this tv is know repair found fuse resistor 0.47/.25w was under a e/wcoil.
was replesed ans after this tv still no work all voltage in ps was pumping(UP AND DOWN) find L837 IS SHORT(width) put not the same and hori and vert was changed by service.
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entering service;push service botton (in front panel 4 time and in 1sec push OK in remot.
willyam1