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Paia 9710, Assembly And Using Manual

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9710 VCA      5

000216

listed below:   18k

brown-grey-orange

(  ) R71

(  ) R81

(  ) R85

(  ) R87

listed below:   1k

brown-black-red

(  ) R25

(  ) R26

(  ) R80

(  ) R99

(  ) R107

listed below:   220

red-red-brown

(  ) R35

(  ) R36

(  ) R45

(  ) R46

(  ) R98

(  ) R20

2200

red-red-red

listed below:   220k

red-red-yellow

(  ) R16

(  ) R17

(  ) R75

(  ) R78

(  ) R88

(  ) R97

listed below:   22k

red-red-orange

(  ) R23

(  ) R37

(  ) R47

(  ) R60

(  ) R69

listed below:   33

orange-orange-black

(  ) R1

(  ) R2

(  ) R62

(  ) R68

(  ) R82

3300

orange-orange-red

listed below:   330k

orange-orange-yellow

(  ) R53

(  ) R55

(  ) R58

(  ) R83

(  ) R84

listed below:   33k

orange-orange-orange

(  ) R51

(  ) R52

(  ) R70

(  ) R103

(  ) R29

390

orange-white-brown

(  ) R30

3900

orange-white-red

(  ) R32

3900

orange-white-red

(  ) R79

3900

orange-white-red

(  ) R74

4.7meg

yellow-violet-green

(  ) R27

470k

yellow-violet-yellow

(  ) R86

470k

yellow-violet-yellow

listed below:   47k

yellow-violet-orange

(  ) R31

(  ) R49

(  ) R54

(  ) R56

(  ) R57

(  ) R59

(  ) R90

(  ) R101

(  ) R106

(  ) R119

(  ) R120

Summary of Contents for 9710

Page 1: ...710 like a traditional VCA but with the added convenience of a built in Voltage Controlled Input Submixer and ADSR Envelope Generator This configuration of elements allows a couple of signals to be mi...

Page 2: ...ay seem silly and ritualistic but it greatly decreases the chance of omitting a step and also provides some gratification and reward as each step is completed Numbered figures are printed in the Illus...

Page 3: ...to cover the soldering pad and about 1 16 inch of lead passing through it There are two improper connections to beware of Using too little solder will sometimes result in a connection which appears to...

Page 4: ...ends of each resistor in place as you install it Clip each lead flush with the solder joint and save a few of the clippings for use in later steps A tip If you can t find the location for a resistor...

Page 5: ...37 R47 R60 R69 listed below 33 orange orange black R1 R2 R62 R68 R82 3300 orange orange red listed below 330k orange orange yellow R53 R55 R58 R83 R84 listed below 33k orange orange orange R51 R52 R70...

Page 6: ...rts through the holes in the board and push the part against the circuit board as far as it wants to go Don t force it it s OK if it sits a little off the board Capacitors are often marked with obscur...

Page 7: ...c kits may have a higher Voltage V rating than the minimum specified below DESIGNATION VALUE C20 10uF 15V C21 10uF 15V C16 1uF 15V C1 220uF 25V C2 220uF 25V C19 33uF 15V C4 4 7uF 15V C6 4 7uF 15V Diod...

Page 8: ...ESIGNATION TYPE Q3 Q4 2N3904 NPN Si Transistor Matched Pair One transistor has been selected for use as a noise source and has one of its leads cut short Q5 2N3906 Selected for noise Install the remai...

Page 9: ...formed into the case of the IC corresponding to pin 1 or a semicircular notch that indicates the end of the package with pin 1 Take care that this polarizing indicator corresponds to the similar indic...

Page 10: ...re soldering the second lead and trimming both leads off flush with the solder joint DESIGNATION TYPE LED1 Red LED Flying Wires i e those which go from circuit board to panel mounted parts In the foll...

Page 11: ...indicates a cold joint reheat them Solder bridges are less likely with a solder masked circuit board but they can still happen If you re not sure about a bridge refer to the foil patterns in fig 1 Fro...

Page 12: ...rient the pots with the solder lugs as shown in fig 3 and fully tighten the nuts to secure them A tip marking the part number e g R109 on the back of the pots with an indelible pen will make later wir...

Page 13: ...out 1 1 4 long extends beyond J9 Solder the connections to the S lugs of J1 and J9 first then bend the S lugs of J2 J8 up and solder them to the wire as was done on the previous jacks Connect the free...

Page 14: ...he three wires at this connection This is R115 in fig 3 Slip the length of sleeving from above over R115 and connect the free lead to J3 R Bend back to secure Do not solder Locate the 47k resistor yel...

Page 15: ...in the L brackets When satisfied with the alignment of panel LED and circuit board fully tighten the hardware Finish panel assembly by connecting the remaining wires from the circuit board to the jack...

Page 16: ...inst the wire and pin until the solder remelts You should not need to add more solder Allow the joint to cool and test it by wiggling the wire to make sure the joint is firm Do not wrap the wings of t...

Page 17: ...and start testing which makes this is an great time to take another break stretch and think about something else for a while When you come back take the time to do a final check The flying wires to t...

Page 18: ...e g if when panning from L to R you hear the pitched source increase in volume but hear no noise it means that at least the R VCA is working OK But you can infer more than that since sections of all...

Page 19: ...ng with the way J6 is wired 6 Switch the modulator from Cycle to ADSR and connect a gate source to Modulation input G Gate Gate signals should be true positive transition from ground to a positive vol...

Page 20: ...at this input normals to the ADSR output You ll have to remember on your own that there s a 10dB V exponential converter as part of this connection External inputs interrupt the normal and the expo co...

Page 21: ...ng the Attack phase Clockwise rotation of the control slows the rate which is variable from 500uS to as long as 10 seconds Decay control Sets the rate at which the ADSR function falls from the peak re...

Page 22: ...t will at some point exceed the Sustain level and IC7 D will switch from low to high but this simply prepares the circuit for the Decay phase which will happen later and produces no effect at this tim...

Page 23: ...the voltage on the wiper of the Pan control goes from 0 to 12V and increase the L gain IC3 B and associated components outputs a voltage that is the inverse of the Pan control setting for decreasing...

Page 24: ...brown grey orange R71 R81 R85 R87 5 1k brown black red R25 R26 R80 R99 R107 5 220 red red brown R35 R36 R45 R46 R98 1 2200 red red red R20 6 220k red red yellow R16 R17 R75 R78 R88 R97 5 22k red red...

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