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Loedown · 10 November 2012, 15:08

Only the brave should read on!

A600 rev 2D, perfect picture through scandoubler on VGA monitor. Over coloured picture on composite with picture shifted up and left on screen. No other faults. Crystal checked and definitely PAL

CXA1145 replaced, all caps replaced, resistor networks on RGB in to CXA1145 measured out ok from Q211, Q212, Q213. All voltages the same between a working rev 1.5 on CXA1145. HCT244 both working, Denise resoldered.

All circuitry leading to composite connector ok, cannot test for RF out, no TV and video remote with my folks. VVRef ok, VIO / VID ok.

Cheers.

10 November 2012, 15:08	#1
Loedown Precious & fragile things Join Date: Feb 2009 Location: Victoria, Australia Posts: 1,946	Bastard Fault A600 Composite Video Only the brave should read on! A600 rev 2D, perfect picture through scandoubler on VGA monitor. Over coloured picture on composite with picture shifted up and left on screen. No other faults. Crystal checked and definitely PAL CXA1145 replaced, all caps replaced, resistor networks on RGB in to CXA1145 measured out ok from Q211, Q212, Q213. All voltages the same between a working rev 1.5 on CXA1145. HCT244 both working, Denise resoldered. All circuitry leading to composite connector ok, cannot test for RF out, no TV and video remote with my folks. VVRef ok, VIO / VID ok. Cheers.