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Thanks for the responses. I cant really see the resistors color bands since im legally color blind.
Thanks for the responses. I cant really see the resistors color bands since im legally color blind.
The question is not... What are the values of the resistors? The question is... What causes this to happen?
R29 & R30 are notorious for burning up due to poor connection at the edge connector causing the sense circuit to ramp up the power. R7 is burnt because the power was left on when R29 cooked.
The values for these resistors can be found in the Service Manual and the Drawing Package.
R29 = 10 ohm 1/4w
R30 = 10 ohm 1/4w
R7 = 7.5k ohm 1/4w
Thanks for the responses. I cant really see the resistors color bands since im legally color blind.
I can see colors, I just have a hard time telling what some are. For instance, blue/green red/purple.
It looks to me like the original was replaced and a new one was installed. If it was mine
I would shot gun the board. There is posts on this site on how to do this.
The edge connector is usually the cause of this particular burnt up resistor location.
By shotgunning the board, it would allow you to set the main voltage to +5.
Then you don't have to worry about burning up the AR/2 board more,
or burning up the edge connector on that valuable Tempest PCB.