Originally Posted by scottndsky
I just wanted to add that I fixed my power supply with the following nine capacitors from Digikey:
QTY=5,P14382-ND,CAP ALUM 2200UF 10V 20% RADIAL,0.94000,$4.70
QTY=1,P13119-ND,CAP ALUM 1000UF 16V 20% RADIAL,0.67000,$0.67
QTY=2,P14378-ND,CAP ALUM 1000UF 10V 20% RADIAL,0.61000,$1.22
QTY=1,P14394-ND,CAP ALUM 470UF 16V 20% RADIAL,0.49000,$0.49
Grand Total = $7.08
I was a little puzzled afterward because the power supply continued the little clicking noise after I powered it on without the motherboard (load) connected. However, once I installed the power supply and connected the motherboard everything power up just fine and the clicking noise went away entirely.
I'm quite please with this inexpensive fix! Thanks to everyone on the board who contributed to this.
Yeah, it doesn't get stated very often, but the TiVo power supplies require a load. They -could- even sustain damage if not under the minimal load requirements. This is highly unlikely, but still possible...
I even run into an occasional issue with computer power supplies having erratic voltages on some outputs, due to the minimum load not being met on one or more of the other outputs. A few years ago, most computer power supplies started including the minimum load (inside the manual/literature). The old-school (over 20 years ago) way of dealing with this was them putting huge ceramic resistors inside, thus making sure the minimums were there, and powering it up without a load wouldn't cause instant self-destruction. It's not a very "green" way of doing things, though.
Good to hear another DIY success story!