- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
You didn't specify if you wanted the display brighter in the daytime while headlights are off or if it is too dim when the headlights are on, with respect to the rest of the instrument panel illumination. Too bright is easier to deal with but too dim is tough. If it is always too dim under but daytime and night time conditions the only way to improve brightness would be to very gently disassemble the front panel (easier if it is the removable type) and determine what provides the back lighting. If there are tiny LEDS you could painstakingly add more LEDS or swap them out for brighter LEDS. There could be a lot of guesswork determining if this or that LED was brighter than what is in the unit as built. It may just be easier to live with it as-is.
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.
I have the same problem. I'm pretty certain that the display is a fluro which just plain wears out - like a lot of microvave displays. I have just found out that the Oz agent is now Bosch, so I'll contact them & see if a display tube is a spare item or whether you have to get the whole detachable front.
It could be the dimmer - Press and hold [MENU] (DIM) for more than
2 seconds to change dimmer level setting.
I suppose you tried playing with the display button as well.
Besides these, there's also a decent chance that either the display lamp is not getting power, or that it's out.
That takes taking the thing apart, and you probably don't want to do that. Better take it to a repair shop in that case.