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+5A
+5A
+5A
+5A
+5A
+5A
+5A
+5A
C365
330PF
R260
100.0
LOWPASS FILTER
MIXER
C358
.022UF
+5D1
R258
2.21K
1
2
3
7
1
4
U256A
74F86
NC
F4
<31>
Q_INVERT
12
13
11
U256D
74F86
ERROR AMPLIFIER
C364
330PF
+5A
R462
825.0
1
LOWPASS
FILTER
MIXER
C367
.022UF
R266
2.21K
R367
100.0
+5D1
1
2
3
7
1
4
U266A
74F86
H4
<31>4
FSC
+5A
D
2
Q
5
CK
3
Q
6
P
R
4
C
L
1
U161A
74F74
H4
<31>
C161
.1UF
/FSC
+5A
+5A
D
12
Q
9
CK
11
Q
8
P
R
1
0
C
L
1
3
U161B
74F74
C368
.022UF
C366
.001UF
R265
2.21K
R366
100.0
4
5
6
U266B
74F86
2
9
10
7
8
U263B
LM319
F4
<31>
4
/Q_INVERT
9
10
8
U256C
74F86
C437
33PF
C438
120PF
C359
.022UF
R441
301.0
R442
301.0
R257
2.21K
4
5
6
U256B
74F86
D1
4
Q1
2
Q1
3
D2
5
Q2
7
Q2
6
D3
12
Q3
10
Q3
11
D4
13
Q4
15
Q4
14
CLK
9
CLR
1
U445
74F175
4
44
LOWPASS
FILTERS
ERROR
AMPLIFIER
C260
.001UF
4
5
12
1
1
63
U263A
LM319
C361
.1UF
C360
.1UF
IFSC1
+12V
-12V
R259
100.0
+5A
R263
825.0
A4
<34>
43
39
40
J115
PHASE
DETECTOR
R355
39M
QFSC2
QFSC1
IFSC2
+5D
R352
64.9K
R
1
V
3
U1
13
U2
12
PU
4
UF
5
D1
2
D2
6
GND
7
VCC
14
IN
9
OUT
8
DF
10
PD
11
U449
MC4044
ERROR AMPLIFIER
C435
120PF
C439
120PF
C436
120PF
C461
.1UF
C440
33PF
+12V
+5A
R443
301.0
R440
301.0
R460
1.21K
R461
392.0
R459
5.11K
NC
NC
PHASE
DETECTOR
R250
39M
+5D
R
1
V
3
U1
13
U2
12
PU
4
UF
5
D1
2
D2
6
GND
7
VCC
14
IN
9
OUT
8
DF
10
PD
11
U345
MC4044
ERROR
AMPLIFIER
C249
.01UF
C250
.1UF
TP149
C248
.1UF
C153
100PF
+12V
R248
64.9K
R152
118.0K
2
3
1
8
4
U349A
TL072
R249
6.19K
C156
267PF
Q155
Q-0221
C256
.1UF
C155
267PF
Y253
14.31619MHZ
+12V
R156
392.0
R255
5.11K
R256
1.21K
+ DELTA F
CENTER FREQ
4 Fsc
VCXO
C252
2-18PF
R151
274.0
R254
6.19K
A
15
RCO
9
B
1
C
2
D
3
E
4
F
5
G
6
H
7
CCLKEN
12
CCLK
11
CLOAD
14
CCLR
10
RCLK
13
U338
74LS592
C349
.1UF
-12V
CR152
D-0269
NCNC
+5D
4 Fsc
VCXO
OUTPUT
CENTER
FREQ
3
Q356
Q-0221
C357
267PF
Y457
14.318MHZ
C453
82PF
C452
2-10PF
C356
267PF
R362
6.19K
R453
118.0K
R361
274.0
CR453
D-0269
NC
NC
NC
C253
.1UF
TP251
C352
.01UF
+5D
R354
7.50K
R452
6.19K
6
5
7
U349B
TL072
NC
C348
.1UF
REF
+5D
C338
.1UF
C441
.1UF
+5A
+5A
C228
.1UF
C246
.1UF
C327
.1UF
C343
.1UF
C344
.1UF
C362
.1UF
C354
.1UF
+5A +5A +5A
+5A+5A+5A
R353
2.74K
Y253
Y457
1781R
17.73448MHZ
17.73448MHZ
1780R
14.318MHZ
14.31619MHZ
CKT#
ED_0
ED_1
ED_2
ED_3
ED_4
ED_5
ED_6
ED_7
A
15
RCO
9
B
1
C
2
D
3
E
4
F
5
G
6
H
7
CCLKEN
12
CCLK
11
CLOAD
14
CCLR
10
RCLK
13
U235
74LS592
D2
<34>
N
ED_[0..7]
ED_[0..7]
7200
A
15
RCO
9
B
1
C
2
D
3
E
4
F
5
G
6
H
7
CCLKEN
12
CCLK
11
CLOAD
14
CCLR
10
RCLK
13
U342
74LS592
C4
<34>
DPS_LSB
ED_0
ED_1
ED_2
ED_3
A
15
RCO
9
B
1
C
2
D
3
E
4
F
5
G
6
H
7
CCLKEN
12
CCLK
11
CLOAD
14
CCLR
10
RCLK
13
U238
74LS592
C340
470PF
R340
100.0
C151
.1UF
C363
.1UF
-12V-12V
SEE ELECTRICAL PARTS LIST
PARTS WITHIN BOX
HAVE BEEN CHANGED
NC
C434
.1UF
REF
+5A
NCNC
C334
.001UF
+5A
+5A +5A
+5A
R333
15.0K
D
12
Q
9
CK
11
Q
8
P
R
1
0
C
L
1
3
U230B
74F74
C
X
6
R
X
7
A
9
B
10
C
L
1
1
Q
5
Q
12
U335B
74LS221
ED_4
ED_4
D
2
Q
5
CK
3
Q
6
P
R
4
C
L
1
U230A
74F74
M
1
2
3
U246A
74LS00
12
13
11
U246D
74LS00
1780R–SERIES
C4
<34>
DPS_MSB
ED_3
PART OF A7 OSCILLATOR BOARD
DIGITAL SHIFTER <32>
IN REAR OF MANUAL