Kenwood TK-2202L Service Manual page 31

TK-2202L
SCHEMATIC DIAGRAM
TX-RX UNIT (X57-6870-21)
R9 0
R10 0
R11 0
R5
100k
PLL SYSTEM
IC1
MB15A02PFV2E1
RIPPLE
FILTER C30 C40
4.84V
D1
470p 4p
R8 C29 L8 C43
MA2S111-F
C4 0 18n
470p 15p
4.76V
0.01u
R15 R16 R21
220 560 680
R7
100
VR1
68k
R32-0736-05
4.83V
F401 X1
L77-1931-05 R17
2.5A
F53-0324-05
L401 R1 R2 R3 C3 1 4 4.72V 100
BATT VC VCC
22k 10k 33k 1u
12.8MHz 0.7V
2 3 L1 R12 C25 C34
BATT C17 R14
GND oUTPUT
4.7u
2.2k 47p 330k 2p 1000p
REVERSE TXCO
PROTECTION Q1
KTC4082
TRIPLER
CN401
E40-6573-05
1 B
SB
2
3 AFI
4 AFO
5 GND
6 EN1
7 EN2
8 GND
9 EN3
10 EN4
11 EN5
R436
5T SW
0
T:4.99V
R403 Q403
CPH3317
100
5V PROTECTION IC402
XC6204B502MR
D401 5.00V Q404 5R SW R:5.01V
RB521S-30 1 5 CPH3317
VIN VoUT
R:7.56V 2
T:7.26V VSS
3 4
IC401,402
CE NC
VOLTAGE
REGULATOR/5V
5C SW
IC401
R:4.83V
XC6204B502MR Q405
R:7.28V 4.96V DTA123JE
1 5
T:6.80V
VIN VoUT
2
VSS
3 4
CE NC
L402 C430
0.01u
VOLTAGE DETECTOR/RESET
IC403 BD4840FVE
R407 1 5
VoUT VDD PTT SW1 SW2
330k 2
SUB
3 4
NC GND
ON:4.92V ON:4.92V
OFF:0.01V OFF:0.01V
VOLTAGE
DETECTOR/INT
IC404 LED/RED LED/GREEN
BD4845FVE
D403 D404
1 5 B30-2156-05 B30-2157-05
R405
VoUT VDD
330k 2
SUB
3 4
NC GND
LED SW LED SW
/RED Q401 Q402 /GREEN
DTC114EE DTC114EE
T:3.42V
L19
CV D4,7
220n
FREQUENCY
CONTROL
/TX VCO VCO OSCILLATION (TX)
C64
L24 L10 D7 4p VCO/TX
R22 C52 L16 C73
0 180n 1SV325F 180p 39n Q4 0.5p
2SK508NV(K52) (B)
2.73V
L9
33n
MODULATOR
C50
10p
Q2
TX MODULATION
2SC5108(Y)F
PLL IC F_IN AMP
R25 R26 C45 R31 L12 R34 R36
22k 10k 1u 560k 4.7k 270k
C902 R30
R:3.46V
1u 12k L18
R37
220n
100
VCO OSCILLATION (RX)
C65
L11 D9 C55 5p VCO/RX C74
L17
27n
100n 1SV325F 120p Q3 0.5p
2SK508NV(K52)
D5,9
FREQUENCY
CONTROL
/RX VCO
CURRENT
STEERING
QTTCXO QTTCXO
PLL_UL PLL_UL
PLL_STB PLL_STB
PLL_DAT PLL_DAT
PLL_CLK PLL_CLK
B B
5T 5T
OSCIN OSCIN
SP1 SP1
SP2 SP2
5R 5R
5C 5C
EN1 EN1
EN2 EN2
EN3 EN3
EN4 EN4
EN5 EN5
R447
4.7k
VCC VCC
VSS VSS
R421
51 25
52 OPTDET 24
1k
AF_CONT
53 23
DTRLOADN STD
54 QTVCO 22
DIR
55
21
TDATA/DTRCLK
56 20
DI/O
57 19
SCLK
58 18
RDF/FD
4.95V 59 17
TCLK/DTRDO
VCC VCC 60 16
VCC INT
61 15 R419
VCC
62 MICROPROCESSOR
VSS VSS VSS 14 47k
