Kenwood NX-210(G) Service Manual page 87

AT
TX-RX UNIT (X57-9270-12)
50T
50C
33C
TEMPERATURE SENSOR
15V
R503 4
I2CCK
100
5
R506 6
I2CSDA
100
1
2
PLL_MOD
SDO1
/PCS_RF
50R
SCK1
PLD
CV
L514
560n
R:0.64V
T:0.51V
C552
R564
7p(B)
0 Q506
2SC5108(Y)F
2ND LOCAL
TRIPLER
R568
10
R565
IF_DET
47
PSRIF
50R
+B
AU
SCHEMATIC DIAGRAM
IC501
LM73CIMKX-0
3 R509
SMBCLK VDD
10
2
ALERT GND
1
SMBDAT ADDR
X501
R511
19.2MHz
4 10
VC VCC
L501
3
GND oUTPUT
4.7u
RIPPLE
R:15.4V FILTER
T:15.4V
Q501
2SC5383-T111
SPEED UP
DIODE
R524
1k
R:3.85V
T:0.22V
C576
100p
C563 C585 C590
R566 L521
47n
330k
10p(B)
10p(B) 2p(B)
BUFFER
IC506
MCP6021-E/OT
C608
R576
0.1u
0
AV
C514
0.01u
13
LD/PS2
CPout1
L502 14
VCCcp2
VCCcp1
15
PLL IC
CPout2
LD/PS1
IC503
16
SKY72300-362
/Fvco
/Fin
17
Fin
Fvco
18
VCC
VCCcp2
L503
R510 10 100p
C783
R517 10 C517 100p
C518
R518 10 100p
R519 10 C519 100p
R:14.7V
T:14.7V
DC AMP FOR VCO TUNE
R:15.4V IC504
T:15.4V LMC7101BIM5
1 5
OUTPUT V-
2
V+
3 4
INPUT+ INPUT-
ASSIST
C522
100p
R:3.50V
T:0.0V
CF501
R:1.87V
T:0.0V
1
R:3.96V
2
T:0.0V
R582 C595 3
R569 4.7k 0.1u 4
10 5
R586 10k
6
C568 0.1u
L534 7
C597 0.1u
27u
8
C569 0.1u
9
C570 0.1u
10
C598 10p(B)
R581 11
10k 12
CF502
C619
R610
0.1u 1k
R619
R620
33C
AW
NX-210(G)
33C
6
5
4
3 C521 C525
2 100p 0.1u
C526
1 R525
100p
10 R516
R532
47k
C523
0
0.1u
C524 100p
SPEED UP
DIODE
C545
D502
1u
KDS123E-P
OP AMP(VCO MOD/APC)
VCO MOD IC505
BU7242NUX
APC
1 8
VDD
R533
2 7
10M
3 6
R534 4 5
VSS
470k(D)
C546
0.1u
C549
100p
FM IC
IC507
TK10931VTL-G
C622
24
oSC<B>
RFINPUT
23 0.01u
oSC<E>
GND
22
MIXoUTPUT
CoMPoUTPUT
21
VCC R603 100k
CoMPINPUT
20
C616 0.1u
AMIFINPUT
NoISEAMPoUTPUT
19
AMIFDECoUPLING
NoISEAMPINPUT
18
FMIFINPUT
AMAGCINPUT
17
FMIFDECoUPLING1 C614 0.1u
AGCAMPoUTPUT
16
R604 10k
FMIFDECoUPLING2
RFAGCoUTPUT
15
R605 4.7k
LIMoUTPUT
RSSIoUTPUT
14
C615 0.1u
QUADINPUT
AMSW
13
FMDEToUTPUT R606 22k
AMDEToUTPUT
R613 18k
R:2.01V
T:0mV
IC508
BU7242NUX
R624 5
IN+B VSS
10k 6
IN-B IN+A
7
oUTB IN-A
8
VDD oUTA
12k
10k
AX
50T
50C
CV
CN501
BUFFER AMP
Q502
2SK879-F(Y)
R538 R542 L504
0 390(D)
50C
R552
10k
R561
2.2k
R563
220k
50R
R733
0
R611
10k
OP AMP
(RSSI/VAGC)
4
3
2
1
C639
1000p
33C
50R
PSRIF
+B
87
X57-927 9/11