Hi,
Having messed about replacing the numerous IGBT's on both Y-Main (2 repair kits) and X-Main IGBT's which constantly blow, I decided to buy replacement secondhand boards to replace both Y and X Main. I saw the screen come up for a second or so in various colours and sparkles before pop, all four IGBT's on the replacement X-Main have blown.
Could the panel be a fault? Is there a way to test it?
PSU has been bench tested with dummy load across Vs.
Vs=213v and Va=57v, all other rails are also there, 15v, 5v etc.
Y-Main buffers tested with no s/c.
Any help appreciated.
Thanks.
Having messed about replacing the numerous IGBT's on both Y-Main (2 repair kits) and X-Main IGBT's which constantly blow, I decided to buy replacement secondhand boards to replace both Y and X Main. I saw the screen come up for a second or so in various colours and sparkles before pop, all four IGBT's on the replacement X-Main have blown.
Could the panel be a fault? Is there a way to test it?
PSU has been bench tested with dummy load across Vs.
Vs=213v and Va=57v, all other rails are also there, 15v, 5v etc.
Y-Main buffers tested with no s/c.
Any help appreciated.
Thanks.
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