Kenwood TK-7100 Service Manual page 47

K
TK-7100
TX-RX UNIT (X57-6910-XX)
POWER MODULE
DRIVE1
T:6.0V
Q502
C515
2SC3357
27p
T:0.6V
D502
DA221
VOLTAGE
PROTECTION
D353,354,355
RF BPF TUNING
C380 C384
1000p 1p
C388
*
R:2.4V
MIC
PC/TV
W/NO(EVOL2)
AFO(EVOL11)
8TC(CPU77)
8RC(CPU76)
SMP(CPU51)
AMPSW(CPU52)
L302
C319
330n
100p
FM DEMODULATION
IC301
TK14489V
1
20
OSC(B) RFIN
2
19
OSC(E) GND
7.9V 3 18
NC Hy_C
C315
4 17
MIX_O SCAN
0.1u
5 16
VCC SCAN
6 15
IF_IN
SQLIN
7 R306
C311 0.1u 14
DEC1 FLAMPO
8 270k
C312 0.1u 13
DEC2 FLAMPI
R314 2.2k 9 12
PH_S RSSI
R315 18k 10 11
AFO
QUCO
L301
L34-4554-05
RSSI(CPU92)
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
R:2.7V
5.6k
SQIN(CPU93)
SBC(CPU82)
1/2Vcc
INT(CPU18)
RESET(CPU10)
44
X57-691 3/3
L
SCHEMATIC DIAGRAM
IC502
VHF
RA30H1317M-31
C516
*
T:12.9V
L503
2.5T
8T
APC CONTROLLER
1
2
R522 R529 3
0 10
4
R378
*
Q354
R350
2SK1824
27k
T-Hi:4.5V
Lo:2.6V
R379
TV
100k
MIC
PC/TV
W/NO(EVOL2)
AFO(EVOL11)
8TC(CPU77)
8RC(CPU76)
SMP(CPU51)
AMPSW(CPU52)
DETECTION
D301
R:4.6V
MA742
R313
8TC
C309
100k
0.022u
AFO(EVOL11)
SPM(CPU51)
AMPSW(CPU52)
R:1.4V
SQL AMP
C306
Q301
1000p
2SC2412K
R:1.0V
AFV
8TC(CPU77)
C256
0.018u
8R
14 R256 DC SWITCH
13 5.6k
12
8RC(CPU76)
11
10
R251
9 C251
8C
8 47k
4.7u6.3
5C
C253
R253
1u 0
5M
R62
1k
D251 LIMITTER
MA742
R275
5C
15k
SBC(CPU82)
B
M
C604
ANT SW
4p
D602
MA4PH633 C603 L603
1000p 5T
T:0.9V
D603,604
ANT SW
D606
MA742
T:7.9V
IC501
TA75W01FU
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
R279 Q254
DTC363EU
4.7k
AF MUTE
T:7.9V
Q35,36
Q35
DC SWITCH
KTA1664(Y)
CURRENT
8T
R36 PROTECTION
Q36
1.5k
KEC
KRC102S
R35
R37
47k
0
1812L110PR
R:7.9V
KEC
VOLTAGE
REGULATOR
Q33,34
Q33
2SA1745(6,7)
8C
8R
R34 IC31
Q34
KIA7808AF
R:7.9V
KRC102S
4.7k
R33 3
OUT IN
47k COM
2
KEC
5C
IC32
NJM78L05UA
R:4.9V
1 3
OUT IN
COM
VOLTAGE
2
REGULATOR
7.9V
PST9140NR
OVER VOLTAGE
DETECTION
1
Q61 NC
KRC404RTK 2
VEE1
D61 R61 3
VEE2
02DZ18(X,Y) 470
OVER VOLTAGE
KEC DETECTION
VOLTAGE
DETECTOR
INT
INT(CPU18)
RESET(CPU10)
N
R800
C612
R92-1061-05
7p
L604
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
1000p
R:13.5V
T:13.0V
DC SWITCH
R:13.5V
D32
Q31
KTA1046(Y)
1,1A SB
R:12.8V
1
D31
DC SWITCH
REVERSE
Q32
CONNECTION
2SK1824
PROTECTION
VOLTAGE REGULATOR
IC33
NJM78L05UA
4.9V
5M 1 3
OUT IN
COM
2
IC34
IC35
PST9140NR
5 1 5
5.6V
NC
VCC VCC
2
VEE1
4 3 4
VEE2
OUT OUT
VOLTAGE
DETECTOR
RESET
O
CN1
18
PTT 17
MIC 16
POWER
15
14
HOOK
13
KMI2 12
CM 11
KMI1 10
KMI3
9
KMO1 8
KMI4
7
KMO2
6
SB 5
5C 4
CE
3
CL 2
DI
1
J1
CN5
B
E