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Re: DVD recorder diagnosed - Bad cap, but not bulging!
Cool video. Very good descriptions/explanations too. -
Re: DVD recorder diagnosed - Bad cap, but not bulging!
That'll help someone. Good onya having a go.Comment
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When I originally started with my DVR recorder it had 4 individual switching switching power supply’s that were sh*t so I bought a 7 amp 12 volt switching power supply and modified the output plug and put a four output power supply cable to match the input power supply cable inputs
Which worked for over 14 years until a few days ago when the cameras went dark no picture anymore well it turns out now the switching power supply has stopped working altogether now so I have to troubleshoot what has happened to this power supply more later on today what I found
This... -
Fixed a 10yo HP inkjet with a bulging cap on the digital computer power rails (1 to 5V). Unstable voltages causing these inkjets to not boot properly or crash quickly. Seems like more and more of these are showing up nearing the 10 year mark. Board design seem to look similar for many of these printers.
https://h30434.www3.hp.com/t5/Printi...t/true#M99792202-03-2025, 09:50 PM -
I have recently inherited a Panasonic DMR-EZ48V DVD/VHS combo after my dad died. I tried to record a DVD with it and it worked for about 5 mins before it suddenly stopped. Since then it just keeps making a noise like it is trying to read a disk but then gives a 'no read' error message. I have tried numerous DVD's and it is definitely the recorder that is the problem. I did find a youtube video showing that capacitors on the power board were a common problem on these and so I went ahead and replaced the capacitors but it is still doing the same thing. I now think that it could be the laser that... -
Would you consider a slightly bulging capacitor defective if it measures perfectly and it is brand-new? To be honest, they are all equally like this: vent is not totally flat but they have very low E.S.R. and VLOSS is negligible.
So, everything seems perfect apart from the vent looking a bit "strange". They are genuine capacitors, BTW.
The bad thing is that they are 400V capacitors so testing them just to check how much they last would mean using them on the primary of a power supply, which means the risk of damaging the whole circuit.
What do you... -
These cheap non brand capacitors at it again
Last night we had a power outage [ long drawn out trying three to come back up before going out completely ] and when I went to turn the DVR camera recorder back today no go 3 bad capacitors ( one capacitor no ESR reading on DVR board the other 3 capacitor on the power supply board over 40 ohm this is not a misprint ) on the external switching power supply and one capacitor on the DVR camera recorder board where the power supply that goes to the hard drive disk is
Well at least I have the cameras back on line I to try the...
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