Display screen for Officejet 6500 dissolved

[vantuckymyfoot]

Well, that didn't last long...

I posted here a couple weeks ago that I got my screen completely fixed, using the various methods described (hair dryer, hard pencil eraser, etc).  I just now sat down in my office to see SEVEN messed-up lines on the display.  This is ludicrous.  I guess it's time to pop it open again and do (the same) reconstructive surgery.  

I'm starting to get fed up with HP.  I'm thinking I may need to go Epson next time around, if on principle only.

[misha24]

Paul, great pics. All is great right up to step 10.  Hope you do not mind me tagging on your 9 steps by modifying step 10.

In step 10, use a soldering iron with a very fine tip and low heat (just hot enough to melt solder flux)  would recomend using a magnifying glass to get right onto each contact.   Gently press the soldering iron tip onto each contact in three places, top,middle, bottom. Then proceed through all contacts. Display works like new.

I wish HP made a better quality product.

Now I have to figure out how to get the Windows printer utility to work again.  The HP tech support from India suggested that the printer utility and driver problem may have been caused by HP updates downloaded automatically (recommended by HP).  But he would not fix the problem unless I paid HP a service charge.  Sucks.

Any ideas?

[rip057]

i believe what is going on is what is known as a dry joint.... there are a number of pins on this ribbon cable and it looks like it is soldered...i havent gotten the component board off of the housing yet to look at it... and honestly i thought i was gonna have to replace the whole thing, but after looking at these threads... its just a couple of dry joints... that could be fixed by a soldering iron... the solder that hp used at the time must have been total crap and has in time oxidized... the slamming of the lid.... and they slam, more than like shook it loose... cant wait to fix mine sometime today... mine is 8500 but its the same design

[rip057]

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OK scratch everything about a soldering iron...

[rip057]

here is what mine looked like in the beginning...

what mines looked like after what i did.... with just a hair drier, rubber band, and flatblade screw driver...

which was to first heat up the ribbon cable where it is up under and right next to the plastic housing which holds the lcd display....

after heating to mildly hot... i mean these things were meant for a soldering iron... i used a hair drier... just dont get it too too hot... you dont need to... after getting it hot... place the rubber band along the ribbon cable where you heated... at the junction from the cable to the board... take a flat head screw driver and press really hard on the rubber band as it lays on the cable... you gotta do this while it is hot... and then let it sit for a while... like 15 minutes... i say this because i waited five minutes on one try, and apparently it hadnt cooled down completely and while i was still looking at vertical lines missing out of the lcd... some started to magically appear... I guess because current is more conductive at lower temperatures, and since our original problem is a lack of current due to the crappy ribbon cable job by hp.. who knows its better to let it sit and cool down before you fold it over as to not upset the glue you just re-set...  it took a couple of tries but i was having issues with the left side until I thought about using a rubber band and a flat blade to press firmly on the junction

any how mine is now fixed...

[JRO123]

The process shown is accurate for disassembling the HP6500, but the method shown for repairing of the LCD is not quite as good as it can be. Instead of using a screw driver to press the ribbon cable to the LCD, do this. Take a hair dryer and heat the area where the ribbon contacts the LCD. While the area is still warm, use the erasure end of a pencil to press down the area where the ribbon end contacts the LCD. I go back and forth across the area, and also press down one small section at a time. I usually heat the area twice and repeat with the process. This method works on all LCD applications. You should get 100% LCD recovery.