The subject unit has no high voltage but it pulsates when I
try to turn it on. Does anyone know where I could get a
schematic and parts. Will really appreciated any and all
inputs. Willy :(

I have the exact symptom and need a schematic.
Plan is to disable monitor/high voltage and use external monitor.
DML

Excellent idea DML, as long as the output of the flyback only
provides voltage for vertical deflection and nothing else..
Thank you very much for your response Willy

Here is a manual if anyone needs one.

http://scorpiontheater.com/lorex.aspx


http://lorexstore.lorextechnology.com/pdfs/SC21CD5444UQ-A80_FAQ_EN_R2.pdf


http://sentinelcctvstore.lorextechnology.com/product.aspx?id=1244&nav=2