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Dan
Dan, Master Tech and Repair Facility Trainer
Category: TV
Satisfied Customers: 7177
Experience:  USAF trained; A.A.S Electronics; A.A.S. Education; Currently teaching advanced troubleshooting and repair for the DoD.
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how do you replace fan no 2 on model hl72a650c1f samsung dlp

Customer Question

how do you replace fan no 2 on model hl72a650c1f samsung dlp tv?
Submitted: 5 years ago.
Category: TV
Expert:  Dan replied 5 years ago.
Please read this whole post. If you have more questions after that, just ask. Once you're satisfied, please click the green "Accept" button (that's how I get paid). If you feel I may have saved you a headache or professional labor charges, please also consider leaving a tip and positive feedback. Thanks!

Thanks for the question. My name is Dan.

Fan #2 should be the lamp exhaust fan. Pretty easy to get to. You'll need to remove the TV's lower rear panel, then stand behind the TV. On the left you'll see the electrical chassis, and you'll see the optical block on the right. Right away you'll see fan #1 on the DMD board (metal case with holes in it). The lamp fan is nearby, on the same main assy. See my picture.

Now first you'll want to remove the rear panel and hold down the door switch (see picture). With that switch held down, turn the TV on. Make sure fan #1 on that metal case spin up OK. Not jerky. Make sure it's smooth and fast. It probably will be. If that fan is fine, go ahead and replace fan 2. If fan 1 is jerky or static, let me know because you might have a bigger problem.

Fan 2 part number is XXXXX You can get one from about a million places on the web.

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Respectfully,
Dan
Customer: replied 5 years ago.
I see the fan, is it held in by a single silver, vertical screw/
Expert:  Dan replied 5 years ago.
No, remove the ballast cover (3 screws)...
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Customer: replied 5 years ago.
Ok I am starting to feel dense. I dont see the ballast cover at all. I do see a fan to the right and set back somewhat in the lamp cavity.
Expert:  Dan replied 5 years ago.
Ok but you see the fan, right? See my picture. That's the fan I'm talking about. The cover is on top of the fan.
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Customer: replied 5 years ago.
OK, so one more dumb question. Looking at your pictures the chassis has been removed. I guess I need to do that to get to the screws? If so, it looks like maybe three screws on the chassis then it slides out? Thanks.
Expert:  Dan replied 5 years ago.
Yes you need to slide the optical block out:

Disconnect this cable:

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Disconnect the LVDS cable:

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Remove 2 screws (circled in red) and the block will slide out far enough:

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