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papalek
Joined: 08 Mar 2006
Posts: 1536
Location: Longs SC
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| Posted: Wed Feb 13, 2008 3:17 pm Post subject: Barco problem AGAIN. |
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The barco 801s Retro that blew out 4 boards back in november is messed up again. After getting it back working,I tried it out several times over the course of a week and had no problems. The guy was going to be moving the unit so he had me hold onto the PJ part till he moved the cabinet. I took the unit out of the cabinet so I could take it home for repair.
Well he finally called and said he was ready. I carried it over to his house and re assembled it. It was rather cold outside and it took about an hour inside to get everthing set back up. It may have had some condensation in it because as soon as I hit the power button it made a snap noise and would not work. I have no HV and the red LED is lit plus two of the yellow ones are out. The green power light stays green but no fans turn or anything else. I took the power supply home and checked all the fuses and found one blown. I took it back the next day and tried again. I have replaced it several times and as soon as you hit the power button it is blown again. There is no snap noise or anything like the first time it just blows the fuse and and the LEDs are as they were when it first blew.
The fuse that is blowing is on the left of the SMPS were there is 4 fuses,one on top and three under it. It is the middle one of the three. What could be causing this to blow? What does that fuse control?
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My current list of PJ's AmPro 1 1/2-4600,4200, 1/2-3600,2600.
I do love my AmPro's
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Wed Feb 13, 2008 4:04 pm Post subject: |
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F204 is for +30V line, measure if smps C209 is ok.
Only vertical deflection board use 30V line...
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papalek
Joined: 08 Mar 2006
Posts: 1536
Location: Longs SC
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| Posted: Thu Feb 14, 2008 10:02 pm Post subject: |
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Ok
I brought the power supply home and checked it out,replaced the fuse and popped it into my Retro here at the house and it fired right up. So now what board is causing it to blow the fuse in the other one?
_________________
My current list of PJ's AmPro 1 1/2-4600,4200, 1/2-3600,2600.
I do love my AmPro's
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Fri Feb 15, 2008 9:20 am Post subject: |
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| papalek wrote: | | So now what board is causing it to blow the fuse in the other one? |
Probably vertical deflection board +30V line have short.
Could also be mobo or focus board, but quite unlikely.
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