Exposure vii preamp help needed resistor value?

[cartman]

Hi, can anybody help me witn a repair to my exposure vii preamp? I made up a lead to connect it to the power supply from the viii and I must;ve messed up. Right away, smoke and a burned out resistor (I think). The vii is dual mono with two stacked pcbs. The resistor showing the damage is at R77 right by the Power in din socket. The resistors on both boards are blackened so reading values off either is impossible.

Anyone able to tell me the value of these and is this likely to be all that's fried? One channel still works but the resistors on both pcbs are very black

 

[cartman]

I found this on another thread asking the same question. Sadly, I am still not sure what it means. Is it a 27 ohm resistor? I also believe I need a tolerance rating. Can anyone technical explain it in the most simple terms?

"The value of R77 is 27."

"Thank you for your efford, I really apreciate it. I did make measurement across the burnning resistors and they are about 22R. I replace them with 47R and the preamp works fine, no problem so far!"

Sorry I'm such a noob to this!

 

[cartman]

Anyone able to help with this. An answer of a kind is above but I just don't understand what value resistor is described. Can anyone enlighten me?

This previous thread discussed the issue. Can anyone help?

http://www.pinkfishmedia.net/forum/showthread.php?t=14932&highlight=exposure+schematic