Having gone through the bad capacitor drill last weekend with multiple 722k receivers, I thought I'd pass this information along in the event that it can help someone else.
If you're having problems with your receiver locking up and, like me, own your hardware and prefer to repair it instead of having Dish swap it out for a (refurbished) unit ... this may be of interest.
It looks like the 722k is made in various countries. The three I looked at came from China, India, and Mexico. There's also a lot of variance between the parts that are used. The India receiver had (6) Teapos on board, the Mexico receiver had (4) Teapos, whereas the China receiver had none ... only high quality Nichicons where the Teapos would normally be found. I couldn't nail down a date of manufacture for these three units, but suspect that the China receiver was the newest of the bunch ... and perhaps Dish and/or it's manufacturer has finally wised up in regards to using the Teapos.
India Receiver:
A few years old, this unit was starting to lock up intermittently. We had placed a USB powered laptop cooler underneath, so that probably helped prolong things a bit. On this one all (4) of the 1200uF Teapos were bad ... C194, C202, C211, and C332. Replaced all four along with the smaller 820uF Teapos (C89 and C191).
Mexico Receiver:
This receiver was only in use for six months, and started locking up intermittently. Upon inspection (3) of the 1200uF Teapos were bad ... C194, C202, and C332. Surprisingly C211 looked pretty good. Replaced all four. The smaller 820uF capacitors (C89 and C191) were a different brand ... Jameco maybe? ... so I left them alone.
China Receiver:
This receiver was used for a few years, and never had a problem. Upon inspection there were no Teapos anywhere on the board. Closed it back up and called it a day.
So in summary ... you'll want to replace these:
With these...
I think the Digi-Key part numbers are P12341-ND and P12352-ND for the Panasonics listed above. You could go with Nichicons in the alternative ... I've just gotten in the habit of using Panasonics lately.
While this is specific to the 722k, you may find the above to be useful when dealing with other Dish receivers. I hear the 922 series has bad capacitor issues as well.
John
If you're having problems with your receiver locking up and, like me, own your hardware and prefer to repair it instead of having Dish swap it out for a (refurbished) unit ... this may be of interest.
It looks like the 722k is made in various countries. The three I looked at came from China, India, and Mexico. There's also a lot of variance between the parts that are used. The India receiver had (6) Teapos on board, the Mexico receiver had (4) Teapos, whereas the China receiver had none ... only high quality Nichicons where the Teapos would normally be found. I couldn't nail down a date of manufacture for these three units, but suspect that the China receiver was the newest of the bunch ... and perhaps Dish and/or it's manufacturer has finally wised up in regards to using the Teapos.
India Receiver:
A few years old, this unit was starting to lock up intermittently. We had placed a USB powered laptop cooler underneath, so that probably helped prolong things a bit. On this one all (4) of the 1200uF Teapos were bad ... C194, C202, C211, and C332. Replaced all four along with the smaller 820uF Teapos (C89 and C191).
Mexico Receiver:
This receiver was only in use for six months, and started locking up intermittently. Upon inspection (3) of the 1200uF Teapos were bad ... C194, C202, and C332. Surprisingly C211 looked pretty good. Replaced all four. The smaller 820uF capacitors (C89 and C191) were a different brand ... Jameco maybe? ... so I left them alone.
China Receiver:
This receiver was used for a few years, and never had a problem. Upon inspection there were no Teapos anywhere on the board. Closed it back up and called it a day.
So in summary ... you'll want to replace these:
| C194 | Teapo SJ | 1200uF | 6.3v |
| C202 | Teapo SJ | 1200uF | 6.3v |
| C211 | Teapo SJ | 1200uF | 6.3v |
| C332 | Teapo SJ | 1200uF | 6.3v |
| C89 | Teapo SY | 820uF | 6.3v |
| C191 | Teapo SY | 820uF | 6.3v |
With these...
| C194 | Panasonic FM EEU-FM0J122 | 1200uF | 6.3v |
| C202 | Panasonic FM EEU-FM0J122 | 1200uF | 6.3v |
| C211 | Panasonic FM EEU-FM0J122 | 1200uF | 6.3v |
| C332 | Panasonic FM EEU-FM0J122 | 1200uF | 6.3v |
| C89 | Panasonic FM EEU-FM0J821L | 820uF | 6.3v |
| C191 | Panasonic FM EEU-FM0J821L | 820uF | 6.3v |
I think the Digi-Key part numbers are P12341-ND and P12352-ND for the Panasonics listed above. You could go with Nichicons in the alternative ... I've just gotten in the habit of using Panasonics lately.
While this is specific to the 722k, you may find the above to be useful when dealing with other Dish receivers. I hear the 922 series has bad capacitor issues as well.
John
