Kenwood TK-8102 Service Manual page 51

TX-RX UNIT (X57-6920-XX)
D403,404
RX VCO
Q402,403 RX VCO
CHARGE PUMP R:6.6V
R403 1k * L406 D404 * C426 * L408 2SK508NV(K52)
R414
1k
R402 MA2S304
VOTAGE 0 CV
R401 1k
DROPPED
D402 R410
10k Q402
HZU5ALL 2SA1832(GR) R418 R419 R421 L405
CV
TCXO Q403
R412 2SC4738(GR) 1k 1k 1.5k R429
1.6V X401 KDC 4.9V
12k 100
VC 5C
PLL IC R430
16.8MHz
D405,406 100
IC401
GND XOUT MB15A02 TX VCO
*
T:6.4V
PLL SYNTHESIZER RF AMP D406
L77-1868-15
6.9V * L411 MA2S304 * C434 * L413 2SK508NV(K52)
Q404
0.7V
L403 C418 R415 2SC4649(N,P)
C411
10u 1000p 0
TX VCO
4.8V C412 0.1u
10u6.3
RIPPLE
FILTER
L416 R428 D407
R409 MODULATION
47k
100k 4.9V
R426
R425 47k 8CL
47k
UL(CPU21)
5C
MOD
PLLE(CPU3)
DT(CPU53)
CK(CPU54)
MIC
5C
W/NO(EVOL2)
W/NI(EVOL1)
D4-11
R163 47k
SURGE ABSORPTION
5M
IC161
M62363FP
DIGITAL
TX AF POTENTIOMETER
Q1
CN2
1 2SK1824 AFI(EVOL12)
SB Scrambler
2 AFO(EVOL11)
R164 1k
3 5C
R165 1k
5.0V
4
MIC MUTE R166 1k
R223
5 FNC1 5C Q202 MICMT1(CPU73)
29 4.7k 2SJ243 R222 1k MICEM(CPU74)
6 FNC2
30
7 FNC3 LOCK:5.0V
43 C210
8 FNC4
45
0.1u
9 FNC5
46 R209 R211
4.9V R212
10 FNC6
48 240k 82k 82k
R208
11 FNC7
47 1.5k
5C
12 FNC8
49
IDC MIC AMP
IC202
SPLATTER FILTER
NJM2904V
CN3
1 IGN HPF
1 2.4V
2 DATAI
8C
C213
3 DETO IC201 8.0V
3
TXAFI NJM2100V 3300p
4 R207
MIC AMP R215 R214
TXAFO
5 750k
68k 68k
6 EMGMIC
C217
AF AMP C206
7 RXAFO
Q201 10u6.3
7 2SC4919 C203 1000p
8 ALTI
DC
8 BUFFER AMP AMP
9 RXAFI 0.027u
C205 IC203
9 SUM AMP
10 5C NJM2902V
5C 0.1u
11 8C D201 D202 R217 1 14
8C DAN222 1SS372
R206 220k 2 13
R205 - + + -
100 1/2Vcc 3 12
820 T:7.9V
8C 4 11
V+ GND
OR GATE AGC
5 10
6 9
7 8
8C
3.42V
1/2Vcc MOD BUFFA
R228 R227
10k 22k
R78
SB
R77
130k
(D)
BEAT
SHIFT
C90 X86
Q87
2SK1824
R86
18p
0
R:1.2mV
PRE DRIVE AMP
6.1V
* C430 BUFFER AMP RF AMP 4.87V RF SWITCH T:5.6V Q500
7.2V
R:1.0V Q410 1.51V Q411 * C502 2SC5108(Y)
2SC5108(Y)
Q405 2SC5108(Y) R445 C466
C432 C454
0 5p
T:1.8V
0.5p 6p C456
0.8V D409
4p
0.74V DAN235E
R:5.7V
Q407 2SJ243 R444
Q408 T:0.97V 1k
KRX102U
T/R SW L417
R432
C439
1k
T:1.1V R:4.9V
Q406
T:0V
C441 T/R SW
7.0V
0.3p RIPPLE
FILTER
Q440 TP
TH351
2SC4617(S)
XF351 -t
3.3k
R:4.6V R:0.76V L71-0591-05
C351 R353 R354 49.95M R355 L352
33p 100k 560 680 0.47u
R:7.0V
R:7.9V 7.7V
C359
RIPPLE 12p
FILTER
Q351
2SC5108(Y)
IF AMP
8R
TX/RX(CPU20)
MIC
PC/TV
W/NO(EVOL2)
W/NI(EVOL1)
AFO(EVOL11)
8TC(CPU77)
8RC(CPU76)
DT(CPU53)
CK(CPU54)
AFI(EVOL12)
5M
C102
