Kenwood TKR-D710 Service Manual page 98

K
TKR-D710
19.2MHz or 10MHz -->
LDT
33C
LDT
CN600
DC SW
Q600
SSM3K15TE(F)
33C
SPSCLK0 L613
SPSD0 L614
/16_8PCS R602
100
50C
MB -->
MO -->
RSSIOFS -->
50C
33C
R450
56k
IC409
TC75W51FK(F)
1
oUTA VDD
RSSI R402 2
IN-A oUTB
100 3
IN+A IN-B
4
VSS IN+B
BUFFER AMP
33C
C403
0.1u
IF AMP
IC400
AD8051ART
C400
0.1u
AGC
W_/N
VN_/N
<-- 450kHz
19.2MHz -->
19.2MHz -->
VT2 -->
VT1 -->
98
X57-894 3/8
L
SCHEMATIC DIAGRAM
DC SW
Q601
R605 2SA1832(GR)F
0
BUFFER
IC600
TC7WH126FU-F
1 8
G1 VCC
2 7
A1 G2
3 6 R683 0
Y2 Y1
4 5 R684 0
GND A2
R685 0
BUFFER
IC601
TC7WH126FU-F
1 8
G1 VCC
2 7
A1 G2
3 6
Y2 Y1
4 5
GND A2
5.04V
R401
22
BUFFER AMP
IC401
3.27V
TC75W51FK(F)
8 C440
7 R451 0.1u
6 100k R452
5 220k
BUFF & DIFF AMP
R400 R404
3.17V 220k 0
IC402
LMC7101BIM5
OP AMP
CF400
1.62V
L72-1028-05
C408 R415 R421
0.1u 22k 5.6k
M
19.2MHz or 10MHz -->
C608
0.01u
L601
10u
R607
16.8MHz MOD PLL
100k
16.8MHz PLL
IC602
ADF4001BRUZ
3.26V
9 8
DGND REFIN
R608 10 7 C611
CE AVDD
100k 11 6 0.01u
CLK RFINA
12 5 C612
DATA RFINB
13 4 0.01u
LE AGND
R606 14 3
MUXoUT
CPGND
100k 15 2
DVDD CP
16 1 R609
3.27V
VP RSET
4.7k
C606
10u
50C
3.27V
C407
1000p
3.17V
R420
3.26V
R417 22 47
R418 22
<-- RSSI
3.26V
R453
22
AGC -->
<-- 450kHz
33C
N O
TX-RX UNIT (X57-894K-01)
C610 R611
0.01u 100
C613
0.01u
R613
0
IF SYSTEM
IC403
NJM2287V
C418 C421
1000p 14 1 1000p
Lo_DEC
RF_DEC
C416 13 2
Lo_IN
RF_IN
0.01u 12 3 C423
-88.4dBm
V+1
0.01u
GND1
11 4
V+2
MIX_oUT
10 5
RSSI
C424
GND2 6
C417 9 0.1u C425
IF_oUT
IF_IN
0.1u 8 7 0.1u
GC_IN
IF_DEC
C422
0.1u
AW:-72.2dBm
AN:-72.9dBm
VN:-75.6dBm
MB -->
MO -->
450kHz -->
33C
W_/N
VN_/N
19.2MHz -->
19.2MHz -->
VT2 -->
VT1 -->