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Construction
18. Volume potentiometer.
RV...
q RV1: STRK27103 (2x50K ALPS)
CAUTION:
This is a high quality
potentiometer, handle it with care.
Follow the mounting instructions
exactly and in order!
1.Mount the support bracket onto the
potentiometer. Tighten the nut
carefully.
2.Mount the potentiometer onto the
PCB, using two 6mm (0.23")
screws and M3 nut.
Only slightly tighten the nuts !
Do not solder the potentiometer
connections yet !
14
19. Mains voltage selection
Use a piece of isolated brown wire to
select the mains (outlet) voltage, as
indicated on the PC board.
q For 115Vac (100 to 120Vac)
A jumper between A-B, and a jumper
between C-D.
A
B
q For 230Vac (220 to 240Vac)
A jumper between B-C.
B
Using a black marker, erase the
not used voltage at the back of the
unit.
20. Mains voltage connection
preparation
q Connect a 10cm blue wire to the
point N of SK8.
q Connect a 10cm brown wire to the
point L of SK8.
q Connect a 10cm yellow/green
wire to the earth point of SK8.
Later these connection will be
soldered to the mains connector.
C
D
C
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