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Search: Posts Made By: Y. Signal
Forum: Troubleshooting Power Supplies and Power Supply Design 11-21-2018, 02:42 AM
Replies: 3
Views: 186
Posted By Y. Signal
Re: Looking for a reliable +5V and +12V PSU with low ripple

Hi, I want to reduce ripple and noise to prolong the life of the arcade boards since they are very old. With some boards that are not so well built in some analog TVs I have observed some wavy noise...
Forum: Troubleshooting Power Supplies and Power Supply Design 11-20-2018, 05:13 AM
Replies: 3
Views: 186
Posted By Y. Signal
Question Looking for a reliable +5V and +12V PSU with low ripple

Hello. I'd like to get suggestions for a reliable PSU with good caps and low ripple with +5V (adjustable), +12V and optionally -5V. I don't really need the -5V but it would be nice to have this...
Forum: Troubleshooting Game Consoles & Other Weird Devices 11-11-2018, 01:48 PM
Replies: 3
Views: 182
Posted By Y. Signal
Re: Capcom CPS1 with Unicon and Tk capacitors

Thanks. I was looking to get a working CPS1 board and this is good to hear since I don't plan to use it enclosed. Yeah, I heard about that Z80 issue and I already got some Z80A replacements :)

I...
Forum: Troubleshooting Game Consoles & Other Weird Devices 11-10-2018, 06:46 PM
Replies: 3
Views: 182
Posted By Y. Signal
Question Capcom CPS1 with Unicon and Tk capacitors

Hello. I have a broken Capcom CPS1 A board that uses Unicon and Tk capacitors. These electrolytics are only in the audio section of the circuit, the rest of the board has ceramic capacitors and...
Forum: Troubleshooting Power Supplies and Power Supply Design 11-04-2018, 11:20 AM
Replies: 3,000
Views: 727,203
Posted By Y. Signal
Re: Power supply build quality pictorial. part 2

Mean Well RT-125A

All the capacitors I can see are Rubycon and Chemi-con, except one small Jamicon near the outputs.
Forum: Troubleshooting Audio Equipment 10-13-2018, 09:29 AM
Replies: 2
Views: 130
Posted By Y. Signal
Forum: Troubleshooting Audio Equipment 10-13-2018, 08:15 AM
Replies: 2
Views: 130
Posted By Y. Signal
Question Sony SRS-A205 and non-polarized electrolytic capacitors on audio input

Hello. I have this set of speakers that I'm recapping because they had some noise. After replacing most of the electrolytic capacitors the problem dissapeared, but I've continued working for a full...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-29-2018, 03:16 AM
Replies: 0
Views: 100
Posted By Y. Signal
Question Replacements for Nichicon PR and PL in PSU

Hello, I have read the recommendation to use PS and PM respectively, but they are hardly available from here at decent prices.

I've recapped this PSU with the following capacitors and I'd like to...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-28-2018, 08:14 AM
Replies: 4
Views: 267
Posted By Y. Signal
Re: PSU with KME capacitors, recap or not?

Thanks momaka. I'll leave them meanwhile the unit works fine, anyway it's nice to know what would be a suitable replacement.

I think so, NHG are GP 105șC too:...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-28-2018, 06:25 AM
Replies: 4
Views: 267
Posted By Y. Signal
Re: PSU with KME capacitors, recap or not?

Thanks, nice to know that KME are good. This PSU gets a bit hot since it's in a plastic case with not much ventilating holes, anyway I think I'll leave it with these capacitors meanwhile it works...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-27-2018, 06:14 PM
Replies: 4
Views: 267
Posted By Y. Signal
Question PSU with KME capacitors, recap or not?

Hello, I have this PSU from 1994 using Chemi-con KME and Chemi-con W (custom?) capacitors and I'd like to know if it's better to recap or leave it as is. These are the capacitors used in this power...
Forum: General Capacitor Questions & Issues 09-27-2018, 11:37 AM
Replies: 2
Views: 259
Posted By Y. Signal
Re: Are these capacitors General Purpose Chemi-con?

Thanks! It's a Japanese Sega Saturn (HST-3210) "VA SG" board. Good stuff!

I'm now recapping a different Saturn board that, even working fine, had leaking SMD electrolytics. Some pads were damaged...
Forum: General Capacitor Questions & Issues 09-27-2018, 07:08 AM
Replies: 2
Views: 259
Posted By Y. Signal
Question Are these capacitors General Purpose Chemi-con?

