Appendix 1
– Schematic showing changes
● RED INDICATES CHANGED OR NEW CIRCUITRY ● “X” INDICATES CUT TRACE OR WIRE
Page 1: ...Brightness Control I accept no responsibility in the outcome of your project since you are the one doing it but I am confident that if you follow these directions studiously you will end up with a re...
Page 2: ...ssis lip above but shown in here in Figure 1b Figure 1b Orientation of Breakaway Board On the Breakaway board there are 3 thru hole points A B C in photo below of contact for R84 GAIN and R85 VOLUME 1...
Page 3: ...he via thru hole in PCB as shown in Figure 3 B Cut PCB traces 2 places where circled above and next to terminal C thus isolating this terminal Separate the cut conductors from the rest of the ribbon a...
Page 4: ...free end of the cap and one end of the 10K resistor to Tin each of these leads lay them against each other lengthways and solder them together Slide a 5 8 piece of HST over the resistor and the conne...
Page 5: ...ads together like this and solder them Figure 10b Parallel 01 F Capacitors A B C R85 1 Cut a wire about 4 long Strip 1 16 from each end Connect one end to terminal C of R85 and the other end to the le...
Page 6: ...s of R84 4a Slide piece of HST over the entirety of one lead of the 03uF capacitor pair created in a previous step to cover all but about 1 6 th inch at the end R84 R84 2 Solder the 1 8 stripped end t...
Page 7: ...ront panel 5 Trim the other end of the capacitor pair to reach to the midway point on the bare jumper between J5 pin 5 and J5 pin 11 Slide piece of HST over this lead to cover all but 1 16 th inch at...
Page 8: ...Appendix 1 Schematic showing changes RED INDICATES CHANGED OR NEW CIRCUITRY X INDICATES CUT TRACE OR WIRE...
Page 9: ...1000 10 42 13 52 2000 10 00 14 86 3000 9 08 16 55 4000 8 59 17 51 5000 8 06 18 38 6000 7 50 18 38 7000 6 26 18 38 8000 5 19 17 96 9000 4 40 17 51 10000 Appendix 2 Frequency Response Data 0 00 5 00 10...
