Kenwood TK-7160 Service Manual page 52

TX-RX UNIT (X57-7102-70)
R424
470 CV 5.01V
C445
VOLTAGE
DROPPED 4.5p BUFFER AMP
D421 R421 Q421,422 RX VCO 5.92V 1
CHARGE PUMP RX VCO R:5.98V Q441 R:1.15V 0.76V Q446
HZU5ALL 8.2k Q421 D442 2SK508NV(K52) C447 2SC5108(Y) C469 C470 2
2SA1832(GR) R426 R427 R429 L421 L441 C441 L443 6p
Q422 1k 2.7k 1.5k 270n 30p 33n 0.3p 2p 3
R422 2SC4738(GR) MA2S304 4
10k
RX VCO
R401 1k
R402 1k Q442 Q442,443
R403 1k R:0V 2SJ347 T/R SW
T:6.79V
6.88V
Q443
R443 KRX102U L452 R454
PLL SYSTEM 220 R445 0
IC401 1k
MB15A02
R:4.78V
C458 T:0V
X401 RF AMP TX VCO 4.31V Q444 10p T:0.93V
1.52V L77-1944-05 5.0V 4.93V 6.89V Q431 L446 D444 C453 L448 2SK508NV(K52) C460
R409 C413 C431 R431 2SC4649(N,P) 0.701V
VC 5C 270n MA2S304 47p 47n 0.5p
100 0.1u 1000p 0
16.8MHz L402 C414 TX VCO
GND XOUT
10u 10u6.3
RIPPLE TX VCO
TCXO FILTER
7.93V Q445 6.88V
MODULATION 2SC2412K
R408 R449 L451 R450
100k 100k 47k Q445
4.96V RIPPLE
FILTER
RIPPLE 7.58V
FILTER
TX/RX TX/RX
UL UL
C343 FM IF R:5.01V R:0.75V
SYSTEM C351 R353 R354 C350
68p
IC321 33p 10k 470 0.01u
R:7.21V TK14489V
L341 C341 1 20
50,4MHz OSC(B) RFIN
330n 100p 2 19
W:4.94V OSC(E) GND
N:0V WIDE 7.92V 3 NC Hy_C 18 Q351
4 17 2SC5488
R:0.64V Q341 CF331 C324 0.1u MIX_O SCAN IF AMP
2SC3928A L72-0993-05 5 16 R307
BUFFER AMP VCC SCAN
IF SW IF SW 6 IF_IN 15 270k
SQLIN
D332 D331 C323 0.1u 7 DEC1 14
MC2858 CF332 MC2858 C322 0.1u 8 FLAMPO 13
L72-0999-05 DEC2 R309
R323 2.2k 9 FLAMPI 12 AFV 3.3k
PH_S RSSI SQL AMP
R322 18k 10 11 Q301 R:4.28V
QUCO AFO 2SC2412K
FLAMPO FLAMPO C306
NARROW
1000p R:1.10V
R:1.63V
W:0V
N:4.94V L34-4554-05 L321
RSSI RSSI
NARROW WIDE NARROW WIDE
CK CK
DT DT
PLLE PLLE
FREQO FREQO
BLI BLI
PC/TVO PC/TVO
TVO TVO
5C 5C
DTM/HSDO DTM/HSDO
DETSW DETSW
D4-11 SCRSW SCRSW
SURGE C223 Q213 HSDSW HSDSW
ABSORPTION 2SK1830 AFW AFW
SB 0.1u
MIC MUTE 5.0V
5M
CN2 E40-5702-05
1 SB 1 14
TXAFO I/O1 VDD
2 2 13
TXAFI O/I1 C1
3 GND 3 O/I2 C4 12
4 DETO D4 D6 D8 D10 RXAFI 4 11
DA221 DA221 DA221 DA221 DETO RXAFO I/O2 I/O4
5 FNC1 R201 5 10
FNCI 5C C2 O/I4
6 FNC2 120k 6 C3 9
FNC2 C203 C222 O/I3
7 FNC3 FNC3 7 VSS I/O3 8
8 FNC4 C202 Q201 0.033u 0.1u
FNC4 DETO 2SC2412K
9 FNC5 4.7u6.3 IC213
FNC5 8C TX AF BU4066BCFV
10 FNC6 R:7.9V (DETO) QUAD ANALOG SW
FNC6
11 FNC7 FNC7 DUAL GROUND
12 FNC8 SENSE OP-AMP
FNC8 IC214 MC2858 D212
BA10358FV R216 MICMT1 MICMT1
1 8 R218
oUT VCC R217 0 LSDI LOSDI
CN3 E40-6292-05 2 7 820 100 D211 AGC 5.0V
1 IGN -IN1 oUT2 1SS372
IGN 3 6 OR GATE C215
