- Kenwood DVR-5070 - 2 Updates
- Toyota wires are thinner - 6 Updates
| whit3rd <whit3rd@gmail.com>: May 07 03:18PM -0700 My favorite stereo is a DVD recorder that... doesn't work with DVDs anymore, won't even open the tray. But, the stereo parts are wonderful, so it does all my TV sound. A few days ago, it developed a buzz, which didn't affect any of the digital (like blue-ray) sound inputs, only the analog ones. Sounded like 120 Hz, so I checked the regulators for that bunch of op amps, and sure enough, a capacitor had bulged... an hour to disassemble, five minutes to replace the thing, and now it works fine again (except for the DVR parts)... But, the capacitors I replaced were the OUTPUT filters on 7815/7915 regulators (hey, they're identical, and one failed; better do both while I'm here, or it's another couple of hours to get to them ever again). How often do regulator output capacitors fail, and how likely is it to generate an audible buzz when they do? I'd have thought the regulator would reject 120 Hz and its harmonics pretty well even without those filters. The removed part that failed tests as open, not shorted. |
| legg <legg@nospam.magma.ca>: May 08 10:32AM -0400 On Fri, 7 May 2021 15:18:01 -0700 (PDT), whit3rd <whit3rd@gmail.com> wrote: >audible buzz when they do? I'd have thought the regulator >would reject 120 Hz and its harmonics pretty well even without those >filters. The removed part that failed tests as open, not shorted. I'd check other caps in the chain, before the regulator. Most common age-related failure is high z with no physical signs - just high ripple voltage, where there shouldn't be any. If the input cap was high z, ripple would break through as the voltage dips below minimum reg values. RL |
| Tekkie© <Tekkie@comcast.net>: May 07 03:47PM -0400 On Thu, 6 May 2021 06:15:12 +0100, Andy Burns posted for all of us to digest... > grade of PVC so that a greater %age of the overall volume of the wire is > copper rather than plastic. Probably reduced copper too due to lower > current requirements, as others have mentioned. The insulation is also soy based which ground rats, mice, etc find especially tasty. -- Tekkie |
| Tekkie© <Tekkie@comcast.net>: May 07 03:55PM -0400 On Wed, 5 May 2021 21:55:50 -0600, rbowman posted for all of us to digest... > do it some other day if I really wanted to hook up the trailer. > That model is rated for towing in the US so a Y connector wasn't > available. Oddly in the Canadian manual it is rated for 500 lb max. You should go to the U Haul guy. He will put a hitch on a non-existent bumper and crimp some thingamajigs to any wires available, stereo, lane detection, backup lights, what ever they find and you are good to go >>>>> 8-( -- Tekkie |
| Aoli <Aoli@Aoli.com>: May 07 01:55PM -0700 Copper is expensive and better insulation allows for better bundle heat protection. micky wrote: |
| rbowman <bowman@montana.com>: May 07 07:38PM -0600 On 05/07/2021 01:55 PM, Tekkie� wrote: > You should go to the U Haul guy. He will put a hitch on a non-existent bumper > and crimp some thingamajigs to any wires available, stereo, lane detection, > backup lights, what ever they find and you are good to go >>>>> 8-( That would be scary. https://www.youtube.com/watch?v=nLE25mNXQDM Not my video, but my Yaris was the same year, model, and color. I traded it in last year and never did use the hitch. I've got a little flatbed trailer but didn't need to haul anything. I was going to accessorize it: https://bullsballs.com/ The red ones, of course. |
| Peeler <trolltrap@valid.invalid>: May 08 10:26AM +0200 On Fri, 7 May 2021 19:38:06 -0600, lowbrowwoman, the endlessly driveling, troll-feeding, senile idiot, blabbered again: > That would be scary. I admit, your endless gossiping scares me, lowbrowwoman! <g> |
| Xeno <xenolith@optusnet.com.au>: May 08 11:33PM +1000 On 6/5/21 3:10 am, micky wrote: > money and had to economize any way it could. Thinner, cheaper wires > were one way, and now, even though they are making plenty money, they > see no reason to change. 3) lower current requirements of many of the devices on modern cars. -- Xeno Nothing astonishes Noddy so much as common sense and plain dealing. (with apologies to Ralph Waldo Emerson) |
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