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Old 6th Feb 2019, 3:36 pm   #9
TheSquirrel
Retired Dormant Member
 
Join Date: Feb 2019
Location: Northumberland, UK.
Posts: 4
Default Re: Microvitec Cub monitor model identification and repair

Thanks again to all for your help. The circuit diagram had pointed me to R235 and possibly D201, but confirmation of those helped enormously.

R235 has gone open circuit. The accompanying diode, D201, appears to function correctly but that conclusion comes only though multimeter resistance and diode checking. The plan is to replace the faulty components and then check around the TDA1170 IC.

The tube is black, as far as I can determine, and the main board includes C225 which is annotated as only being fitted to med and hi res models.
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