Block Diagram - Kenwood TK-3118 Service Manual

MODEL TX-RX Unit
TK-3118: C X57-6243-00
PLL IC
PLL DATA
EP
7.3728MHz
Q303 DT
DTC CK
114YE
CLOCK
SHIFT
CPU
CHANNEL SW
LCD
IC300
Q302
M38287MBL271GP
DTC114EE
SW
D304
D305 EEPROM
SCL
SDA
IC302
24LC16BT
5M
PTT
TX-RX Unit
X57-6243
-00 C
INT
IC303
PST
MONI
914SNR
SW
TX/BUSY LAMP
Q304
SB
3.5ms
DTA123JE
3.5m
D300 D313
SW SW
Q301 Q300
DTC DTC
114EE 114EE
RLED GLED
55
TK-3118
DEV
AMP
D12
DEV
MA360
Q3
2SC5108
LOOP FILTER
F.CONT
IC1 D6,D9
MA2S376XL
MB15E035L
3.5C
UL 2ND LOCAL
F.CONT
TCXO VR1
D7,D11
MA2S376
X2
X1
12.8MHz
3.5C
TO
TXD RXD
READ/WRITE
APC/TUNE
WNRC 5RC
TO AFCO
SAVE MUTE
5MC EP
5TC DT
WNTC CK
PABC RLED
GLED BEEP
X3 2ND LOCAL AMP
RX
SHIFT
KEY TCXO Q2
12.8MHz
KTC4082
UL BATT 3.5R
TI
TIB1
BUSY
DTMF DEC NOISE DET
IC301 D1
BUSY
LC73881M MA742
RESET
IC304
PST
9124NR
3.5V REG.
IC305
XC62FP SB
3502P
AVR/SW
Q310
KTA1298
SB
Q311
UMG3N
SW
Q325
DTA123JE
AVR/SW SW
Q305 Q309
UMG3N DTA123JE
Q306 Q312
UPA672T DTC144EE
SB
Q307
FP210
Q308
UPG3N
TK-3118
BLOCK DIAGRAM / 方块图
TX VCO BUFF AMP AMP LO.SW
D14
Q5 Q7 Q11 D15
2SC5066 2SC5108 2SC5108 HSC277
X2
5C 5C 5T
RX VCO T/R SW RIPPLE FILTER
Q8,Q9 Q10,D13
Q4
2SJ243 2SC4617
5C
2SC5066
KRX102U MA2S111
RX
L22 CF1
DET COIL CP
450kHz
IF IC
XF1
MCF
IF AMP
IC2
Q6
TA31136FN
KTC4082
38.4MHz
38.85MHz
5R
SM
3.5R
BASE BAND SECTION
IC307
IC306
NOISE AMP LPF
FLAT AMP
Q1
2SC4738
LPF
LPF
NJM2904V
HPF
HPF
LIMITER
D306
TI
DA221
NJM2902V
TIBI
3.5C
VR302
DEV
3.5R
LPF
IC308
DEV
NJM2902V
5C
5R
5T
VR301
DQT BALANCE
TO
56
AMP AMP DRIVE AMP
Q13 Q15 Q18
2SC5108 2SC4988 2SK3475
5T 5T
DET APC SW
Q23
IC3
DTA
NJM2904V
144EE
5T
B
SW
APC
Q17
DTC
Q14 114EE
DTC
114TE
THERMAL
5T
PROTECTION
5T
1ST MIXER BPF AMP
Q12 Q20
3SK320 3SK274
TUNE TUNE
5R 5R
VOLUME
MUTE SW AUDIO AMP
Q313 IC309
WIDE/NARROW SW
22SK1824 KIA6278F
Q316
DTA
144EE
MUTE
WNRC
SW
Q321
HPF
KTA1298
B
Q314
2SC4617
POWER SW
SB
B
DET
D301
VOX
MA742
LIMITER AMP
HPF
IC308
NJM
2902V
5MS
SW DET
WIDE/NARROW SW
Q319
Q318
DTA D307
5C
2SK1824
1SS372
144EE
MUTE
WNTC 5R
TX-RX Unit X57-6243-00 A
ANT
FINAL AMP ANT SW LPF
D24
Q22
D27
2SK3476
HVC131
SW ANT SW
D25
Q24 D26
DTC144EUA HSC277
X2
B
BATT
D3
ISR154
BPF
REVERSE
PROTECTION
SP
MUTE SW
Q324
2SK1588
SW SW
Q323 Q320
DTC DTC
144EE
144EE
AFCO
16KEY
F
KEY DAIC
AMP SCAN
LOW
Q317
2SC4738
MIC
MIC500
SW AGC/MUTE
D308 Q322
DAN222 2SC4919
TX-RX Unit X57-6243-00 B X41-3583-00