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XF551 Update

XF551s

 

[dropcap]O[/dropcap]kay time for an update.  I recieved the modern power supply test board about a week or two ago.  Soldered everything in and it is working with a 24V 1.5 A DC wall plugin.  So that is a big step for the modern version of the XF551.  I am currently about ready to send the alternate osc circuit and the LED test boards to Itead for manufacture.  In about two weeks or so when they come in I can test them and if they pass, that’ll be the final phase before sending the complete modern XF551 board in.

DSC_1705

Not so good for the original power supply test board.  I got the test board in yesterday and finished soldering the parts in tonight.  It didn’t blow or let out black smoke but there is no voltage at the drive connector.    I know the Atari transformer is working because I can power a 1050 with it.  So either I wired the DPDT switch wrong or something else in the wiring is wrong.  So it’s back to the schematics to see if I can rewire the test board to see if I can get it to work.

***Edit****

Yipee!  It was in the schematic.  Had the switch wired wrong.  Cut the wrong trace and wired it right.  Success!!!  Now both the modern and original power supplies are working.

 

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