| onarush |
| Hi everyone I'm kind of new in this forum but it really seems like a great community, i was hoping you could help I'm searching for the schematics for a Lanzar la670 250w x 4 amp, i would really appreciate if anyone could help me, thanks in advance to whom might help. :D |
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| Perry Babin |
Lanzar or Legacy?
What's wrong with the amp? |
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| onarush |
| it says legacy and it has 2 blown transistors but i don not know which transistors should i use and they me that if it was possible to get schematics so that i put on the right transistors, ps sorry for my English |
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| Perry Babin |
I don't have the schematic.
What are the numbers on the blown transistors? |
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| onarush |
| the transistors are so burned that they don't have any numbers there are 4 transistors 2 of them blown but I really don't know if there the same transistors |
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| Perry Babin |
| If the center leg of the 2 un-burned transistors goes to one primary winding of the transformer and the center leg of the 2 burned transistors goes to the other primary winding, they are the same part number. You need to replace all 4 of them. |
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| onarush |
| ooh ok, I will try that today, I will let you know my results, really thanks for the and specially the fast reply, I'm kind of a noob in repairing amps so really thank you for the help one more thing I noticed I has thermal compund but it is old I should replace it right?, by the way I'm loving this forum |
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| Perry Babin |
| Yes. Remove all of the old compound from the transistors and the heatsink and apply new compound. |
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