Hello, I'd like to know if all these capacitors are GP Nippon Chemi-con in this board from 1995.

I've found "SRG" in some of the black ones, this is labeled as "low profile" series, does this...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-25-2018, 04:28 PM
Replies: 5
Views: 371
Posted By Y. Signal
Re: Replacing Nichicon PJ and PF in a PSU

Thank you for the detailed replies, it's much appreciated. I'm still learning the basics and this helps me a lot to make the correct decisions.

I've just recapped another PSU, and the only...
Forum: General Capacitor Questions & Issues 09-25-2018, 03:10 AM
Replies: 5
Views: 389
Posted By Y. Signal
Re: Looking for information about Panasonic FAU (or F AU) capacitor

Thank you, I take good note. I thought it was a good idea to replace all the capacitors >25 years old even if they are very good, but I'll leave my other PSUs if the electrolytics used are not...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-23-2018, 01:21 PM
Replies: 5
Views: 371
Posted By Y. Signal
Question Replacing Nichicon PJ and PF in a PSU

Hello, I want to recap the PSU in the photo so I'm looking for adequate replacements and I have some questions. This is the list of electrolitic capacitors (rated ripple current in mArms at 85șC in...
Forum: General Capacitor Questions & Issues 09-21-2018, 02:23 PM
Replies: 5
Views: 389
Posted By Y. Signal
Forum: General Capacitor Questions & Issues 09-21-2018, 10:32 AM
Replies: 5
Views: 389
Posted By Y. Signal
Question Looking for information about Panasonic FAU (or F AU) capacitor

Hello, I've found a dark blue / silver Panasonic 1800uF/6.3V capacitor labeled as "Panasonic 105șC FAU", do you have information about this series? suitable replacement suggestions are welcomed. It...
Forum: Troubleshooting TVs and Video Sources 08-09-2018, 08:46 AM
Replies: 5
Views: 190
Posted By Y. Signal
Re: Thomson 32HB3103 sound problem

Thanks. I'll let the TV run for more time with a fan to be sure it's a heat problem.
Forum: Troubleshooting TVs and Video Sources 08-09-2018, 08:22 AM
Replies: 5
Views: 190
Posted By Y. Signal
Re: Thomson 32HB3103 sound problem

I've let the TV turned on for a while with the case opened and the sound is working nice, so it must be a heat issue.

I've carefully touched the TPA3110D2 and it's not very hot. However, the...
Forum: Troubleshooting TVs and Video Sources 08-09-2018, 06:10 AM
Replies: 5
Views: 190
Posted By Y. Signal
Re: Thomson 32HB3103 sound problem

I'm going to look for that spray and try. Will report back.

You mean the 28 pins SMD IC that appears at the right black capacitor and below 4 inductors marked with "220", isn't it? It's marked as...
Forum: Troubleshooting TVs and Video Sources 08-09-2018, 04:17 AM
Replies: 5
Views: 190
Posted By Y. Signal
Question Thomson 32HB3103 sound problem

Hello. This TV from grandma has a problem and I'd be very happy to repair it.

When I turn the TV on, after 20 minutes or so the sound stops. When I turn it off and wait some minutes and then I...
Forum: General Capacitor Questions & Issues 07-17-2018, 04:13 PM
Replies: 10
Views: 508
Posted By Y. Signal
Re: Comparing ripple current on capacitors with different temperature rating

Thank you all for the information, I'm trying to learn how to properly choose the best caps.

Some time ago I recapped two Sega Mega Drive consoles with Panasonic FR capacitors and after 1 hour of...
Forum: General Capacitor Questions & Issues 07-17-2018, 07:46 AM
Replies: 10
Views: 508
Posted By Y. Signal
Re: Comparing ripple current on capacitors with different temperature rating

Maybe although ESR is not affected by ambient temperature it can affect the ripple current that the capacitor can manage?

I'm looking for 105 C general purpose not low-esr capacitors that are...
Forum: General Capacitor Questions & Issues 07-17-2018, 07:08 AM
Replies: 10
Views: 508
Posted By Y. Signal
Re: Comparing ripple current on capacitors with different temperature rating

Although Rubycon YXF capacitors appear as GP in the Rubycon catalog they are in the low ESR category. I'm looking for standard GP caps.

Are you sure of that? in the Chemi-con SME datasheet there...
Showing results 1 to 25 of 49

 
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