| Electronics > Repair |
| Agilent 53132A Counter Repair (FIXED and Upgraded) |
| << < (3/29) > >> |
| TheSteve:
The counter does look to have newer firmware then I have seen posted anywhere - 4806. Not quite as easy to dump and post as it was with older units that had four socketed PLCC devices. |
| Vgkid:
Could you either substitute a different fan to run off of another rail(non standby rail). Or, use a relay to turn on the fan(off the 5v rail, or others) and keep it wired the same way. The 2nd one is how that is implemented in the 5335. |
| HighVoltage:
Interesting comments everyone - thank you, I will look in to the fan issue, when I put it back together. I probably have to get a new fan anyways. Right now is cleanup time. I took the instrument completely apart now and started with the display and front cover. All cleaned up now, looks like new - kind of. Next is to clean the PCB in alcohol. |
| EPTech:
Hi there, If the fan has died somewhere along the way, you should check the condition of the input cap but most certainly the low ESR output caps on the SMPS. I would just replace them by default, that may already fix the problem. I am not affiliated to any brand but I would recommend the FC, FM or FK series from Panasonic. Also check the high ohm resistors. Does the supply work without load attached? |
| HighVoltage:
--- Quote from: EPTech on January 15, 2016, 01:36:58 pm ---Hi there, If the fan has died somewhere along the way, you should check the condition of the input cap but most certainly the low ESR output caps on the SMPS. I would just replace them by default, that may already fix the problem. I am not affiliated to any brand but I would recommend the FC, FM or FK series from Panasonic. Also check the high ohm resistors. Does the supply work without load attached? --- End quote --- Thanks EPTech The PSU is sitting in alcohol right now since it was so full of dirt, some components were not visible. I wanted to clean it, before I would test without load. The corrosion on the frame is removed with a rotating steel brush but it was already deep in to the metal, even after cleaning it looked horrible. So, I decided to cover this area of the frame with some paint. And it seems to turned out alright. |
| Navigation |
| Message Index |
| Next page |
| Previous page |