Kenwood NX-210 Service Manual page 85

AT
TX-RX UNIT (X57-7710-10) (A/2)
50T
50C
33C
TEMPERATURE SENSOR
15V
R503 4
I2CCK
100
5
R506 6
I2CSDA
100
1
2
SDO1
/PCS_RF
50R
SCK1
PLD
CV
DC AMP FOR TCXO MOD
TLV2381IDBV
1
oUT
2
GND
3
IN+
L514
560n
R:0.64V
T:0.51V
C552 R564
7p(B)
0 Q506
2SC5108(Y)F
2ND LOCAL
BUFFER AMP
R568
10
R565
IF_DET
47
50R
+B
AU
IC501
LM73CIMKX-0
3 R509
SMBCLK VDD
10
2
ALERT GND
1
SMBDAT ADDR
X501
L77-3014-05
R511
19.2MHz
4 10
VC VCC
L501
3
GND oUTPUT
4.7u
R505
15k
RIPPLE
R:15.4V
IC502 FILTER
T:15.4V
Q501
2SC5383-T111
5
VDD
4
IN-
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
R576 C608
0 0.1u
AV
SCHEMATIC DIAGRAM
C514
0.01u
13
LD/PS2
CPout1
L502 14
VCCcp2
VCCcp1
15
PLL IC
CPout2
LD/PS1
IC503
16
SKY72300-362
/Fvco /Fin
17
Fvco Fin
18
VCCcp2 VCC
L503
R517 10 C517 100p
R518 10 C518 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
L72-1017-05
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
L72-1040-05
C619 R610
0.1u 1k
R619
R620
AW
NX-210
33C
6
5
4
3 C521 C525
0.1u
2 100p
C526
1 R525
100p
10 R516
R532
47k
C523
0.1u
C524 100p
SPEED UP
DIODE
C545
D502
1u
DA221
OP AMP(VCO MOD/APC)
VCO MOD IC505
TC75W51FK(F)
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
0.01u
23
oSC<E>
GND
22
MIXoUTPUT
CoMPoUTPUT
21
R603 100k
VCC
CoMPINPUT
20
AMIFINPUT C616 0.1u
NoISEAMPoUTPUT
19
AMIFDECoUPLING
NoISEAMPINPUT
18
FMIFINPUT
AMAGCINPUT
17
C614 0.1u
FMIFDECoUPLING1
AGCAMPoUTPUT
16
FMIFDECoUPLING2 R604 10k
RFAGCoUTPUT
15
LIMoUTPUT R605 4.7k
RSSIoUTPUT
14
C615 0.1u
QUADINPUT
AMSW
13
R606 22k
FMDEToUTPUT
AMDEToUTPUT
R613 18k
R:2.01V
T:0mV
OP AMP
(RSSI/VAGC)
IC508
TC75W51FK(F)
R624 5
IN+B VSS
10k 6
IN-B IN+A
7
oUTB IN-A
8
VDD oUTA
12k
10k
X57-771 (A/2) 9/11
AX
50T
50C
CV
CN501
BUFFER AMP
Q502
2SK879-F(Y)
R538 R542 L504
0 0 390(D)
50C
R552
10k
R561
2.2k
R563
220k
50R
R733
0
R611
10k
4
3
2
1
50R
+B
85