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micky <NONONOmisc07@bigfoot.com>: Feb 26 03:14AM +0200 Just before I went out of town, a neighbor gave me a 40" flat screen tv that, she said, got sound but no picture.   I didn't even have time to see what brand it is, but she said it wasn't a Samsung, like the box from their new one.   What are the chances you'd be able to fix this at a reasonable cost?   On a scale of 1 to 10, I'm about a 4 to 5 in ability to fix electronics.   What are the chances *I'll* be able to fix this? I figure it needs a HV rectifier tube like a 1AV4 (iirc) or a flyback transformer.   If not that, maybe a video board which will cost as much as a used TV? Plus I won't be able to return the board even if it doesn't help. (P.S. I know it doesn't have tubes or a flyback. ;=) )

John-Del <ohger1s@gmail.com>: Feb 25 05:36PM -0800 On Monday, February 25, 2019 at 8:15:04 PM UTC-5, micky wrote:   > If not that, maybe a video board which will cost as much as a used TV? > Plus I won't be able to return the board even if it doesn't help. > (P.S. I know it doesn't have tubes or a flyback. ;=) )     You need to give us more than that. Plasma or LCD/LED? Other than the fact they produce a TV picture, they share very little circuit topography.   If it's a plasma, we need to know if the panel is priming.   If it's an LCD/LED, we need to know if the back lights are enabled.   And that's just the start. Give us a model number at least.

micky <NONONOmisc07@bigfoot.com>: Feb 26 03:42AM +0200 In sci.electronics.repair, on Mon, 25 Feb 2019 17:36:49 -0800 (PST),   >If it's a plasma, we need to know if the panel is priming.   >If it's an LCD/LED, we need to know if the back lights are enabled.   >And that's just the start. Give us a model number at least.   Well, that will have to wait until I get back home. I was leaving the next day so didn't have time to take it out of the box even part-way to find out the brand.

tabbypurr@gmail.com: Feb 26 02:26AM -0800 On Tuesday, 26 February 2019 01:15:04 UTC, micky wrote:     > If not that, maybe a video board which will cost as much as a used TV? > Plus I won't be able to return the board even if it doesn't help. > (P.S. I know it doesn't have tubes or a flyback. ;=) )   Maybe it just needs a new red EHT current limiting lightbulb. Most common problem is bad caps in the PSU. Backlighting prolems also occur.     NT

Tim R <timothy42b@aol.com>: Feb 26 08:09AM -0800 On Monday, February 25, 2019 at 8:15:04 PM UTC-5, micky wrote: > Just before I went out of town, a neighbor gave me a 40" flat screen tv > that, she said, got sound but no picture.   She was on the roof with binoculars. She saw you coming a mile away.   Now you're stuck with electronics that will cost you minimum $25 to recycle. You can't just throw this away, the trash people won't take it. You may even get fined for putting it out.   Repair? Unlikely. (based on posting history, electronic troubleshooting is not your strong suit)

John Robertson <spam@flippers.com>: Feb 25 08:44AM -0800 >> house.   > Per the literature, our Bosch uses 2.4 gallons of water for the typical load, ...   > Also useful for sterilizing radio chassis and other equipment that has been 'moused' or worse.   Not if you want to stay married. Or do you have a separate machine for cleaning electronics gear than the kitchen machine?     > Peter Wieck > Melrose Park, PA   John ;-#)#   -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 (604)872-5757 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out."

tabbypurr@gmail.com: Feb 25 08:48AM -0800 On Monday, 25 February 2019 16:44:48 UTC, John Robertson wrote:   > > Also useful for sterilizing radio chassis and other equipment that has been 'moused' or worse.   > Not if you want to stay married. Or do you have a separate machine for > cleaning electronics gear than the kitchen machine?   Some folk have been known to wash bog seats in them. Those are the ones that don't stay married.

