC-OGSTFG
IC901 NJW4152GM1-A (TE2)
1
2
3
15
16
Y1
Y0
Z1
4
5
6
Z
Z0
INHIBIT
7
8
VEE
VSS
VDD
Y
13
14 X
X1
11
12 X0
A
9
10 B
C
LEVEL
CONVERTER
BINARY TO 1 OF 2 DECODER
WITH INHIBIT
SW
8
IN–
5
FB
6
GND
7
V+
ON/OFF
2
PV+ 1
3
RT 4
BUFFER
REGULATOR
TSD
OSC
OCP
PULSE BY PULSE
STANDBY
ON/OFF
LOW
FREQUENCY
CONTROL
VREF
ER.AMP
PWM
SOFT
START
+
–
+
–
UVLO
+
–
4
5
1
2
ON/OFF
VOUT
VIN
VSS
3
NC
OVER CURRENT
PROTECTOR
REFERENCE
VOLTAGE CIRCUIT
ON/OFF
CIRCUIT
CS
SEG10
1
RD 2
WR 3
DATA 4
SEG21
24
BZ 8
COM0 9
COM1 10
COM2 11
34
SEG30
14
SEG31
13
COM3
12
VSS 5
VLCD 6
VDD 7
CONTROL
AND
TIMING
SCIRCUIT
LCD DRIVER/
BASE CIRCUIT
DISPLAY
RAM
TONE
FREQUENCY
GENERATOR
WATCHDOG TIMER
AND
TIME BASE GENERATOR
SEG29
15
SEG28
16
SEG27
17
SEG26
18
SEG25
19
SEG24
20
SEG23
21
SEG22
22
SEG20
23
SEG19
25
SEG18
26
SEG17
27
SEG16
28
SEG15
29
SEG14
30
SEG13
31
SEG12
32
SEG11
33
4
32
SEG9
35
SEG8
36
SEG7
37
SEG6
38
SEG5
39
SEG4
40
SEG3
41
SEG2
42
SEG1
43
SEG0
44
Summary of Contents for ZS-RS70BT
Page 79: ...MEMO ZS RS70BT RS70BTB 79 ...