2 DATAI +IN1 -IN2 5 MIC AMP
DATAI 4 VEE +IN2 0.1u Q241
3 DETO Q211 IC211 RT1P141U
DETO 2SC4919 C214 39p NJM2100V R212 W/N SW / TX
4 TXAFI TXAFI AGC/MIC MUTE 1 8 75k
5 TXAFO R221 R214 330k V+
TXAFO 5C L211 C218 R219 C227 R215 2 7
6 EMGMIC 4.7k
0.1u 22k 0.1u 2.2k 2.5V 3 6 R213
7 RXAFO R801
ALTI RXAFO 100k 4 5 75k
8 ALTI C219 R222
9 RXAFI IC215 DUAL GROUND 2.5V
RXAFI BA10358FV SENSE OP-AMP 0.1u 22k C213 C211
10 5C R223
5C 5 4 C220 0.1u 0.018u
11 8C 8C 6 +IN2 VEE 0.1u Q212 1k
-IN2 +IN1 3 2SK1830
7 2 EMERGENCY MIC
oUT2 -IN1
8 1 C230
5C VCC oUT
8.0V 10u6.3
MICEM MICEM
VCO 1/2 DIVIDER
IC402 RF SW
UPB1509GV (TX/RX) R:0V PRE DRIVE AMP
RF AMP 7.40V 4.86V T:5.61V T:1.21V Q501
8 1.2V Q447 D448 2SC3357(RF)
VCC1 VCC2 2SC4649(N,P) L457 C480 HSC277 C502 R503 C503
7 C475 C476 100n
IN OUT 18p 100p 1000p 18 100p
IN SW2 6 1000p T:0.43V
5 0.52V
GND SW1 RF SW
(TX/RX)
PRE DRIVE AMP
R:5.65V Q502
T:0V RD00HVS1 T:7.6V
C509
TEMPERATURE
COMPENSATION 15p
8T 8T
R463 C487
0 11p
TEMP1
TEMP2
TEMP DTECT
TX/RX TX/RX
UL UL
TP
XF351
L71-0624-05 R:4.37V
4 1 C349 R355 L352 R:2.53V
0.01u 330 560n MIXER D351,352 RF AMP Q353
R:6.30V Q352 R:6.96V 3SK318 D353,354
3SK318 RF BPF TUNING RF BPF TUNING
D G2 C367 R364 C371 R369 D G2
C380 C384
S R:3.19V 150p 0 2p 0 S G1
C359 R:1.26V G1 R:2.84V 100p 1.5p
8p
R:1.09V
C388 R378
4p 0
RECTIFICATION
R:1.69V
R:1.71V
C309 R381
100k
0.022u
D301
MA742
8TC 8TC
SQIN SQIN
RSSI RSSI
NARROW WIDE NARROW WIDE
CK CK
DT DT
PLLE PLLE
DTRLOADN
STD
TCLK/DTRDO
TDATA/DTRCLK
DETSW DETSW DIO
SCRSW SCRSW
HSDSW HSDSW RDF/FD
AFM AFM
NICMT1 MICMT1 DIR
LSDI LSDI
R126
1k
TEMP2
R269 R127
TEMP1
68k 1k
(D)
R263 C260
C264 330k
0.47u IC201 R130 0
2.5V 33p M62364FP
2.5V R207
DIGITAL L101
18k POTENTIO
METER
25 R259
1 AGNDIN 4.97V
2 DTRAIN 24 270k(D)
TXIN AMP4O 5.01V BSYLED
3 23 R258
TXINO AUDIO AMP4N TXLED
4 LIMLV PROCESSOR 22 C256 200k(D)
5 AMP4P 21 330p
EXTLIMIN IC241 AMP3O
5.0V 6 AQUA-L 20 R257 HSDI HSDI
MOD AMP3N
7 VDD 19 180k
AMP3P C255
8 DTRLOADN VSS 18 56p R276 R277 DTMF/MSK DTMF/MSK
9 17 22k 22k
STD XIN
R273 R254 R255 R256 EVLLD EVLLD
QT/DQT QT/DQT
180k (D) 470k 150k 47k
R209
R240 47k
0 R250
Q242 1M Q243
C251 R251 R252 C252 R253 2SC4649(N,P) C234 X241 C236 2SC4649(N,P)
R238 R236 IGNITION
0.047u 47k 100k 0.1u 5.6k 5p L77-1968-05 5p Q84
47k 3.6864MHz 47k KRC414RTK
R96
1M
ABS ABS
Q242,243
AQUA BEAT SHIFT
MICEM MICEM
LIMSW LIMSW
POWER MODULE
IC502
RA30H1317M-31
C555 C626 C613
18p ANT SW 3p 5p
C516 R517 L503 D602 C603 L603 L604
