Electronics Forum / Repair / September 2007

I have quite new LCD Samsung Syncmaster 720n monitor. Since about
three days there's a problem. On very start of comuter it shows
"Brightness" in center. It appears when it wants with no activity on
my side. When I press Auto or Menu button on monitor in disappears for

Model # HC-P4252W Chassis P59A. Bad convergence IC's STK 392-010,
replace resistors, if necessary. Now, the unit, has burn-in on two
CRT's. Is this common, & caused by the STK failure? Dani.

Got a call on one of these! Panasonic Model # PT-47X54J, Chassis #
AP832, shuts down after a couple of minutes. Convergence is apparently
ok. Anything comon here? Dani.,

Yesterday I ran cross this (satellite tv on my pc) which I never heard
of. I thought it was just a cool idea at first, but then I thought
about it. I hardly get to watch my favorite shows when I'm on the road
and I always have the internet, but no good channels in the hotels I

Had been seriously dropped in a flight case and a number of problems, now
sorted so it now works but there is a fairly low level background hum
problem with no input.
I have the schematic from Ashdown, but is anyone familiar with them ?

Hey Folks,
I have an Viewsonic PF775 CRT monitor on an older computer. This is my
linux play box/secondary computer (ie, I don't want to spend a bunch
of money on). Went to fire it up and the monitor came up blank, though

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    I have a Sony Network Walkman (NW-S205F) that has been
accidentally formatted through Windows Vista instead of just erasing
all of its files; Neither SonicStage nor Winamp recognize it as more
than a USB drive.  What can I do to restore any files necessary to

Model # SLV-960HF, goes to a raster, not snow, no audio, & no signal
on audio/video input.
Are these known for bad tuners? $ 208 Canadian list. Dani.

Model # 774-15580, "Prima" Model # Q3250. BSC29-N1111 flyback was
arcing, replaced it, then R313 1.0 ohm fusible burnt open, almost
right away, after startup, & found vertical IC
N301 was bad, now the set5 works great, but the B+ while running is

I'm posting this with hopefully enough keywords so that other people
can Google and find it, and so save themselves some time if they run
into the same issue.
We have 8 identical workstations, each with a Lite-On SHM-165PS

Is anyone familiar with this 1990 model? And if so would you know what
this set uses for convergece IC's? Also is there a separate
convergence board? Thanks, Lenny Stein, Barlen Electronics.

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Update - on  old Panasonic (TX-28ps1)...
... on first switching on ... picture shows very bright
-sometimes almost white... if it gets too white it
seems to cause the TV to switch off into standby...

I Have a DMR-E55 with the perpetual restart-self-check problem. I have
narrowed it down to a faulty IC001 - STRG6353. I also have a couple of
other parts which are faulty R003, a 1W resistor, but I can't read the
value, measures 0 ohms, as does diode D005 a T3D46. The 4 and the 6 ...