Service Manual

MM-E 2072-09333-00
NP
-
U3002
NP-U3010
U3010
AD7243BR
R3300
51
33K
R3044
1.5UH
L3000
39PF
C3025
150K
R3029
10K
R3330
33K
0.01UF
R3043
C3011
10K
R3942
1
.0
U3000
MC33174
2
3
1
R3024
R3009
470
O
CX
O
_S
W_
A+
TEMP_SENSE
5V_TAP
6
FDBK
7
GND
4
IN
8
OUT
1
SENSE
2
SHDN
3
5
_ERROR
TEMP_CONT
C3037
R3063
33K
0.1UF
CUR_SENS
3
7
G
ND
4
10
G
ND
D2
A
_FREQ
HE
AT
_C
O
NT
5
O
CX
O
_RF_
OUT
2
O
CX
O
_S
W_
A+
RE
G
_S
W_
A+
11
T
E
M
P_SENS
8
6
9
V_REF_OUT
V_REF_OUT
U3002
HYBR_11P
R3075
150K
C3005
0.1UF
C3900
33UF
L3002
10UH
0.1UF
10UH
C3003
0
.
01UF
L3004
C3031
R3004
150K
U3000
MC33174_PWR
13
12
14
4
11
M
C33174
U3000
9
10
8
C3015
0
.
01UF
10M
R3600
R3060
10K
R3046
1K
R3020
10
33K
FREQ_CONT
R3006
C3019
68PF
R3025
1
.0
10K
R3350
3.3K
R3010
4
.
7UF
C3500
1K
R3013
0.1UF
C3002
VDD
130
R3019
R3076
10.0K
10UH
L3003
180PF
C3021
R3016
560
0
.
01UF
C3013
150K
R3050
0.01UF
C9401
C3075
0.01UF
R3017
560
C3012
0.01UF
C3014
0.01UF
0
.
01UF
OCXO_SW_A+
C3038
10M
R3310
TEMP_CONT_IN
MMBR951
Q3001
6
11
7
VDD
16
14
VSS
15
Q
3000
3904L
A
G
ND
12
4
3
10
D
G
ND
8
9
RE
FIN
1
2
V
O
UT
REFOUT
R
O
FS
13
S
DI
SDO
S
Y
NC_
B
I
N_|COMP
C
L
R_
DCEN
L
D
A
C_
SCLK
5
10K
R3062
0
.
01UF
0
.
01UF
C3016
C3028
U3000
M
C33174
6
5
7
R3021
10
R3034
62K
R3048
100K
R3064
10K
100
D2A_TEMP_CONT
0.01UF
9V
R3047
C3029
0.01UF
C3027
3
.
3K
R3051
L3006
10UH
C3044
39PF
C3035
1
.
5UH
L3007
0
.
1UF
10
R3058
1K
R3053
R3052
3
.
3K
0
.
1UF
C3036
0
.
1UF
C3034
R3056
560
10
R3057
C3033
0
.
1UF
VDD
MM
BR951
Q
3002
68PF
C3041
560
R3054
180PF
C3042
560
R3055
180PF
C3043
C3040
68PF
10UH
L3005
L3008
1
.
5UH
SINE_16.8MHZ
IF_16.8MHZ
OVEN_TEMP_CNTL2
OVEN_TEMP_CNTL1
NP-C3009
NP-R3011
NP-R3014
NP-R3026
NP-R3028
NP-R3032
OPTION
R3026
21
S0
BANDGAP-REF
25
S1
22
SCK
8
SINE_OUT
24
SS
VDD
13
12
V_OPT
11
V_REG
GND
GND
26
NC
NC NC NC NC NC NC
27
U3001
PENDUL_168MHZ
23
CE
7
C_EXT
9
DE
10
FO_SQW
29
28
GND
GND
6
5
33PF
C3023
10UH
L3001
C3007
C3006
0.1UF
0.1UF
OPTION
R3011
0.1UF
C3010
0.1UF
C3026
C3024
33PF
R3032
OPTION
150K
R3031
R3027
0
0.1UF
C3008
C3110
0.1UF
OPTION
R3014
VDD
OPTION
C3009
OPTION
R3028
SPI_DATA_OUT
SPI_CLK
PENDULLUM_SEL
TEMP_SENSE
HEAT_CONT
TEMP_SENSE
CU
R
_SENSE
VCC
6
.
8K
R3000
0
.
01UF
C3000
50K
R3023
A
M
B_
TE
MP
CUR_SENSE
HEAT_CONT
GND
1
Figure A-1.L. LORD Module, Schematic Circuit Diagram (Sheet 12 of 15 – Frequency Reference Circuits)
A-25/A-26