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I'm trying to fix a Marshall Valvestate 100R (Item No V100-20-02, VS100R Amp Assy, 230V-50Hz). I can only find the schematics labelled V100-60-02, V100-61-02 & V100-62-02. However, the pcbs in this amp are labelled as V100-60-00 Amplification PLC, V100-61-00 & B65-62-00. Upon checking the "R14" burnt resistor I needed to replace to the V100-61-02 schematic, it was found that it isn't the same "R14" as the schematic, as they aren't connected to the same components. Does anyone have the correct schematics, or know what the differences are?
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What does your R14 connect to?Education is what you're left with after you have forgotten what you have learned. -
On the VS100R schematic there are several R14's
Page 1, to the right of IC6, location F3, R14 100k
Page 3, on the collector of Q6, location E2, R14 10R
Page 4, on the drain of TR1, location E2, R14 22k
On the 8080 / 8100 schematic
Page 1, on the input of IC4, location D5, R14 47k
These may not be the diagrams of your unit, but each individual pcb in hte amp may have its own R14....Comment
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Hey, thanks guys. Upon further scrutiny of both the board and the schematics, I found I was in fact looking at the wrong schematic! I have all the relevant schematics but got them mixed up. I'll keep you posted for anymore questions I have. Thanks for the help!Comment
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