Small flat head screwdriver (for pushing tabs, etc.)
Small Phillips screwdriver (one that fits the little screws mentioned
later in the post, I used a flat head for these screws btw.)
Very thin 3M double sided tape (thinner is better because you will
Some material as alternate for 3M tape, you will see what it needs to
be later on in the post
Needle nose pliers, or whatever they're called (for bulbs, but some use
their hands so, up to you)
On to the instructions
1. Take OBC out of your car. To do this, you have to push/pull the OBC
from the bottom through a hole at the top of the sunglass holder. I
find it easier to use a screwdriver (be careful not to scratch the
trim) on the sides of the OBC to kinda prop it out, then I push it from
the bottom and comes right out.
Below is a pic of the OBC out of the car.
2. Next, remove the back cover from the OBC. The two photos below show
the 4 tabs (2 on top 2 on bottom of the OBC) that you need to push in
to remove the back cover.
3. Below is the back of the OBC with the cover off.
OPTIONAL STEP, remove the bulbs from the OBC. I did this
because when I did another OBC before, one of the bulbs didn't work, I guess
since I shook it. I suggest removing them, but it's completely up to
4. Remove the display panel along with the circuit board. The two
photos below show the 2 tabs (one on each side) that hold the panel and
circuit board in place inside the cover. Just push the tab on one side,
hold the circuit board back (be careful not to crush anything on the
circuit board), then push in the tab on the other side, and wiggle out
the circuit board along with the panel. Be very careful when you do
this, it will come out, just do it slowly.
5. Here's the display panel and circuit board out of the cover.
6. Next you will remove the cover that is over the display panel. To do
this, you have to "unhook" 9 tabs, 4 are on top, 3 on bottom and 2 on
the sides (one on each side). The photos below show these tabs.
7. One the cover is off, you will see this. The display panel (glass or
plastic I'm not sure, didn't care to check) is held to the white part
by a "connector strip" (sorry but I have no clue what that's called) be
very careful not to peel the strip off of either the glass panel or the
white plastic, if you do, you'll have a lot of fun trying to put it
back together, NOT. Just make sure you keep that strip intact, my
suggestion is, after removing the orange strip and after bending the
white plastic away from the circuit board(you'll see later what I'm
talking about here) just set the panel onto the circuit board so that
it is hanging between the circuit board and the white plastic where
you're working,(again you'll see what I'm talking about in photos later
8. This is the orange strip I was talking about. Remember the
orientation of it (orange part faces out of the OBC, back/whitish part
is facing in) Set this aside for now.
Next you need to bend the white plastic back, away from the circuit
board. (it's optional and really not necessary but you can also remove
the white little plastic pieces that are behind the orange piece. They
didn't bother be since they never got in the way. Sometimes they fall
out sometimes they don't. this is up to you)
1st photo below shows the white little plastic pieces still in the
white plastic cover and also I've drawn the direction in which you will
be moving the white plastic.
2nd photo shows the 2 little "brackets"(I will refer to it this way
since I don't know what else to call it, sorry) that need to be removed
in order for you to be able to bend the white plastic back.
3rd photo shows one of the "brackets" removed partially, and rotated.
You will need to remove them completely and set aside.
4th photo shows, in blue, the little screws that hold those grey
"brackets". You just remove these screws, turn circuit board over, and
slide out the "brackets".
4th, in red, 5th, and 6th photos show the tabs you will need to push in
order to separate the white plastic from the circuit board. These are a
bit tricky. I marked them 1 and 2 for the following reasons,on side 1,
it is easier to push the tab and pull out the corner of the circuit
board. Next you just pull the circuit board up holding at that corner
until it clears the tab in the middle. Then, still holding corner 1,
you pull away from corner 2 in order to clear the little tab (as you
can see in the 4th and 5th photos, corner 2 has a cutout on the circuit
board, so instead of having to pull the tab to the side and pull the
circuit board up, you just do as I said, do the hard work on the easier
corner 1, then just pull out corner 2. I really really hope all this
7th photo shows two metal pieces that are attached to the plastic and
soldered to the circuit board. When you bend the white plastic back,
these are the pieces that are bending. Be careful to only bend it once
back and once back down when you're done, since you don't want to go
back and forth and break the thing off. If your OBC is very old, you
might want to have a soldering iron ready in case this does break)
Finally, 8th photo shows the white plastic bent back. Circled in red is
the area you will be working with.
Now, the fun part. The whole idea in this fix is to either replace the
existing "cushion" with a new one, or make the existing one thicker.
The reason for this is that the "cushion" pushes the "connector strip"
to the connectors on the white plastic, and this is how pixels are
transmitted from the computer to the display panel. Over time, the
"connector strip" looses it's grip at some points, thus no pixels
showing when you hit the TEMP button. Anyway,
I've posted 4 photos of the work that needs to be done and will refer
to them as 1st, 2nd, 3rd, and 4th when writing instructions,
I'm sorry I didn't take a photo of the old "cushion", which you can see
in the 2nd photo (I cut it in pieces while removing it)
The 1st photo shows the 3M tape put in place of the old "cushion". The
tape is 2 strips taped to each other than taped to the white plastic.
You will easily locate where to put the new "cushion" since there are 2
plastic strips, on big one small, running along the edge, as you see in
my little diagrams in the 3rd and 4th photos. THE "CUSHION" THAT'S TO
THE OUTSIDE OF THE OBC DOESN'T MATTER SO DON'T MESS WITH IT, UNLESS
YOU'RE REALLY BORED.
(As I said earlier, if your tape is thin enough, you can simply put a
strip of tape onto the existing "cushion" and get the same effect. You
will see in the diagrams in the photos that the existing cushions are
shorter than the big plastic tab that runs the whole way on the edge.
The "connector strip" is at the level of the plastic tab, so ideally
you want a cushion just a tiny, tiny bit higher than that plastic tab.
If it's too high, it's bad because the circuit board will bow out since
it's much tighter at the corners, and you'll probably loose even more
pixels. Mine was a bit higher, and when I first connected the OBC to
the car, the pixels in the middle were a little bad, but once I put it
in it's place, the middle was held together by the molding and
everything worked out great, as you will see in the final photos)
The photos might be a bit confusing since I couldn't get a clear shot
up close, but you'll understand everything once you actually look at
Well, You're done!!! Once you put the new "cushion" in or "mod" your
old one, just make sure it's not higher than that tab like I said and
you're good to go. Put everything back together opposite of what you
did to take it apart.
Bend back the white plastic and clip the circuit board into it.
Reconnect the grey "brackets"
Put white plastic pieces back in (if you took them out)
Put orange piece back in the right way
Fold back the display panel
Put the little cover over the display panel back
Put the bulbs back
Stick the circuit board and display panel back into the plastic cover
Put the back cover on or go to the button DIY if you need to
10. Finally, enjoy your "new" OBC, with all the pixels.
One additional step. I removed the metal strips (the light contacts)
from the back of the
white plastic piece. With a small screwdrive I carefully lifted the
metal strips off each of the white plastic nibs, then bent the metal
strips out of the way. This made it really easy to separate the white
plastic from the circuit board.
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