- APEX PF2720 MAKES WEIRD NOISE - 8 Updates
- Sony CDP101 repair - 5 Updates
- Color printers secretly printed serial number & date onto Reality Winner's PDF - 8 Updates
- Is there A New Thing That can Interfere With My WIFI ? - 2 Updates
- Motorola smartphone battery charging - 1 Update
jglconsulting310@gmail.com: Jun 15 06:20PM -0700 Can anyone help or offer some direction? My Apex TV was working fine until today. When I turn it on there is a strange whining sound and no picture. Anyone had an experience with this? Thanks, Gary |
Jeff Liebermann <jeffl@cruzio.com>: Jun 15 07:22PM -0700 On Thu, 15 Jun 2017 18:20:41 -0700 (PDT), jglconsulting310@gmail.com wrote: >Can anyone help or offer some direction? >My Apex TV was working fine until today. That's what they all say when something blows up. The next step is to blame someone or something. >When I turn it on there is a strange whining sound and >no picture. Anyone had an experience with this? Yes. My guess(tm) is a switching power supply with leaking and bulging electrolytic capacitors. The capacitor sometimes makes some hissing or screaming noises when it boils off electrolyte. The noise may also be coming from the speakers as a blown capacitor might cause the power supply to oscillate. The noise is usually followed by dead silence after the fuse blows. The Apex PF 2720 is 27" CRT (picture tube) TV first sold in 2003. That makes it around 14 years old: <https://www.amazon.com/Apex-PF2720-27-Flat-Screen-Stereo/dp/B0000CAPT1> It's highly likely that something that old has parts that have not aged very gracefully. Open it up and look around. You'll probably see something like these: <https://www.google.com/search?q=bulging+capacitors&tbm=isch> Usually, some kind of maker and model specific capacitor recap or rebuild kit is available on eBay. However, I couldn't find anything for this model TV. The labor charge for fixing such an old TV might be high enough that a replacement LCD TV might be more economical. eWaste methinks... -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Phil Allison <pallison49@gmail.com>: Jun 16 01:28AM -0700 > Can anyone help or offer some direction? > My Apex TV was working fine until today. > When I turn it on there is a strange whining sound and no picture. Anyone had an experience with this? ** So there is normal sound from the speakers ? If so, the set many just need a good clean around the picture tube and any wiring going to and from same. I have used rags moistened with denatured alcohol to get all the black soot and dust off, plus a vacuum cleaner if it is really bad. It's probably an outside chance, but what have you got to lose ? FYI: UNPLUG THE SET AND LEAVE IT FOR 10 MINUTES BEFORE DOING ANY CLEANING. ..... Phil |
Chuck <chuck@mydeja.net>: Jun 16 08:03AM -0500 On Thu, 15 Jun 2017 18:20:41 -0700 (PDT), jglconsulting310@gmail.com wrote: >When I turn it on there is a strange whining sound and no picture. Anyone had an experience with this? >Thanks, >Gary Another guess is a shorted horizontal output transistor and the whine is a switched power supply trying to drive a dead short. In any case not worth fixing. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
John-Del <ohger1s@gmail.com>: Jun 16 06:53AM -0700 On Friday, June 16, 2017 at 4:28:08 AM UTC-4, Phil Allison wrote: > ** So there is normal sound from the speakers ? > If so, the set many just need a good clean around the picture tube and any wiring going to and from same. Cleaning in and around the second anode assy won't help a no picture condition and whine, which is what OP complained about. > FYI: > UNPLUG THE SET AND LEAVE IT FOR 10 MINUTES BEFORE DOING ANY CLEANING. > ..... Phil Good advice, assuming his TV's HV transformer has an internal bleeder. If it doesn't contain an internal bleeder, the CRT may store 20KV for several days at the very least and will deliver nice jolt to whoever tries to wipe down around the second anode cup, even days later. Some TVs mute the video first before the HV is shut down, and the charge on the CRT remains very high with no bleeder. It would have been nice if OP had told us if it's a CRT, plasma, or LCD. The only thing they all have in common is that produce a picture. |
John-Del <ohger1s@gmail.com>: Jun 16 06:57AM -0700 > When I turn it on there is a strange whining sound and no picture. Anyone had an experience with this? > Thanks, > Gary Is the sun shining where you are? Knowing the weather is as about as helpful as the information that you posted. Start with model number. Absent that, whats the technology? CRT, Plasma, or LCD/LED? Whining complaints along with a change of performance are *usually* a switch mode supply under a higher than designed for load. |
