Panasonic NV M1 VHS Camcorder - Monk Bretton Priory 

Ah I suspected as much, thanks for confirming. Had the caps leaked and damaged the board at all?

@@nowt1002 The damage to the board is minor; in some places the mask has darkened and corrosion has formed underneath it. To solve this problem, you need to remove the mask, clean and tin the damaged track. This is not as difficult as later cameras with SMD electrolytic capacitors

I'll open it up soon and have a look at it. Hopefully the damage isn't too bad. I had caps leak in an M7 and it had eaten through the tracks causing open circuits. I had to trace where they went with the help of the layout diagram in the service manual and make the connections with wires.

@@nowt1002 It’s interesting that, as a rule, M7 and M9 (I didn’t find any essentially differences between them) are the most reliable of the VHS cameras, and they survive to this day without any problems. In later M10 there also may be problems with capacitors (in the Hi-Fi Stereo unit), in M25, M3000, M3500, M9000, M9500 (and all VHS-C with DL-mechanism) there is increased noise from the video head unit due to dried grease, and also the rewinding or winding weakens due to the stretching of the belt

@BetacamSP that's not my experience of the M7. I've had a few of them and none have been fully functional without my having to do some sort of repair, some I have never got working. Granted the number I have had is only a small sample so perhaps I have been unlucky but I have also had multiple people contact me about problems with them. Mainly either flashing black bars in the image (caused by failed caps on the 9v rail) or non-working power zoom which is caused by the reduction gearbox on the motor seizing up. Perhaps there were changes over the production run or with the M9 that increased reliability though. I have not seen an M9, I don't think they were sold in the UK. The M10 and related cams seem to suffer from poor/no colour on replay. This will be to do with the acc circuit being off frequency but I have not yet looked into it. Also intermittent sound which I think may be caused by the switch built into the external mic socket. I think a lot of the faults with these old camcorders come from them sitting unused for years in places such as lofts and then suddenly being used again, the caps fail.