Fox's Mercantile <jdangus@att.net>: Feb 25 11:00AM -0600 On 2/25/19 10:44 AM, John Robertson wrote: > Not if you want to stay married. Or do you have a separate > machine for cleaning electronics gear than the kitchen > machine?   I have three dishwashers. One in the kitchen at the house, one in the kitchen in the "mother in law" apartment behind the house, and one at the shop.   -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com

"pfjw@aol.com" <peterwieck33@gmail.com>: Feb 25 12:22PM -0800 On Monday, February 25, 2019 at 11:44:48 AM UTC-5, John Robertson wrote:     > Not if you want to stay married. Or do you have a separate machine for > cleaning electronics gear than the kitchen machine?   John:   It is a division of labor that has worked now for very nearly 39 years, 36 of them married. I am in charge of appliance O&M and their proper function. My wife is a user of same, and as long as they operate smoothly when she needs them, she could care less on the throughput.   As we are on a municipal sewer with the means to control phosphorous, and chelate heavy metals, I have no qualms about using conventional detergents. Which, in turn, contain enough bleach as to render any creepy-crawlies dead. So, when she needs the Dishwasher, the inside (stainless) is pristine and odor-free.   Our shared joke is that the hobby keeps me close to home, does not eat, and is cheaper than another woman.   Peter Wieck Melrose Park, PA

John-Del <ohger1s@gmail.com>: Feb 25 12:26PM -0800 > It is a division of labor that has worked now for very nearly 39 years, 36 of them married. I am in charge of appliance O&M and their proper function. My wife is a user of same, and as long as they operate smoothly when she needs them, she could care less on the throughput.   > As we are on a municipal sewer with the means to control phosphorous, and chelate heavy metals, I have no qualms about using conventional detergents. Which, in turn, contain enough bleach as to render any creepy-crawlies dead. So, when she needs the Dishwasher, the inside (stainless) is pristine and odor-free.   > Our shared joke is that the hobby keeps me close to home, does not eat, and is cheaper than another woman.   You must have some high falootin' women round your parts Peter..

Ralph Mowery <rmowery28146@earthlink.net>: Feb 25 03:43PM -0500 In article <d049a775-a270-40af-9591-55c3af0773e0@googlegroups.com>, ohger1s@gmail.com says...   > > Our shared joke is that the hobby keeps me close to home, does not eat, and is cheaper than another woman.   > You must have some high falootin' women round your parts Peter..   I think other women would be cheeper for me than the hobby IF I had the money.

"pfjw@aol.com" <peterwieck33@gmail.com>: Feb 25 01:01PM -0800 On Monday, February 25, 2019 at 3:26:16 PM UTC-5, John-Del wrote:   > You must have some high falootin' women round your parts Peter..   I would like to think so!   Peter Wieck Melrose Park, PA

Terry Schwartz <tschw10117@aol.com>: Feb 26 05:37AM -0800 That is all true -- except that the common detergent packs or liquids are extremely caustic. Much more so than the liquids used for hand-washing dishes. Something to consider.   Terry

tubeguy@myshop.com: Feb 25 10:59PM -0600 On Sun, 17 Feb 2019 16:12:53 -0600, Fox's Mercantile <jdangus@att.net> wrote:     >The Failed motherboards were, Dell. >Their "Lets buy cheap shit" almost put them out of business. >And that was almost 20 years ago.   It dont surprise me it was Dell. A friend had a Dell that was from the early 2000s. It had XP on it. It was so frikkin slow I could literally outtype it, using notepad. She asked me if there was something wrong with it. I changed some settings and that did nothing. Since there was nothing on the computer except a few free games, I formatted the hard drive and reinstalled XP. Still slow.....   Heck, I had a much older and lower powered computer at the time that was running Windows 98, which was 10X faster than that Dell.   A few years later I got an almost identical Dell computer given to me. I installed XP on it and was shocked to find it was just as slow as the friend's computer. I didn't even bother with it any further. I removed the drives and sent the rest of it to the recycler....   Things may be different with Dell today, but I will never buy any Dell computers, new or used, after that experience.   I strictly use all IBM/Lenovo computers. They last forever. I still have one that works fine and is 20 years old. My newer ones I own are great too.

