Ok, Now I have done some checking on the this top LED. My LED was dead and replaced it with a green LED that I tested was ok at 1,8V. Still no light from the LED. I did test it with a voltage of 1,8V which is what I get from those pins where it is connected. I tried with a blue LED but it started to light up at about 2,2V so I didn't go for it.

I get 1,8V when I insert ie the connector for 7210 which has Vpp in the connector to pin 8 on RJ-45. There I have 1,8V on pcb but on LED 1,7V and no light.
I then exchange it to another which I test got light at 1,7V outside the box, but no luck there either. Now the voltage drops to 1,4V.
The same LED connected directly to pin 7 and 8 of RJ-45 on pcb gives 1,5V.

VBat on pcb is still 3,9V at this test.

How to get this LED to light up?

To me it looks like this is only to indicate that there is Vpp voltage present. Got hold of a schematic but don't know the official statement of spreading it around. So before publishing I would like to know if it is meant to be spread or not.

//Niclas

its happend with me befor

check this out

Check what out??

//Niclas

under "check this out " did u c "blue-led.gif" ?????

thanx

Now I do :)

i hop its help :wink:

Hi again
Do you have the top led working? When is it intended to light up? I have never seen this and I have tried it with a verified cable for the 7210 with Vpp connected.

Flashed a 7250 successfully without the led installed also.

Also, the blue leds that I have doesn't light up until it reaches atleast 2,2V from a regulated powersupply. This makes it more strange in my eyes since I only get at the most 1,8V from the pin on the RJ-45 on PCB. That is meassured directly without any load at all. When using either the resistor alone or with the resistor and led I get 1,6 at the most.

//Niclas

Hi Nic

i remove the top led from most of my box's ,becose its burn some resistors , and the most complaine i hear about liike what u said 7210
causing some proplems like dct4 phones can't power on when it connecting 2 the box.when i start 2 remove the top led or just cut it from
"+" area every thing go so good , and no budy complaine about this proplem again.

:)

none of myleds work whats wrong?
I just got my griffin today.

ok when i connext pwr sipply instead 9 volt battery I get 2nd and 3rd (bottom) led to be on top led is off, griffin box states box not found?
pse help!
red led on
orange led slow flahing

blue-led.gif ? what :?:

all ok my griffin works

thx for the info

This problem happened to my Griffin box.
I fixed it by removing the led completely out.
Now almost 1 year working like that and since
then I have no problem with my box.