Kenwood TK-8100 Service Manual page 64

K
TK-8100
IC502
POWER MODULE
RA30H3340M
T:12.9V
VOLTAGE
PROTECTION
D353,354,355
RF BPF TUNING
C380 R375 C383 R377 C386
470p 0 0.5p 0
1p
R:2.4V
MIC
PC/TV
W/NO(EVOL2)
AFO(EVOL11)
8TC(CPU77)
8RC(CPU76)
SMP(CPU51)
AMPSW(CPU52)
C321
33p
L302
C319
330n
100p
FM DEMODULATION
IC301
TK14489V
1 20
OSC(B) RFIN
2 19
OSC(E) GND
3 18
7.9V
NC Hy_C
C315
4
17
MIX_O SCAN
0.1u 5
16
VCC SCAN
6 15
IF_IN
SQLIN
C311 0.1u 7 14 R306
DEC1 FLAMPO
270k
C312 0.1u 8 13
DEC2 FLAMPI
9 12
R314 2.2k
PH_S RSSI
10
R315 18k 11
AFO
QUCO
L301
L34-4797-05
RSSI(CPU92)
W/NI(EVOL1)
C258 R258
0.01u 2.7k
AUDIO
IC251
FILTER
NJM2902V
R259 1
12k 2
3
7.9V
4
V+ GND
5
6
7
RX
3.3V
1/2Vcc
R264
120k
Q251
3.3V
2SC4617(S)
C264
0.033u
BUFFER
AMP
R265
2.7V
5.6k
SQIN(CPU93)
SBC(CPU82)
1/2Vcc
INT(CPU18)
RESET(CPU10)
60
X57-692 3/3
L
SCHEMATIC DIAGRAM /
UHF
ANT SW
D602
R538 MA4PH633
0
T:0.99V
8T
D604,605
ANT SW
APC CONTROLLER
1
2
R512 R529 3
0 10
4
C390 R381
8p
10
T-Hi:4.5V
Lo:2.6V
R380
TV
100k
DETECTION
D301
R:4.6V MA742
R313
8TC
C309
100k
0.022u
AFO(EVOL11)
SPM(CPU51)
AMPSW(CPU52)
R:1.48V
SQL AMP
C306
Q301
1000p
2SC2412K
R:1.0V
AFV
8TC(CPU77)
C256
0.018u
8R
14 R256 DC SWITCH
13 5.6k
KRC102S
12
8RC(CPU76)
11
10
R251
9 C251
8C
8 47k
4.7u6.3
5C
C253
R253
1u 0
5M
R62
1k
D251 LIMITER
MA742
R275
5C
15k
SBC(CPU82)
B
M
C609
1p
C602 L602
1000p 1.5T
D606
MA742
T:7.9V
IC501
TA75W01FUF
T-Hi:9.0V
8
Lo:3.6V
VCC
R605
7
- +
47k
6 D608
+ -
1SS355
5
TEMPERATURE
VEE
COMPENSATION
R528
10k
C273 R277 R278
1u 68k 12k
3.1V
Q254
R279
DTC363EU
4.7k
AF MUTE
T:7.9V
Q35,36
Q35
DC SWITCH
KTA1664(Y)
CURRENT
8T
R36 PROTECTION
Q36
1.5k
KRC102S KEC
R35
R37
47k
10k
R:7.9V
KEC
VOLTAGE
Q33,34
Q33 REGULATOR
2SA1745(6,7)
8C
8R
R34
IC31
Q34
R:7.9V KIA7808AF
4.7k
R33 3
OUT IN
47k COM
2
KEC
5C
IC32
NJM78L05UA
R:4.9V
1 3
OUT IN
COM
VOLTAGE
2
REGULATOR
IC35
7.9V
PST9140NR
OVER VOLTAGE
DETECTION
1
Q61 NC
KRC404RTK 2
VEE1
D61 R61 3
VEE2
02DZ18F-X,Y 470
OVER VOLTAGE
KEC DETECTION
VOLTAGE
DETECTOR
INT
INT(CPU18)
RESET(CPU10)
N
TX-RX UNIT (X57-6923-03)
C612 R800
R92-1061-05
1.5p
L603
1.5T
D606,607
APC VOLTAGE D1-3
DETECT
SURGE ABSORPTION
5M
D607
MA742
POWER
R1 100
35
R2 0
17
R5
5C
22k
R3 1k
36
83
R4 3.3k
78
84
85
99
86
MIC
100
SB
5C
70
69
71
IC252
LA4600
AUDIO AMP
10 9 8 7 6 5 4 3 2 1
C274
0.22u
Q255
KRC102S
AF MUTE
KEC
D32
C37
470p
R:13.5V
T:13.0V
DC
SWITCH
R:13.5V
D32
Q31
1812L110PR
KTA1046(Y)
1,1A SB
R:12.8V
1
D31
DC SWITCH
REVERSE
Q32
CONNECTION
2SK1824
PROTECTION
VOLTAGE REGULATOR
IC33
4.9V NJM78L05UA
5M 1 3
OUT IN
COM
2
IC34
PST9140NR
5 1 5
5.6V
NC
VCC VCC
2
VEE1
4 3 4
OUT VEE2
OUT
VOLTAGE
DETECTOR
RESET
O
CN1
E40-6268-05
1
PTT 2
MIC 3
POWER
4
5
HOOK
6
KMI2 7
CM 8
KMI1
9
KMI3
10
KMO1
11
KMI4 12
KMO2 13
SB 14
5C
15
CE
16
CL
17
DI 18
J1
CN5
E41-0927-05
B
E