Thread: Portacolor Question
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Old 06-10-2015, 08:24 AM
DaveWM DaveWM is offline
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Join Date: Feb 2009
Location: Orlando FL
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in this order

check the line voltage, make sure the B+ supply is good,try new HV (horz out/damper/hv rectifier) tubes.
replace the boost cap (white ceramic tube .1 1kv).
check the resistor value in the Horz out tube screen.
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