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- From: johnston@me.udel.edu (Bill Johnston)
- Newsgroups: comp.sys.mac.hardware
- Subject: Replacing dead SE/30 power supply (SUMMARY)
- Message-ID: <BtD4L2.KGF@news.udel.edu>
- Date: 22 Aug 92 02:07:50 GMT
- References: <Bt7rt2.7Cv@news.udel.edu>
- Sender: usenet@news.udel.edu
- Distribution: usa
- Organization: University of Delaware
- Lines: 66
- Nntp-Posting-Host: me.udel.edu
-
- johnston@me.udel.edu (Bill Johnston) writes:
-
- >The power supply in my SE/30 appears to be dead.
- [...]
- >I`ll write up an SE/30 home repair guide when I've got
- >the damn thing running!
-
- In a nutshell: get Larry Pina's book "The Dead Mac Scrolls"!
-
- My SE/30 actually had two problems, both covered in the Pina's book,
- and easy to fix. First there was an intermittent video flicker --
- like little lightning bolts running down the center of the screen.
- These occured when the machine was hot, and usually crashed the Mac.
- Second, sometimes nothing happened when I flipped on the power switch.
-
- The video problem was caused by a loose connection to the picture
- tube. I knew this was a problem because the connector had once
- worked itself loose while I was travelling, so I've always been
- careful to seat it firmly whenever I work inside the Mac. What
- I didn't realize is that the connector was working it's way off
- bit by bit when the Mac got hot, and the wires that run from
- the analog board to the connector also seem to push it loose.
-
- Pina suggested fastening connector to tube with a dab of hot glue.
- Result: no more video intermittents and better vibration resistance!
-
- Second problem: the SE-SE/30 on-off switch is known to die
- occasionally. I may have exacerbated the problem by soldered
- AC fan wires to the leads, but I found that one side of the
- switch failed to make a reliable connection consistently.
-
- Total cost: $32 book, $7.50 for a glue gun. The switch is
- supposed to cost $3 bucks, but I jumpered it out until I can
- find a vendor (Digi-Key doesn't carry that size.)
-
- My original article asked for feedback on "exchange repair"
- outfits who sell discounted replacement parts if you return
- your defective part after fixing your Mac. I'll pass along
- a word of caution: some companies advertise different prices
- in different magazines and then quote still different prices
- by phone. This means: 1) there is ample room to dicker,
- and 2) caveat emptor, of course.
-
- Both Shreve Systems and Pre-Owned Electronics seemed willing to
- adjust prices when I simply mentioned having called the other.
-
- Soft Solutions, Inc. was much more impressive on the phone:
-
- 1) they asked me about the symptoms and made useful suggestions
- 2) the offered to fax me some tech info (too bad that my Mac is
- my fax machine ...)
- 3) offered to sell me a copy of Pina's book, with so little
- sales pressure that I ended up paying more for a copy the
- next day at ComputerLand
- 4) the price they offered for the same parts was lower
- 5) they called me back later with another suggestion,
- also helpful, and at their own expense
-
- Soft Solutions (503) 461-1136. Buy something from them;
- I feel guilty!
-
- Thanks, Larry Pina, and thanks to the netters who e-mailed
- suggestions. Now I know how you all got so smart!
- --
- -- Bill Johnston (johnston@me.udel.edu)
- -- 38 Chambers Street; Newark, DE 19711; (302)368-1949
-