schematic for 1740 vectorscope, convert to PAL

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schematic for 1740 vectorscope, convert to PAL

Post by markaren1 » Tue Sep 11, 2012 2:36 pm

Hi All,

Just been given an older 1740 (not the 1740A) vector scope. Has a Y channel fault, and also NTSC (I need PAL). I believe that there is a combined 1740 series manual available covering both standards and wonder if just the schematic might be available.

Replaced the 3.58 with 4.43 Mhz xtal, and chroma locks OK, so I don't think I am being (too) crazy with hope of converting...



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