Kenwood TK-980 Service Manual page 32

TX-RX UNIT : TX-RX SECTION(X57-6520-XX) (A/2)
C320 C322
D401 1SS360-F R319
IC450
LMX2352TMX/NP 1k
2SA1832(GR)F
LD
C447
Q400 13 12 R316
IF_EN RF_EN
C460
R428 100 14 11 1000p 0
CLoCK Fo/LD
R318
0.01u R417 100 C449 56p
15 DATA 10
oSCIN
Q301
R418 100 16 9 C448 0.01u
EP LE oSCX 2SC3722K(S)
Q302
8
17 GND 2 CP 2SC3722K(S)
GND 3
CP C450 1000p
18 7 CP
DT FINIF FINRF
6 C451 100p
L313 19
FINIF FINRF
20 5
GND 4 GND 1
21 4
CPoIF
CPoRF
22 3
VPoIF VPRF
L1 R419 R420 23 2 R421 R422
X1 VCCIF VCCRF
L77-3028-05 4.7u
22 220 1 220 22
24 C307 L301 C309 L304 L303
C443 0.1u oUT1 oUT0 C455 100p
4.7n 2.7n 2.7n
5.06V C442 1000p C456 1000p 0.01u
PLL SYNTHESIZER
C441 100p C457 0.1u
R424 0 R426
16.8MHz
R425 0 0 RF AMP. Q300
2SC4226-A(R24)
R27 47k 9V AVR
5.09V RIPPLE
2.51V AMPLIFIRE IC16
IC1 FILTER
13.55V NJM78L08UA-ZB 9.05V 9.05V 7.94V
TA75W01FUF Q2
R170 2SC2412K(S)
C35 5 4 R26 3 IN OUT 1
100p 6 100k COM 0
3
2
7 2
8
1
2.51V
8.02V
CN7
W/N 1
T/R 2
MO 3
TO 4
BEEP 5
NC 6
PSW 7
DEO 8
MM 9
AFO 10
ME 11
MI 12
AHK 13
CURRENT PROTECTION
IGN 14
SB 15
SB 16 D24 MINISMDC07502F
8C 17
KEY 18
CK 19
DT 20
RSSI 21
LD 22
ES 23
EP 24
EN 25
APTT 26
CP 27
DTC 28
TXD 29
RXD 30
OE 31
FSW 32
E 33
RSSI
3.06V
R15
10k
5 4
R25 6 3
CN1
390k 7 2
1 R157 100
DEO
2 R1 1k 8 1
AHK/BUSY 3 R2 0
IGN
4
DI
5 5.09V
ME/AM 6 R94 0
IC2
MI/TXS 7 R3 100
PTT TA75W51FUF
8 R4 1k
SQ
AMPLIFIER
$R5
DEO RXD2 SQ2
CN2
1 R6 0
LOK/AM R7 0
MM $R84
R8 1k
LOK/DTC/TXS/FSW
3
CN3
1
HOR FSW
E
SB D1 D4 D2 D3 D5 D6 D17
3 DA204U DA204U DA204U DA204U DA204U DA204U DA204U
CN4
1 R9 0
LOK
R10 1k
RXD1
R11 1k C437
TXD1
3
1000p
D1-6,17 5.09V
SURGE ABSORPTION
SB GND RXD1 LOK SQ TXD1 TXD2
X57-6520-XX (A/2) R306 R309 R310 R312 R315 R318 C309 C310 C320 C322 C325 C466 C467 C468 C469 C471
C465 C470
-12 TK-980 1k 33k 10k 470 47k 390 1p 2.5p 6.8u10 6.8u10 0.68u20 NO NO NO NO NO NO NO
-13 TK-981 1.8k 100k 47k 2.2k 10k 330 0.5p 1.5p 1u10 1u10 0.47u25 100p 100p 100p 100p 100p 100p 100p
A1 X58-4530-XX SUB UNIT
R103
0
C104
R114 CN100
1
0
C115 C109
Q100 E
2SC4226-A(R24)
3p 3p HT
DOUBLER
BUFFER AMP
E
Q102
NC
2SC4226-A(R24)
8CL
MD
CV
VCO MODULATION
R102
7
1k
R101
C113
0
VCO
Q101
R113 C118 2SK508NV(K52) L103 C101 D101 L100 R100
47 0.75p 22n 1SV283F 1.5u 0
D100,101
VCO CONTROL
CV CV CV
8CL 8CL 8CL
HT HT HT
EC EC EC
MB MB MB
W/N W/N W/N
T/R T/R
T/R
MO MO MO
TO TO TO
BEEP BEEP BEEP
PSW PSW PSW
AFO AFO AFO
IGN IGN IGN
SB SB SB
8C 8C 8C
KEY KEY KEY
CK CK CK
DT DT DT
RSSI RSSI RSSI
5C 5C 5C
ES ES ES
EN EN EN
APTT APTT APTT
8.02V
OE OE OE
R39 100 IC4
SWITCH
TC4S66F-F
5
1 VDD
4.34V 2
4 AF SW
R14 3
Q1
VSS 2SK1824-A
47k
R17
C29 R33
5 4 0
6 3 10u10 470k
7 2 R44 C36
R408 8 1 150k 10u10
0 5.09V
IC3
TA75W558FU-F
C31 R37
AMPLIFIER
DI DI 0
10u10
Q4-6
R58
DC SW
HOR HOR
1k
Q5
Q6 LTC014EEBFS8
5V AVR
LTC014EEBFS8
5.09V IC9
TA78L05FF R50
Q4
DTD114EK
R70 3 10k
1 OUT IN
0 COM
2
5C
SQ SQ
AHK AHK
LOK LOK
IGN IGN
X58-4530-XX C101 C104 C105 C113 C114 L102 L105 L106
C107
-10 TK-980 8p 1.5p 6p 0.5p 4p 1000p 12n 39n 27n
-11 TK-981 4.5p 1P 4p 0.75p 5p 470p 10n 18n 15n
RF SW
2SC3356-A(R24)
D18
C234 C401 C235 C402 C403
2p(B) 2p(B) 2p(B) 2p(B)
HVC131
TP1
BUFFER AMP.
