How to clean circuit boards on sharp GX -M10

[stereomann]

Bought a Sharp gx m10 off of Facebook for $60 guy shipped it to me but when I got it I noticed it had dead roaches in it
I already removed the circuit boards & cleaned the back shell. What's the best way to clean the boards? To get the roach droppings off i was thinking maybe alcohol let me know what you think thanks

 

[Superduper]

If it’s a hot day, I’ve washed many pcbs outside with a large paint brush, dish soap and garden hose on light spray mode (not jet). Then spray off most water with air nozzle and let dry in the hot weather. In the sun is good. In short order, the board gets toasty and dry. Never had an issue but use your own discretion, the type of parts on the board makes a difference.

 

[Tinman]

You could try CRC or WD/40 electronics cleaner and a soft brush.

 

[AE_Stereo]

With alcohol, some of the printed details on the components and resistor colors may get wiped off.