"Full of the sound of the Gran Fury, signifying nothing." (granfury)
12/20/2016 at 00:51 • Filed to: None
2
11|
"Full of the sound of the Gran Fury, signifying nothing." (granfury)
12/20/2016 at 00:51 • Filed to: None | 2
| 11 |
I found a crappy Magnavox 39" TV over at the Goodwill Outlet for $10. It sorta powers on (red LED only), and a little research shows the problem to be the main circuit board. I found one pulled from a working TV with a broken screen for $25 and it looks like an easy install. Who knows how long it will last, but a 1080p TV for $35 seems like an OK deal. Maybe now I can fire up the old PS3.
Tazio, Count Fouroff
> Full of the sound of the Gran Fury, signifying nothing.
12/20/2016 at 01:07 |
|
Haha it might work great for years
NotUnlessRoundIsFunny
> Full of the sound of the Gran Fury, signifying nothing.
12/20/2016 at 01:09 |
|
Sounds like a “what the hell, it’s worth a try” project.
Plus if it works it will be far more satisfying than just buying a new one. “Check out my $35 Flatscreen dude!” Etc.
|
Full of the sound of the Gran Fury, signifying nothing.
> NotUnlessRoundIsFunny
12/20/2016 at 01:27 |
|
Well, the TV it will replace is a $9,500 German-made 55" Loewe that I found for $100 (also at the Goodwill store - they couldn’t figure out how to make it work, but thinking like a German I figured it out). That one lasted a couple of years before the color wheel disintegrated and left me with a high-definition black and white TV.
Zibodiz
> Full of the sound of the Gran Fury, signifying nothing.
12/20/2016 at 01:32 |
|
Good luck. Be careful buying parts off ebay; at least 50% of the time, they’re junk, and you have to pay return shipping. www.shopjimmy.com is the best source for cheap guaranteed-to-work parts. I’ve bought hundreds of parts off them, and only once had a DOA.
Source: I’m a certified TV repairman... and I sorta own a TV repair shop.
|
Full of the sound of the Gran Fury, signifying nothing.
> Zibodiz
12/20/2016 at 01:41 |
|
I haven’t had the best of luck repairing monitors with parts off of eBay (I like 1200x1600 4:3 monitors for reading letter-size documents) and work to keep these old things running.
The listing for the circuit board says that it was pulled from a working set that had a damaged screen, so I’m hoping that it’ll work OK. But what caused the broken screen? Was it a punch because the circuit board failed, or just a household accident?
Birddog
> Full of the sound of the Gran Fury, signifying nothing.
12/20/2016 at 01:56 |
|
Check that bad board out. It might just be a blown capacitor or two on the power board. I got a 40" Samsung a couple of years back that was doing that. $4 in replacement caps and it was good as new.
Arrivederci
> Zibodiz
12/20/2016 at 08:46 |
|
Feel like doling out some free advice? LOL.
I have an older 46" Sony Bravia LCD. It was pretty much top of the line when it was new, roughly 8 years ago. It has 4 HDMI ports and has recently started having issues retaining the input signal over each HDMI port. Basically, you’re watching with a great picture and then the screen flashes black and it acts like it’s hunting for a signal, then it flashes back on the picture of what you’re watching. I’ve tried multiple HDMI cables, each port, etc. I have an antennae into the coax input and it works without ever doing the same behavior.
Does this sound like a circuit issue or could the HDMI ports be going bad? I hate to get rid of it because the picture is still perfect.
|
Full of the sound of the Gran Fury, signifying nothing.
> Birddog
12/20/2016 at 09:17 |
|
Having repaired many a monitor that was the first thing I checked, and all the caps looked OK. A search on the Internet regarding this set (and other brands from the manufacturer, Funai) indicates that it is the other board, and one chip in particular, that is the common point of failure.
|
Zibodiz
> Arrivederci
12/21/2016 at 03:33 |
|
Could be a couple things. First thing I’d try is to get another HDMI device (Xbox, DVD player, etc) to make sure it’s not whatever you’re trying to watch. Then, if the problem happens with the new device and a different cable, we know it’s either a bad HDMI port (unlikely if you have more than one port; they don’t all go bad at the same time), or a bad decoder on the mainboard. The good news is that the mainboard is the part with the ports in it, so either problem would require the same part. Look up your TV on shopjimmy.com and see if they’ve got any mainboards for it. You have to compare the numbers on the board itself, or possibly the TV’s serial number to make sure you’re getting the right board revision, but the repair is a pretty simple one. It just requires taking the back off the TV, and about 4 bolts that hold the mainboard in place, plus some cables that have to be unplugged. Generally, Sonys don’t need to be reprogrammed or anything; just plug & play. Most likely a $75-ish part, if it’s available.
|
Arrivederci
> Zibodiz
12/21/2016 at 08:07 |
|
Thanks!!! Must be the mainboard - I’ve done the process of elimination with different devices (XBONE, PS3, Chromecast, HDMI cable in, etc) and it acts the same on every port, so something must be a little wonky on the board. I’ll check out that site and see if I can order a new board.
|
Zibodiz
> Arrivederci
12/21/2016 at 20:52 |
|
Good luck!