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Sony
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Sony
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Tivo upgrades to operate with the new OzTivo EPG, support and service. Over 400 performed here so far. See: www.hillcrest.net.nz
Trusted
Sony
Trusted
Tivo upgrades to operate with the new OzTivo EPG, support and service. Over 400 performed here so far. See: www.hillcrest.net.nz
Trusted
Tivo upgrades to operate with the new OzTivo EPG, support and service. Over 400 performed here so far. See: www.hillcrest.net.nz
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Regards,
Old3eyes
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Afternoon fellow TiVoers,
Replaced the PROM chip over the weekend and thought I'd post some pics to show how I did it, in case it's of use to others.
Having checked out the price of the suggested Chip Quik product, I decided to do this a different way.
I just cut the existing ROM chip legs off, using a strong/controlled downwards pressure with a sharp craft knife.
The risk of this approach is slipping and cutting other components/tracks/yourself, plus a definite risk to the tracks/mounting points under the chip.
However, in practise, this worked surprisingly well. Overall this approach can minimise the heat put into the board too, if done quickly and efficiently.
With 3 sides cut, I could pry the chip up and away from the board:
From there I initially started removing the existing legs, by desoldering one at a time and lifting lightly with fine pliers:
After a short while I realised that I could simply push the remaining pins off directly, rather than having to involve the pliers.
The iron would melt the leg pins, and they'd stick to the iron when slid off the pads.
I used a pretty fine soldering tip, one with a flat side that could be applied straight down on the pins.
Clean regularly and tin the end slightly (crusted up whilst waiting to take this photo for you).
I use one of those copper twisty cleaner containers.
Keeping things clean is definitely your friend here, and keep the temp down to something sensible too.
From there it was plain sailing, with the board chip space cleaning up really well:
I don't think the chip can be remounted easily on it's own, as the pins wrap around and under it's body.
This would be incredibly hard/impossible to do without a hot air rework type approach, so highly recommend using the socket.
I agree with removing the centre of the socket also, as this impedes the pins from being soldered back on.
I cut this out and glued the piece back in place afterwards as a packer, to ensure the PROM would sit at the right height when inserted into the socket.
Take your time and tack two pins down on opposite sides to hold it in place, ensuring the alignment is perfect.
Then work slowly around the pins, ensuring each is soldered nicely.
Don't freak out of any cross runs, as these can fairly easily be worked out later, pulling the solder along in the direction of the pins to clear the spillover.
Then the new PROM finally gets installed, the unit reassembled and a moment of fear/relief when it starts up again properly!
Overall the unit is really really nice to work in. Remove the drive bay, via 4 screws, and you'll have a lot of room to work in.
Mine was dusty as anything, but cleaned up really well. It's a T-10 or T-15 'security' screw, but these are pretty common.
Now just waiting on the software to patch the drive.
A huge congrats and thank you to all in the community for their work on this.
Despite us needing a PVR less and less now, it's nice to not have to junk this, and I expect the new developments will likely lead to a better unit than we originally had anyway.
Hope the above is of use to some?
Jaxson.
Trusted
Sony
Trusted
Tivo upgrades to operate with the new OzTivo EPG, support and service. Over 400 performed here so far. See: www.hillcrest.net.nz
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