Kenwood 144MHz FM TRANSCEIVER K2E - Manual (Page 59)

TH-K2AT/K2E/K2ET
56
BLOCK DIAGRAM
Q23 TCXO
LOOP
FILTER LPF
Q6
D1, D2
Q1
Q3
SHIFT SW
OSC
12.8MHz
D74,D75
IC5
HPF
Q30
VOX AMP
Q29,D22,D27
MIC AGC
IC16
SPLATTER
FILTER
LIMITTER AMP
Q27
WIDE/NARR
IC8
MPU
1SV325
2SC5066
(O)
2SK1830
KTC4082
2SK1830 2SC4617(R)
2SC4919
1SS361
RB706F-40
NJM2107F NJM2904V
DA221
TRIPLER
2nd Local
INT
S-80844
CNNBB85
IC10
RESET
IC11
S-80930
CNNBG80 IC15
AT25160N
10SI27
EEPROM
BEAT SHIFT
Q52
RN1107
LCD
1SV305
D6
REM,SQ,SM,BATT
DTMF/BEEP,TONE
BPF/APC
SEG0~31
COM0~3
RXD,PTTE,PTTI,
ENCA,ENCB,
PWRSW,KIN0~4,TYPE
AFM,SPM,MICM,
KAPC,FINAL,CHARGE,
AFAMP,RXLED,BTDET,TXD
5MS,5R,5T,5C(SAVE)
,VOX,
KYO0~3,VUKEY
VCC,DVCC
AVCC,AVRH
HST(VCC),V3
RESET
INTUP
INTDW
CLOCK
DATA
EEPCS
EEPDI
BSFT
X0
X1
PLLEN
PLLLD
CLOCK
DATA
BTEMP
KEY ILLMI
B30-2205-05
D42,43,46
D44,47
2SK1830
Q50
KEY ILLMI
SW
LAMP
PTT
LAMP
MONI
D48,49
RN4902
LCD ILLMI
SW
Q51
B30-2205-05
LCD ILLMI
DCDET
MOD
PTTI
KIN4
KYO1
KYO2
2SC5488
RF AMP
SIGIN
NAR
X57-674 B/3
NAR 5MV
5R
5C
SHIFT
5C
Q47
RN1701
TX/BUSY
LED SW
TX/RX LED
B30-2156-05
D40,41
B30-2157-05
5T
RXLED
5C
D24
MA742
VOX DET
VOXIN
5T
5MV
VR1
5MS
VR5
VR6
TONE
TONE
KIN0~3
KYO0~3
VR6
VSS,DVSS,
AVSS,AVRL
MICM
DTMF/BEEP
X57-674 C/3
H/L
H/L
D/A
A/D
PWM
X1
SW LIMITTER
PTTE/RXD
5M
X57-674 A/3
NOAA
J3
IC1
PLL IC
LMX2316TMX