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Anybody have a schematic for the SMPS for this laptop?
Anybody have a schematic for this simple SMPS?
AC to DC Adapter for the IBM Thinkpad T22 16V 3.36A On the unit itself is Battery Technology, Inc. IB-PS365 09000000106991 from that I found: Battery Technology, Inc. 16500 East Gale Avenue City of Industry, CA 91745-1712 Tel: 626-336-6878 Fax: 626-336-5657 http://www.batterytech.com but, they don't answer their phone, nor does their website 'find' any refrence to this model?! the 800 number from their own website comes up disontinued. Anybody have a schematic? Especially interested in the input section = AC mains up to the rectifiers and fusing. |
Anybody have a schematic for the SMPS for this laptop?
Robert Macy wrote:
Anybody have a schematic for this simple SMPS? AC to DC Adapter for the IBM Thinkpad T22 16V 3.36A On the unit itself is Battery Technology, Inc. IB-PS365 09000000106991 from that I found: Battery Technology, Inc. 16500 East Gale Avenue City of Industry, CA 91745-1712 Tel: 626-336-6878 Fax: 626-336-5657 http://www.batterytech.com but, they don't answer their phone, nor does their website 'find' any refrence to this model?! the 800 number from their own website comes up disontinued. Anybody have a schematic? Especially interested in the input section = AC mains up to the rectifiers and fusing. Don't have the schematic, but tracing out the input part from the board oughta be trivial. Anything particular you're trying to determine? |
Anybody have a schematic for the SMPS for this laptop?
On Nov 4, 11:05*am, mike wrote:
Robert Macy wrote: Anybody have a schematic for this simple SMPS? AC to DC Adapter for the IBM Thinkpad T22 * 16V 3.36A On the unit itself is Battery Technology, Inc. IB-PS365 09000000106991 from that I found: Battery Technology, Inc. 16500 East Gale Avenue City of Industry, CA *91745-1712 Tel: 626-336-6878 Fax: 626-336-5657 *http://www.batterytech.com but, they don't answer their phone, nor does their website 'find' any refrence to this model?! the 800 number from their own website comes up disontinued. Anybody have a schematic? *Especially interested in the input section = AC mains up to the rectifiers and fusing. Don't have the schematic, but tracing *out the input part from the board oughta be trivial. Anything particular you're trying to determine? pigtail fuse size [can't read without removing] any potential parts that may have zapped when the liquid hit it while powered. |
Anybody have a schematic for the SMPS for this laptop?
On Nov 4, 10:11*am, Robert Macy wrote:
Anybody have a schematic for this simple SMPS? AC to DC Adapter for the IBM Thinkpad T22 * 16V 3.36A This is a "fat snake" right? Can these be repaired? I always thought they were completely potted with epoxy. I've never seen one that was screwed together. |
Anybody have a schematic for the SMPS for this laptop?
Robert Macy wrote:
On Nov 4, 11:05 am, mike wrote: Robert Macy wrote: Anybody have a schematic for this simple SMPS? AC to DC Adapter for the IBM Thinkpad T22 16V 3.36A On the unit itself is Battery Technology, Inc. IB-PS365 09000000106991 from that I found: Battery Technology, Inc. 16500 East Gale Avenue City of Industry, CA 91745-1712 Tel: 626-336-6878 Fax: 626-336-5657 http://www.batterytech.com but, they don't answer their phone, nor does their website 'find' any refrence to this model?! the 800 number from their own website comes up disontinued. Anybody have a schematic? Especially interested in the input section = AC mains up to the rectifiers and fusing. Don't have the schematic, but tracing out the input part from the board oughta be trivial. Anything particular you're trying to determine? pigtail fuse size [can't read without removing] any potential parts that may have zapped when the liquid hit it while powered. Every thinkpad supply I've seen has been free of vent holes. You'd have to drop in a puddle and leave it there to get much liquid in. You gotta take out the fuse to replace it. If it's not marked, you can make a guess based on the input current numbers on the sticker. As for failure, when you fill it up with liquid, the input circuit is not the weakest link. With a new fuse, you should measure continuity between the input connector and the diodes. Check the diodes. That's about all you can do. More likely, liquid got into the switcher and smoked the main switch transistor blowing the fuse. Check resistance source to drain on the FET. Depending on what liquid, how long before it got throughly neutralized and thoroughly dried, you may want to find a dumpster. It's not extremely likely, but if some bit of corrosion grows and causes the output voltage to increase to levels lethal to the thinkpad, you'll be looking for a slightly bigger dumpster. If it catches fire and burns down your house, you'll need a REALLY BIG dumpster. The risk is critically dependent on whether the liquid was clean water dried immediately or cat pee left for a month. |
Anybody have a schematic for the SMPS for this laptop?
spamtrap1888 wrote:
On Nov 4, 10:11 am, Robert Macy wrote: Anybody have a schematic for this simple SMPS? AC to DC Adapter for the IBM Thinkpad T22 16V 3.36A This is a "fat snake" right? Can these be repaired? I always thought they were completely potted with epoxy. I've never seen one that was screwed together. I've never seen one potted. Clamp it in a vise and whack the seam with a wood chisel. With practice, they snap apart relatively easily. |
Anybody have a schematic for the SMPS for this laptop?
On Fri, 4 Nov 2011 11:36:26 -0700 (PDT), spamtrap1888
wrote: On Nov 4, 10:11*am, Robert Macy wrote: Anybody have a schematic for this simple SMPS? AC to DC Adapter for the IBM Thinkpad T22 * 16V 3.36A This is a "fat snake" right? Can these be repaired? I always thought they were completely potted with epoxy. I've never seen one that was screwed together. I've seen them glued together and held together with screws. Usually they are a simple SMPS, and quite simple to troubleshoot. PlainBill |
Anybody have a schematic for the SMPS for this laptop?
On Nov 4, 11:36*am, spamtrap1888 wrote:
On Nov 4, 10:11*am, Robert Macy wrote: Anybody have a schematic for this simple SMPS? AC to DC Adapter for the IBM Thinkpad T22 * 16V 3.36A This is a "fat snake" right? Can these be repaired? I always thought they were completely potted with epoxy. I've never seen one that was screwed together. Actually, two cables and a plastic box. The box is a 'snap apart' by gently inserting tool along the separation edges. |
Anybody have a schematic for the SMPS for this laptop?
I don't recall ever seeing a typical clear glass fuse that wasn't
permanently marked with numbers pressed into the end cap. Some old pigtails were often fitted with pressed-on "over" caps (to which the leads were resistance welded), and removing the caps would reveal the numbers in the underlying cap on the glass. Flush-cutting wire cutters, or even a utility knife will cut the pressed-on cap, it's only plated brass. If the numbers are covered with solder, wick off the solder to reveal the numbers. -- Cheers, WB .............. "Robert Macy" wrote in message ... Anybody have a schematic for this simple SMPS? AC to DC Adapter for the IBM Thinkpad T22 16V 3.36A On the unit itself is Battery Technology, Inc. IB-PS365 09000000106991 from that I found: Battery Technology, Inc. 16500 East Gale Avenue City of Industry, CA 91745-1712 Tel: 626-336-6878 Fax: 626-336-5657 http://www.batterytech.com but, they don't answer their phone, nor does their website 'find' any refrence to this model?! the 800 number from their own website comes up disontinued. Anybody have a schematic? Especially interested in the input section = AC mains up to the rectifiers and fusing. |
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