2011 JBL Nav Dead Backlight + Digitizer, Options?

I just posted my repair experience of the touchscreen on my unit which appears to be the same as yours. My LCD display and backlight work fine - I only needed the front glass. See Replaced 2011 JBL Nav Touchscreen ... Success !! | PriusChat

Depending on how much of a gambler you are, the touchscreen, LCD display and the logic boards are all available from Chinese vendors ... if you go to aliexpress.com and search for LQ070T5GA01, you'll see the parts. I have a 2011 Prius with JBL Nav (DENSO radio with E7022 printed on the lower front of the pivoting screen assembly). I certainly can't guarantee any of those parts are 100% compatible, but it sounds like you are pretty handy with repairs and *might* want to take a stab at it. Good luck!

 

I would conclude the same thing, but there is a smaller chance the ribbon cable or its connector could be damaged or there is a power/signal problem in the radio that feeds the display, or something else.

I did take a pic of the back of the display assembly when I had mine disassembled (below). The boards on aliexpress seem to have the exact same connector configuration (ribbon cable to the radio, LCD drive, touchscreen and LCD power), but some of the chips are slightly different. The board is *probably* compatible with your unit.

I'm guessing the gray chip in the upper right generates the high voltage for the LCD backlight particularly since there are air gap slots cut in the PCB for arc prevention. If that chip failed, that would explain the backlight issue, but it wouldn't explain the touchscreen not working, so it is a bit of a mystery. Good luck!

 

The shiny metal 'latch' is hinged and rotates UP to release the pressure on the flex cable. You can see it in the UP position in my pic and the DOWN position in your pic. The touchscreen connector releases by moving the white plastic 'wedge' toward the flex cable and the LCD connector is released by moving the black plastic 'wedge' in the same manner. Be careful as they are somewhat fragile; when properly released the flex cable can be removed with little to no force.

 

Hello,

Not sure if anyone is following this thread but just wondering if someone had more information about my situation. My JBL E7022 suddenly went dark. I’ve checked the basics including the various dimming options and none effect the screen. I can barely see what the screen should show, that is the map or radio stations. I can also navigate as the touch screen works. It seems as if the backlight is out. Which part would I have to purchase to fix the backlight issue? I wasn’t sure from the conversation above.

 

I would think a replacement board would likely fix your issue and you would could reuse the digitizer (aka touchscreen). The model number is under the ribbon cable (see my post #4 - I have a 135942-22200910 which is available at Brand new Logic PC Board Display pcb 135942 22200910 for Toyota Car DVD display -in Car Monitors from Automobiles & Motorcycles on Aliexpress.com | Alibaba Group

To be safe, you would need to know your exact model number and order whatever matches it.

 

How do you know the exact touch screen-digitizer to order? I am replacing the touch screen only on a JBL 57034. I see all the great info on model numbers for other parts but how do you get the correct touch screen?

 

can anyone tell me if they know anyone that repairs these. my whole system went black and does nothing. no backup no navigation no radio no bluetooth... nothing.
I had it checked at a radio shop and they said all the fuses are good and there is power to the radio.
any help please. I want my radio back
it's the E7039 JBL.
2013 prius 4