Im a Technician I got Sansui STY02503D almost new just worked for a week and went on Standby ie blue light is seen,if press the ON button it comes to yellow but no posting on screen, I opened and checked any loose connection and dry joints but none of the suggested solutions assited me. After the ON BUTTON is been pressed i can here the relay switch at the power supply to be ON but after some seconds it turns OFF. At this stage its when i see flashing light at tha interface board Guys what coul be the symptom cause of this other problem please assist Regards Benjamin
SOURCE: Hi, I own a Sansui HDPDP4200 42 inch Plasma and
We are having the same problem with ours, the power won't turn on with remote or button on TV. Advice on here was leaking capacitator needs to be replaced. We haven't had it repaired yet but figured I would pass this along to you.
SOURCE: recently my 42 inch sansui plasma has refused to
I would look for a power supply from discount-merchant.com or shopjimmy.com if you can't find then repair the ps, look for bad caps bulging or open and ousing out.
SOURCE: I have a Sansui SV2960
This is a common fault as the set on ageing deteriorates in the connections. There is a high possibility that the components over a period of heating and cooling, tend to bring on a problem of dry soldering. So my advice is to check the set for some loose joints that have played on to give you these erratic shut downs or poor performance. The best way to check for loose connections is to tap lightly when the set is powered on , If there is change while tapping then it seems that there are DRY solder joints. Remove main plug, the covers - with caution of high voltage, check for dry joints, use a good soldering iron to solder all suspected points. Sometimes the fault occurs when the set warms up, if so you can simulate the heat using a hair dryer on the suspected areas, try with the power supply, distribution, Processor controller, driver controllers on the A/V related sections. Also the use a FREEZE-IT spray can simulate the components to cool and show up the fault. Based on the above method you must be able to locate the area of fault and solder the sections. Sometimes large IC's- ones with more pins- tend to have drying in some pins and so cause faults related to the IC's protocol. Have a rough idea of looking into the areas to reduce the time of probing. Check for tips to look into the SMPS unit: http://www.fixya.com/support/r5826301-working_switch_mode_power_supplies
Testimonial: "Excellent advice. Thanks "
sounds like bad capacitors on the power board. Very common problem. I would look at the caps if any appear even slightly rounded on top they are bad. They should be perfectly flat on top any puffing up means replace that cap.
SOURCE: My Sansui HD LED TV cuts the border of my frames when I connect my PC
To fix this go into your screen resolution settings on your computer while connected to your TV. Start at the highest possible resolution and keep moving down 1 setting at a time until you get to a setting that fits the screen perfectly.
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