Kenwood NXR-800 Service Manual Supplement page 109

Z
RX UNIT (X55-3100-XX)
CN60
CN48
CN49
CN50
CN51
STD Devi
N:100mVrms
K
W:109mVrms
N:94Vrms
CN52
K2
W:93Vrms
CN66
CN57
RXA
CN53
CN54
CN58
CN55
CN56 CN59
X55-3100-XX
-10
-11
AA
SCHEMATIC DIAGRAM
R335
100k
C561
470p
Q51
SSM3K15TE(F)
DC SW
C560
470p
C559
0.1u
VOLTAGE REGULATOR
IC15
5.0V NJM78L05UA-ZB 8.0V
1 3 R307
oUT IN
0
GND
2
VOLTAGE REGULATOR
IC16
5.0V NJM78L05UA-ZB 8.0V
1 3 R308
oUT IN
0
GND
2
VOLTAGE REGULATOR
IC17
5.0V NJM78M05DL1AZB
3 1
9.0V
oUT IN
GND R309
2
0
VOLTAGE REGULATOR
IC18
5.0V NJM78M05DL1AZB
3 1
oUT IN
GND
2
9.0V
R310
0
VOLTAGE REGULATOR
IC19
NJM78M05DL1AZB
3 1
oUT IN
GND
2
C675
Note : The components marked with a dot (
K NO
K2 33u16
AB
CONTROL UNIT
CN43 RX_IF_VN
X53-414 -CN300
CN42
1 GND
2 GND
3 NC
4 RX_PoWER_SAVE
5 DDS_EN
6 VCO_BAND_SW
7 PLL1_EN
8 DA_EN
9 SIF_CLK
10 GND
11 SIF_DAT
12 RX_AUDIO
13 PLL_PWR_SAVE
14 GND
15 NC
16 FM_RSSI
17 PLL2_EN
18 AGC_RSSI
19 PLL_LOCK_DET
20 CoNT_5.0V
21 NC
22 AD_DAT_READ
23 GND
24 AD_CLK
25 NC(IF_NW_SW)
26 AD_DAT_WRITE
27 IF_BW_SW
28 AD_CS
29 D_GND
30 E2PROM_SCL
31 CoNT_5.0V
32 E2PROM_SDA
33 D_GND
34 WP
35 GND
36 GND
EEPROM
IC31
S24CS02AFJTBG
VOLTAGE REGULATOR
IC24
NJM7808FA-ZB 13.7V
3 1
oUT IN
GND
2
VOLTAGE REGULATOR
IC25
NJM7808FA-ZB
3 1
oUT IN
GND
2
R392
0
VOLTAGE
REGULATOR
IC26
NJM2386ADL3-09
R391
0
VOLTAGE
REGULATOR
IC27
NJM2386ADL3-09
AC AD
NXR-800
AT RX ANT -47dBm INPUT
C565
W:13.8V
K
470p
N:13.8V
CN44
W:13.7V
DC SW
K2
1 GND
N:13.7V
Q52
2SJ484 2 POWER
3 POWER
DC SW
Q50
SSM3K15TE(F)
CN45
19.2MHz REF_SIG
•
) are parts of layer 1.
X55-310 6/6
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