TV Repair Questions? Ask a TV Technician for Answers ASAP
Hi Anthony, this is the second board i ordered and both have the same symptoms, and both ebay sellers have money back guaranty reburbished and will accept returns... how can both boards be DAO... can i get a brand new from sharp?
ok, black is ground/chassis
red no voltage
yellow no voltage
green no voltage
brown no voltAGE
orange i see 5 volts.
i assume red should have at least 12 to 24 volts, since the output caps are rated for 50 volts.
my thought is
1) the mainboard(av connectors) sends the signal to turn on the output stage of power supply, which is not happening OR
2) i have another DOA power supply board.
Here is the s/n numbers of the original board:
silkscreened on board: 491A014G1400R
NUMBERS ON STICKER:
H 795951400500R H9B50AAL11GR 1142 (E1)