MANUAL CONTAINS THE BASIC INFORMATION NEEDED TO ASSEMBLE THE KIT, BEFORE STARTING IT S A GOOD IDEA TO GATHER AS MUCH INFORMATION ON

Transcription

1 KIT M AN UAL

2 INTR OD U C T I ON BUILDING YOUR KIT WELCOME TO THE KIT MANUAL FOR ASSEMBLING THE 7-75 DIY KIT. THIS MANUAL CONTAINS THE BASIC INFORMATION NEEDED TO ASSEMBLE THE KIT, BEFORE STARTING IT S A GOOD IDEA TO GATHER AS MUCH INFORMATION ON THE BUILD AS POSSIBLE. SEARCH FORUM THREADS FOR THINGS THAT BUILDERS BEFORE YOU MIGHT HAVE ENCOUNTERED AND SOLVED. THERE S NO REASON FOR YOU TO SOLVE WHAT SOMEONE ELSE ALREADY HAVE FIGURED OUT! IT S ALSO A GOOD IDEA TO READ THROUGH THE OLD SERGE INSTRUCTIONS, FOUND HERE BEFORE STARTING. A FEW POINTERS BEFORE STARTING:, MODULES ARE NOT CONNECETD. SO THEY CAN BE TESTED INDIVIDUALLY, BUT IT ALSO MEANS YOU HAVE TO RUN POWER WIRES TO EACH AND EVERYONE, POWER IS APPLIED TO PADS W, X, Y, Z. AND WIRES HAVE THE FOLLOWING

3 STANDARD: W, GND (BLACK) X, +V (RED) Y, +6V (GREEN) Z, -V (WHITE), RESISTORS WITHOUT SUFFIX IS OHMS, SO 5 IS 5 OHMS. IF IT S A PREFIX IT S 0.x, SO u IS 00n. 4, MAKE SURE EVERYTHING WORKS BEFORE PUTING ON THE PANEL! NO REALLY, MAKE SURE IT S 00% OPERATIONAL BEFORE FINAL ASSEMBLY. EVERYTHING CAN BE TESTED WITHOUT MOUNTING THE JACKS. USE CROCODILE CLIPS AND RESISTOR LEGS AS PATCH CORDS IF NEEDED. 5, BE CREATIVE! THE COLORS FOR KNOBS AND JACKS ARE JUST SUGGESTIONS. IF YOU FEEL LIKE DOING A YELLOW/PURPLE/ORANGE COMBINATION INSTEAD, PLEASE DO. DON T LIKE THE KNOBS? CHANGE THEM! NOTHING IS SET IN STONE, IT S UP TO YOU TO SHAPE THIS TO THE INSTRUMENT YOU WANT TO PLAY. A GOOD LOOKING INSTRUMENT PLAYS BETTER THAN AN UGLY ONE. 6, TAKE YOUR TIME, HAVE FUN! NO REASON TO STRESS AND MAKE ERRORS JUST BECAUSE YOU WANT TO PLAY. THE JOURNEY IS MORE IMPORTANT THAN THE DESTINATION. Jon, 7-75.com

4 OS C I LLATOR BOM 4k k Qty Value k p 8k 47p 00k 8p 5 0k 0n M 7n M5 4u7 M 47u 4M7 5k TRIMMER 4 5k LINEAR POTENTIOMETER N448 N904 LM k 5k k k k

5 TRIM INSTRUCTIONS THERE S THREE TRIMMERS FOR THE OSCILLATOR. TRIMMER, INITIAL OFFSET. SET FOR DESIRED LOWEST FREQUENCY. SUGGESTED 5-0Hz. TRIMMER, RANGE. ADJUST FOR SPAN OF 5-0Hz TO 0-4kHz. TRIMMER, SINE ADJUSTMENT IN SAW TO SINE WAVESHAPER. ADJUST FOR CLEANEST POSSIBLE SINEWAVE OUTPUT. BACKSIDE OF CIRCUIT BOARD

6 OSCILLATOR SCHEMATIC

7 TRI PLE BOM Qty Value 00p 470n 47u N448 LM900N 0 6 k 0k 50k 9 M5 5k TRIMMER 5k POTENTIOMETER WAV E SH AP E R

8 TRIM INSTRUCTIONS THERE S ONE TRIMMER FOR EACH SECTION OF THE TRIPLE WAVE SHAPER. ADJUST THE TRIMMER (WITH THE INPUT PUT TURNED FULLY CLOCKWISE) SO THE OUTPUT AMPLITUED IS THE SAME AS THE INPUT AMPLITUDE. BACKSIDE OF CIRCUIT BOARD

9 TRIPLE WAVE SHAPER SCHEMATIC

10 PEA K BOM Qty Value 0 N448 N904 N906 5 k 5k 50k 0k AND T ROU GH

11 PEAK AND TROUGH SCHEMATIC

12 TRI P LE COM PARATO R BOM Qty Value 00p 470n 47u N448 LM900N 0 6 k 0k 50k 9 M5 5k TRIMMER 5k LINEAR POTENTIOMETER

13 TRIM INSTRUCTIONS ONE TRIMMER FOR ALL THREE COMPARATORS. INPUT A SAWTOOTH 0-5V, ADJUST FOR 50% PULSWIDTH WITH POT AT NOON. BACKSIDE OF CIRCUIT BOARD

