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Document revision 1.1 – Last modification : 01/05/14
EQ573 Assembly guide – Main board
13. Visual check
At this point, brush the solder side with a hard tooth brush to remove any remaining solder bits.
Make a full visual check. Any missing component on the board ? Any remaining component in the box ?
When everything looks correct, proceed with the other boards assembly.
EQ573 Assembly guide – Switches board
14. PCB split
Split the PCB along the pre-engraved lines in order to get 3 parts. You can
polish the cut with a file.
15. PCB split (continued)
Separate the 2 tiny PCB's from the larger PCB's and smooth out the cuts
with a file or sand paper.
16. Anti-clic resistors
Insert and solder 43 4M7 resistors. The resistors are placed vertically.
17. Rotary switches
Add the 12 positions rotary switch SW4.
Warning
: The position of the switches is critical for a good front-plate matching and a smooth
potentiometer rotation. The switch rests on 3 small feet that must sit perfectly flat on the PCB. Press
the switch on the PCB and solder two opposed pins. Check position then solder the other pins.
Add the other three, 6 positions switches SW1, SW2 and SW5 in the same way.
18. Toggle switches
Add the two toggle switches SW3, SW6.
Warning
: The position of the switches is critical for a good front-plate matching. They must sit flat on
the PCB. Press firmly the switch on the PCB and solder two opposite pins (housing). Check position then
solder the other pins.
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