schematic for 1740 vectorscope, convert to PAL
Posted: 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...
Thanks,
Mark.
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...
Thanks,
Mark.