Chuck Guzis wrote:
Oh, heck--bad Chinese capacitors are showing up in new
gear too. I
just picked up a couple of HP LCD monitors (circa 2007-2008). Both
had bulgy filter caps in the power supply. Replaced with new ones
(Nichicons), the monitors work fine.
I've had that with my ca.2007 Viewsonic VX922. It was great "fun" trying
to claim on the Viewsonic "guarantee." Quoted because said guarantee
isn't worth the paper it's printed on -- the paper slip included with
the monitor states that parts and labour are covered, and return
shipping. Apparently there's been a "retroactive change in policy" since
then and that "no longer applies" -- now customers are expected to pay
shipping both ways (to the Netherlands), and the warranty is now two
years instead of three. From what I was told, the warranty starts from
the date of manufacture, not the date of sale (which I'm pretty sure is
illegal under UK law).
NEC (aka NEC-Mitsubishi) are scarcely any better. The anti-glare coating
started peeling off my old CRT monitor just shy of the guarantee ending.
Called them and got the runaround:
"Well you must have cleaned it with a chemical solvent."
"Only Water and a microfibre cloth, as it says in the instruction book."
"Water is a chemical solvent."
I ended up being passed back and forth between two different CSRs, then
finally to a "customer services supervisor" who stated quite plainly
that "any failure of the anti-glare coating would be considered customer
misuse and void the guarantee entirely."
"So what if, say, the power supply fails?"
"Well, you'd have to pay for that because the warranty is voided by the
CRT damage."
It'll be a cold day in hell before NEC or Viewsonic see any more of my
money. Perhaps it's just me, but monitor manufacturers really seem to be
the lowest-of-the-low for customer service. The only companies with a
worse rating (IME) are computer parts suppliers.
As for the Viewsonic, I opened it up, catalogued all the electrolytics,
then bought a full set of Panasonic parts from Farnell. Had the monitor
working again by 4pm. Eight capacitors, most soldered between power and
ground, none of which had any form of thermal relief against the ground
plane. The PCBs have BIG ground planes. Soldering them was not fun.
There's a forum dedicated to this
phenomenon--badcaps.net.
And a very useful forum it is, too.
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/