Shell

iTech 6000 fault lights

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Shell    0

Hi,

Can anyone help me with this iTech 6000 ?

Every time I power the amp both fault lights light up & the LCD display turns on & then off in less than 1s. Power switch light works.

All output mosfets are OK. It seems to be the main power supply!

I don't have the schematics!

Thanks.

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joust    0

Power down and discharge the main HV rails; Discharge the HV using a 20R 20w resistor (suggestion) between the bleu and red leads on the main smps to bca rails cable. Remove the bca side connection. Power up: if the amp boots up you have an output issue; if the amp still is still problematic, then the smps might be suspicious.

You may have an amp with an old 50p connector, between main bca module and input module. Replace this cable.

Has this amp had a recent output failure? Make sure that the heatsink and emi insolator is not damaged. The open aluminum area carries HV! And should not make contact with the chassis.

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Shell    0

Hi,

With the connector in place I have about +160V & -160V from the SMPS and with the connector removed the amp boots up and I have about +185V & -185V from the SMPS.

I have to check the outputs to see what I can find.

Thanks for the tip. Best regards.

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