Subject initiator:fariborzjadidi       Replies:0       Published on:2015-07-05

Legends: ZTE engineer:Administrator
Subject:  zxd2400 v3.0
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fariborzjadidi

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Registered on:2015-07-05
zxd2400 v3.0 (Published on:7/5/2015 1:29:22 AM)

HI to all dears

I have a zte rectifier ZDX2400 V3.0 that damage boost mosfets VT1 and VT2 on main board power .

and damage any op-amp and PFC PWM D1 uc3854 in PCTL board . 

I think this happen because return high voltage via mosfet gates to 15 v VCC PCTL supply.

now when connect power to input, close inrush relay in input and 420 V dc on capacitor booster but no output . turn on LED "IN" and "ALM" in front panel .

no body any idea ? 

thanks

jadidi






 
Subject:  zxd2400 v3.0
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