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View Full Version : CL9 back light promblem ------> need part number please anyone???



egSi
08-06-2011, 11:19 AM
hey yo,

my 03 has recently fallen victim to the dead back light problem on the audio unit. Can anyone supply me with part number for the part to fix it? ie the number for the 'PCB board' or the whole unit itself? or can link me to where i can look it up myself?

Thanks in advance guys.

cheers
Trav

egSi
09-06-2011, 10:19 AM
can anyone help? i have the acuara part number for what i need, am i somehow able to convert it to a honda number?

surely someone can help? :(

ricerockets
09-06-2011, 11:01 AM
have you tried looking for the part using the acura number?

unfortunately i dont have my service manual with me or i would take a look for you

ricerockets
09-06-2011, 03:28 PM
a thought just came to mind, did you know the tsx dashboard is different from our accord euros?

due to the different dashes, they would have different radios and compartments, but the USDM honda accord uses the same dash as ours

acura tsx interior:

http://image.hondatuningmagazine.com/f/31051617/htup_0509_10+2004_acura_tsx+interior.jpg

USDM honda accord interior:

http://static.howstuffworks.com/gif/vehicle-pictures/2005/honda/accord/04802041990002-480.jpg

so im going to have to say no to converting acura part number to honda part number, but since the USDM accord uses the same radio you might be able to get a part number for the USDM accord and then no need for converting =D

also do you know for sure that its the PCB that needs replacing as it may be just a surface mounted resistor/fuse that may have overheated and/or blown

ricerockets
09-06-2011, 04:02 PM
one last thing (sorry):

if you would prefer to DIY it and are handy with a soldering iron, then have a look here: http://www.askmehelpdesk.com/advice/t-8584.html

look at posts from jan 3rd 2006 (most posts above are people trying to get it covered under warranty), reading posts 03/01/06 onwards read specifically posts by mystified88 and hypo, as they've actually done it

sorry if i posted a bit too much haha, hope everything goes well with yours mate.

egSi
09-06-2011, 06:15 PM
dude!!! youre my hero!! thanks so much for the info.

greatly appreciated, totally learnt some shit lol

i would definitely DIY it but i cant get that link to work for some reason? can you plz check it and report?

thanks heaps man!

ricerockets
10-06-2011, 01:32 AM
basically what you need to do is remove the radio unit, if you dont know how to do it try these two links:

http://www.cardomain.com/ride/561772/2003-honda-accord/page-3
http://www.cdplayerrepair.com/Remtips/accord_rem.htm

after you've done that, the reason why the backlights dont work is because of "an electronic component Honda calls a resistor. More than likely it is a resistor, but of a very small value 0.1 ohms or so. Anyway, the backlighting/climate lights get power which is passed through this part. It apparently burns out (Open) after some time has passed." because Alpine (i heard they make our radios) for some reason decided to put in an area that is prone to high levels of heat.

"It's a special resistor though, not like the rest on the board. If you can fix things, here is what you do. Take the radio out - this is truly the hard part! Open the bottom by first taking off the heatsink and some screws. Pry the bottom off carefully and remove the circuit board. Unplug the ribbon cable and look at the Parts side of the board. Located very near the heatsink is a resistor labeled something like R727 (sorry not exact) You can't miss it... it is black and located between two other parts that appear similar."

"Anyway, if you'd like, measure the part. It should read virtually a short 0.1 ohms or zero ohms. The problem is that it doesn't, and that is why your radio lights don't come on. It gets very hot, and after some time burns open to Megaohms. Solder a piece of wire (jumper) over it, and the lights should work again. I believe the two parts that surround this resistor are both diodes, but I can't remember exactly. Anyway, it is RIGHT next to the metal that holds the transistors and audio chip to the heatsink. I don't think I am stiring anyone wrong here! This is a very small part though, so be carefull not to hurt the circuit board while soldering. If you are capable of this type of work, then you know how to use an ohm meter to read the part."

"I've found the part. It is reading 300,000 ohms so this must be it. It is part number R797 and is a small black box like surface mount resistor, but still fairly large. Unfortunately this part cannot be accessed from the back (solder side) as it's wiring is sandwiched in the board. So I'm going to jump it from the component side of the board. Since I only have a normal soldering iron and not a SMT model, this should be fun as there's barely any space between the part and the heat sink assembly. "

you will most likely need to get the stereo code for your radio, check your service logbook/owners manual too see if its there if not you will need to get a serial number from the back of the radio and call a dealership

heres a photo of the resistor its the one in the center of the other two resistor looking ones:

http://images17.fotki.com/v28/photos/2/270663/4175621/IMG_0801-vi.jpg

most of the american guys just used a bit of wire and just jumped the resistor, and since it would be running it in parallel, the current will run through the wire and bypass the existing resistor, it seems the working space is fairly tight so instead of removing and replacing they left the resistor where it is and just bypass it

hope everything goes well with it mate, keep us updated

egSi
13-06-2011, 12:14 PM
awesome thanks allot man! as soon as i have some time im going to try this out! thanks allot!! :)

marquee
12-07-2011, 10:28 PM
Did you end up trying this out just happened to me

marquee
15-07-2011, 09:20 PM
anything?