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Hitachi 50FX18 AP62 no video    
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David
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PostPosted: Tue Jul 10, 2007 11:03 am    Post subject: Hitachi 50FX18 AP62 no video Reply with quote
Set has no video , faint image on red and green tube , nothing on blue .( just have chassis , not screen ) replaced IC 501 ( RAINFOREST ic )2 transistors on CRT board to get the washed out image on the tubes. With internal service switch pushed , crosshatch OK on all 3 tubes . No aparant video from video sub board ( ic 501 ) but all volts seem OK . OSD samething on red and grn. only , with screens turned up to point of retrace all inputs same. Sub board NLA . Any thoughts on his please.
David
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John
Guest
PostPosted: Tue Jul 10, 2007 11:03 am    Post subject: Reply with quote
Know problems with IC5A4, 9v reg. on signal pcb. and Caps CN05 and CN06. Do
not remember where caps are.
These problems cause video to get lost in some buffer transistors.

Good Luck, John
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