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Re: No back light on display
I know that most Clarions have an "illumination" wire usually orange and or orange/white. If the unit only has one, then most likely it is for a "dimmer circuit" and not atraight illumination. Let me know. If by putting power on tat orange wire does not do it, then you have a bad "bulb" in the faceplate.
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Assuming you do not have a dimming wire (orange or orange/white) connected, it sounds to me like the display lighting is out. Small bulbs might be able to be replaced if you can find the parts and are technically inclined. If not, I'd suggest looking for a replacement face at pacparts.com or buying a new radio. Probably a new radio because the face will most likely cost more than the entire radio.
The display is not an LED (Light Emitting Diode) it is a LCD (Liquid Crystal Display), behind the display is a tiny light or light bulbs that back light the display, yes they can be replaced, you can buy the bulbs at Radio Shack if the number can be crossed over, but most likely they are a Radio Shack # 7219 Micro Lamp
It sounds like they messed up your installation. You can confirm their work by verifying that each wire was attached properly.
2005 Pontiac Sunfire Car Radio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: Pink
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
Click on this link for a PDF of the installation instructions of the radio (If you don't have the installation guide that came with the radio).
Illumination is the grey wire from the car to the orange with white stripe from the radio.
I suspect that the yellow wire from the car is not connected properly. When the orange wire (constant power from the car) is attached, but not the yellow wire you can insert and eject cds, but it will not turn on. Constant power is used for maintaining the clock and preset radio stations.
If everything looks correct, I would take your car back to the installer and have them correct the issue.
This radio has 2 lamps in the display to provide backlighting for the LCD, if 1 of them goes out, they both go out because they are in series.
The part number and specs are:
B30-1485-05 LAMP (5.5V 0.125A) ref # PL1 and PL2
To be sure this is the problem use this rule:
If the buttons on the display light up but the LCD does not, means the supply voltage is present, both use the same supply voltage.
The LCD does not light up, but you can see a very faint image of the display when you look close.
If either of the last 2 things mentioned are not true, you have a different problem.
If the buttons on the display do not light up as well as the LCD not lighting up, you have a bad voltage regulator IC on the main board of the radio, not a problem in the display. Or you have a bad connection for that supply voltage.
The part number for that regulator is:
BA4911-V4 ref # IC7
If the backlighting for the LCD is good, but you see no numbers or letters on the LCD, the LCD or the LCD driver IC is bad.
Both of these problems require very good soldering skills, unless you are confident with your own soldering skills I advise you to take it to an authorized Kenwood service center for repair.
Let me know if you need any more help and tell what you observe from the rules above.
The illum wire goes directly to the headlight switch and tells it when to light up, where as the dimmer wire is variable meaning it would dim up or down with your dash light control. Dimmmer is usually only need on factory radio's and not aftermarket. I suggest wiring only to the illuum lead and do not connect dim. Also about the clock make sure your red and yellow wires are not crossed, yellow is a constant hot and red is only hot when the ignition is on, so if they are backwards the radio would loose it's memory when you turn the key off.