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STE 32MHz PLUG IN BOOSTER ON/OFF

Help & information about the STE V1 series boosters.
gigi92
Posts: 32
Joined: Tue May 14, 2024 11:25 am

Re: STE 32MHz PLUG IN BOOSTER ON/OFF

Post by gigi92 »

Here we are, I did all the mandatory fixes, everything went well, the problem of the machine not turning on without pressing the reset button is solved and the TSE is stable.

Before plugging in the booster can you tell me where the PAD SW because it is not indicated on the booster.

Thank you in advance.
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rubber_jonnie
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Re: STE 32MHz PLUG IN BOOSTER ON/OFF

Post by rubber_jonnie »

Can I suggest you provide a close up shot of the top and bottom of the booster board please, it'll help more than the pics of the mainboard as the SW pad is not on that.

I'm not familiar with this specific booster (Mine are older) so without clear pics it's hard to say.

On my booster the SW pad is near the CE pad for the ROMs and behind the GAL.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
gigi92
Posts: 32
Joined: Tue May 14, 2024 11:25 am

Re: STE 32MHz PLUG IN BOOSTER ON/OFF

Post by gigi92 »

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Also 0v is a ground? (sorry for that stupid question)
Thanks for help
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HigashiJun
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Re: STE 32MHz PLUG IN BOOSTER ON/OFF

Post by HigashiJun »

CE is at the top edge of the Booster, near the GAL.

SW should be the other via, below CE.
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rubber_jonnie
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Re: STE 32MHz PLUG IN BOOSTER ON/OFF

Post by rubber_jonnie »

As @HigashiJun said, /CE is at the top left corner of your picture below the resistor, SW is the next pad down between the resistor and mosfet/transistor.

You need to connect it to GND with a switch to change CPU speed. That can be GND anywhere on the STE, on mine I use the GND plane around the edge of the mainboard and it works just fine.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
gigi92
Posts: 32
Joined: Tue May 14, 2024 11:25 am

Re: STE 32MHz PLUG IN BOOSTER ON/OFF

Post by gigi92 »

Thank you it's clear, I soldered a PIN in anticipation and certainly I would put the other end on the edge.

Otherwise... it's finished everything works, it's impressive, hard to go back to a stock ST now.

Just SYSinfo said CPU 8mhz ... Well, I can see that this is not the case, if you have an explanation.

i will go to play with :D
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rubber_jonnie
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Re: STE 32MHz PLUG IN BOOSTER ON/OFF

Post by rubber_jonnie »

:girldance:
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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Location: Tokyo

Re: STE 32MHz PLUG IN BOOSTER ON/OFF

Post by HigashiJun »

:yay2:
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HigashiJun
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Joined: Fri Jun 19, 2020 7:21 am
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Re: STE 32MHz PLUG IN BOOSTER ON/OFF

Post by HigashiJun »

You can now install NVDI and you'll have even more impressive results.

8-)
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