The TF536 on a CDTV (Project Abandoned)

bartekmalysz · Post by **bartekmalysz** » Thu Jul 09, 2020 2:12 pm

I have a perfect condition full CDTV if you're interested, only missing matching 1048S in black

Post by **terriblefire** » Thu Jul 09, 2020 2:56 pm

bartekmalysz wrote: ↑Thu Jul 09, 2020 2:12 pm I have a perfect condition full CDTV if you're interested, only missing matching 1048S in black

OOooh...

go0se · Post by **go0se** » Thu Jul 09, 2020 3:12 pm

bartekmalysz wrote: ↑Thu Jul 09, 2020 2:12 pm I have a perfect condition full CDTV if you're interested, only missing matching 1048S in black

Be sure to do proper due diligence before selling a CDTV to TerribleFire, he has a history of threatening behaviour towards this classic machine elsewhere on this very forum.....

Re: My CDTV Nightmare
well it cost me 200 quid and i'm gonna put an axe through it... CDTV is my least fav ever Amiga now.

Post by **terriblefire** » Thu Jul 09, 2020 3:13 pm

Well mine got me really mad.

go0se · Post by **go0se** » Thu Jul 09, 2020 3:15 pm

terriblefire wrote: ↑Thu Jul 09, 2020 3:13 pm Well mine got me really mad.

I've owned one for less than 24 hours, it hasn't had time to Gipsy Kiss me off yet!

Post by **terriblefire** » Thu Jul 09, 2020 3:17 pm

i pressed my TF536 into it and the pins under the board bent over and shorted out.

I had to replace the flexi cables and power button. then the IR control chip died, PSU died and 2 transistors died.

go0se · Post by **go0se** » Thu Jul 09, 2020 3:39 pm

terriblefire wrote: ↑Thu Jul 09, 2020 3:17 pm i pressed my TF536 into it and the pins under the board bent over and shorted out.

I had to replace the flexi cables and power button. then the IR control chip died, PSU died and 2 transistors died.

I've noticed this feature of the motherboard,

"Shall we put a standoff post at the front right corner of the motherboard and anchor it to the chassis? the PCB designer has put a large hole through the board specifically to accommodate it..."

- "No, let's just leave it flapping in the wind, it'll save $0.04 per machine and no one will ever open this thing up anyhow..."

go0se · Post by **go0se** » Thu Jul 09, 2020 6:08 pm

As I know CDTV users are impatient and demand immediate gratification I decided to create a prototype of the design before giving the go ahead to JLCPCB.

Here are the results :

As a donor 1.6mm PCB I was forced to use my one and only beloved TF330 as I had nothing else suitable kicking around. Sad to see her go after all the hours of fun we had together but these sacrifices have to be made in the name of progress... CD32 is the past, CDTV is the future!!

: DSC_0205.resized.JPG (100.93 KiB) Viewed 3277 times

Let's mark it up with the correct dimensions taken from Kicad :

: DSC_0211.resized.JPG (87.2 KiB) Viewed 3277 times

Measure once, cut twice..

: DSC_0214.resized.JPG (55.54 KiB) Viewed 3277 times

Sacrifice #2 : An A500 68000 relocator prototype to give us the correct 2.54mm hole placement. Pinned at each end with 1.3mm drill bits for correct alignment.

: DSC_0217.resized.JPG (95.11 KiB) Viewed 3277 times

Enough holes drilled to allow an install. Some wonky examples!
8mm hole added at bottom left to allow capacitor clearance.

: DSC_0222.resized.JPG (123.93 KiB) Viewed 3277 times

Pins installed.

: DSC_0232.resized.JPG (98.47 KiB) Viewed 3277 times

: DSC_0230.resized.JPG (113.34 KiB) Viewed 3277 times

Installed: Capacitor is not aligned through hole, this is due to the positioning of the cap being way off footprint centre on the motherboard. I will adjust the design to allow more room here as this is probably common..