5.0V R123
0
0.1u
C101
MICMT1(CPU73)
MICEM(CPU74)
470p
76
8RC
77
8TC
78
78 CM
79
NC
5M R124 80
NC
47k 81
NC
82
SBC
R125 1k 83
83 KMI1
R126 1k 84
84 KMI2
R127 1k 85
KMI3
85
R128 1k 86
KMI4
86
C103 87
PWRPRCT CPU
1000p 88
SIGNAL IC101
30622MAA-B87GP
R91 1k 89
TEMP2
R92 1k 90
TEMP1
91
BATT
92
RSSI
93
SQIN
R129
94
AVSS
0 95
NC
L101
5M 96
VREF
97
5.0V
AVCC
98
NC
99
R130 1k
99 KMO1
R131 100
1k
100 KMO2
QT/DQT(CPU1)
5M CNVSS
PLLE(CPU3)
R151
EVLLD(CPU8)
1k 10k
TX/RX(CPU20)
UL(CPU21)
DTMI(EVOL16)
RSSI(CPU92)
IGN(CPU72)
R75
1k
C87 BEAT 17
SHIFT
18p
SQIN(CPU93)
Q86
SBC(CPU82)
2SK1824
1/2Vcc
IC502
PRE DRIVE AMP T:6.0V POWER MODULE
Q502 RA30H4452M-31
T:6.8V T:1.10V Q501 T:7.3V T:0.29V C523
2SC3357 *
C509 2SC3357 C516
5p 8p DRIVE1
T:12.9V R538
T:1.6V
D502
DA221
VOLTAGE
TEMPERATURE
COMPENSATION PROTECTION
8T
R:3.2V
R:3.6V
MIXER
RF AMP
Q352 D351,352 Q353 D353,354,355
3SK255 3SK255
R:7.3V RF BPF TUNING
R:1.9V RF BPF TUNING
D G2 D G2
R364 * C367 C371 C374 L357 C380 R375 C383 R377 * C386
S
S G1 0.4V 0 0.5p 7p 39n G1 R:1.6V 470p 0 0.5p 0
R:0.9V
*
8R
R:2.4V
TV R380
100k
MIC MIC
PC/TV PC/TV
W/NO(EVOL2) W/NO(EVOL2)
AFO(EVOL11) AFO(EVOL11)
8TC(CPU77) 8TC(CPU77)
8RC(CPU76) 8RC(CPU76)
SMP(CPU51) SMP(CPU51) SMP(CPU51)
AMPSW(CPU52) AMPSW(CPU52) AMPSW(CPU52)
AFI(EVOL12)
R323 L304 R322
C321
150k 330n 100 DETECTION
33p
R:7.5V
R:4.6V
L302 C319
R:0.6V
C309
330n 100p
Q302
0.022u
WIDE(CPU65) 2SC4649(N,P)
NARROW(CPU64) BUFFER AMP
W:4.9V
N:0V
FM DEMODULATION
IC301
50
AFM CF301 TK14489V
49 R119 1k L72-0993-05 WIDE 1
FNC8 49 20
OSC(B) RFIN
48 R118 1k IF SWITCH IF SWITCH 2 19
FNC6 48
D303 D302 OSC(E) GND
47 R117 1k 3 18
FNC7 47 DAN222 DAN222 7.9V
NC Hy_C
46 R116 1k C315 4 17
FNC5 46 CF302
R115 1k MIX_O SCAN
45 L72-0999-05 0.1u 5 16
FNC4 45
44 R113 47k VCC SCAN
6 15
CEFLS IF_IN
43 R114 1k SQLIN
FNC3 C311 0.1u 7 14 * R306
43 NARROW DEC1 FLAMPO
42
NC C312 0.1u 8 13 R:1.48V
DEC2 FLAMPI
41
NC R314 2.2k 9 12 C306
W:0V PH_S RSSI
40 N:4.9V
NC R315 18k 10 11 1000p
AFO
39 R112 47k QUCO
EMPFLS AFV
38
NC RXD TXD
37
NC
36 R111 1k
HOOK 36 L301
L34-4554-05
35
PTT 35
RSSI(CPU92)
34
RXD R109 R110 W/NI(EVOL1) W/NI(EVOL1)
33 1.5k 47k C258 R258 C256
TXD 5M
32 R108 47k 0.01u 2.7k 0.018u
BSYFLS 5M AUDIO
IC251
31 R107 47k FILTER
CLKFLS AFI(EVOL12) NJM2902V
30 R106 1k R259 1 14 R256
FNC2 30
29 R105 1k 12k 2 13 5.6k
FNC1 29
- + + -
28 7.9V 3 12
EEPSDT
27 4 11
EEPSCK 8C
26 V+ GND
EEPWP 5 10
5C
