"Baron" wrote in message
...
Arfa Daily Inscribed thus:

I'll be in his shop tomorrow. If I remember, I'll ask if he's had
anything else on those. Was there any prior symptoms ? Did it fail
whilst on, or fail to come out of standby. What exactly is the standby
LED doing ? If it is pulsing, have you tried unplugging the backlight
inverter ?

Arfa

Hi Arfa,
It was running just fine, then without any warning the display went off
and the little red standby LED in the middle of the button started
flashing. 3short, delay, 1long, off, delay then the sequence starts
again.

No I haven't disconnected the backlight panel. There seems to be 6 or 8
inverters on a separate panel running vertically up the left side,
viewed from the rear. There is a single multiway cable connecting the
inverter panel to the PSU board. The backlight panel is under a metal
screen, making it hard to see underneath without removing fairly
substantial metalwork.

Thanks:
--
Best Regards:
Baron.

It's only the plug to the inverter board that you need to remove. From the
described symptoms, I doubt that the problem is going to be that, but it is
common for backlight inverters to fail on all makes of LCD TV, and the
excess load then placed on the PSU's 24v rail can cause some odd and bizarre
startup problems, depending on how and where the supply monitors it's output
voltages and the current draws on the various rails. Normally, although the
connector to the inverter board has a lot of wires, most of them are just
paralleled-up +24v and gnd. There is often a control wire also.

I was unable to check further with my mate today, as he is off with man-flu.
The other guy in the shop is more computers than TV, so doesn't know a lot
about TV faults.
Arfa