Service manual

INTRODUCTION AND OPERATION
1-5
October 1999
Part No. 001-2009-201
You may also send your order by mail or FAX.
The mailing address is as follows and the FAX number
is shown in Section 1.2.
E.F. Johnson Company
Service Parts Department
299 Johnson Avenue
P.O. Box 1249
Waseca, MN 56093-0514
1.10 INTERNET HOME PAGE
The E.F. Johnson Company has a home page on
the World Wide Web that can be accessed for informa-
tion on such things as products, systems, and regula-
tions. The address is http://www.transcrypt.com.
1.11 SOFTWARE UPDATES/REVISIONS
All inquiries concerning updated software, its
installation and revisions should be directed to the
Technical Service Department (see Section 1.2).
1.12 REPEATER OPERATION
1.12.1 MAIN PROCESSOR CARD (MPC)
Refer to Figure 1-1.
Programming Jack
J1 provides input connection from the computer
and the "flash memory" in the MPC. The program-
ming information in an IBM

PC programs the MPC
directly from the serial card through an interconnect
cable to the COM1 or COM2 port.
Reset
S1 provides a manual reset of the Main Processor
Card (MPC). A manual reset causes a complete
power-up restart.
Display and LEDs
Each combination of DS1 display read-out and
CR4/CR3 indication refers to an active alarm. See
Table 1-2 for alarms and definitions. LED indications:
CR1 blinking; MPC is operational, CR2 on; high
power, off is low power and CR5 on; indicates an LTR
Repeater.
Figure 1-1 REPEATER CARDS
IACMACMPC
J502
J501
J500
GRN
YEL
YEL
RED
RED
PROG
JACK
RESET
ON/OFF/VOL
LOCAL
MIC
SPKR
EXT SPKR
XMIT
MOBILE
SWITCH
HANG
CWID
+15V
GND
TP
J103
J100
GND
A D
LEVEL
R236
J102
J101
J104
J1
S1
CR1
CR2
CR4
DS1
S508
RF INTERFACE
BOARD
EXCITER/RECEIVER
PA
CR3
CR5
+5V
-5V
+15V
+15V ACC