6 9
1
8 R270 C269
A0 VCC 7 8
2 7
2.7k 1u
A1 WP R67
3 6
47k R269 C268
A2 SCL RX
4 5 R66
82k 0.1u C253
GND SDA 3.3V R253
47k
R152
4.9V 1/2Vcc 1u
IC66 AF MUTE
4.7k
AT24C64A10SI18 Q253 R264
2SK1824
C66 470p AFM(CPU50) R268 120k
EEPROM DTMI(EVOL16) 1k Q251 3.3V
2SC4617(S)
RSSI(CPU92) D251
C264
MA742
Q71
0.033u
KRC414RTK
BUFFER
R72 R71
R:0V 2.7V AMP R265
B
1M 4.7k Q252
5.6k
2SK1824 Scrambler
KEC AF MUTE R267
IGNITION
0
SQIN(CPU93) SQIN(CPU93)
SBC(CPU82) SBC(CPU82)
1/2Vcc 1/2Vcc
INT(CPU18) INT(CPU18) INT(CPU18)
RESET(CPU10) RESET(CPU10) RESET(CPU10)
UHF
C609 * C612 R800
ANT SW R92-1061-05
D602 1p
MA4PH633 C602 L602 L603
0 1000p 1.5T 1.5T
T:0.99V
D606,607
APC VOLTAGE D1-3
DETECT SURGE ABSORPTION
5M
D606 D607
MA742 MA742
D604,605 T:7.9V
ANT SW
APC CONTROLLER
IC501
TA75W01FU
CN1
1 8 T-Hi:9.0V 18
Lo:3.6V POWER
VCC
2 7 R605 R1 100 PTT 17
- + 35
R512 R529 3 6 47k D608 R2 0 MIC 16
+ -
1SS355
0 10 4 5 POWER 15
TEMPERATURE 17
C390 * R381 VEE COMPENSATION
R5 14
5C
22k R3 1k HOOK 13
36
R528 KMI2 12
83
10k R4 3.3k CM 11
T-Hi:4.5V 78
Lo:2.6V KMI1 10
84
TV KMI3 9
85
KMO1 8
99
KMI4
7
MIC 86
KMO2 6
100
SB
5
SB
5C 4
5C
CE 3
70
CL 2
69
DI 1
71
IC252
LA4600
D301
MA742
R313 AUDIO AMP
8TC
100k 10 9 8 7 6 5 4 3 2 1
AFO(EVOL11) C273 R277 R278 C274
1u 68k 12k 0.22u
3.1V
J1
R279 Q254
SPM(CPU51)
DTC363EU
4.7k
AF MUTE
CN5
AMPSW(CPU52) Q255
KRC102S
SQL AMP
AF MUTE
KEC
Q301
2SC2412K
R:1.0V
T:7.9V
Q35,36
DC SWITCH Q35 D32
KTA1664(Y)
CURRENT C37
8T
R36 PROTECTION
Q36
R:13.5V 470p
KRC102S 1.5k KEC
T:13.0V DC
R37 R35 SWITCH
8TC(CPU77)
D32 Q31 R:13.5V
10k 47k 1812L110PR
KTA1046(Y)
R:7.9V
KEC B
VOLTAGE 1,1A SB
8R E
Q33,34 Q33 REGULATOR
DC SWITCH 2SA1745(6,7)
8C
R34 8R IC31
Q34 R:12.8V
R:7.9V KIA7808AF
KRC102S 4.7k
R33 3 1 D31
8RC(CPU76) OUT IN DC SWITCH
REVERSE
47k COM Q32
CONNECTION
2SK1824
KEC 2 PROTECTION
R251 C251
8C VOLTAGE REGULATOR
47k 4.7u6.3 5C
IC32 IC33
NJM78L05UA 4.9V NJM78L05UA
R:4.9V
1 3 5M 1 3
OUT IN OUT IN
5C
COM COM
2 VOLTAGE 2
0 REGULATOR
5M
R62
1k IC35 IC34
7.9V PST9140NR
LIMITTER OVER VOLTAGE PST9140NR
DETECTION
1 5 1 5
5.6V
R275 Q61 NC VCC NC VCC
KRC404RTK 2 2
5C VEE1
VEE1
15k D61 R61 3 4 3 4
VEE2
VEE2 OUT OUT
02DZ18(X,Y) 470
OVER VOLTAGE
KEC DETECTION VOLTAGE VOLTAGE
DETECTOR DETECTOR
INT RESET
SBC(CPU82)
B
INT(CPU18)
RESET(CPU10)
DISPLAY UNIT (X54-3460-20)
D1-4 Q9
Q9,10
KEY BACKLIT KRA225S
KEY BACKLIT SWITCH
3.7V
D1 D2 R14
2.7k 13.46V Q10
KRC102S
