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What year is my BC rich mockingbird serial 3 10866, I have looked everywhere.
When distribution came back to B.C. Rich in 1974, a system of serial number coding began using a 5-digit code (XXYYY) with the first 2 digits indicating the year and the last 3 indicating the production number. That would make the first guitar of 1974 to have been numbered 74000, followed by 74001, 74002, 74003, etc. Throughout the '70s, production numbers were low enough that the serial numbers pretty much reflect the year of manufacture.
on Jul 16, 2019
I need to know the value of the Resistor "R1" in
Let us use a bit of logic to resolve this... I have an Axiom but it would be a lot of screws to take out to get to the part... so let us think about this. The resistor value starts with a "1" and we know it is 5% tolerance (gold). we know the resistor burnt up with likely 5 volts on it... Value could be 1000 ohms, however the voltages present (12 volts max) would NOT have burned up a resistor of 1000 ohms. The USB area is mostly 5 volts and across 100 ohms is only a quarter watt... not enough to really burn up a resistor... First thing is to MEASURE that the resistor s open... in spite of being burned, it MAY still be OK... these resistors now usually either open or remain close to their value. The resistor ALSO may be a fusible resistor intended to act as a fuse... Is the resistor open or not? is it near a resistance with a "1" as the first digit? If it is not open I suspect it is not all of the problem. In that case, look for a burned circuit trace on the board. If it is open, then MEASURE the voltage across the resistor with the power applied. If you find 5 volts, then it MIGHT be a 10 ohm used to limit the USB current to 500ma. Get back to me with your findings... I have unraveled many of these things...
on Jun 25, 2019
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