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PowerBook 3400c Power Supply
| PowerBook 3400c Power Supply [message #347386] |
Fri, 30 June 2017 22:49 |
vintage-macs
Messages: 425
Registered: April 2014
Karma: 0
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Senior Member |
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Hello everyone,
I had a trusty PowerBook 3400c which I used to link up to my old Mac Plus. Recently I decided to buy a 2GB CompactFlash card to make a backup against a hard disk failure. My plan was to have it as a backup for Mac OS 8.9. Installation appeared to go smoothly until after the computer rebooted, at which point it hung at startup. I forced the machine off, then brought it back up, but it powered down suddenly and went blank. Now it longer powered on. I tried removing the Lithium Ion battery and the CD-ROM drive, and no go.
I measured the output voltage on the 45W power brick (Macintosh PowerBook 45W AC Adapter, M4895, APS-76) and it is reading 0 volts at the terminal. I suspect that the added power load of the CompactFlash card fried the power supply. Does this sound plausible?
Anyhow, assuming it is a burned out power supply, what are my options to replace it? I notice there are several 65W power supplies for iBooks that appear to have the same barrel connector. Would this be compatible with the PowerBook 3400c? I figure the 20W headroom might be a good thing if it works.
Thank you for any suggestions.
-- Marcio
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