Kenwood TK-3360 Service Manual page 51

Z
TX-RX UNIT (X57-7790-11) (A/3)
TMP
DRIVE AMP
Q204
C222
RFM01U7P
220p
L206
12n
H:1.8V
L:1.4V
H:3.6V
L:2.5V
50T
50R
C459
2p(B)
PC/BPF
50V
OPTDET
PTT/RXD
TXD
50M
33M
50R
MICI
AF AMP
ON:7.4V
OFF:0V
DC SW
Q814
2SA1362-F(GR)
AF AMP
ON:3.3V
OFF:0V
AUDIO
DC SW
Q813
RT1N141U
-T111
EXTMICSW
AFSW
7.5V
SB
PTT
Note : The components marked with a dot (
AA
SCHEMATIC DIAGRAM /
FINAL AMP
Q205
RD07MUS2BT112
L222
2.7n
H:1.3V
L:1.0V
R227
0
RX(VHF)
R:5.0V
T:0V
C461 C467
C466 C495
2p(B) 2p(B) 2p(B) 470p
D404,405
BPF TUNING
LEVEL
LEVEL
CONVERTER
CONVERTER
Q816 Q815
UPA672T-A UPA672T-A
EXTMICSW
R924
470k
IC815
TA7368FG
1 10
NC1 PoUT
2 9
VCC PW-GND
3 8
NC2 PRE-GND
C924
4 7
VIN PHASE
5 6 100p
RIPPLE NF
AF AMP
AF AMP
ON:0V
OFF:7.4V
C922
0.1u
) are parts of layer 1. / 注意： 标有点号 (
•
AB
原理图
STRIP LINE
R240
0
R:4.9V
T:0V
RF AMP
Q407
R448 3SK293-F
R:2.0V
T:0V
22
C478
R457 C497
0 470p
470p
50V
OPTDET
5.0V
R936
DC SW
Q820
RT1N141U
-T111
R929
R928
AF AMP
Q818,819
ON:3.5V
MUTE SW
OFF:0V
R930
Q818 Q819
2SK3577-A 2SK3577-A C926
100u6.3
DC SW
Q817
RT1N441U-T111
PTT
AC
TK-3360
D201,202
ANT SW
D201
C243 C247
L219 L220 L221
3T 5T 4T
470p HVC131 47p
D202 C256
C249 C253
HVC131 4p(B) 1p(B) 2p(B)
R:0V
T:0.8V
R239 R234
50T
0 0
D203,204
ANT SW
C482 C484
4p(B) 4p(B)
R481
PC/BPF
470k
D410,431,432
BPF TUNING
0 C934
270p
J801
1k
PTT/RXD
MICI
MICO
27k
OPTDET
50V
SP/MIC JACKS
J802
AE
100
TXD
SPI
SPO
TX-RX UNIT
(X57-7790-11) (C/3)
SPEAKER
• ) 的零件为第一层的零件。
X57-779 (A/3) 6/6, X57-779 (C/3) 1/1
AD
1
ANT
2
C489
10p(B)
3
C487
33p
4
5
R951
0
6
MIC801
MIC
7
51