VCC
CP404 63 GND IC405 13
XIN
64 30622MCAC02GU 12 L404
GND VSS
65 11
47Kx2 XOUT
66 10
RESET BSHIFT ON:4.95V
67 9 OFF:0V
68 8
BSHIFT
69 R420
7
GND BEAT SHIFT SW
70 6 47k
BYTE
71 5
EEPCLK
LEDTX LEDTX 72 4
LEDTX EEPDAT
LEDRX LEDRX 73 3
LEDRX
SIDE1 SIDE1 74 PF1 2
DTMF
SIDE2 SIDE2 75 1
PF2 PCTV EEPROM
IC406
BR24L08F-W
R415
1
A0 VCC
47k R416
C431 2
A1 WP
47k
0.01u 3
R:3.70V
A2 SCL
5T_C 5T_C T:3.57V 4
5R_C 5R_C GND SDA
5C_C 5C_C
RESET RESET
INT INT
R404
470k
4.96V
AF_CONT
OPTDET
PTTSW PTTSW
5M 5M
SB SB
4.74V
D101,202
R40
IC2 TX/RX T:1.11V
100 UPB1509GV RF SW
4.6V
RF BUFFER AMP
1 8 C87 D101 C101 R103
Q6 C81 VCC1 VCC2 2.2V
0.72V 2SC5108(Y)F C78 15p 2 7 C83 R:1.65V 10p HSC277 1000p 0
T:1.05V
IN OUT
33p C82 3 6 1000p R:0.1V
Q9
IN SW2 2SC5108(Y)F T:1.88V
1000p 4 5
GND SW1 RF AMP
3.74V
VCO 1/2 DIVIDER
L202
DC SW/TX VCO
39n
Q5
R:2.84V
DTA143TE T:0.03V C233
R:4.97V
T:0.59V 2p
(B)
L22
4.0V
R:0.60V
T:4.95V
Q7 APC SW
DTA143TE
DC SW/RX VCO
RIPPLE FILTER
Q8
2SC4617(S)
DCSW DCSW
B B
5T 5T
APCSW APCSW
OSCIN OSCIN
SP1 SP1
TH_DET TH_DET
SP2 SP2
5R 5R
5C 5C
R901 MOD MOD
4.7k
W/N SW/TX
Q901
2SK1824-A
RX_W/N RX_W/N
TX_W/N TX_W/N
DTRLOADN DTRLOADN
STD STD
C312
12p
TDATA/DTRCLK TDATA/DTRCLK C315
DI/O DI/O
1u
10 32
TCLK/DTRDO TCLK/DTRDO DTRLoADN
TCLK/DTRDo AGND
11 31
TDATA/DTRCLK RXIN
12 30
DI/o RXINo
29
RDF/FD RDF/FD R306 13 IC301
RDF/FD FILTERo
AQUA-L
SCLK SCLK 1k 14 28
R422 X2 SCLK
BEAT SHIFT SW AUDIO PROCESSOR EXPoUT
L78-1414-05 15 27
1k 7.3MHz Q408 DIR DIR
C432 R423 C435 DIR RXAFIN
2SK1830F 16 26
Q407
XoUT RXAF
2SK1830F 5p 0 5p
3.6864 MHz CLK
R426
XIN XIN
0
R301 C302 R304
EXTLIMIN EXTLIMIN
47k 0.01u 560k C309 C313
82p 120p
R310 R313
8 R308
C311 390k 100k
AMP3O AMP3O
7 0
R354 R355 C354 R357
R424 1u
6 47k
D301 10k 10k 0.1u 0
5
RB706F-40
R425
DETECTOR
47k
PCTV PCTV
TXD TXD
QT/DQT_IN QT/DQT_IN
MIC_MUTE MIC_MUTE
BUSY BUSY
RSSI RSSI
AF_CONT AF_CONT
OPTDET OPTDET
PTTSW PTTSW
5M 5M
SB SB
TX DRIVE AMP TX FINAL AMP
R:7.68V
T:1.88V
T:4.9V T:7.30V
R108 C108 R112 C110 L104 Q103 R120 C120 L107 Q106
2SK2596 2SK2595-E
1.5k 39p 18 27n 0 27n
RF AMP 1000p 1000p
C104 Q102
2SC4926YD
39p
L205
68n
C237
5p
(B)
RX LO1
5T
T:2.7V(H)
Q104