John-Del <ohger1s@gmail.com>: Jun 16 07:00AM -0700 On Friday, June 16, 2017 at 9:57:32 AM UTC-4, John-Del wrote: > Is the sun shining where you are? Knowing the weather is as about as helpful as the information that you posted. > Start with model number. Absent that, whats the technology? CRT, Plasma, or LCD/LED? > Whining complaints along with a change of performance are *usually* a switch mode supply under a higher than designed for load. Oops, see the model in the title.. If you have a DMM, check the LOP/Horizontal output transistor for a Collector to Emitter short. That's the easiest check to make. Other than that, any kind of shorted device on the secondary of the smps will cause a whine from the supply. |
jglconsulting310@gmail.com: Jun 16 08:59AM -0700 > When I turn it on there is a strange whining sound and no picture. Anyone had an experience with this? > Thanks, > Gary Thanks to everyone for taking the time to respond. Jeff, The images from the link you supplied were awesome. I think it's time for me to help the economy and buy a new TV. |
"pfjw@aol.com" <pfjw@aol.com>: Jun 15 01:35PM -0700 Good Christ!! 117 (with this) posts on the subject of a festering pimple that, while a decent tech, would be long-dead were he to pull his shit face-to-face. That he does so from under a nice safe, and quite distant rock is pretty much the only reason for his continuing survival. Ah, well. Peter Wieck Melrose Park, PA |
Phil Allison <pallison49@gmail.com>: Jun 15 06:00PM -0700 thekma...@gmail.com wrote: --------------------------- > lasers for these machines, and tracking > hardware, besides what's already inside > surviving examples of the 101? ** Used examples are being offered on Ebay. The part number is KSS100A and suits several Sony models. ..... Phil |
thekmanrocks@gmail.com: Jun 16 04:47AM -0700 Phil Allison wrote: "thekma...@gmail.com wrote: --------------------------- > hardware, besides what's already inside > surviving examples of the 101? > " "** Used examples are being offered on Ebay. The part number is KSS100A and suits several Sony models. ..... Phil " ______ Thanks! And is there any chance they might work in some of Sony's 5-CD carousel players, from the early to mid-1990s? I have two such machines that refuse to read a couple of my CDs, or, if they have tracks extending all the way out to the edge, the player won't play the final 2-3 tracks. I have already tried lubricating the sled tracks, but to little avail. |
Chuck <chuck@mydeja.net>: Jun 16 08:00AM -0500 On Fri, 16 Jun 2017 04:47:59 -0700 (PDT), thekmanrocks@gmail.com wrote: >play the final 2-3 tracks. I have already >tried lubricating the sled tracks, but to >little avail. They use a totally different laser assembly. A KSS140 I believe. We were constantly replacing these and the harness that went to the laser assembly was often bad. Did not like these. The Yamahas from this time period were very reliable. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
thekmanrocks@gmail.com: Jun 16 07:47AM -0700 Chuck: The reason I liked the Sony carousels is that for several model years they had variable line output - controlled via the headphone jack volume. Something about my music sounded better when I used variable line out set about 1/2 to 3/4 of the way up, vs. full output through the fixed outs, and just turned my receiver volume up a bit higher. |
picoRNA <picoRNAspam@comcast.net>: Jun 16 04:17AM +0200 Secretly printed serial number & date outed Reality Winner's PDF http://blog.erratasec.com/2017/06/how-intercept-outed-reality-winner.html "The situation is similar to how Vice outed the location of John McAfee, by publishing JPEG photographs of him with the EXIF GPS coordinates still hidden in the file." Is your color printer secretly outing you? https://www.eff.org/pages/list-printers-which-do-or-do-not-display-tracking-dots |
nospam <nospam@nospam.invalid>: Jun 15 10:50PM -0400 In article <ohvf3o$1kk7$1@adenine.netfront.net>, picoRNA > "The situation is similar to how Vice outed the location of John McAfee, by > publishing JPEG photographs of him with the EXIF GPS coordinates still > hidden in the file." criminals are stupid. there was a bank robbery near me where after robbing the bank, the idiot waited for a bus at a bus stop near the bank. not only did he not wait very long, but he got an express ride downtown and had his photo taken for free. |
oldschool@tubes.com: Jun 15 10:13PM -0400 On Fri, 16 Jun 2017 04:17:18 +0200, picoRNA <picoRNAspam@comcast.net> wrote: >hidden in the file." >Is your color printer secretly outing you? >https://www.eff.org/pages/list-printers-which-do-or-do-not-display-tracking-dots Thats about as bad as some guy who claimed his gun would shoot people on it's own. Of course the gun only shot people it did not like. Thats pretty amazing, especially since the gun knew who it did and did not like..... |