Fox's Mercantile <jdangus@att.net>: Feb 25 11:49PM -0600 > Things may be different with Dell today, but I will never > buy any Dell computers, new or used, after that experience.   Dell like most PC suppliers have a wide range of models, from cheap to high end.   It's like saying "I'll NEVER buy another Ford product" because of the Pinto, or "I'll NEVER buy another Chevy product" because of the Vega.     -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com

Clifford Heath <no.spam@please.net>: Feb 26 04:11PM +1100 On 23/2/19 3:18 pm, Jeff Liebermann wrote:   > Good luck and please let me know if you find anything in your power > supply. I suspect the IFR-1600 might be similar to the IFR-1500 power > supply design.   I have a COM-120A which has an external power supply bolted to the back.   It was faulty already when I received it (probably baseband module needing capacitors) but while in storage awaiting attention the CPU board got tired also and the video went strange, followed by it not booting up at all. Although the RF path is probably ok enough, these had an 80186 that was woefully underpowered - the -B and -C introduced more powerful CPUs - so now I wonder if it's even worth attempting to resurrect it - though an acquaintance nearby has one on which he replaced the video board and made it go again. Just too much work needed for too little result.   Basically I can only ask folk to "vote with their feet" and stay away from manufacturers that don't release full service documentation including schematics. IFR was a bad example.   Clifford Heath.

micky <NONONOmisc07@bigfoot.com>: Feb 26 03:57AM +0200 In sci.electronics.repair, on Wed, 20 Feb 2019 07:14:36 -0600, Fox's >> Interference? I don't know how you can tell that with a digital tuner.   >You can't.   >It's like Hatlow's "They'll do it every time."   It's a long time since I saw that cartoon. I'd forgotten all about it, but I sure liked it at the time.   >A bunch of neighbor's pointing at the local amateur radio guy. >Among other comments, "I hear he even interferes with Doc's >diathermy machine.   He shouldn't do that.

cpthao@gmail.com: Feb 25 03:29PM -0800 > -- > David Farber > Los Osos, CA   Hi David. I know this thread is a bit old. How do you solder the 100k resistor to noninverting pins #3 and #5? Do you happen to have a picture of the actual solder of the resistor? Also on the resistor, what watt is the resistor? Thanks!

John-Del <ohger1s@gmail.com>: Feb 25 05:57PM -0800 > > David Farber > > Los Osos, CA   > Hi David. I know this thread is a bit old. How do you solder the 100k resistor to noninverting pins #3 and #5? Do you happen to have a picture of the actual solder of the resistor? Also on the resistor, what watt is the resistor? Thanks!   The wattage is unimportant. If you're using leaded resistors, use 1/8 watt and go from pins 3 and 5 to the nearest ground (like pin 4). What I would do is use a couple of smd resistors and tack them from pins 3 and 5 to pin 4 ground.   Did anyone try actually replacing those op-amps?

micky <NONONOmisc07@bigfoot.com>: Feb 26 03:51AM +0200 In sci.electronics.repair, on Wed, 20 Feb 2019 00:33:16 -0800 (PST), >> grit in the works? Should I just flush it out.   >> Otherwise the radio works well.   >Sometimes all one need to is twiddle the control back & forth a dozen or 2 times.   Definitely t hat's the easiest and likely to make it work for a while. I just left on a trip and the radio that was supposed to play to make it sound like I was home had t he no-play problem, but twiddling the volume a bit made it good enough to last until I get home, probably, since no one will be moving it.

David Farber <farberbear.unspam@aol.com>: Feb 25 12:57PM -0800 We've had this Brother MFC-9130CW printer/scanner/fax for about 3 years. Sometimes (about twice a week) when you try to power it on, it doesn't go on. The internet is full of similar complaints about this issue. The "fix" is to unplug it for a minute and then plug it back in. This workaround always works. I'd be more interested in finding out how to permanently fix it. It worked fine for the first two years plus. Has anyone disassembled one of these and found a cure for this?   Thanks for your reply.   -- David Farber Los Osos, CA

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