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graham milnes
Joined: 27 Feb 2006 Posts: 1
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Posted: Mon Feb 27, 2006 6:11 am Post subject: Sony KV-29K5U Standby LED Flashes 5 x |
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Hi,
I have a Sony KV-29K5U to repair. When it is switched on from standby a relay clicks, the sound is ok but no picture. EHT is present and remote control works. After a minute or so the standby LED starts flashing 5 times in between pauses. Another 2 minutes and the picture comes on with poor definition and very rich colour. Can't select brightness or colour on screen menu, only contrast is available. Does anyone know what the 5 flash code means or has anyone found a similar fault?
Thanks _________________ Graham |
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gary
Joined: 05 Apr 2005 Posts: 584 Location: MANCHESTER, uk
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Posted: Mon Feb 27, 2006 5:21 pm Post subject: |
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5 flashes on this set is an auto grey scale error, check setting of a1 control, tubes seem to be failing in these sets earlier than i would have expected. |
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Guest
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Posted: Tue Feb 28, 2006 4:02 pm Post subject: Sony KV-29K5U Standby LED Flashes 5 x |
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What is "a1", can't see it on cct diagram? |
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gary
Joined: 05 Apr 2005 Posts: 584 Location: MANCHESTER, uk
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Posted: Tue Feb 28, 2006 5:07 pm Post subject: |
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a1 is also known as screen voltage or g2 voltage, it is an adjustment on the line output transformer. |
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