Chinese AODA
The origin China Manufacturer is AODA
www.cn-aoda.com
look here
Enping Aoda Electronic Technology Co., Ltd
PRONOMIC = old heavy technology from the past
you get for this much EUR SMPS light weight Class H amps
from LEX
Switching Mode Class H amplifier
German Distributor is available for LEX ....
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hi irvynjay and andrewlebon,
pls guide me.
1-when first power up two led's lights on in the driver board,
2-i set dc offset to omv with the 500ohm preset.
3-i set the bias preset to half turn ,
4-protection section working with 12v dc,
-active led is on, when the 12vc power given,
-protection led is on, after relay active the led is off,
-when power off the amp, the clip led is light on and slowly off,
5-i provide signal to the amp, but out signal not comming, what will be the problem?
pls guide me.
1-when first power up two led's lights on in the driver board,
2-i set dc offset to omv with the 500ohm preset.
3-i set the bias preset to half turn ,
4-protection section working with 12v dc,
-active led is on, when the 12vc power given,
-protection led is on, after relay active the led is off,
-when power off the amp, the clip led is light on and slowly off,
5-i provide signal to the amp, but out signal not comming, what will be the problem?
Attachments
Hi andrewlebon,
Thanks for the reply andrewlebon,
i already cut the pin from relay.
hi irvynejay,
i think one of my mje's bad.
now i feed audio and sound is very good. and no heat on heatsink.
output base voltage is 180mv dc, but emitter resistor across in 0v i adjust the preset but nothing happenning,
thanks ,
About bias
which resistor used to across 5mvdc and any other change in your circuit ?
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