TV fault - green hue

[tony sayer]

In article , T i m writes

Reckon its about time you took it to the vets:-(.....

[N. Thornton]

easy diy job if you know basic tronics.

If you mean smear horizontally, the tube has been reactivated at some time, and this occurs when the red gun is driven to its emission limits. The solution is to boost the heater voltage by say 33%, solves it for many years.

sounds like HT or EHT arcing somewhere. Probably the LOPTF or LOPTR, or something in the PSU, maybe the TF or power IC. The LOPTR can be tested out of circuit to see if its shorted C to E. The PSU can sometimes be tested by removing the TV load and putting a dummy load on it, like a light bulb. To do that you'd need to defeat the shutdown protection stuff, as generally the PSU monitors the LOP area of the TV and shuts down if it detects overcurrent.

Regards, NT

[Dave Plowman]

I never hide it - rather pointless. ;-)

The G6 was my first colour set, rented from a local company then bought from them when they gave up. Then heavily modified by myself and a couple of BBC pals.

A 28" Matchline version of that replaced the G6, and is still in use in the spare room. It's a fairly late model with the full SMPS which occasionally shuts down, and defies attempts to find the fault. Repair kits for this sometimes come up on Ebay, so I'm still looking.

It was piggy-backed onto an order of some 40 monitor only versions bought by Thames TV for the first series of Strike it Lucky in the '80s, and it's not that long ago they were thrown out, so a pretty impressive life for a domestic set bashed around in the studios.