Rockford RAV DVD1 issue

[Mr. Old School]

Does anyone out there have any experience with the RAV DVD1?

When I power it up only the buttons light up

The display stays dark

No buttons have function

Seems to be completly dead except that the buttons light up!

Could this be a serious issue or a simple fix?

Thanks guys.

[ppia600]

Almost seems like you're only powering up the illumination wire. Maybe the memory or acc wire isn't getting power...

[Mr. Old School]

I have the Reg/Yellow connected to + and Black to the ground. Should be nothing else to take into consideration for testing purposes?

[ppia600]

Red, Yellow, and black/ground?

[Mr. Old School]

Correct. Red/Yellow=Power, Black=Ground and just get the display lights and 0 function!

[Mr. Old School]

Also wondering how can it be that the buttons on the face plate light up but the display and the unit itself gets no power?

Could it be a circut failure in the unit?

[Perry Babin]

Are you sure the plug is wired properly. If someone accidentally pulled a wire from the harness and they didn't know where it went, they may have plugged it back into the wrong slot. From the owner's manual, it appears that the red, yellow and black should be all together on one end of the plug. Maybe someone here has a plug they can photograph and post.

Have you checked the voltage on the plug where the wires go into the plug?

The display lights may be wired directly to the illumination wire. If that's the case, I'd suspect that the red wire was in the slot for the illumination wire.

[Mr. Old School]

unfortunally I am not able to check the voltage on the wires due to lack of equipment.

The theory of the mixed wires sounds plausable, but should the lights only illuminate when the unit is turned on and not immediately turn on once power is applied?

[ppia600]

A lot of the older units had the illumination of the keys independently controlled by a seperate wire, that's what we are talking about. Could you take a picture of the plug and post it here? Its also possible that the circuit for the constant (yellow) wire isn't connecting to the board somehow or has a bad diode in series with the circuit on the board, or even a tiny fuse or bad trace. (this is if the red wire is in the correct position and not illumination, though)

[Mr. Old School]

I was made aware that often the flat cable that connects between the HU and display that carries all signals often fails and breaks the connection between the two. If this is the case the display would not be able to turn the HU on?