Which adapters? The Keirf ones? They're for the 27C400/800s.. i have that one but its not the right adaptor for these roms.Forgottenmyname wrote: ↑Sun Jan 27, 2019 1:33 pm Top tip, that explains the adaptors sold on eBay then?
My CDTV Nightmare
Moderators: terriblefire, Terriblefire Moderator
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Re: TF534 on CDTV
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"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: TF534 on CDTV
Ah ok, just be getting it confused with that as I need to get one of those adaptors too
If it ain't broke, test it to Destruction.
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Re: TF534 on CDTV
So went to finish this installation tonight and I appear to be a component short in the kit. Entirely possible that I sneezed it into one of the machines here but i've hunted high and low for an hour and no sign of it..
CDTV is now in a sad state of dismantlement... hope i can get it back together soon or it'll end up in the loft forever.
CDTV is now in a sad state of dismantlement... hope i can get it back together soon or it'll end up in the loft forever.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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Re: TF534 on CDTV
I put the CDTV back together but it doesn’t boot. A quick nosey on the LA tells me 0 is getting returned when accessing address 4. Address bus doesn’t appear to be shorted. Sigh.
And it’s not the ROM either. Tried 3.
And it’s not the ROM either. Tried 3.
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"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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Re: TF534 on CDTV
Looks like the lower data bus latches are fried... grrr.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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Re: TF534 on CDTV
From what i can tell U46 died. Maybe an ESD death. This a common thing?
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
- 8 Bit Dreams
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Re: TF534 on CDTV
Have a good chap who has CDTV spares, will try to find U46 for Youterriblefire wrote: ↑Tue Feb 05, 2019 3:28 pm From what i can tell U46 died. Maybe an ESD death. This a common thing?
Retro computer hardware & repair in Germany
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Re: TF534 on CDTV
Already ordered. Just wondering what will break next. All I was trying to do was replace the power switch and it’s become a rabbit hole
EDIT: U46 is one of these https://www.rapidonline.com/Texas-Instr ... gn=soluteN
EDIT: U46 is one of these https://www.rapidonline.com/Texas-Instr ... gn=soluteN
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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Re: My CDTV Nightmare
U46 removed
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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- Moderator Team
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- Joined: Mon Aug 28, 2017 10:56 pm
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Re: My CDTV Nightmare
Ok chip replaced and same behaviour. Upper half of data bus reads at location 0. Lower half does not. Always zero... which is mental when you consider the latches and OEs are connected.
Anyways.... I’m fed up with the CDTV. It’s going in the loft. Might sell it for parts.
Anyways.... I’m fed up with the CDTV. It’s going in the loft. Might sell it for parts.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."