DEFIANT 410X

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To obtain and control the picture on this set,
it is necessary to advance either the brilliance or contrast controls slowly until the correct picture
quality is obtained. If either control is moved past
the correct setting both picture and raster will
disappear.
I have recently fitted a new tube, line output valve (PL36), video amplifier valve and a U191.
The e.h.t. appears to be low. -S. R. Humble
(Morpeth, Northumberland).
Replace the U25 e.h.t. rectifier which is soldered
to the line output transformer. Check V7 (ECL80)
if width is also lacking and the PY32 h.t. rectifier,
if the h.t. voltage is low.

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