27p 22 MA4PH633 1000p 5T 5T
T:0.9V
R521
APC
1k VOLTAGE
DETECT
COMPARATOR(APC)
ANT SW D606
IC651 MA742
TA75W01FU
R523 1 VCC 8 T:7.94V
100 2 7
3 6 R653
4 5 0 R655 D609
VEE
47k 1SS355 T:9.0V(Hi)
R652 :3.6V(Lo)
COMPENSATION TEMPERATURE
VOLTAGE 10k
PROTECTION R659 R522 R661 R662 D610
10k 0 47k 0 1SS355
8RC 8TC 8RC 8TC
R125 R124 C293
47k 0 1u
C102
0.1u
SAMPSW AMPSW R:3.13V
C101 SPM SPM R281
1000p 4.7k
76 50
8RC AFM CP2 1k
77 8TC 49 FNC8
78 FNC8 48 FNC7
SBC FNC7
79 47 CP3 1k
LIMSW FNC6 FNC6
80 DTRLOADN 46 FNC5
81 FNC5 CP4 1k
STD FNC4 45 FNC4
82 44 FNC3
TCLK/DTRDO CEFLS
83 43
TDATA/DTRCLK FNC3
84 DIO 42
85 HSDSW 41 R115
RDF/FD DETSW
86 40 47k Q45,46
DIR SCRSW DC SW (8T) Q45
87 MICROPROCESSOR 39 R113 8T KTA1664(Y)
HSDI EMPFLS R46 T:7.87V
88 LSDI IC101 38 47k Q46
89 NC 37 KRC102S 1.5k D42 13.6V
TEMP2 NC RXD 1812L110PR
90 36 R112 1k R47 R45
TEMP1 HOOK HOOK 10k 47k
91 35 1.1A
BATT PTT TXD PTT CURRENT
92 RSSI 34 PROTECTION
93 RXD 33 R110 1.5k R111
SQIN TXD 5M
94 32 R109 47k 47k
AVSS BSYFLS 5M
95 31 R108 47k
96 NC CLKFLS
VREF FNC2 30 CP1 1k 7.98V
97 29 FNC2
AVCC FNC1 FNC1 8R
98 28
NC EEPDT Q43
99 BSYLED 27 Q43,44 2SA1745(6,7) VOLTAGE
100 EEPCK 26 REGULATOR/8V
TXLED EEPWP DC SW (8R) DC SW (SB)
8R IC41
7.93V 8C KIA7808AF
R44 R43 3 1 R105
OUT IN
Q44 4.7k 47k COM 1k
KRC102S
2
VOLTAGE
IC81 REGULATOR/5V
L77-1970-05 X86 AT24C12810SU18 IC42
BATT R91 5.01V NJM78L05UA
DETECT 0 1 8 5C
12.0MHz A0 VCC 1 OUT IN 3
2 7
D81,82 3 A1 WP COM
A2 SCL 6 2
R:3mV Q82,83 OVER VOLTAGE 4 5 R81 4.69V
BEAT SHIFT DETECTION GND SDA
R94 10k
1k Q83 Q82
2SK1830 2SK1830 EEPROM
R84 0
Q81 R83 0 R82
RT1N441U
OVER VOLTAGE C81 1000p 10k INT INT
DETECTION RESET RESET
SBC SBC
DISPLAY UNIT (X54-3510-10)
J1 E08-0877-05
MBL R1
SB
GND 100 SURGE
PTT ABSORPTION
ME D20
MIC MC2850
CM HOOK
KMO1
A <B C>
KMO2
CN1
E40-6268-05 CH CH
1 MIC UP DN
DI 18 KMO3
DO 2 17 ME
3 GND VOL VOL S
CE 16 UP DN
4 PTT
APC CL 15
VOLTAGE R4 3.3k 5 HOOK
DETECT CM 14 POWER 49
MBL 6 13 NC
D608 7 SB 50
MA742 BSYLED 12 KMI3
8 8C 51
TXLED 11 L1 KMI2
9 5C 52 KMI1
DISPID 10 10 NC 53
5C 9 NC
11 TX 54
8C 8 NC
12 BUSY 5.01V 55
SB 7 NC
POWER 13 6 BL 56 VDD LCD CONTROLLER
14 CM 57 IC1
HOOK R3 1k 5 VDD1 LC75854W
R2 100 15 CL 58
PTT 4 VDD2
R5 D3 D2 D1 16 CE 59
5M DA221 DA221 DA221 3 VSS
22k POWER 17 2 DI CP1 60 OSC
R1 0 18 DO R90-0724-05 61
1 DO
5M 62
CN1 E40-6005-05 DC SW DC SW CE
D1-3 Q7 63
2SC3928A 2SC3928A Q8 64 CL
SURGE DI
ABSORPTION
T:3.71V R21
T:3.74V BUSY:3.71V 0
