Rockford Fosgate RAV Serie Manuel D'installation Et Fonctionnement page 29

S
YMPTOM
Radiated Noises
CD skips
excessively
Engine Noise
IR Remote
S
YMPTOM
IR Remote has
poor range
IR Remote does
not work
D
IAGNOSIS
No RF suppression of blower motors
No RF suppression of switches
Source unit mounted at an incorrect angle
Source unit not secured properly (Standard
Mount)
Source unit not secured properly (ISO Mount)
Source unit is not grounded properly
Noise is radiating into RCA signal cable
Bad component in the signal chain
Noise is radiating into the speaker cables
Multiple grounds in the audio system
D
IAGNOSIS
Batteries are weak
Excessive dirt or dust on IR Remote trans-
mitter lens or unit receiver lens
IR remote is outside of optimum transmitting
range
High sunlight conditions
Batteries are dead
Battery is installed incorrectly
R
EMEDY
Connect filter cap (Radio Shack #272-1085) in-line on B+ near
blower motor.
Connect a .1µf – .01µf non-polarized capacitor across switch
contacts
Check mounting angle of source unit (mount within ±20˚ from
horizontal) and repair as necessary
Check tightness of installation sleeve and back strap; repair or
replace as necessary
Check tightness of mounting screws and repair or replace as
necessary
Check connections and repair wiring as necessary
Check connections, run the RCA cables on a route away from
sources of high current
Check connections. Bypass all components between the Source
unit and the amplifier. Connect one component at a time to
determine the culprit. Repair or replace components as necessary
Disconnect speakers and connect a test speaker to the output
terminals or the source unit. If noise is gone, reroute the speaker
cables away from sources of high current
Check ground connections and connect amplifiers, signal processors,
and other components to a central location or try a different
grounding point on the chassis
R
EMEDY
Check battery condition and replace as necessary with (2) AAA
(+1.5 volt) batteries
Clean transmitter and receiver lens (compact disc logo) with
Plexiglas solution and a non-abrasive cloth as necessary
Operate IR remote within about 15 ft and ±45˚ from horizontal
of the Source unit' s faceplate
Operate IR remote closer to Source Unit
Check battery condition and replace as necessary with (2) AAA
(+1.5 volt) batteries
Check battery installation and repair as necessary (polarity is
indicated inside remote)
T
ROUBLESHOOTING
29