B30-2238-05 B30-2238-05
NORMAL AMBER 3.7V
D3 D4 R15
2.7k
B30-2238-05 B30-2238-05
R19
R17
2.2k 4.23V
R16 10
MICBL MICBL 1
PSB 2
100
5C 5C 3
PTT PTT 4
ME ME 5
MIC MIC 6
HOOK HOOK 7
CM CM 8
MONITOR KEY LIGHT
0.17V 11.4V
M
R7 D5
SHIFT REGISTER FOR
2.7k
CN1 LED & MICBL CONTROL B30-2239-05
1 GND
0.17V 11.35V PROGRAMMABLE KEY LIGHT
2 PTT IC1 P
R8 D6
BU2090FS
3 MIC 4.96V
2.7k
1 16 B30-2239-05
4 POWER VSS VDD
D7-10
2 15
5 ME DATA Q11 0.16V 11.34V CHANNEL KEY LIGHT
3
14 R9 D7 1
6 HOOK CLOCK Q10
MICBL 4 SUPER AMBER
13 2.7k
7 KMI2 Q0 Q9 B30-2239-05
LEDMON 5 12 LEDG 0.16V 11.40V
2
8 CM Q1 Q8 R10 D8
LEDPF 6 11 LEDR
9 KMI1 Q2 Q7 2.7k
LEDC1 7 10 LEDC4 B30-2239-05
0.16V 11.40V
10 KMI3 Q3 Q6 R11 D9 3
LEDC2 8 9 LEDC3
Q4 Q5
11 KMO1 2.7k
B30-2239-05
KMI4 0.16V 11.38V
12 4
R12 D10
KMO2
13
2.7k
SB B30-2239-05
14
CP3
15 5C L1 3.9k
16 BUSY
0.17V 11.1V
17 CL D11 G
Q4
KRC102S
18 DI
B30-2237-05 YELLOW GREEN
5C R20
2.2k
CP4
TRANSMIT
3.9k
BUSY LIGHT SWITCH R13 D12 R
0.15V 2.7k 9.57V
SUPER RED
B30-2240-05
R1 1k
R2 1k
R3 1k
R4 1k
R5 1k
R6 1k
P M
1 2 3 4
X57-6920-XX C48 C303 C304 C305 C367 C369 C373 C381 C384 C386 C388 C390 C426 C427 C429 C430 C431 C434 C435 C438 C439 C440
-22 M 450-490MHz 0.047u 4700p 220p 220p 470p 1.5p 9p 7p 7p 0.5p 6p 8p 18p 12p 1p 6p 5p 8p 6p 1p 3p 4p
-23 M2 485-520MHz 0.01u 4700p 220p 220p 47p 6p 7p 6p 5p 0.5p 3p 5p 5p 4p 2p 2p 3p 4p 3p 1.5p 2p 3p
-24 M3 400-430MHz 0.01u 1000p 120p 120p 470p NO 8p 7p 7p 0.75p 6p 8p 8p 7p 2p 2p 3p 5p 6p 2p 2p 3p
X57-6910-XX C502 C523 C528 C601 C604 C605 C610 C611 C612 R304 R305 R306 R311 R312 R381 R423 R424 R502 R506 TC352 TC402 TH401
-22 M 450-490MHz 2p 4p NO NO 1.5p 2p 6p 4p 1p 4.7k 1.8k 270k 33k 47k 0 220 150 10 56k 6p 10p 10K
-23 M2 485-520MHz 2p 4p 2p 3p 2p 1p 4p 3p 2p 4.7k 1.8k 270k 27k 150k 0 270 220 33 56k 6p 10p NO
-24 M3 400-430MHz 5p 7p NO 5p 2p 2p 7p 6p 2p 12k 18k 220k 33k 47k 10 330 270 10 120k 3p 6p NO
X57-6910-XX L354 L355 L356 L358 L359 L406 L407 L408 L409 L410 L411 L412 L413 L414 L415 L504 D351 D352 D353 D354 D355
-22 M 450-490MHz 8n 8n 18n 8n 8n 4.7u 4.7u 27n 4.7u 4.7u 27u 27u 27n 27u 27u 12n HVC350B HVC350B HVC350B HVC350B HVC350B
-23 M2 485-520MHz 5n 8n 18n 5n 8n 270n 270n 39n 180n 270n 270n 270n 33n 180n 270n 12n HVC355B HVC355B HVC355B HVC355B HVC355B
-24 M3 400-430MHz 12.5n 12.5n 22n 12.5n 12.5n 270n 270n 56n 270n 270n 270n 270n 47n 180n 270n 22n HVC350B HVC350B HVC355B HVC350B HVC350B
J1