• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

Repairing a DataVideo TBC-1000 power board

leonroy

Member
Forum Donor
Joined
Feb 15, 2018
Messages
80
Likes
96
Location
London, UK
Hope this isn't too off topic....I have a DataVideo TBC-1000 time base corrector - it is designed to stabilize video from analogue formats for video capture. It's been sitting idle for years. I inspected the internals before powering it on again and noticed the caps on the 'power board' are swollen and one of them leaking from the bottom:
zf92dBh.jpg


mkFbGij.jpg


LEO_5380.jpg


LEO_5381.jpg


The specs of the two swollen caps are:
  • Size: 10mm D, 16mm H, 5mm LP
  • Spec: 1000uf 25v 105C
None of the other caps on the unit look swollen, just the two larger ones on the power board.

The datasheet for the step-down converter on the circuit board states: Capacitors with low impedance for high-frequency ripple current must be used.

1595688733673.png


Would the Nichicon UPA1E102MPD, Panasonic EEUFK1E102L, or Panasonic EEUFP1E102 be suitable?

Is it worth replacing the small capacitor as well while I'm at it?
 

JeffS7444

Major Contributor
Forum Donor
Joined
Jul 21, 2019
Messages
2,347
Likes
3,507
The third one looks good, but I think this one might look even better:
https://www.digikey.com/product-det...nic-components/EEU-FR1E102L/P14425-ND/2433559
Ripple current rating is a bit lower, but rated life @ 105 degrees is 10000 hours versus 4000 hours for your part, and impedance @ 100 kHz is rated at 0.018 ohms. If it were mine, I'd probably replace the smaller capacitor while I was at it because added cost is minimal, and I hate replacing capacitors.
 
Top Bottom