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Bill Sudbrink <bill@umsa7.ums.edu>: Aug 28 05:56PM >do with a JW-3203, JW-3204 or JW-3205. If you have one or more to >sell, please email:   >8bill8 at umsa7 dot umd dot edu   I forgot to add, remove the "eight" digits and translate "dot"s and "at"s.

Bill Sudbrink <bill@umsa7.ums.edu>: Aug 28 05:53PM Hi,   I need a few BUD Industries JW-3202 series enclosures. I could make do with a JW-3203, JW-3204 or JW-3205. If you have one or more to sell, please email:   8bill8 at umsa7 dot umd dot edu   By the way, what is with these web sites that offer available stock of parts and components (there are a couple of sites that offer these enclosures) but ignore requests for quotes? Are they just not interested unless you want to buy their whole inventory? Are they some sort of scam?   Thanks, Bill Sudbrink

Allodoxaphobia <knock_yourself_out@example.net>: Aug 28 07:12PM On Fri, 28 Aug 2015 17:56:51 +0000 (UTC), Bill Sudbrink wrote:   >>8bill8 at umsa7 dot umd dot edu   > I forgot to add, remove the "eight" digits and > translate "dot"s and "at"s.   Wll, yah! That was obvious from the true rendereing of your From: header in the posting.

amdx <nojunk@knology.net>: Aug 29 10:11AM -0500 On 8/28/2015 2:12 PM, Allodoxaphobia wrote: >> translate "dot"s and "at"s.   > Well, yah! That was obvious from the true rendering > of your From: header in the posting.   Not a true rendering note, umd vs ums.   Mikek   --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com

N_Cook <diverse@tcp.co.uk>: Aug 29 08:24AM +0100 Unused for a year and then switching on , nasty magnetisation type noise and "B" 1.2 amp thermal breaker trips out. This disengages mains Tx secondary middle from ground , via a triac system crowbar fashion. Selecting DDT disabled, then amp runs ok. I tried running on a variac at 60% mains, with DDT enabled , to see if it would run and then probe difference between A and B channels. Ran ok,so turned up variac progressively, but now even at 100% , amp runs normally. So presumably a cap somewhere got reformed, how to track down which one? Other than ESR meter on caps/replacing all,probing for A/B differences, anyone aware of where a failing cap or more generally zener , opamp or whatever may lie, in the DDT processing section?

Phil Allison <pallison49@gmail.com>: Aug 29 02:33AM -0700 N_Cook wrote: > and "B" 1.2 amp thermal breaker trips out. > This disengages mains Tx secondary middle from ground , via a triac > system crowbar fashion.     ** Nonsense - the triacs are used in a speaker protection crow bar.   The power amps use PSU centre taps as speaker outputs - like some QSC amps.     > Other than ESR meter on caps/replacing all,probing for A/B differences, > anyone aware of where a failing cap or more generally zener , opamp or > whatever may lie, in the DDT processing section?   ** What happened is that ch B produced a large DC offset when switched on, probably due to bad contacts on the many push fit connectors OR maybe a leaky coupling electro somewhere - THEN the triac crow bar activated and shorted the output.     ... Phil

Michael Black <et472@ncf.ca>: Aug 28 01:17PM -0400

"dusty" <dusty@dot.com>: Aug 28 01:07PM -0500 > There are even DTV converters that have HDMI outputs, they even allow > recording if you attach a USB flash drive to them. > Michael   That's a great suggestion. Thank you

