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Old 12th October 2006, 03:00 PM   #1
manni is offline manni  Germany
diyAudio Member
Join Date: Oct 2006
Default Lanzar Vibe 1800D Problem, please help!

my car amp is defective, so I need schematics from the amp. or one info: There is a little pcb with the driver transistors and one IC near the fan. I can not read the Type of this IC,cause its burnt. Please give me Informations how to get schematics of this amp or the type (name) of the IC.

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Old 13th October 2006, 04:02 AM   #2
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Join Date: Nov 2003
Location: Louisiana
I believe the IC is an NJM4580.

Schematics are difficult to get. Some manufacturers will provide schematics but the driver board is generally a block with pin-out descriptions.

I've repaired quite a few of these (not lanzar, clones - planet audio, power acoustic...) but I've never seen that IC damaged.

If you need values for any of the components on the driver board, let me know.
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Old 13th October 2006, 02:51 PM   #3
manni is offline manni  Germany
diyAudio Member
Join Date: Oct 2006
Hello Perry,
I'm very pleased about your answer. I think you are right with the NJM4580. I can only see the first 4 and the last D (DIL Case).
Today I've ordered the new components and next week beginns the repairing. Is it true, that the C1027 transistor is not a 2SC1027, but a KTC1027 Type ?

Thank you very very much from Germany!
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Old 13th October 2006, 10:20 PM   #4
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Join Date: Nov 2003
Location: Louisiana
As far as I know, the 2s and kt are 'generally' interchangeable. For example, the KTA1266 and the 2SC1266 are the same.

There are exceptions. The 2sc1027 is a 50 watt transistor while the KTC1027 is a 1 watt transistor.

I think you have to look up both parts and use good judgement when sourcing replacement parts.
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