CurtPalme.com Home Theater Forum

[7supersprint]

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Yesterday it worked fine, today it doesn't start up anymore. No light on the tubes, no sound of HV coming up, cooling fans are working.

I have checked the diagnostics leds:

1. The HTHD led is off
2. Scan fail led is on (red)
3. +Conv led is off
4. Other leds on the G2/diagnostic board are green
5. Red led on R7621127 (Sync+ vertical defection board) in on (red)
6. EHT leds are off

Any clue? I have some spare boards to switch but where to start?

Thanks, Roel.

[7supersprint]

Okay, got a bit further...

Switched the horizontal deflection board with a spare and now I have all green lights on the G2 board and no red scan failure anymore. I also hear HV coming on but still no picture and the red led on the sync&vertical deflection board still illuminating.
Switched the sync&deflectionboard with a spare with no success, red led is still on.

Any thoughts how to get on now?

Roel.

[Curt Palme]

Look into the lenses. Do you see a very faint flicker coming from either the very top or very bottom of the tubes? If so, the set is most likely working fine, the red light on the V board indicates that the board is not syncing to an input signal.

What signal are you sending to the projector?

[Curt Palme]

Look into the lenses. Do you see a very faint flicker coming from either the very top or very bottom of the tubes? If so, the set is most likely working fine, the red light on the V board indicates that the board is not syncing to an input signal.

What signal are you sending to the projector?

[7supersprint]

Thanks Curt, up and running again Because of the red led I wasn't shure if putting a signal on it would harm anything but with signal on it is working again.

Many thanks!

Roel.