Kenwood TK-2102G Service Manual page 32

K
TK-2102G
T:1.1V
R:0V
R107
T:2.2V T:2.9V
3.9k
R:1.0V R:0V
RF SW
D100 C104
Q101
2SC4988-E
HSC277 1000p
TX PRE-DRIVE
RF SW
T:0V
R:1.7V
B
2nd Local
PABC
5R
5T
R:4.8V
R200
10
5R
AF
5MS
BUSY
B
APC
TXD
PTT
MIC AMP/LIMITER
R524
NJM2100V-ZB
51k
5
C516 6
10p 7
8
V+
R525
1.5k
MUTE
AFCO
RX
SB
TO AF AMP
32
X57-602 3/4
L
SCHEMATIC DIAGRAM
C108 R112 C109
12p 18 1000p
T:5.0V
R:0V
CF200
L72-0958-05
R:4.4V OUT IN R:3.6V
2nd IF 450kHz
R201 C205
1k 390p
R:3.6V
R202 C206
390k 330p
IF SYSTEM
IC200
TA31136FNG
R:1.1V
R:0.9V
C210
C212
0.01u 15p
R207
100k
DC SW
Q504
DTA143ZE
IC500
4
V-
3
2 C520
1 0.022u
T:2.5V
C518
0.022u(J)
T:2.6V
R:2.6V
M
TX DRIVE
Q102
T:0.7V
2SK2596-E R118
R:0V
L103 0
27n
T:7.3V
R:0V
R125
APC
3.3k
Q107
DTC114TE
TEMPERATURE
PROTECTION SW
B
T:5.0V
PABC
5R
R223
2nd LOCAL
38.4MHz
1st IF 38.85MHz
IF AMP
XF200
Q201
R:0.7V
L71-0522-05
2SC4649(N,P)
R210 C214 OUT IN
470 0.01u
5R
DC SW
Q200
DTA114EE
B
APC
TXD
PTT
C524
0.027u
AGC MIC MUTE
DETECT /AGC SW
D500 D501
1SS372F DAN222
R530
100
N
TX-RX UNIT(X57-6020-10)
T:0.6V
R:0V
C116 L107
1000p 33n
R122
Q103 680
2SK1824-A
R126
DC SW
680
R:4.8V
100
TP2
R:4.4V
MIXER
L201
C221 R211
Q202
3SK318
0.01u 470 820n
D
G2
S
G1
R:0.2V
R220
560
T:4.9V
R:5.0V
C525 L500
0.1u
R532 Q503
2SC4919
820
MIC MUTE
/AGC
O
TX FINAL
Q105
2SK2595-E
5T
APC
DC SW
T:7.4V
Q104
UFMMT717
B
5R
R217 C264
0 1000p
T:4.9V
R:5.0
5MS
B
APC
TXD
PTT
AFCO
SB
TO AF AMP