[DMcMahon]

New components arrived today so fitted.

3 x 0.1uF, 2,000VDC Poly capacitors, C306, C312 & C313, had to move a couple of the capacitor mounting terminal posts, as the new radial capacitors leads would not quite stretch across.
27k resistor to replace open circuited R312
18K resistor to replace open circuited R304
2 x 680k resistors to replace open circuited R306 & R313

Also replaced R303 18K, which measured 20k but looked very poor condition.

Also replaced R307 & R314 680K, which measured > 720K, but looked very poor condition.

Seem to have mislaid the ITT TV20-16K80V high voltage diode (in MR 304 position) that was removed during clean up, so fitted an original K8/50 that I received from buggies (George).

Started to check the push on spade wiring connections to this board and have got a bit confused as some of the wire number and connection references for the CRT connections do not appear to agree ? While checking this found some more differences between the board and the manual documentation.

The board has 2 terminals identified in the board component layout drawing as 14 but only one 14 is shown on the schematic which is the earth rail. The two 14 connections on the board are not connected together, which means that some of the components shown in the schematic connecting to earth, do not actually connect to earth, namely R312, C310 & C307. R312 for example only connects out to terminal 15, this being the same terminal that R304 connects out to (R304 previously being a mystery until its value was identified by George). Because of the confusing wiring connections (in the documentation) have not yet identified what terminal 15 connects out to.

Also see that the component layout drawing shows 9 terminal connections at the top of the board, while my board only has 8 terminals, luckily there are only 8 wires at the top section (plus one that solders to the board).

Could not find a suitable replacement for failed C304 8uF 450V so have ordered a couple.