Block Diagram - Kenwood TK-2118 Service Manual

MODEL TX-RX Unit
TK-2118: C X57-6233-00
PLL IC
PLL DATA
EP
7.3728MHz
Q303 DT
CK
DTC
114EE
CLOCK
SHIFT
CPU
CHANNEL SW
LCD
IC300
Q302
M38287MBL271GP
DTC114EE
SW
D304
D305 EEPROM
SCL
SDA
IC302
24LC16BT
TX-RX Unit PTT
X57-6233
-00 C
INT
IC303
RN5VL
MONI
30C
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-2118
DEV
AMP
D12
DEV
MA25304
Q3
2SC5108
LOOP FILTER F.CONT
D4,D8
HVC365
IC1
MB15E035L D6,D9
1SV290
3.5C
UL 2ND LOCAL
F.CONT
TCXO VR1
D5,D10
D7,D11
X1 VCCN 1SV290
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
X4 2ND LOCAL AMP
VCCN 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 AVR/SW
Q305 Q309
UMG3N DTA123JE
Q306 Q312
UPA672T DTC144EE
SB
Q307
FP210
Q308
UPG3N
TK-2118
BLOCK DIAGRAM / 方块图
BUFF AMP AMP LO.SW
TX VCO
D14
Q7 Q11 D15
Q5
2SC5066 2SC5108 2SC5108 RSC277
(0)
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
IF AMP MCF
IC2
Q6
TA31136FN
KTC4082
51.2MHz
51.65MHz
5R
SM
3.5R
BASE BAND SECTION
IC307
IC306
LPF
NOISE AMP
FLAT AMP
Q1
2SC4738
LPF
LPF
NJM2904V
HPF
HPF
LIMITER
D306
TI
DA221
NJM2902V
TIBI
3.5C
VR302
3.5R DEV
LPF
IC308
DEV
NJM2902V
5C
5R
5T
VR301
DQT BALANCE
TO
56
AMP DRIVE AMP
Q15 Q18
2SC4988 2SK3475
5T
DET APC SW
Q23
IC3
DTA
NJM2904V
114EE
5T
B
SW
APC
Q17
2SK1824
Q14
DTC
114TE
THERMAL
5T
PROTECTION
5T
1ST MIXER BPF AMP
Q12 Q20
3SK320 3SK298
TUNE TUNE
5R 5R
VOLUME
MUTE SW AUDIO AMP
Q313 IC309
WIDE/NARROW SW
22SK1824 KIA6278F
Q316
DTA
144EE
MUTE
WNRC
SW
Q321
HPF
B KTA1298
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 X57-6233-00 A
ANT
FINAL AMP ANT SW LPF
D24
Q22
D27
2SK3476
HSC277
SW ANT SW
D25
Q16
D26
DTC
HSC277
144EUA
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 X57-6233-00 B X41-3583-00