Marshall Bluesbreaker II blown, need help

[xnery]

I have a Marshall Bluesbreaker II pedal that a friend of mine blew with the wrong adaptor. D1 and R32 (located next to the adaptor jack) are charred black and cracked in half. Does anyone know what the values of these parts are?

Thank you.

[flo]

I do not have the original schematic so alas the part numbers tell me nothing.

Diode is probably there to protect against reverse voltage. Any from the 1N400x series is ok.

Resistor:
No idea. Where is this resistor located? Is it in series with that diode? Where is the other end connected to?
Do you think it's one of the Vbias voltage divider resistors? If so, measure the other one and use the same value.

[xnery]

One end of the resistor is connected to the blown diode, the other end appears to go to the first of the two matching resistors.

The blown resistor is the closest one to the adaptor jack, if that helps.

I was looking over a schematic for the Marshall Jackhammer pedal, and they had two resistors on that schematic that look like they might be the parallel of the blown resistor in this Bluesbreaker II (if they are similar circuits). The two values were 41k and 47k. That might work or be close enough.

Thanks for the input.

[composition4]

Hi there,

R32 is in series with +9v and is  47 ohms (not 47k).  D1 is 1n4004 (rev polarity protection as mentioned above), so you should be alright to replace it with any 1n400x.

Thanks
Jonathan