Block Diagram - Kenwood 144MHz FM TRANSCEIVER K2E Service Manual

TH-K2AT/K2E/K2ET
D74,D75
DA221
LIMITTER
J3
PTTE/RXD
KIN0~3
KYO0~3
PTT
PTTI
KIN4
D48,49
B30-2205-05
LCD ILLMI
LAMP
KYO1
KYO2
MONI
X57-674
X57-674
56

BLOCK DIAGRAM

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