Blown Capacitor at point D15 on Logic Board

Question

PowerBook 180

PowerBook 180은 PowerBook 140 시리즈의 Apple PowerBook 라인 최상위 제품입니다. 1992년 10월에 출시되었으며 1994년 5월에 단종되었습니다. 사양에는 33mhz 68030 프로세서, 80/120 mb SCSI 하드 드라이브, 그리고 1.44 mb 플로피 디스크 드라이브를 포함하였습니다.

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afischer15 @afischer15

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게시일: 2013년 11월 6일

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Blown Capacitor at point D15 on Logic Board

Hey guys!

So I acquired a powerbook 180 from work. Unfortunately, it didn't work when I plugged it in. I opened it up, took it apart, and found a bulging capacitor. It's square, has the letters KM on it, and is set at pins labeled "D15" on the logic board near the charging port. It gets very hot when plugged in.

Any idea how I would go about fixing this or acquiring parts?

Pictures at this link:

http://imgur.com/a/Y6xjv

You can see there is electrolyte leaking from the part.

Thanks!

-A

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the letter D makes it a Diode, not a capacitor. Now we just have to find the right one:-)

oldturkey03 의 2013년 11월 6일

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oldturkey03 @oldturkey03

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afischer15, just checked your images again. The "KM" you referred to is actually a "KW" That marking and the D15 identify your component as a DDZ13B SURFACE MOUNT PRECISION ZENER DIODE. The part is available at places like this. The datasheet containing all the specs for the diode is available right here. Hope this helps, good luck

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Thank you for accepting my answer

oldturkey03 의 2013년 11월 7일

Hate to bump this old thread, but I wanted to let you know that I was able to use my (somewhat lacking) soldering skills and get the computer to boot successfully. You rock!

afischer15 의 2014년 2월 19일

You know what? that is actually really great of you, to come back here to let us know you got it done. That is truly great fixin' Thanks for letting us know.

oldturkey03 의 2014년 2월 19일

Thanks for this info. I replaced D15 with DDZ13B SURFACE MOUNT PRECISION ZENER DIODE from Mouser but it seems too small. I was able to get it to power on now but the PB180 powers off after a high current draw (hard drive booting up). Is this Zener diode suitable for location D15?

Mike Matkovic 의 2023년 9월 14일

@mikematkovic I just re-verified and yes, that is the right one for D15

oldturkey03 의 2023년 9월 14일

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the letter D makes it a Diode, not a capacitor. Now we just have to find the right one:-) — oldturkey03
Hate to bump this old thread, but I wanted to let you know that I was able to use my (somewhat lacking) soldering skills and get the computer to boot successfully. You rock! — afischer15
You know what? that is actually really great of you, to come back here to let us know you got it done. That is truly great fixin' Thanks for letting us know. — oldturkey03
Thanks for this info. I replaced D15 with DDZ13B SURFACE MOUNT PRECISION ZENER DIODE from Mouser but it seems too small. I was able to get it to power on now but the PB180 powers off after a high current draw (hard drive booting up). Is this Zener diode suitable for location D15? — Mike Matkovic
@mikematkovic I just re-verified and yes, that is the right one for D15 — oldturkey03

vega300 @vega300 평판: 9 1 · Answer 1 · 2014-04-22T14:17:36-07:00

vega300 @vega300

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게시일: 2014년 4월 22일

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Hello, afischer15!

Please let me know, you just replaced the diode DDZ13B and the computer turned on successfully?

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Wow, this is old!

Yes - I was able to get the computer to boot after replacing the diode. It is a bit finicky, sometimes the screen flickers, and the computer shuts itself down when a floppy is inserted, but it boots to the login screen just fine. I haven't had time to try to figure out the password, sadly. I do have the number of the former owner... I should call him up.

afischer15 의 2014년 4월 22일

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PowerBook 180

Blown Capacitor at point D15 on Logic Board

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