Troubleshooting - Leds - Bosch EX36 Instruction Manual

20 en | Technical Information
PROBLEM
Horizontal scan lines,
rolling up or down
Reversed video or
faded image
4.2

Troubleshooting - LEDs

PROBLEM
Fuse blows
Unsure if LEDs are "On"
F.01U.172.707 | 3.0 | 2011.02
POSSIBLE CAUSE POSSIBLE SOLUTION
Ground looping
on video cable
Low voltage
POSSIBLE SOLUTION
– Check fuse rating.
– Check for shorting between the
enclosure and the input power.
850nm LEDs will have a faint red glow when
"On". 940nm LEDs are covert. Aim the LEDs
directly at an IR-sensitive camera to see the
lights or wait for the LEDs to warm up (two
minutes).
Instruction Manual
Corner-mount No-grip Camera
Check the coax cable shield is
not touching ground (for
example, at couplings).
Check voltage at input power
cable. Must be >10.5 VDC or
>12 VAC for camera section.
Check video leads for reversed
connections.
Bosch Security Systems, Inc.