14 TRIPLE COMPARATOR SCHEMATICS

15 D UAL PROC ESSOR BOM Qty Value 4 0n 4 N448 4 LM k 00k 0k 8 5k LINEAR POTENTIOMETER

16 DUAL PROCESSOR SCHEMATICS

17 GAT E BOM 5k TRIMMER k LINEAR POTENTIOMETER Qty Value 0p 0n 470n N448 LM07 CA080 N906 0 k k 5k 4 k k 68k 4 0k (TL07)

18 TRIM INSTRUCTIONS INPUT A AUDIO SOURCE INTO AC-INPUT. SET TO CENTER. MONITOR OUTPUT AND ADJUST AND FOR SAME OUTPUT AMPLI- TUDE AS INPUT. INPUT DC SOURCE INTO DC IN. ADJUST FOR MINUM OUTPUT OFFSET. BACKSIDE OF CIRCUIT BOARD

19 GATE SCHEMATICS

20 RING MOD U LATOR BOM 5k TRIMMER k LINEAR POTENTIOMETER Qty Value 0n 0p 470n N448 LM07 CA080 N906 0 k k 5k k 4 47k 50k 4 0k 68k (TL07)

21 TRIM INSTRUCTIONS START BY SETTING TO CENTER POSITION, SET TO FULL CCW. INPUT A 500Hz SAWTOOTH, INTO X AND PAD A. ADJUST FOR A SYMMETRICAL OUTPUT. A DISCONNECT SAWTOOTH FROM X. ADJUST FOR MINUM FEED THROUGH. REPEAT ADJUSTING NOW THAT IS SET. CONNECT khz SAWTOOTH TO BOTH X AND Y. ADJUST FOR A SYMMETRICAL OUTPUT. BACKSIDE OF CIRCUIT BOARD

22 RING MODULATOR SCHEMATICS

23 PRE AMP & REV ERB BOM 0k k Qty Value 470k 00p 6k8 0n 0p 5k LINEAR POTENTIOMETER 0n n RCA CONNECTOR 47p 6 u N904 LM458 LM900 N k 0k 50k M

24 REVERB SCHEMATICS

25 PREAMP SCHEMATICS

26 POS ITI V E BOM Qty Value 00p 470n 47u N448 LM900N 0 6 k 0k 50k 9 M5 5k TRIMMER 5k POTENTIOMETER SLEW

27 TRIM INSTRUCTIONS PATCH BOTTOM PULSE OUTPUT TO INPUT FOR CYCLE ACTION. ADJUST TRIMMER TO TASTE. ORIGNAL TRIMMING IS MAX FREQUECNY OF KHz FOR TOP SLEW AND 500Hz FOR BOTTOM SLOW. IT MIGHT BE PREFERABLE TO SET THEM TO THE SAME FREQUENCY THOUGH... BACKSIDE OF CIRCUIT BOARD

28 POSITIVE SLEW SCHEMATICS

29 NE GAT I V E SLEW BOM M k TRIMMER Qty Value 4 5k LINEAR POTENTIOMETER 0n 0p 0n CA086 LM k7 4 6k8 6 0k 4 8k 4 k 00k 6 0k 0k 8 470k 80k

30 TRIM INSTRUCTIONS PATCH PULSE OUTPUT TO INPUT FOR CYCLE ACTION. ADJUST TRIMMER TO TASTE. ORIGNAL TRIMMING IS MAX FREQUECNY OF KHz FOR TOP SLEW AND 500Hz FOR BOTTOM SLOW. IT MIGHT BE PREFERABLE TO SET THEM TO THE SAME FREQUENCY THOUGH... BACKSIDE OF CIRCUIT BOARD

31 NEGATIVE SLEW SCHEMATICS

32 EN V ELOP E BOM 68k k Qty Value k 00p k 0n 5 00k 0p 0k p 7 470k 470n M M5 6 N448 6 N904 0k TRIMMER LM900 5k TRIMMER N k M k k 6k8 5k 7 k LINEAR POTENTIOMER

33 TRIM INSTRUCTIONS PATCH END TO START, SET RISE AND FALL CCW. ADJUST UNITL YOU HAVE 4.00V AT PIN 0 OF THE BOTTOM LM900. PLUG A GATE OUTPUT INTO THE HOLD WHILE THE ENVLOPE CYCLES. ADJUST SO THE OUTPUT IS STABLE PIN 0 BACKSIDE OF CIRCUIT BOARD

34 ENVELOPE SCHEMATICS

35 POWE R BOM SU P P LY FOR A SLIM VERSION OF THE PSU Qty Value OMIT EVERYTHING BUT THE POLAR- 00n IZED CAPS IN THE +V AND -V u SECTION. BRIDGE MARKED PINS ON 4 0u THE REGULATORS. AND REPLACE THE ±5V DC-DC CONVERTER WITH A ±V 6 N4004 INSTEAD. THE +6V LINE CAN BE RUN LM7 WITH A MUCH SMALLER HEATSINK LM7 THAN SUGGESTED, SINCE CURRENT 00nH CONSUMPTION ON SAID LINE IS VERY LED S4DE50R5PDFA BUILDERS CHOICE. LOW. ADJUST ALL TRIMMERS FOR +.00V 0 AT PAD X, +6.00V AT PAD Y, AND V AT PAD Z. 0k k5 4k7 500 MULTI TO-0 HEATSINK TURN TRIMMER

36 PSU SCHEMATICS