Kenwood NX-200 Service Manual page 92

BI
NX-200(G)
CN102
TH100
THP
50T
100k
-t °
BUFFER AMP
R : 4.769V
T : 4.789V
R : 1.53V
Q100
T : 1.149V
2SC5636
TX C100
R : 1.02V
T : 0.88V
15p
R104
50C
47
50T
+B
33C
IFC
3
19.2M
50R
R : 4.849V
T : 5mV
L201
560n
C209
R : 0.731V
T : 3.6mV 100p
L203
R211 C207 C295
47n
330k 10p
R71
C203 0
7p
Q201
2SC5108(Y)F
2nd LOCAL
TRIPLER
CF200
450kHz
oUT
R222
50IF
10
C225
0.1u
C228
0.1u
C230
0.1u
R229
10k
R248
10
R251
0
33C
50R
50IF
4
92
X57-895 3/4
BJ
SCHEMATIC DIAGRAM
C104 R105 D100 C106 R111
10p 0 1000p 0
HSC277
LOCAL
SWITCH
R134
560
R : 63mV
T : 128mV
R : 3.274V
T : 11.2mV
R : 0.65V
T : 140mV
Q104
R126
2SC5383-T111
27k
APC SWITCH
R : 61mV
T : 110mV
APC
SWITCH
+B
R : 3.294V
T : 40mV
SSM3K15TE(F)
/APCSW
C217
10p 47p
FM SYSTEM
IC202
TK10931VTL-G
R : 2.66V
T : -0.8V
1
oSC(B)
2
oSC(E)
IN C356 3
MIXoUTPUT
0.1u
4
VCC
C314 CoMPoUTPUT
5
AMIFINPUT
CoMPINPUT
0.1u 6
AMIFDECoUPLING
NoISEAMPoUTPUT
L230
NoISEAMPINPUT
C227
27u 7
FMIFINPUT
C261
AMAGCINPUT
0.1u
27p
8 AGCAMPoUTPUT
FMIFDECoUPLING1
9 RFAGCoUTPUT
FMIFDECoUPLING2
C231
10
RSSIoUTPUT
LIMoUTPUT
10p
11
QUADINPUT
12
FMDEToUTPUT AMDEToUTPUT
CF201
450kHz
R257 C246 oUT
0 0.1u
IC203
MCP6021-E/OT
BUFFER
BK
PRE-DRIVE AMP
Q102
R : 17.5mV 2SK3077F C178
T : 1.596V
12p
C112
56p
H : 1.596V
L : 1.595V
R120
22k
APC PROTECT
R148
180k
C143
100p
R144
150k
R145
150k
APC SWITCH
R : 13mV
Q109
T : 3.71V
R : 4.694V
T : 5mV
C206
24
RFINPUT
0.01u
23
GND
22
IF AMP
R221 100k
21
2SC4215-F(Y)
20
C224 0.1u
19 R223
270k
18
C275 0.1u
17
R226 10k
16
R227 4.7k
15
C276 0.1u
14
AMSW
13 R231 22k
CN202
R233
18k
R : 2.03V
T : 85mV
C355 R236
IN
0.1u 2.2k
R : 1.81V
T : -100mV
33C
BL BM
TX-RX UNIT (X57-8950-12)
DRIVE AMP
Q103
RD01MUS1-T113
R : 0V
T : 2.11V
L105
R124 C117
47n
18 1000p
H : 2.07V
L : 1.66V
R156
1.8k
R151 R155
10k 470k
IC100
TA75W01FUF
1 8
OUT1 VCC
2 7
IN1- OUT-B
EMD5
3 6
IN1+ IN2-
APC SWITCH
4 5
VEE IN2+
AUTO POWER
CONTROL
R : 7.11V
T : 1.52V
Q105
R154
LTC044EEBFS8
0
APC SWITCH
R : 18mV
T : 3.92V
R : 0.697V
XF200
R214
T : 3.6mV
58.05MHz
560k
OUT
C213 R216 C220
IN
Q202 0.01u 220 0.01u
CN201
VAGC
R282
10k
RSSI
OP AMP
(RSSI/VAGC)
IC404
BU7442FVM
R256
10k
5 4
IN+B VSS
6 3
IN-B IN+A
7 2
oUTB IN-A
8 1
VDD oUTA
R285
10k
TX
50T
+B
Q110
Q107
2SK1824-A
APC
SWITCH
R : 1.59V
T : 1.52V
1st LO
IFC
50R
R218
RX
220
33C
4