MPU4 service manual
From TheFnet
Here is the service manual for Barcrest MPU4 based fruit machines available for download - the same one as sold on eBay. I found this very useful when repairing a 'green label' fruit machine PSU.
As a side note, if anyone finds a source in the UK for the bridge rectifiers with wire terminals (at a decent < £3 price) please let me know!