T:1.71V R6 R7 R8
TX BUSY 10k 10k 10k
RED LED GREEN LED
D22 R14
B30-2151-05
47k
TX/RX LED
Q1
RN47A4
AF AMP
D1 D2 R17
KEY
AUDIO AMP BACKLIT SW 39
IC281 B30-2282-05 B30-2282-05 3.92V 7.84V
LA4600 D3 D4 KRA225S Q3
R10 R18
10 5 1
C287 J1 B30-2282-05 B30-2282-05 330 39
R283 R284 C283 R285 E11-0425-05 D5 D6 C23
68k 12k 0.22u 470u16 0 R11
1000p
B30-2282-05 B30-2282-05 330
AF MUTE E40-3246-05 CN5 D21
C291 D1-6 MC2850
Q281 DC CONTROLLER
DTC363EU 22p KEY BACKLIT
Q4
KRC102S
DC SW
Q282
KRC102S
AF MUTE
Q31
DC SW (SB)
C52
1000p 13.60V F41
Q31 F53-0246-05
2SJ650
SB
4.0A
REVERS
CONNECTION
PROTECTION
12.6V
L2
VOLTAGE
REGULATOR/5V
Q42 IC43
2SD1757K 4.97V NJM78L05UA
5M 1 3
OUT IN
COM
2
VOLTAGE VOLTAGE
DETECTOR/INT DETECTOR/RESET
IC45 IC44
BD4740G BD4740G
1 NC VCC 5 5.77V 1 NC 5 4.97V
2 2 VCC
SUB SUB
3 4 3 4
GND VoUT GND VoUT
DISPLAY UNIT (X54-3522-70)
LCD
LCD
J1 E08-0877-05
MBL R1
SB
GND 100 SURGE
PTT ABSORPTION
ME D20
MIC MC2850
HOOK CM
KS2
A <B C>
KS3
CH CH
MIC UP DN
18 KS4 LCD CONTROLLER
17 ME IC1
GND VOL VOL S LC75893M
16 UP DN
PTT 19 KS2/S16
15 KS1/S15
HOOK 20
14 POWER KS3 CoM3
32 13 21 KS4 CoM2
SEG26 31 SB 22
SEG25 12 KI1 CoM1
30 8C 23
SEG24 11 L1 KI2
SEG23 29 5C 24 KI3
10 NC 25
SEG22 28 9 KI4
27 TX 26
SEG21 8 KI5
26 BUSY 5.01V 27
SEG20 7 TEST
SEG19 25 6 BL 28 VDD
24 CM 29
SEG18 5 VDD1
23 CL 30
SEG17 4 VDD2
22 CE 31
SEG16 3 VSS
SEG15 21 2 DI CP1 32 oSC
20 DO R90-0724-05 33
SEG14 1 Do P4/S4
19 34
SEG13 CN1 E40-6005-05 DC SW DC SW CE P3/S3
18 Q7 35
SEG12 2SC3928A 2SC3928A Q8 CL P2/S2
SEG11 17 36 DI P1/S1
T:3.71V R21
T:3.74V BUSY:3.71V
0
T:1.71V R6 R7 R8
TX BUSY 10k 10k 10k
RED LED GREEN LED
D22
B30-2151-05
DIMMER TX/RX LED
FUNCTION SW 0.64V
D7 D8 D9 R28
B30-2281-05 B30-2281-05 B30-2281-05 39
0.64V
D10 D11 D12 D1 D2 R17
R29 KEY
39 BACKLIT SW 39 D7
LCD BACKLIT SW B30-2281-05 B30-2281-05 B30-2281-05 0.64V B30-2282-05 B30-2282-05 3.92V 7.84V LCD BACKLIT SW
Q2 D13 D14 D15 D3 D4 KRA225S Q3 Q2
2SB1132(Q,R) R20 R30 R10 R18 2SB1132(Q,R) R20 B30-2281-05
D10
0 B30-2281-05 B30-2281-05 B30-2281-05 39 B30-2282-05 B30-2282-05 330 39 0
0.64V D5 D6 C23
D16 D17 D18 R11 B30-2281-05
R31 1000p
B30-2282-05 B30-2282-05 330
B30-2281-05 B30-2281-05 B30-2281-05 39 D21
D1-6 MC2850
D7-18 KEY BACKLIT DC CONTROLLER
LCD BACKLIT
Q4
KRC102S
DC SW
18
17
16
15
14
S14
13
S13 12
S12
11
S11
10
S10
S9 9
8
S8
7
S7
6
S6
S5 5
4
3
2
1
0.64V
D8 D9
R28
B30-2281-05 B30-2281-05 39
D11 D12 0.64V
R29
B30-2281-05 B30-2281-05 39
D8-12
LCD BACKLIT