04-15-2014 06:10 PM
I was trying to measure the Fan output, due to short between pin1-2 or 2-3.
Board (FPGA and FAN) is no more working.
But few leds are glowing.
I found same case here:
How to fix this?
04-15-2014 06:37 PM
Go through the debug check list for ML605 http://www.xilinx.com/support/answers/40398.html
Check the functionality of each of the interface. This will confirm if the board is working or not.
Question to you:- Was the board not working right from the day-1 or was it working for some days?
04-15-2014 10:32 PM
It was working before.
But after testing FAN (J33) output, (due to short).
1. Fan is not spining.
2. DS30 LED SysAce Err is glowing (not blinking after removing CF).
3. DS1, DS2, DS32 (Power good), DS25 and DS23 LEDs are glowing.
4. DS28 and DS29 LEDs are OFF.
5. IMPACT is unable to detect any device (cable).
04-15-2014 11:19 PM
Firstly since all the powers LED's are not proper, there can be a problem with your power controller. Were all these LED's glowing before the shorting after FAN testing damaged the FAN? Please follow the flow chart given in the ML605 debug checklist for power failures.
I guess you are referring to the J59 jumpers which you are expecting to be shorted as shown in the below schematic scope short.
In case you want to probe the shorts, you can refer to the above schematic diagram.
04-15-2014 11:20 PM
04-16-2014 12:33 AM
The board was working properly.
I was trying to install one more fan at J33 for FMC150 card.
But pins(1-2 or 2-3) were shorted, while measuring output.
Now I checked power supplies:
NO. (EXPECTED O/P) : (MEASURED)
U24 VCCINT(1V) : 0.5mV
U43 VCCO2V5(2.5V) : 0.77V
U91 VCCAUX(2.5V) : 151mV
U35 MGT_AVCC(1V) : 1.02V
U36 MGT_AVTT(2V) : 1.26V
U20 VCO0V5(1.5V) : 1.52V
Since, VCC2V5 is 0.77V, LED DS29 (Reverse biased p:0.77 and n:1.9V ) is not glowing.
And, LED DS28 is not glowing because MGT_AVTT is 1.26V and may be Q10 is not ON!!!
What else should I check?
Also, I'll try to reprogram power controllers.