Kenwood TK-3148 Service Manual page 59

F
TX-RX UNIT (X57-6413-01) (A/3)
UL
CP
DP
EP
4.87V
X1
L77-3028-05
1 4 C2
Vcont Vcc
1000p
L1
2 3
GND
OUTPUT
4.7u
16.8MHz
5C
SAVE
INT
5TC
5T
+B
5R
SB
5MS
5M
CLK
EVSS
5CNS
V REF
RESET
5RC
CN300
1 XOUT
2 GND
3 AFCLR
3
4 AFRDT
4
5 AFRTM
5
6 AFTRD
6
7 AFMSKE
7
8 CLK
9 AFDAT
9
10 AFREG2
10
11 AFREG1
11
12 AFSTB
12
13 5CNS
14 MMUTE
14
15 5TC
16 5C
17 GND
18 MICI
19 PTT
20 ME
21 ME
22 TXHSD
23 GND
24 TXAF
25 RXAFI
26 5RC
27 HSDIN
28 RXAFO
29 GND
30 GND
RXAFO
RESET
5RC
ME
PTT
MICI
G
SCHEMATIC DIAGRAM /
5.02V
R40
150k
10 16
DGND DVDD
9 17
PLL IC
DGND DVDD
R36 C8 8 18
IC1
REFin VP
1k 0.01u 7 ADF4111BCP7 19
AVDD Rset
R38 6 20
AVDD CP
47
AF AMP,FILTER 5.04V
IC300
TK62012F
AF BUFFER
1 8 C302
VDD
2 7
0.1u
2.00V
3 6
4 5
VSS
2.01V
HSDI1
C730
2.2u16
C306
R308
4.7k
0.1u
V_REF
LSD BUFFER
TO TCXO
IC302
TK62012F
1 8
VDD
2 7
3 6
4 5
VSS
AF AMP,FILTER
5.05V
HSD LPF
5.04V
H
C15 C20
5p 3p
R44 R45
100 100
D13
F-IN FILTER
T:0V
SHIFT SW
R:4.89V
D11,12
PLL LOCK SPEED-UP
D11
CV
MA2S077-F
D12
MA2S077-F
R3 R7 R8 R9 L7
0 0 1.5k 0
T/R
5C
SAVE
INT
5TC
5T
+B
5R
SB
5MS
5M
CLK
EVSS
5CNS
R326
AF AMP,FILTER
TUNE
HSD BPF
IC303
TK62012F
C313
1 8
100p
VDD
2 7 R316
R313 R315 3 6 100k
10k 4.7k 4 5
VSS
C390
5.05V
0.1u
5.04V
R320
56k
LSD SUM
C318
220p
IC305
TK62012F
R323 1 8
VDD
82k 2 7
3 6
4 5
VSS
2.01V AF AMP,FILTER
V_REF
LSD LPF
5.04V
R322
150k
IC306
R324
TK62012F
330k 1 8
VDD
C325
R325 2 7
330k 3 6
0.012u
4 5 R330 R334
VSS
180k 180k
AF AMP,FILTER
C322
0.01u
4 3
2
VSS
5 1 R327 R333
VDD
47k 47k
IC304
TC75S51FE(F)
AF AMP,FILTER
RXAFO
HSDI1
RESET
5RC
ME
PTT
AFOUT
MICI
I
TK-3148
原理图
R47
100
C25
R11
100k
1.5p
Q1
2SC5488A-H
DOUBLER
D14
F-IN FILTER
SHIFT SW
D2,4
RX VCO
D4
L10 C33 L16 C38
100n
22p 47n 3p(B)
1SV325F
RX VCO
OSCILATION
Q2
2SK508NV(K52)
POTENTIAL METER
IC307
M62364FP-F
1 24
VIN1 VIN8
2 23
VoUT1 VoUT8
3 22
VoUT2 VoUT7
0 4 21
VIN2 VIN7
5 20
VDD GND
R397 6 19
LD RESET
0 7 18
CLK VDAREF
8 17
DI D0
R319 C320 9 16
VIN3 VIN6
47k 0.1u 10 15
VoUT3 VoUT6
11 14
VoUT4 VoUT5
12 13
VIN4 VIN5
R328
100k
R340
10k
C330
R332 R341
470k 0.1u 10k
AF PREAMP
X300
9.8304MHz
L77-1810-05
5.0V
R348 1
4.7k 2
Q300
3
2SC4649(N,P)
BEET
4
SHIFT
SWITCH
J
R48 C60
0 10p
C43
0.5p(B)
T:0V
R:0.91V
T/R
5C
SAVE
INT
5TC
5T
APC
+B
5R
SB
5MS
5M
TUNE
CLK
DATA
EVSS
5CNS
5.04V
V_REF
DSTB
R342
22k
DSTB
LSDO
R343
BEEP
EVSS
10k
LSDI
HSDO
XOUT
XIN
BSHIFT
EEPROM
IC310
CAT24C16WI-G
5CNS
8
5MVCC
NC1 VCC
7
NC2 WP
V_REF
6
CLK
NC3 SCL
SPOUT
5
VSS SDA
HSDI1
RESET
5RC
ME
PTT
AFOUT
MICI
59
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