[RFI] Sony WEGA RFI Problems

Peter D. Vouvounas wb3fsr@home.com
Tue, 4 Sep 2001 08:56:58 -0400

Dear HAM friends,

Have any of you experienced and or found a cure for broadband noise emitted
from the Sony WEGA XBR TV???

A couple of months ago we placed a new home theater system in our living
room which includes a new flat screen 36" WEGA XBR.

Shortly after we installed a new amateur antenna system on an 18' roof tower
atop our home (5 Band HEX BEAM, 2 very long M2 VHF/UHF yagi's, Carolina
Windom hanging off the tower and a G7 Hustler Collinear on the top of the
24' boom.

Besides lot's O electrical line noise on 20 - 10 meters I discovered an S6
level of noise that's generated by the Sony TV that runs from approx. 13 MHz
through 16.5 MHz.

It took a number of months to find this one due to the TV not normally on
when I'm in the HAM shack (basement Office / Ham Shack)  Now enter
granddaughter (3.5 yrs old) and boom - What in the World is that noise on 20
Meters HIHI.

Between this and the electrical noise's that I've been "working" with GPU
power, it's more than a challenge to work decent DX.

Earlier I tried to share my step by step log with the group related to the
electrical escapades, but I've never seen it show up on the list
distribution.  I may try this again for others input regarding any new

Contacted Sony customer service and their fist response included going to
Radio Snack and purchasing a TVI filter @$%@#$% following a slightly more
demanding request for escalation they issues me a case number with a listing
of three TV repair shops to select from.  Sony indicated that they will pay
for an authorized TV servicer to come out and measure the emission levels
from the WEGA.  Well need I even mention that none of them have the test
equipment to do this and in most cases lack the knowledge.

One of the three servicers appeared to be a little more knowledgeable with
regard to noise generation (A little) and suggested that he may replace the
"D Module and black box" with a real flyback and new D Module board.  Now
this resolution is for a different style of problem but its his best guess.
Sony gave him the authorization to do this when the parts arrive in a couple
of weeks.

Of course some concerns exist in my mind - sort of sounds like stabbing in
the dark.  Moving a home theater system around when the TV alone weighs
between 200 & 300 pounds is no fun HIHI.

73 Look forward to any thoughts.

PeterV [REN]  WB3FSR

Peter D. Vouvounas	Ofc: 732-701-1130
98 Meridian Dr.
Brick, NJ 08724
Mailto: wb3fsr@home.com
InterActive 2way: wb3fsr@imcingular.com