lee5155 Posted October 26, 2023 Report Share Posted October 26, 2023 (edited) has anyone replaced their circuit board on their dewalt 788 type 2 and if so where did you get it Edited October 26, 2023 by lee5155 OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted October 26, 2023 Report Share Posted October 26, 2023 I never replaced that part but I did replace almost everything else.. ... I got my parts from www.ereplacementparts.com Just type in DW788 in the search bar and it'll bring up your exploded parts view and the parts list.. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted October 26, 2023 Report Share Posted October 26, 2023 Well, I decided to look for it and it's not available anymore.. what the heck? they still make and sell DeWalts don't they? says obsolete part.. I did find this on eBay and it's only showing 3 in stock.. I'd probably nab it up if you really need one.. There was another store that I've never heard of that said in stock but I'd be a little cautious about that.. at least eBay has some buyer protection if it's not in stock they'll make sure you get your money back.. https://www.ebay.com/itm/126126759858 I also wonder how much difference it might be from a Excalibur type board.. they appear to have the same style / look motors and very similar design etc.. probably the same part.. Seyco would be my choice if they are the same board.. Ray or Mike from Seyco might know if they're the same.. I'd probably go for the eBay one.. but if that fails then I would talk to Seyco. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
lee5155 Posted October 26, 2023 Author Report Share Posted October 26, 2023 Thanks for the reply I did find some on Amazon at about $56.00 I am hope that type 1 and 2 use the same board because the site does not say anything , and it is cheaper then a new saw and I do like the 788 . OCtoolguy, danny, kmmcrafts and 1 other 4 Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted October 26, 2023 Report Share Posted October 26, 2023 13 minutes ago, lee5155 said: Thanks for the reply I did find some on Amazon at about $56.00 I am hope that type 1 and 2 use the same board because the site does not say anything , and it is cheaper then a new saw and I do like the 788 . Pretty sure they're the same.. I have not found any differences in parts between the type 1 & 2.. other than where it was made.. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
Scrappile Posted October 26, 2023 Report Share Posted October 26, 2023 I bet if you have any kind of electronic shop around, they could repair you board for even less. Maybe even a computer repair shop. OCtoolguy and kmmcrafts 1 1 Quote Link to comment Share on other sites More sharing options...
lee5155 Posted October 26, 2023 Author Report Share Posted October 26, 2023 Might have to give that a try thanks for the info OCtoolguy and danny 2 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted October 26, 2023 Report Share Posted October 26, 2023 I would think a call to Dewalt might be in order. They still make/sell the saw so parts should not be a problem. danny 1 Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted October 26, 2023 Report Share Posted October 26, 2023 7 minutes ago, OCtoolguy said: I would think a call to Dewalt might be in order. They still make/sell the saw so parts should not be a problem. I half wonder if it's just a matter of a computer chip shortage that has trickled through the system from back during the covid crap we went through.. I'm not too far from the auto manufactures and they had brand new cars sitting in parking lots waiting for computer chips so they could sell them. DeWalt will buy up what they need to keep producing new saws but make the parts obsolete.. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted October 27, 2023 Report Share Posted October 27, 2023 9 hours ago, kmmcrafts said: I half wonder if it's just a matter of a computer chip shortage that has trickled through the system from back during the covid crap we went through.. I'm not too far from the auto manufactures and they had brand new cars sitting in parking lots waiting for computer chips so they could sell them. DeWalt will buy up what they need to keep producing new saws but make the parts obsolete.. I highly doubt they make the boards. But you may be right. I'd still give Dewalt service a call. Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted October 27, 2023 Report Share Posted October 27, 2023 8 hours ago, OCtoolguy said: I highly doubt they make the boards. But you may be right. I'd still give Dewalt service a call. I don't know what parts go into a board.. I'm doubtful they make the board too, I meant maybe some of the chips and parts that go into the board had a shortage.. There were a lot of things during the chip shortage that we couldn't get.. Friend of mine had to buy a new refrigerator because of something in the board on it needed replaced but they couldn't get them and I guess he wasn't going to wait until they could get the part.. Which reminds me.. I need to see if I can finally get a spare car key made. Two of my cars I bought only have one key and they have the special chip keys.. couldn't get them 2-3 years ago because of all that.. This may having nothing to do with the scroll saw boards I don't know.. Just saying it could be they only are making / buying enough boards to make "new saws" instead of selling boards... OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
CharleyL Posted October 29, 2023 Report Share Posted October 29, 2023 The only repair that I've done on the electronics of a DeWalt 788 scroll saw was to replace the speed control potentiometer of one of the 788 saws that belong to my woodworking club's Outreach Program. The saw on it's stand had not been secured adequately and fell over in the trailer, bending the shaft of the speed control. This was when Radio Shack was still in business, so a trip to the local store found the 10 K ohm potentiometer, but with a 3" long shaft. A few seconds in my workbench vice and a hack saw corrected the length of the shaft and it was an easy installation after that. DeWalt had wanted to sell the complete electronics board together with the speed control potentiometer for something like $70, but I fixed it for about $5. There isn't much to go wrong with the electronics. 1. If you are certain that power is reaching this board (bad fuse or switch maybe) from power plug through power switch and up to the board, and 2. testing the motor leads (without power) using an ohmmeter (to check for good brushes and a few ohms of resistance of the motor windings) shows that the motor should be functional, then the problem has likely to be something wrong with the circuit board. I would make certain that both the power and the motor test good at this point before proceeding with the circuit board repair or replacement. I think the circuit board is the least likely source of your problem. Charley OCtoolguy and Roberta Moreton 1 1 Quote Link to comment Share on other sites More sharing options...
Roberta Moreton Posted November 3, 2023 Report Share Posted November 3, 2023 On 10/29/2023 at 4:00 PM, CharleyL said: The only repair that I've done on the electronics of a DeWalt 788 scroll saw was to replace the speed control potentiometer of one of the 788 saws that belong to my woodworking club's Outreach Program. The saw on it's stand had not been secured adequately and fell over in the trailer, bending the shaft of the speed control. This was when Radio Shack was still in business, so a trip to the local store found the 10 K ohm potentiometer, but with a 3" long shaft. A few seconds in my workbench vice and a hack saw corrected the length of the shaft and it was an easy installation after that. DeWalt had wanted to sell the complete electronics board together with the speed control potentiometer for something like $70, but I fixed it for about $5. There isn't much to go wrong with the electronics. 1. If you are certain that power is reaching this board (bad fuse or switch maybe) from power plug through power switch and up to the board, and 2. testing the motor leads (without power) using an ohmmeter (to check for good brushes and a few ohms of resistance of the motor windings) shows that the motor should be functional, then the problem has likely to be something wrong with the circuit board. I would make certain that both the power and the motor test good at this point before proceeding with the circuit board repair or replacement. I think the circuit board is the least likely source of your problem. Charley That saw is still running like a champ Charley. I used it all weekend at the Extravaganza! CharleyL and OCtoolguy 1 1 Quote Link to comment Share on other sites More sharing options...
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