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KCH-16
60
BLOCK DIAGRAM
Q1: 2SC2873(Y)F
D2: 02CZ9.1(X,Y)F
90BL2
90BL
90BL
14.7456MHz
X1
L77-1956-05
VR1
R31-0672-05
S2
SW
Q7, 8
DTC144EE
HOOK
D0-D7, A0, WR, CS0
BUS
SW
IC5: TC74LCX245FK
IC6: TC7WZ245FK-F
SW
Q5
UPA672T-A
SW
Q15
UMG4N
TX
LED
D34, 35
SW
Q14
UMG4N
BUSY
LED
D32, 33
SW
Q6
UMG4N
LCD
BACKLIGHT
D6, 7, 9, 10
LCD
CONTROL UNIT (X53-4360-20)
IC9
3062LFGPUKCTA
CPU
Vcc
AVcc
50M
AVR
5V
SB
IC4
TA7805FQ
AVR
3.3V
IC8
XC6204B332M
33D
90BL
AVR
9V
1.KVL
2.TRD
3.MIC
4.ME
5.PS
6.E
7.SB
8.RESET
J2
POW
SW
SW
Q10, 11
DTC114TE
MIC
AMP
IC3
NJM2904V-ZB
S24
MAIN MIC
MIC1
SUB MIC
MIC2
KEY &
BACKLIGHT
S15-23
D24-31
SW
Q12, 13
UMG4N
PF1-5, ZUP, ZDN, EUP, EDN
SB
DM1/DM2
12 KEY &
BACKLIGHT
S3-14
D11-14
90BL2
KEYO0-3, KEYI0-2
VOLTAGE
doubling
Inverter
IC1
LM2682MMX
KVL, RESET
90BL2
AVR
9V
Q3: 12A02CH
D3: MA2S111-F
33D
IC2
LMC7101BIM5
VOL
PTT
HOOK
TXG
TX
BUSY
BUSYR
DM1
DM2
LCDRST
LCONT
PS
TXD
RXD
TRD
MIC