Re-check the newly replaced IC according to the diagram I posted. They are easily damaged by heat.
I have installed the last two drivers i had. Both are not working. This time i used speacial solder equipment and was very careful not to overheat. Anyhow, i expect, i received counterfeit parts from ut source. I will order new parts from german seller.
Thanks a lot for assistance.
Achim
Thanks a lot for assistance.
Achim
So, continue. Got the parts, but another problem. Amp is not powering up. Found, that on the Driver Board for Power supply on VCC is only 2,3V. If i connect 12V on that pin amp is powering up and power supply is working. During that condition i checked audio driver board and now on both irs8442 i got only dc. But thats later. Where i have to look, to got 12vdc on that VCC Pin?
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Do you have 12v on the center terminal of the header for the driver board?
Does the collector of Q6 connect to pin 12 of the 494?
Does the collector of Q6 connect to pin 12 of the 494?
Hello,
i have +12V , Minus on earth and + 12V on REM. There is no connection between Q6 Collector to pin 11 of 494. (2,5kOhm)
i have +12V , Minus on earth and + 12V on REM. There is no connection between Q6 Collector to pin 11 of 494. (2,5kOhm)
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Pin 12 of the 494, not pin 11.
Which pin if the header for the driver board connects to the emitter of Q6?
Which pin if the header for the driver board connects to the emitter of Q6?
If you have 12v on that header pin and the emitter of Q6, is the base of Q6 about 1/2v lower than the emitter of Q6?
Its Marked with BE, i expect BCX55 from Galaxy Electric. Don´t have that size and type, can i try a standard NPN?
should i order some parts more, which often will be damaged on the driver cards?
I have now: IRS21844s
Lm211
MMBTA42, 92
ESG1
I have now: IRS21844s
Lm211
MMBTA42, 92
ESG1
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