Motorola R-20010 Maintenance Manual page 282

01. 02. 03. U2
10 MHz
SINEWAVE TO
2
TTL
SYNTH 10 MHz
TRANSLATOR
U2, U3. U4. U7
11
1 ~ Hz REF 31 0-440
TTL 01V10ERS
9
1 MHz REF 60.5
50KHz
~~
05 MHz REF 24
4
~
+33V + 33V FllTERED
I
,..,..,.
Figure 11-Ja. Reference and Control Board ( A9A I ) - Block Diagram (Sheet
I
of 2)
24 CHTL 0
ATA
32
0 TO 5V LOG1C
60.5 CNTl
31
U:VEL
DATA
TRANSLATOR
29
310-440
c
Ill DATA
DATA Cl
34
U9
DATA lAT H
33
I
L . . _ _
SHIFT
RE61STER
30
SYNTH CNT l DATA
U10
RF SYNTHESIZER
REFERENCE AND CONTROL BOARD
(A9A1)
(RTC-4039A)
Figure 11-3a. and b. Block Diagram
0 TO 8V LOG1C
23
IV 24 OATA
24
I 60.5 DATA
2S
8V 3 10-440 OATA
21
8V CLOCK
22
8V LATCH
~
8V 30C 350 CLAMP
20
W1 AMP LOIHI
39
m
·350 MHz EN
40
.01
2SO
MHz EN
38
35() 500 MHz EN
'-- 5V 300-350 CLAMP
35
'CO SELECT
36
GHz
OOP
SENSE
37
-
5-1 GHz EN
-
Figure 11-Jb. Reference and Control Board ( A9AI ) - Block Diagram ( Sheet 2 a{ 2)
11-9