Clarion DRB4475R - TROUBLESHOOTING; Power and Sound Issues; Loading and Display Problems; ADJUSTMENTS

| TROUBLESHOOTING
‘Problem Cause - Solution
Power doesnotturnon. ~~ Fuseisbiown. ——SsSReppacce with a fuse of the same amperage.
(No sound is produced.) _—_—sIncorrect wiring, _Wire properly. |
Compact disc cannot be loaded. Another compact disc is alee, “Eject the compact disc before loading the new one.
| loaded. _
Sound skips or is noisy. Compact disc dirty. Clean the compact disc with soft cloth.
Compact disc is heavily Replace with a compact disc with no scratches.
a i scratched or warped. i
“Sound i is bad directly after power is Water droplets may from on the Let dry for about 1 hour with the power on.
turned on. internal lens when the car is:
parked in a humid place.
‘Nothing happens when buttons are Microprocessor has maltunc-, Turn off the power, then press the OPEN button and
‘pressed. ‘tioned due to noise, etc. “remove the DCP. |
: Display is not accurate. Press the reset button for about 2 seconds with a thin
| rod.
' Reset button
|
fl
t
|
|
|
| DCP or source unit connectors! Wipe the dirt off with a soft cloth moistened with clean-
; are dirty. li ‘ing alcohol.
M@ ADJUSTMENTS
Measurin |
| instrumen
| Procedure
| 1. Input the 98.1MHz/30dB » (400Hz-MOD 30%)signal.
; 2. Turn on the power swtch. and,Press the AF button and CH6 button at the
same time.(TEST MODE)
| 3. Adjust the reading of LCD indicator to °30----00; (3.0V+0.2V) by VR1.
S-meter
SG
Adjust point
Tuner pack
DRX5375R/DRB4475R
-4-