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I've had this more than once now, so I want to confirm before the customer sends me more stuff.
THe set is an NEC PG or PG Xtra. Fault is a standard F8 error code. The customer sends me the C board, I fix it, test it for 4-5 hours and it's fine. I send it back to the customer. Same fault. The set powers up, shuts down, then powers up again, etc.
My theory is here that the shorted C board loads down the power supply so that it develops a fault. Take out the C board and that unloads the power supply to the point that the set fires up. I now also get the customer to send me the deflection board as well. I just had a customer in Tx that had this, now I've got another customer complaining about the same issue. THe fellow Tx solved the problems by swapping out the power supply.
I want to know if another tech has had this so that from now on I get the customer to send all three parts in. A bit more to ship and a bit longer to test everything, but at least I'll get it right the first time.
Comments?
Oh, and the customer is in the DC area. Hed rather have someone come out and pull the boards and assist than try and do it himself. Is anyone around in the area?
THe set is an NEC PG or PG Xtra. Fault is a standard F8 error code. The customer sends me the C board, I fix it, test it for 4-5 hours and it's fine. I send it back to the customer. Same fault. The set powers up, shuts down, then powers up again, etc.
My theory is here that the shorted C board loads down the power supply so that it develops a fault. Take out the C board and that unloads the power supply to the point that the set fires up. I now also get the customer to send me the deflection board as well. I just had a customer in Tx that had this, now I've got another customer complaining about the same issue. THe fellow Tx solved the problems by swapping out the power supply.
I want to know if another tech has had this so that from now on I get the customer to send all three parts in. A bit more to ship and a bit longer to test everything, but at least I'll get it right the first time.
Comments?
Oh, and the customer is in the DC area. Hed rather have someone come out and pull the boards and assist than try and do it himself. Is anyone around in the area?