Adding fans to Panasonic Plasma

[craftech]

Hi,

Recently replaced SC and surrounding boards on a Panasonic TC-P42X1 due to standard 7-blink failure code. There are no cooling fans on that model. Searched the forum for a mod to add them, but didn't find one. Forgive me if I didn't look hard enough, but does anyone have any suggestions on how to do that. I have quite a few quiet computer case fans. Zip ties and a separate power supply blowing in maybe?

Thanks,

John

[Andrew F. Ali]

Re: Adding fans to Panasonic Plasma

Yes you have all the required components to install fans in your PLASMA. I always add a gratis fan to my PLASMA jobs. Just make sure and set the air direction to extract hot air from the TV. I would normally take the 12-17Vdc from the PSU pin to close a relay that will turn on the fan, supplied with power from a small 12V SMPS.

[craftech]

Re: Adding fans to Panasonic Plasma

Sorry I didn't get back to this earlier. Forgive my manners.
Thanks for the suggestion Andrew

[tom66]

Re: Adding fans to Panasonic Plasma

I added a fan to my TC-P42S30 after the SC board repair.

The fan is powered off the F_15V line with a resistor that dropped voltage to 7V. This provides sufficient airflow whilst not being extraordinarily loud. I tapped off the 15V supply to the SC board so it would only be active when the panel was on.

[r-p]

Re: Adding fans to Panasonic Plasma

I often use the 5V powersupply which is normally strong enough (enough current capability to run a few extra fans) or indeed a 12-15V supply with some resistors. Not all 12V fans will run, or better not start up of off 5V.

I use old computer-/server-fans, not really quiet ones, so I need to drop the voltage more to get them to an acceptable soundlevel compared to new quieter fans

Two of my examples. In no way a perfect solution, but it may help to get ideas.

A 60" plasma, never used them until a fault reappeared and the fault wasn't solved by the extra cooling.

I did use a plug so the backplate can still be totally detached.

42" plasma, known for overheating issues. So that is why I put them on the heatsinks themselves. Loads more work than the 60"above. They have several speed settings and it is a WII/XBOX monitor, so noise isn't that much of an issue.

Link to moving gif.
It won't show correctly when linking it as a pic and sorry about the speed being a bit high. Made this years ago and wouldn't know where to find the original pics...