Kenwood TK-3212L Service Manual page 29

F
TX-RX UNIT (X57-7130-XX)
5C
C40
3p
L8 C43 L9
18n
18n
10p
Q2
2SC5108(Y)F
PLL IC F_IN AMP
R16 R21 R22
560 680 0
4.9V
0.71V
C17 C25
R14
OSCIN
330k 2p
47p
TRIPLER
Q1
KTC4082
QTTCXO
PLL_UL
PLL_STB
PLL_DAT
PLL_CLK
5C
B
EN1
EN2
5T SW
Q403
CPH3317
5R SW
RT1P237U-T111
5C SW
Q405
RT1P237U-T111
LED/RED LED/GREEN
D403 D404
B30-2156-05 B30-2157-05
ON:4.92V ON:4.92V
OFF:0.01V OFF:0.01V
Q401
Q402
PTT
RT1N141U
RT1N141U
LED SW LED SW
/RED /GREEN
SW1
SW2
BATT
RESET
INT
5M
DI
CL
CE
DO
SB
G
SCHEMATIC DIAGRAM
D2,4,6,7
CV
FREQUENCY
CONTROL HVC376B
2.74V
/TX VCO
L24 L10
100n
HVC376B
C50
10p
R25 R26 C45 R31
22k 10k 470k
1u
C902
R30
33k
1u
L11
100n
R17
100
C34
1000p
T:4.99V
Q404
R:5.01V
R:4.83V
L402
AUX
PTT
GND
R437
SW1
47k
R438
SW2
47k
H
L19
D6
220n
TX VCO
D7 * C52 * C64
* L16
VCO/TX
Q4
2SK508NV(K52)
MODULATOR
TX MODULATION
L12 R34
R36
470k 270k
D3,5,8,9
FREQUENCY
L18
CONTROL
/RX VCO
D8 220n
RX VCO
HVC376B
D9 C55 * L17 * C65
*
HVC376B
VCO/RX
Q3
2SK508NV(K52)
R421
1k
CP406
1Kx2 51
52
OPTDET
53
DO
AF_CONT
54
CP407
CE
1Kx2
55
CL
56
DI
57
58
59
4.95V
60
VCC
61
C430 MICROPROCESSOR
62
VSS
63
0.01u
GND
30620MCP422GU
64
GND
65
CP404
66
47Kx2
67
68
R470
69
AUX
70
1k
71
EN2
72
LEDTX
73
LEDRX
74
SIDE1
PF1
75
SIDE2
PF2
R415 47k
R416 47k
X57-7130-XX L16
-12 K,M 22n
-13 K2,M2 18n
I
TK-3212L
R40
RF BUFFER AMP
100
T:3.37V
0.72V
2SC5108(Y)F
C73
0.5p
(B)
Q5
RT1P430U
DC SW/TX VCO
L22
R:3.4V
R37
Q7
RT1P430U
100
DC SW/RX VCO
2SC4617(S)
C74
0.5p
CURRENT
STEERING
25
24
23
DTRLOADN STD
22
QTVCO
DIR
21
TDATA/DTRCLK
20
DI/O
19
SCLK
18
RDF/FD
17
TCLK/DTRDO
16
INT
R419
15
VCC
14 47k
VCC
13
IC405
XIN
12
VSS
11
XOUT
10
RESET
9
8
BSHIFT
R420
7
GND
6
47k
BYTE
5
EEPCLK
4
EEPDAT
3
2
DTMF
1
PCTV
C431
0.01u
4.96V
L17 C52 C55 C56 C58 C61 C64 C65 C67 C457
27n 11p 11p 2p 6p 3p 4p 6p 5p NO
22n 12p 12p NO 9p 4p 5p 5p 7p 470p
J
Q6
3.7V
R:4.97V
T:0.58V
4.0V
R:0.59V
T:4.94V
RIPPLE
FILTER
Q8
DCSW
APCSW
OSCIN
5C
B
5T
5R
RX_W/N
TX_W/N
DTMF
DTRLOADN
STD
DIR
TDATA/DTRCLK
DI/O
SCLK
ROF/FD
TCLK/DTRDO
XIN
XOUT
BSHIFT
EEPCLK
EEPDAT
RSSI
BUSY
THM
VOX
5M
AFCONT
OPTDET
RXD/PTT
TXD
PCTV
MIC_MUTE
QT/DQT_IN
PTTSW
SB
C458
NO
470p
X57-713 2/4