Download Security Escort 2.15 Hardware Installation Manual

Security Escort
Testing and troubleshooting | en
Symptoms
65
Probable Cause
Possible Solutions\
No power to receiver.
Check power for 10.5 V DC to
13.5 V DC. If lower than 10 V
DC or no voltage present,
check wiring (PWR+ to PWR-)
on power side of receiver,
repair, or replace cable.
Close lightning hit.
Power down transponder (AC
and battery) for 30-sec., then
turn power back on. If bus
failure does not clear,
probable cause would be bad
bus on transponder.
Bad bus on transponder.
Remove cable from bus,
meter terminals with VOM. If
voltage is lower then 9 V DC
on BUS+ or lower then 12 V
DC on PWR+, replace
transponder.
Table 6.3: EA500 transponder bus faults
Symptoms
Probable Cause
Possible Solutions\
Single receiver not
Address switch in wrong
Rotate switch to correspond
responding.
position.
with transponder database
location.
Open on the bus wires.
Put meter across bus wire.
Should be reading between
7.5 V DC to 10.5 V DC. If
voltage is not present or
lower than 9 V, check wiring
(BUS+ to BUS-) for possible
ground or open.
No power to receiver.
Check power for 10.5 V DC to
13.5 V DC. If lower than 10 V
or no voltage present, check
wiring (PWR+ to PWR-) on
power side of receiver repair
or replace cable.
Defective receiver.
If power is present on BUS+
and PWR+ and rotary switch
is set to correct address,
replace receiver.
Robert Bosch (SEA) Pte Ltd
Hardware Installation Manual
2015.05 | V2.15.0 | DOC