Jeff Liebermann <jeffl@cruzio.com>: Aug 28 01:51PM -0700 >32 inch Insignia flat screen TV.   I guess it doesn't have a model number. Could you be a little less vague?   >My big feet tripped over the antenna cable, ripping out >the input where the cable screws on.   Next time, use a push on F connector or adapter. It's a common problem. Power cords and phono jacks are protected by easily disconnecting. <https://www.google.com/search?q=push+on+f+connector+adapter&tbm=isch>   >I attached a link to some pictures. >https://www.dropbox.com/sh/610z20tqny4wocy/AABqKX-ycqKAAsRqYXoykuVEa?dl=0 >Thanks for any information.   I think anyone that knows which end of the soldering iron to grap can probably put Humpty Dumpty back together again. It's mostly a matter of your carrying the TV to the repair person or shop, removing the shield can, doing whatever it takes to resolder the connector, putting it back together, and check for other common problems (i.e. bulging caps). I would guess about 30-45 mins work and testing, assuming you don't need any other repairs. All your photos are out of focus and too far away, so I can't be more specific. Looks like the center pad might have ripped off, so there will be some PCB trace work involved. For cost, just ask for how much shop time costs. -- 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

"dusty" <dusty@dot.com>: Aug 28 06:00PM -0500 > >32 inch Insignia flat screen TV. > I guess it doesn't have a model number. Could you be a little less > vague?   model # NS-L32Q-10A   > too far away, so I can't be more specific. Looks like the center pad > might have ripped off, so there will be some PCB trace work involved. > For cost, just ask for how much shop time costs.   Inside the shiny square box, where the connector is ripped out, the small circuit board is broken in several places. Sorry the pictures weren't better. I'll call around and see if someone can fix it. I wouldn't be surprised if I have to drive 100 miles to find someone who can fix it.   Those slip on connectors are a good idea.     -- Usenet Reader for Android http://android.newsgroupstats.hk

Jeff Liebermann <jeffl@cruzio.com>: Aug 28 04:39PM -0700 >> I guess it doesn't have a model number. Could you be a little less >> vague?   >model # NS-L32Q-10A   You can buy the tuner can and just drop (or solder) it in place. Search eBay and other sources for the number on the tuner.   Or, just replace the entire board: <http://www.ebay.com/itm/like/371414946277> <http://www.ebay.com/itm/like/281659047280> or others for more money.   >Inside the shiny square box, where the connector is ripped out, >the small circuit board is broken in several places. Sorry the >pictures weren't better.   If the board is cracked, it might be possible to epoxy it back together, and solder the traces back together. However, if the traces and cracks extend under components, there may be othe damage. Since this might easily be a waste of time, it's probably best to replace the tuner can, or the entire board.   >I'll call around and see if someone can >fix it. I wouldn't be surprised if I have to drive 100 miles to find >someone who can fix it.   Have the replacement main board shipped to you via UPS, USPS, Fedex, etc. Much easier than driving 100 miles. I don't think there will be any soldering if your replace the entire main board. Just connector juggling. Be sure to take a photo of what it looks like before you start as mixing up connectors, shields, brackets, and hardware is not a good idea.   >Those slip on connectors are a good idea.   Yep. I wish they made something similar for RJ45 (ethernet) connectors. Good luck with the repair.   -- 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

"dusty" <dusty@dot.com>: Aug 29 02:05AM -0500 > 150 Felker St #D http://www.LearnByDestroying.com > Santa Cruz CA 95060 http://802.11junk.com > Skype: JeffLiebermann AE6KS 831-336-2558   wow, eBay has everything. I'll order a board after I check the exact part number I need. I ordered some slip connectors. You've helped me a lot, I appreciate it very much.   Thank you Dusty

Cydrome Leader <presence@MUNGEpanix.com>: Aug 28 06:51PM > ** There are certainly many SMPSs with start up modes that create brutal current surges for the switching mosfet or mosfets. The electros on the secondary side of the switching tranny present a near short until charged and there has to be some effective means built into the circuitry to limit peak currents until this happens.   > Using a variac, it is sometimes possible to find a setting where the PSU attempts to start, surges repeatedly, but cannot successfully run - likely because the secondary voltage does not rise enough for the control loop to stabilise.   > Reckon it is wise to avoid lingering at such a setting.   Television sets (with CRT) really don't like brownouts either.

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