Digest for sci.electronics.repair@googlegroups.com - 6 updates in 2 topics

"jfeng@my-deja.com" <jfeng@my-deja.com>: Sep 13 10:05AM -0700

All of these anecdotes remind me of the complaints about TV repair men charging $50 to replace a 25-cent capacitor if you brought it in to the shop, and $100 if he came out to your place. The argument always was that part of the charge was for knowing which part to replace.
Ralph Mowery <rmowery28146@earthlink.net>: Sep 13 01:52PM -0400

In article <5e17ae67-6978-4191-be1e-520bf2f93443@googlegroups.com>,
jfeng@my-deja.com says...
 
> All of these anecdotes remind me of the complaints about TV repair men charging $50 to replace a 25-cent capacitor if you brought it in to the shop, and $100 if he came out to your place. The argument always was that part of the charge was for knowing which part to replace.
 
That is why I had no problem when I was told it would be $ 100 just for
the man to come out. Not for him to add over $ 200 more for a $ 15 part
that took 10 minuits to find and install. I would have allowed him $ 50
for the markup on the part.
 
 
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Mike Coon <gravity@mjcoon.plus.com>: Sep 13 08:00PM +0100

In article <slrnqnnc6e.fgq.nomail@xs9.xs4all.nl>, nomail@example.com
says...
 
> Not only for the capacitor, but also for the TV ADs.

Save money; don't watch!
 
Mike.
Rob <nomail@example.com>: Sep 14 08:19AM

> All of these anecdotes remind me of the complaints about TV repair men charging $50 to replace a 25-cent capacitor if you brought it in to the shop, and $100 if he came out to your place. The argument always was that part of the charge was for knowing which part to replace.
 
I think that one was more like:
- 25c to replace capacitor
- 49.75 to know which one.
 
(not really depending on location)
 
However, that is a different thing. What this discussion is about is
more the charging of $250 for a repair that reasonably would cost $50,
just because of the middlemen involved and their scheme of scamming
people in dispair.
Ralph Mowery <rmowery28146@earthlink.net>: Sep 14 10:17AM -0400

In article <slrnqnp8k0.ksa.nomail@xs9.xs4all.nl>, nomail@example.com
says...
> more the charging of $250 for a repair that reasonably would cost $50,
> just because of the middlemen involved and their scheme of scamming
> people in dispair.
 
Right. I just had some painting done on the house. I told the painter
I did not want an itimized list of what all he used, just how much the
job would cost. I don't care if he bought paint for $ 50 a gallon
because he gets a discount and the list price is $ 70 a gallon.
 
It gets me when I go to the car dealer to have the standard service of
oil change, tires rotated, and a few other things when I get it safety
inspected as required by the state. They list many things even like the
shop towels they wipe their hands with and the disposal fee for the old
oil. I know they have to wipe and wash their hands and get rid of the
old oil. All I need is the bottom line cost, or if they have to do
anything extra like install new wiper blades or light bulbs to pass the
inspection.
 
When I paid the AC man to come out for $ 100 I was expecting that to
cover his trip and other odd things. As it only took him 10 minuits to
find and replace, I feel ripped off getting charged $ 300 for the $ 15
capacitor. I felt like the bill should have been more like $ 150 total.
Now if he had taken a lot of time to find a difficult problem, a higher
charge would be required.
 
In many cased it is not the actual part cost, but the over all charge
that I complain about. Had I not known that a capacitor should not be
over $ 25 (their cost) I might have thought $ 200 for a part may be
reasonable.
 
 
 
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John Robertson <spam@flippers.com>: Sep 13 12:16PM -0700

On 2019/09/12 7:05 a.m., John-Del wrote:
 
> The few that I swapped from donors I used Dow 340 (my favorite heat sink compound). You certainly can use Arctic Silver or other similar compound. I don't think that chip gets particularly hot in any case.
 
> The front window is uncoated glass, and you can use anything on it to clean it.
 
> I'm concerned with the dust though.. Mouser has always been a good supplier but I wonder if the DMD chip you got isn't a used one. Before installing it, look at it under a strong eye loop while slowly rotating it. Any stuck pixels will stand out.
 
The dust blew off...and no stuck pixels.
 
The replacement TI chip worked just fine, and I used thermal paste
instead of a thermal pad. I did check that the chip was under some
compression against the heat sink prior to using the compound, and we
polished the contact face of the heatsink hoping to get a slightly
better heat transfer. I assume (hope) that was a good idea...
 
Ran it last night for five hours...
 
Thanks for the advice!
 
John :-#)#
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