RF SW
Q7
2SC4226-A(R24) D19
C59 C62
R87 C55
3p 3p
HVC131
0 3p
C158
R223
4p
1k
R:8.00V
T:0V DC SW DC SW
Q11 Q12
KTA1298-P(Y)
C159 2SB1132(Q,R)
4p
R:7.98V
R82
T:7.21V
R:7.31V
T:7.95V
Q33
LTC044EEBFS8 DC SW
R83
DC SW Q13
LTC014EEBFS8
C175
5.01V R:4.83V
T:0V
100p
Q10
LTC014EEBFS8
8.02V
DC SW
8.02V 8C 8C
KEY KEY
T/R T/R
L6
R:0V L34-4787-05
T:4.86V
R:4.81V
C157
T:0V
C104 0.1u
0.01u
RX MUTE
Q18
2SK1824
R S I S R S I S TA31136FNG
FM DEMODULATION
AF SW
C103
Q32
C107 2SK1824-A R121 0.1u
4.7k
10u10 CF1
R158 C461 C462 R159
0 0.1u 0.1u 0
R:1.38V
T:2.13V
DM DM
POR POR
SB SB
W/N W/N
IGN IGN
OE OE
ES ES
DT DT
CK CK
5C 5C
8.02V
D/A CONVERT
IC5
M62363FP-F C43
SHIFT/STORE
1 24 100p REGISTER
VIN1 VIN8
23
2 IC7
VOUT1 VOUT8
3 22 BU4094BCFV
VOUT2 VOUT7 AMPLIFIER
4 21 C51 1 16
VIN2 VIN7 IC6 STRB VDD
5 20 2 15
VDD GND IC17 TA75W558FU-F
100p DATA OE
6 19 TC75SS1FE(F) 3 14
LD RESET R42 CLK Q5
18 1 8 13
7 4 oUT 3 4
CLK VDAref IN- Q1 Q6
8 17 2 33k 2 7 5 12
DI DO VSS Q2 Q7
9 16 5 1 6 11
VIN3 VIN6 VDD IN+ 3 6 Q3 Q8
10 15 7 10
VOUT3 VOUT6
4 5 Q4 Q'S
11 14 8 9
VOUT4 VOUT5 R:2.31V VSS QS
13 T:3.61V CODE4
12
VIN4 VIN5 CODE3
SQ SQ
AHK AHK
LOK LOK
IGN IGN
HNC HNC
PSW PSW
BPO BPO
X57-6520-XX (A/2) A1 R118 R184 C100 C170 C184 X57-6520-XX (A/2) XF1 CF1 R79 R82
-12 TK-980 X58-4530-10 3.9k 0 10u10 7p(B) NO 1 - 2 TK-980 L71-0525-05 L72-0998-05 3 9 150
-13 TK-981 X58-4530-11 NO NO NO 5p 10u -13 TK-981 L71-0583-05 L72-0986-05 18 270
RF AMP. C330 R258
RF AMP.
