Service Manual

RX
RX
RX
TX
AF_AMP
DUTYCYCLEEQUALYZER
AMP #33
TX 1.05MHZ BANDPASSFILTER
2.5 V REF
CONSIDERREMOVINGTHIS ECAP
AMP #32
ACTIVE_LPF
ALLOVERTHE RXCHAIN
39_DIVIDER
AMP #31
10 DB GAIN VERIATIONS
450K
FL3
GND
3
IN
1
OUT
THIS TRIMMERSHOULD COMPENSATE
MIX #3
REF_SPLITTER
RX,TX
RX
RX
RX
0.01UF
R1815
10K
C1956
R1820
1K
1000PF
C1857
C1826
0.01UF
1.8K
R1855
0.1UF
C1838
U1110
2
3
1
C1861
0.01UF
L1803
0.1UF
C1830
R1864
1.0UH
6
5
7
1K
0.1UF
C1818
MC33174
U1110
R1811
470
IF3_5
100
R1816
C1834
R1830
4.7K
C1802
0.1UF
4.7UF
C1815
220PF
D
G
S
IF3_2
R1865
470
7002
Q1925
R1826
100
13
OUTEN
15
QA
1
QB
2
QC
3
QD
4
QE
5
QF
QG
6
7
QH
10
RESET
11
SHICLK
9
SQH
16
VCC
U1112
74HC595A
14
A
8
GND
12
LATCLK
560
R1899
12
Q2
11
Q3
15
RCO
1
RESET
16
VCC
0.1UF
C1829
2
CLK
7
ENP
10
ENT
8
GND
9
LOAD
3
P0
4
P1
5
P2
6
P3
14
Q0
13
Q1
33UF
U1113
74HC161
R1806
C1997
9R_IF
R1822
3.3K
1K
R1841
10K
9R_IF
6.8K
R1871
0.1UF
C1814
C1839
0.01UF
560
R1862
R1812
20K
0.1UF
C1805
C1999
33UF
0.1UF
C1820
9R_IF
R1998
0.1UF
C9492
R1814
4.7K
10K
1
RESET
16
VCC
C1862
0.01UF
GND
9
LOAD
3
P0
4
P1
5
P2
6
P3
14
Q0
13
Q1
12
Q2
11
Q3
15
RCO
U1114
74HC161
2
CLK
7
ENP
10
ENT
8
C1831
0.1UF
R1846
27
C1859
0.1UF
C1865
R1847
1.8K
VDD_IF
0.01UF
C1817
0.1UF
22UH
L1805
MC14066B
U1111
CONT.
6
IN
8
OUT
9
U1110
MC33174
9
10
8
C1824
1.8NF
0.1UF
C1841
R1843
100K
0.1UF
C1851
VDD_IF
0.1UF
C1807
1K
R1805
VDD_IF
R1802
AF_3
C1833
0.1UF
100
CR1905
R1867
VDD_IF
MMBV3401
R1825
100
10K
100
ADC_IN
L1804
1.0UH
R3302
C1801
0.1UF
R1834
560
450K
FL4
GND
3
IN
1
OUT
Q1021
3904L
9R_IF
9R_IF
MC14066B
U1111
CONT.
13
IN
1
OUT
2
10K
R1859
R3303
51
VDD_IF
9R_IF
3.3K
R1857
1.5K
R1840
R1829
4.7K
10K
R1803
100K
1K
R1801
R1848
22UH
L1800
C1832
220PF
R1804
10
20PF
C1835
C1823
0.1UF
0.01UF
C1837
9T_IF
1.8NF
C1808
330
R1858
R1809
R1813
1.5K
R1824
1.5K
33K
C1845
0.1UF
C1854
0.1UF
1110
0.1UF
C9491
C9530
0.1UF
U1109
74VHC14 74VHC14
U1109
56
VDD_IF
U1109
98
MMBV3401
CR1904
C1843
0.1UF
74VHC14
0.01UF
C1811
560
C1827
2.2NF
C1813
1500PF
R1833
C1840
0.1UF
13
12
14
4
11
9R
270
U1110
R1853
R1821
1.2K
IF3_1
G
S
C1822
4.7UF
Q1020
7002
D
R1819
1K
R1808
680
0
0
R9514
R9498
68PF
C1852
39K
R1856
C1806
0.1UF
C1844
0.1UF
R1836
1.5K
0.1UF
C1847
C1821
0.1UF
R1842
220
3 6
5
IF
1
LO
4
RF
U1108
2
GND1
DSM_N
R1852
39K
R1962
560
100
R1800
9T_IF
VDD_IF
58
6
2
0.1UF
C1800
AD7495
U1115
7
3
1
4
R1866
100
R1817
1.2K
R1831
4.7K
0.01UF
C1819
C3112
0.1UF
R1850
3.3K
CONT.
11
IN
10
OUT
14
VDD
7
VSS
C1836
0.01UF
R1838
560
MC14066B_PWR
U1111
12
C9422
C1842
0.1UF
10UF
C1804
0.1UF
VDD_IF
VDD
C1998
33UF
R1823
10K
R1835
39K
Q1022
3904L
R1827
VDD_IF
0.1UF
C1803
7
GND
1312
14
VCC
100
R1810
1.8K
74VHC14
U1109
C1828
R1911
3.3K
9T
0.1UF
100
R1828
IF3_4
3904L
Q1023
0.1UF
C1853
C1846
0.1UF
3904L
C9423
10UF
R1872
6.8K
IF3_6
L1802
1.0UH
270
R1854
39K
R1839
C1809
0.1UF
R1832
10K
IF3_3
R1861
VDD_IF
C1816
51PF
10K
C1860
0.1UF
R1818
4.7K
22UH
C1858
1000PF
9R_IF
L1806
MC14066B
U1111
CONT.
5
IN
4
OUT
3
0.1UF
C1810
1.0UH
L1801
220
R1845
C1848
0.1UF
R1837
1.5K
4700PF
C1812
0.1UF
C1890
C1825
0.01UF
AF_2
3K
R1851
3K
R1807
1K
R1863
0.01UF
C1856
VDD_SWITCH
TX_SEC_INJ
A_D_DATA
SR_DATA
SR_CLK
CONVST
3.3V
DSM_AGC_EN
`16.8_sqr
R1869
100
680NH
L1807
R1860
1K
12
U1109
74v hc14
VDD_IF
0.1UF
C1855
R1868
1K
U1109
3 4
74v hc14
C1864
180PF
C1863
270PF
100
R1870
DSP_16.8Mhz
IF_16.8MHZ
STEP_AGC_20
STEP_AGC_10
STEP_AGC_30
STEP_AGC_30_2
STEP_AGC_10_2
STEP_AGC_10_2
STEP_AGC_30_2
DSM_OUTPUT_1.05MHZ
TRANS_IF
VDD_SWITCH
MM-E2072-09333-00
A-29/A-30
Figure A-1.N.LORDModule,
SchematicCircuitDiagram
(Sheet14of15–IFCircuits)