ADDAC System VINTAGE PRE ADDAC712 User manual

February.2023
ADDAC712 Assembly Guide
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ADDAC712 Assembly Guide
STEP 1:
Grab the pcb, gently brake it apart and trim the excess with a cutting plier.
STEP 3:
Next place and solder all transistors, then trim the excess legs with a cutting pliers.
STEP 2:
Proceed by locating the six 22uf capacitors, notice the orientation printed on the pcb.
Tip: soldering these caps is easy, just place a dab of solder on the pad on your right (left pad if you’re
left handed) and then, with the help of a tweezer, put the capacitor in place and reflow the previously
tinned pad to melt the solder while pushing the capacitor down. Then solder the other pad.

STEP 4:
Locate the two 120uf capacitors, straighten their legs as shown below.
STEP 5:
Notice the capacitors orientation, place their legs through the pcb holes and solder them to the pcb.
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STEP 7:
Place and solder the 2x5 boxed pinheader. Notice the indent orientation.
STEP 6:
Place and solder the remaining 470uf capacitors. Notice the part polarity orientation.
ADDAC712 Assembly Guide

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STEP 8:
Place and solder the 2x4 pinheader.
STEP 9:
Attach the spacers to the front pcb as shown below, notice the white plastic screw location.
ADDAC712 Assembly Guide

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STEP 10:
Align both pcbs toghether and solder the pinheader to the top pcb.
STEP 11:
Next locate the jacks and cut the thinest leg like shown below.
ADDAC712 Assembly Guide

Keep lines parallel
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STEP 13:
Adjust the height of the pcb keeping it parallel to the front panel and proceed to solder all parts.
STEP 12:
Place the remaining parts on the pcb, allign the front panel and tighten the jacks and pots’ nuts.
Threaded Jacks
Non-threaded
Jacks
Threaded
Jacks
Non-threaded
Jacks
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Finish it by placing the knobs and you’ve finished the
assembly process!
You’re all done!
Happy patching!
ADDAC712 Assembly Guide

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ADDAC712 ASSEMBLY GUIDE
February.2023Revision.01

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STEP 14:
Next attach the bottom pcb and tighten the two bottom screws.
ADDAC712 Assembly Guide