[DMcMahon]

After repairing the 3 tracks now have good left and right pre-amp outputs, but still no VU meter indications.

Checked out some of the connections that the severed tracks went to, one of which was a leg of the Bias Oscillator transistor, so was hoping that the Bias Oscillator would now work but it is still dead. Will investigate this once I have sorted the Playback and Record amps.

Found that the left channel VU meter not working was due to another crack in the board breaking a track that carries the VU meter calibration/gain pot (R154) wiper out to the VU meter. This crack was close to the other crack previously found (actually a continuation of original crack). For some unknown reason had problem getting good continuity across the latest repair to this track so ended up bypassing the track with a wire.

Now have good left channel VU meter operation.

The right channel VU meter not working is due to the pre-amp signal not reaching the VU meter, which only leaves the connections through the relevant switch section of the Record/Play switch, so will check that out next.