in their consumer products?
does anyone know?
thanks!
does anyone know?
thanks!
-
-
Re: when did panasonic started using SMD electrolytic capacitors?
Back in the late 80's, in VCRs and camcorders.
The ones on these S-VHS boards always went bad, and often leaked/corroded the "module" they were soldered to.
http://www.geocities.co.jp/HeartLand...epair-003.html
The HiFi "G" decks also had SM electros on the hifi riser board/module.
All G decks had two in a shield can that contained the head amps, as well as on a module on the main PCB."pokemon go... to hell!"
EOL it...
Originally posted by shango066Originally posted by smashstuff30guilty,guilty,guilty,guilty!
guilty of being cheap-made!
-
Re: when did panasonic started using SMD electrolytic capacitors?
OK i guess i should explain why i asked. I just bought used panasonic s-VHS NV-HS1000 VCR that is in cosmetically so-so condition, but virtually brand new inside. I can find no SMD electrolytic caps and so far i looked in power supply, preamp, mainboard and TBC board. i did not look inside the YC and sub boards (hidden and covered). that particular VCR was made in 1996 for UK market. on the other hand, the more recent popular panasonic's AG-1980 (USA market) is full of defective SMD caps. both of them are K-mechanism.Last edited by jack black; 08-26-2015, 04:10 PM.Comment
-
I did not have any 27uf @ 50 volt capacitors but one nice thing is that it has enough room for two capacitors in parallel a 22uf and a 4.7uf @ 50 volts 22 plus 4.7 equals 26.7uf which so very close to 27uf I will show some pictures of it sometime tomorrow
This is one of the shit est boards I seen in a very long time and it was the daughter board the traces just lifting off the board I had to use the capacitor leads to repair the the traces and the main board is not any better because I had to repair several traces for the daughter board to the main board
After all of... -
Dear reader
I am performing a repair on a Sony ICF-SW55, which includes recapping (some) of the SMD capacitors on the mainboard. I am looking for verification of their values. At the moment, I'm 95% sure I've got the right values, but it is hard to find some official, credible or multiple independant sources on this.
At the moment, I have selected replacements based on the following list of values:
3 x 470uF 10VDC
3 x 4.7uF 35VDC
4 x 47uF 50VDC
8 x 22uF 6.3 VDC
1 x 220uF 6.3VDC
5 x 100uF 6.3VDC
Which... -
I've just been repairing some (very) old speakers with a loud hum that occurred as soon as you powered them on regardless if any actual audio is played through them. I work in a School so it's 99% likey that the Teachers have hardly ever turned the power off on them for well over 10+ years.
As you can see the top large capacitor on the right has a bulge on the top so defincately needs replacing. As the one next to it is exactly the same capacity and voltage I planned to replace them both.
What is your advice/opinion on whether or not on old(er)... -
So as most of us know, old unused electrolytic capacitors are unrealiable due drying out and breakdown of the oxide layer.
I have a few questions regarding these issues.
1. Does using an electrolytic cap stop it from drying out or is it natural process that happens regardless?
2. With the breakdown of the oxide layer the ESR will increase as well as DC leakage. Say the cap has remained unused on a motherboard, psu or games console for many years, if the cap does not physically pop when power is applied what other damage could occur to the system if it was... -
Hello! yes I know there is already lots of information about this issue. I have a Panasonic TC-P55ST50 that originally displayed an 8-blink error code. Following the troubleshooting flowchart, I ended up replacing the SS board. However, even after replacing it, the issue persists. The TV turns on and stays on without displaying an image, and continuity is confirmed on all connectors. What am I missing here🤔?
Ok Im a mechanical engineer ...but I thought I was able to follow a rather simple flowchart for electric troubleshooting 😂.
TV Model: Panasonic TC-P55ST50
...11-20-2024, 08:52 PM
Comment