Motorola R-2001A Service Manual page 195

J17
....
EXT 10 MHz IN
10.0 MHz
TCXO
(OR)
ovxo
j
U2, 01
t
VOLT
E1 3
\._
O VEN SU PPLY
a
REG ULATOR
--
AND
OV EN IND .
DRIVER
-
'
Ul , 2
~1
INTI EXT
SWITC H
OVER
~E
DRIVER
SYNTH 10.0 MHz ,
7
Jl
E XT 10 MHz OUT ,
7
J18
LEO ANODE ,
7
El l
LEO CATHODE ,
7
E12
8521-21
Figure 19-1 . Frequency Standard Module A13
Block Diagram