Schematic Diagram - Kenwood TK-8162 Service Manual

F
TX-RX UNIT (X57-711X-XX)
BUFFER AMP
6.98V
1.63V
Q446
0.76V
2SC5108(Y)
C469 C470
6p 4p
R454
0
UL
TX/RX
XF351
R:4.07V R:0.76V
L71-0624-05
C351 R353 C350
R354 4 1
33p 10k 470 0.01u
Q351
2SC5108(Y)
IF AMP
RECTIFICATION
C309
0.022u
D301
MA742
RSSI
NARROW
WIDE
PLLE
DT
CK
FREQO
BLI
PC/TVO
TVO
HSDSW
DETSW
SCRSW
DTM/HSDO
AFM
MICMT1
LOSDI
R273
Q241
RT1P141U
180k
W/N SW / TX (D)
MICEM
G

SCHEMATIC DIAGRAM

RF AMP
7.07V 4.85V
Q447
2SC5108(Y) C480
R460
0 5p
RF SW
(TX/RX)
R:5.63V
T:0V
C486
*
* L460
R462
1k
* R463
TP
TH351
-t
3.3k
R:1.67V
L352
*
C349
R355
MIXER
0.01u 330
R:7.00V
Q352
3SK318
D G2
R:2.15V
S G1
C359
R:0.71V
12p
8TC
SQIN
R269
68k
(D)
C264
2.5V
33p
2.5V
1
AGNDIN
DTRAIN
2
TXIN AMP4O
3
TXINO AMP4N
AUDIO
4
PROCESSOR
LIMLV AMP4P
5
EXTLIMIN AMP3O
IC241
6
5.0V AQUA-L
MOD
AMP3N
7
VDD
AMP3P
8
DTRLOADN
VSS
9
STD XIN
C251
0.047u
H
RF AMP
RF SW Q500
R:0V
(TX/RX) 2SC5108(Y)
T:5.49V T:1.66V T:7.30V
D448
C502
*
HSC277
T:1.13V
* C489
* R465
RF AMP
D351,352
R:7.12V
RF BPF TUNING
L357
C367 * C371
R364 * C374
39n
0 7p
R:2.09V
C260
R263
0.47u DIGITAL
330k
POTENTIO
METER
R207
IC201
0
M62364FP
25 R259
24 270k(D)
23
R258
22 C256 200k(D)
330p
21
20 R257
100k
19
C255
18
56p
17
R276
22k
R254
R255
470k
150k
R240
0 R250
1M
C252
R251 R252 R253
X241
100k
47k 0.1u 5.6k
L77-1968-05
3.6864MHz
I
TK-8160/8162
RF AMP
Q501
T:7.43V
2SC3357(RF)
T:0.13V
C509
5p
T:0.15V
TEMPERATURE
COMPENSATION
D502
DA221
D353-355
R:3.50V
RF BPF TUNING
Q353
3SK255
C394 * C395
*
G2
D
C386
C380 * R375 * C383 * R377 *
S
G1
R:1.90V 470p
R:1.14V
R277
22k
R256
47k
J
C516
8p
UL
TX/RX
* C390 R380
0
R:2.07V
R381
100k
8TC
SQIN
RSSI
NARROW
WIDE
PLLE
DT
CK
HSDSW
DETSW
SCRSW
AFM
NICMT1
LSDI
HSDI
HSDO
EVLLD
QT/DQT
LIMSW
MICEM
43
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