Question about Ps Televison & Video
Visio TV Model, E390i-BO Power supply board, 0500-0614-0420 Mother board board, 3639-0142-01504A No power light or nothing, the TV is completely dead. Checked the ceramic fuse, it was good. Note there were no changes in the readings after pressing the power on button to the TV on. With the power connected, I checked all voltages at the power supply and at the main board. I've listed those readings and there descriptions below. Power Supply reading, Pin # & Description, Mother Board reading, as follows. 9v DC, #1. 19Vab, 9v DC, 9v DC, #2. 19Vab, 9v DC, 0, #3. G, 0, 0, #4. G, 0, 0, #5. G, 0, 32v DC, #6. PS on, 32v DC, 0, #7. Blu on, 0, 8 to 13v DC, #8. P dim1, 4 to 9v DC, 8 to 13v DC, #9. P dim2, 4 to 9v DC, 6 to 10v DC, #10. P dim3, 4 to 9v DC, 3 to 10v DC, #11. P dim4, 4 to 9v DC, 8 to 10v DC, #12. P dim5, 4 to 9v DC, 1.8v AC, #13. P dim6, 1.8v AC.
Posted by Anonymous on
If the power supply is good then your motherboard must have gone bad during a surge.
Posted on Dec 27, 2009
Testimonial: "Thanks for the quick response!!"
If you have a service manual, please match the voltages as per that and problems might be in areas where these do not match. But read on what condition these voltages are to be checked, this is usually written in a service manual, i.e, without any signal or feeding some signal etc.
Posted on Aug 06, 2012
You can look at the various module failure symptoms and service / replacement options for the L42HDTV10A here:
Posted on Apr 25, 2013
bad power board
Posted on Dec 11, 2015
Testimonial: "Ordered a complete set( main,power and logic board) for just about $30 dollars more than just power board. Waiting for it to arrive to see which component is bad. Will inform @ later time"
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