Q202 0
C249 C404 C405
10p 2p(B) 2p(B) C275
Q204
2SK2596-E R:0V
0.22u35
T:9.53V
C274
R:-0.36V 220p
T:5.73V
B B
R255 C97
22 1 1000p
APC DRIVE
R256
Q19
22 1 2SB1565(E,F)
R:-0.36V
T:7.82V
Q17
2SC4116(GR)F
APC
PRE DRIVE
8T 8T
8C 8C
KEY KEY
8R 8R
R:7.72V
T:0V
R:1.35V
L10 C153
T:0V C219
Q203
1u MIXER
10p 3SK255-A
D G2
TP3
G1
R:0.73V S
IC11
T:0V
XF1
C92 R100 44.85M R96
R:0.95V R:0.95V
0.01u T:0V T:0V
Q15
2SC2059K(P) DC SW
C96 IF AMP. Q205
18p LTC044EEBFS8
8R 8R
C171
5.02V
100p
PC PC
SB SB
5C 5C
IGN IGN
5.09V
13.55V
IC10
AF AMP
LA4422-E
R:5.03V
T:0V
ST
C63 R76
SHIFT/STORE
REGISTER 15k
1u 7.50V
IC8
D16
BU4094BCFV
REVERSE
1 16 CURRENT
STRB VDD
2 15 PREVENTION
DATA OE
3 14 LTC014EEBFS8
CLK Q5
13
4
Q1 Q6
5 12
Q2 Q7
6 11
Q3 Q8
7 10
Q4 Q'S AF MUTE
8 9
VSS QS SWITCH
Q9 13.27V
Q8 LTA014YUBFS8
DTC363EU
AF MUTE
R60
SWITCH
4.7k
CODE2 CODE1 OPT
D11 13.34V
DC SW
DAN202U
IGN IGN
TOF TOF
PSW PSW
PA PA
R83 R96 R100 R323 C84 C216 C219 C234 C253 C276 C330
150 330 330 47 12p 1.5p(B) 11p 15p 6p 4.7u20 15p
270 180 150 68 22p 1p(B) 12p 100p 8p 2.2u20 47p
IC400
POWER MODULE
1 2 3 4
R247
C268 L221
39
3.5T
L229 C267 D208 C269
2T 47p L709CER-T 10p
RF SW
R183
R:13.58V R:13.58V 0.22 2
R103 T:12.46V T:12.46V R127
22k 0.22 2
CURRENT
IC13 DETECTOR SW
NJM2904E-ZB
Q20
LTA044EUBFS8
1 8
AOUT +V
PRE CURRENT
2 7 R104
A-IN BOUT DETECTOR SW
R:-0.37V R:-0.37V
3 6 47k R122 Q21
T:7.82V T:7.82V
A+IN B-IN LTC044EUBFS8
C87
4 5 2.7k
-V B+IN
100p
DC AMP R112
4.7k
DC SW
Q34
2SC2712-F(GR)
8.02V
R:7.27V
TP2 RF AMP.
T:0V
Q201
2SC4094(R37)
L231 L230
C213 R212 C212 L208 C209 C207 L223 L222
4.7n
1p 5.6 5p 100p 100p
R:0.78V
T:0V
D209,210
LIMITER RF SW
EXCESSIVE 5V AVR
INPUT
D200
PROTECTION IC12
HSM88AS-E 8.02V IC14
TA78L05FF 8V AVR
KIA7808API
5.09V 1 3 2 OUT 1
OUT IN IN
COM 9V AVR GND
2 3
13.55V
R:13.56V
5.03V 13.58V T:12.91V C142 470p
D20 R128 R152 R151 SB SW
4.58V
Q27
1SS355 22k 0 0 2SA1641(S,T)
13.58V
REVERSE D21
CURRENT UDZW5.6(B) D26,31
PREVENTION
VOLTAGE REVERSE 13.03V D32
12.82V 12.82V
13.32V REFERENCE CURRENT SURGE ABSORPTION
D26 R143
PREVENTION
1SS355 1k
D37
REVERSE PROTECTION
ON :0V
DC SW
OFF:13.40V R106 1
C89 0
DC SW
1 14
Q22 R144 470p
22k Q1 VDD R153
2 13
Q25 Q1 Q2 3
3 12
LTA014EEBFS8 0
CLK1 Q2
4 11
R1 CLK2 Q28 R109
5 10 Q30 RT1N141U-T111
D1 R2
6 9 LTA014EEBFS8 0
DC SW DC SW
S1 D2 DC SW
Q26 7 8
VSS S2
LTA014EEBFS8
0V
IC15
TC4013BF(N)-F Q31
13.20V LTC014EEBFS8
POWER SUPPLY LOGIC
CIRCUIT CONTROL DC SW
R134 47k
13.30V
X57-6520-XX (A/2) L206 L223 R248 R249 C176 C178 C179 C210 C255 C266 C268 C273
IC400 L222 L230 L231
-12 TK-980 RA20H8087M 8.2n L34-1307-05 L34-1307-05 L79-1910-05 L79-1910-05 120(1/2w) 120(1/2w) 47p 47p NO 4p 10p 3p 47p 3p
-13 TK-981 RA20H8994M 6.8n L34-1313-05 L34-1313-05 L79-1911-05 L79-1911-05 150(1/2w) 150(1/2w) 100p NO 100p 3p 4p 1p 1p 2p
ANT
DC 13.6V
CN5
PA
SPO
SPI
J1
EXT.SP
CN6
SP
E