Table of Contents
Advertisement
A
KCH-16
1
CONTROL UNIT
(X53-4360-20) (A/4)
TH1
100k
-t
2
R1
R4
12k
100k
3
VOLTAGE
DOUBLING
INVERTER
IC1
LM2682MMX
CN8
MAIN
4
MIC1
CN9
CONTROL UNIT
(X53-4360-20) (D/4)
SUB
CN107
E37-0674-15
CN5
2
1
MIC2
CN106
CN6
5
J2
1 KVL
2 TRD
3 MIC
4 ME
5 PS
6 E
7 SB
8 RESET
CURRENT
PROTECTION
6
2SC2873(Y)F
7
02CZ9.1(X,Y)F
VOLTAGE
REFERENCE
62
X53-436 1/2
B
SCHEMATIC DIAGRAM
LCD (B38-0923-05)
R10
10
IC2
C24
LMC7101BIM5
LCD
0.1u
CONTRAST
R20
0
R6
47
R150
22k
C12
R133
R13
0
0.1u
68k
R8
R11
2.2k
12k
MIC AMP
IC3
NJM2904V-ZB
8
1 AoUT
V+
A-IN
BoUT
A+IN
B-IN
4 GND
5
B+IN
C117
CN7
470p
L1
R9
0
POW
5V AVR
IC4
TA7805FQ
R16
1
2
IN
oUT
GND
0
3
Q3
12A02CH
R14
0
R151
9V AVR
470k
Q1
R15
R30
0
330
C27
470p
9V
Q4
SSM3K15TE(F)
D2
LCD/12KEY
BACKLIGHT SW
C
CN1
R37
1k
BUS SW
IC5
BUS SW
TC74LCX245FK
TC7WZ245FK-F
5
B2
6
B1
7
G
8
VCC
R49
0
R45
R50
0
0
R18
C25
27k
10u
R19
2.2k
R17
R21
HOOK
33k
2.7k
R43
R40
100
0
CN10
C22
0.1u
CN11
R42
100
SURGE
ABSORPTION
L5
L3
L4
XC6204B332M
1
VIN
2
VSS
3
CE
Q2,3
LCD/12KEY
BACKLIGHT SW
VOLTAGE
REFERENCE
Q2
2SC4617(S)
D
D6,7,9,10
LCD BACKLIGHT
Q5
UPA672T-A
LCD RESET SW
R41
47k
CS0
IC6
4
R136
GND
0
3
WR
A2
2
A0
A1
1
DIR
R56
27k
Q8
DTC144EE
HOOK SW
Q7
DTC144EE
HOOK SW
3.3V
3.3V AVR
IC8
5
VOUT
4
NC
E
LCD BACKLIGHT SW
Q6
UMG4N
R57
DM2
0
R58
DM1
0
R63
1k
Q9
2SK1824-A
DC SW
X1
L77-1956-05
R69
47k
R64
47k
LCONT
R65
47k
HOOK
R66
47k
KVL
R68
47k
TRD
SB
RESET
D11-14
12KEY BACKLIGHT
Hide quick links:
Advertisement
Table of Contents