DTC114EE 1.99V(L) R135
150k APC SW
Q109
C140 IC101 DTA144EE
TA75W01FUF
100p
1 8 C146
APC PROTECT OUT1 VCC
R130 2 7 1000p
IN1- OUT-B
150k 3 6
(D) IN1+ IN2- APC SW
4 5
R131 VEE IN2+ Q108
APC SW 2SK1824-A
R141
Q105 150k
2SK879(Y)F (D) 100k
COMPARATOR
(APC)
R134
150k (D)
APC SW
Q107
DTC114EE
5R
MCF
XF201
L71-0619-05
38.85 MHz
C231
oUT IN R219
2 1 0.01u 560
CF201
L72-0973-05
450 kHZ
C213
0.1u
R316 C320
R208 C210
120k 0.01u PCTV
R319 82k 470p
W/N SW/TX
56k
Q301
DTA114EE FM IF
SYSTEM
R322 IC201
TA31136FNG
180k
R323
56k
R324 R329 C329 R210 C219 R216
100k 82k 3.3k 33p 120k
1u
R325
IF AMP
100k Q203
C328
W/N SW/RX 2SC4649(N,P)
R211
390p Q202
DTA144EE 3.3k
R321 C322
SP2
220k 0.015u W:0.011V
R326 N:4.98V
C325 0
0.1u
C326 R331 C331
1000p 39k 0.1u
RXAFO RXAFI
R330 C330 R446
3.3k 0
1u MICO MICI DETECTOR ISOLATION
MIC AGC
D302 D303
R445 Q302
RB706F-40 DAN222
R318 2SC4919
C317 R328
0
1.2k
0.1u 10k
R314 C316 R332 C333
10k 0.1u 15k
C310 R311 R360 0.1u
0.068u 12k 0
TXD
AF_CONT
OPTDET
PTTSW
5M
SB
Note : The components marked with a dot ( ● ) are parts of layer 1.
ANT SW D103 L119
L117 L118
7T 7T 6T
HVC131
L113 L114 L115 C144 D104 C151 C154 C156 C159
3T 5T 3T 1000p 10p 12p 7p
82p HVC131
ANT SW
RX LO1 C160
5T L110
56n 33p
ANT SW ANT SW
5R
BPF
R:4.98V
L206
180n
RF AMP
R220 MIXER
R:2.48V Q205
Q204 R:4.8V 3SK318 R:4.92V
560 3SK318
C238 C245 R227 R291 C250 C253 R231
R239 C263 R240 C267 C268
470p 0 0 4p 4.5p 47
12p
C243 R:0.75V 47 10p 0 3p 3p
R:2.48V
1000p R:1.76V
R:0.99V
CN201
E23-1278-05
PCTV
D205,206
D203,204
RF BPF TUNING
RF BPF TUNING
C334 R343
0.1u 470k
AF AMP
IC302 SP MUTE SW
R:0.3V(MUTE ON) TA7368FG Q306
DC SW
7.3V(MUTE OFF) 2SK3577-A C345
1 10
R:7.52V Q304 T:0.3V NC1 PoUT
2SA1362(GR)-F
T:7.31V 2 9 100u6.3
VCC PW-GND
3 8
NC2 PRE-GND
SP MUTE SW
R336 4 7 C338 100p
SP2
VIN PHASE Q316
1k 5 6 C339
R337 2SK3577-A
RIPPLE NF
R334
100 10u6.3
47k
C340 Q305
DTC144EE
R:7.3V(MUTE ON) 0.1u
0.3V(MUTE OFF) DC SW/SP MUTE
Q303 T:7.3V
DTC144EE
DC SW/SP MUTE
R345
R341 10k 100
R346 100
TXD
R344
1k
AF_CONT
OPTDET
PTTSW
5M
SB
L301
ANT
CN13
C271
11p
J301
PTT/RXD E11-0707-05
MIC
MICIN
OPTDET
5MS
AE
TXD
NC
SPO
SPI
MIC301
T91-0649-15