Tony Cooper <tonycooper214@gmail.com>: Jun 16 12:11AM -0400 On Thu, 15 Jun 2017 22:50:47 -0400, nospam <nospam@nospam.invalid> wrote: >idiot waited for a bus at a bus stop near the bank. not only did he not >wait very long, but he got an express ride downtown and had his photo >taken for free. http://denver.cbslocal.com/2017/05/12/wells-fargo-bank-robbery-arvada/ -- Tony Cooper - Orlando, Florida |
nospam <nospam@nospam.invalid>: Jun 16 12:17AM -0400 In article <fhm6kcp1te2c5p5c4stkrkvhj7v5healov@4ax.com>, Tony Cooper > >wait very long, but he got an express ride downtown and had his photo > >taken for free. > http://denver.cbslocal.com/2017/05/12/wells-fargo-bank-robbery-arvada/ that isn't the one i was talking about. |
picoRNA <picoRNAspam@comcast.net>: Jun 16 07:14AM +0200 > criminals are stupid. In both the McAfee & Reality Winner case, it was the journalist who as you sayed "are stupid" since "all major manufacturers of color laser printers entered a secret agreement with governments to ensure that the output of those printers is forensically traceable." https://www.eff.org/issues/printers |
nospam <nospam@nospam.invalid>: Jun 16 01:18AM -0400 In article <ohvpgb$2obk$2@adenine.netfront.net>, picoRNA > sayed "are stupid" since "all major manufacturers of color laser printers > entered a secret agreement with governments to ensure that the output of > those printers is forensically traceable." they were both stupid, particularly reality winner, who should change her name to reality loser. |
Andy Burns <usenet@andyburns.uk>: Jun 16 08:24AM +0100 picoRNA wrote: > Secretly printed serial number & date Hardly news, Xerox/PCWorld/EFF revealed the yellow dots 13 years ago |
Jon Elson <jmelson@wustl.edu>: Jun 15 02:20PM -0500 > interference between me and the central office. DSL used to go out in the > evening when the streets lights all fired up. > m If you have several laptops (or even a printer on the WiFi) you can ping between devices to check if the WiFi is communicating, without having to have the DSL working. So, you can identify which part of the network is out. Jon |
"pfjw@aol.com" <pfjw@aol.com>: Jun 15 12:50PM -0700 OK - this horse is dead, flayed, flensed, tanned, rendered, dried, peppered, salted and jerked. For the typical user, the problems described herein would have been solved in less time than the OP took to make the initial post. The less typical user would have taken at least some of the advice given in the first half-dozen (non-snarky) responses and solved the problem within 24 hours. That it has gone on this long indicates that the OP is neither typical, less typical nor even trainable, but a bottomless pit of need without the capacity to understand the actual situation. Ah, well. Peter Wieck Melrose Park, PA |
Jeff Liebermann <jeffl@cruzio.com>: Jun 15 09:50AM -0700 On Thu, 15 Jun 2017 11:43:36 +0100, Mike Coon >ejection. >Any comments? >Mike. 1. Find a USB ammeter and measure the current your phone is drawing. Something like this: <http://www.ebay.com/itm/222307766211> If you see any current being drawn after you battery is officially done charging, then the Motorola charging circuitry in the phone is NOT working according to your quoted description. I have a 1st generation Motorola G3 phone that I can try it later tonite. 2. LiPo batteries tend to bulge when charged. There are numerous examples of the problem: <https://www.google.com/search?q=bulging+cell+phone+battery&tbm=isch> Here's a rather sane discussion on the causes of bulging batteries: <https://www.quora.com/What-would-cause-a-phone-battery-to-bulge-in-the-middle> Basically, what's happening is the electrolyte is breaking down into gasses inside the battery. I don't know what might happen if you take a needle and punch a hole in the battery, but I wouldn't recommend doing that. In any case, replace the battery. 3. When something like this happens, there is always a tendency to search for a suitable culprit. Is it the charger circuit in the phone? Is it a faulty battery? Is it something that you're doing? Do you discharge the battery until it's totally discharged, which incidentally is a great way to kill a LiIon/LiPo cell? It the charging system sensitive to temperature, humidity, usage, or phase of the moon? Maybe the battery has hit its limit of charge cycles? Perhaps you might have a counterfeit battery? Or is it some combination of these factors? I can't tell without more information. -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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