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Velleman-Kit HIGH-Q K8040 Assembly Manual page 10

High-end mono mosfet power amplifier

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Construction
20. Power electrolytic capacitors.
Check the polarity !
C31: 10.000µF
C32: 10.000µF
C33: 10.000µF
C34: 10.000µF
22. Mounting front LED's. Check the polarity !
Short lead = Cathode or - !
LD ...
C A T H O D E
First: Bend the leads exactly like the
drawing.
Next: Solder one lead, and check the
position, if necessary correct by
heating the soldering.
Last: Solder the second connection.
LD4: L-424YDT
LD5: L-424YDT
LD6: L-424YDT
LD7: L-424YDT
Meter backlight:
LD8 is a white LED serving as backlight
for the power meter.
LD8: L5WD (5mm white)
10
21. IC's.
notch !
C...
IC1: VK8040 (PIC12C508)
IC2: CA258 or eq.
IC3: MOC3041 / KP3020
CAUTION:
After bending the
leads the long
appearing lead will
be the cathode!
IMPORTANT
Mount these LED's exactly like in the
drawing, otherwise some LED's will
not fit correctly in the front panel.
Please also use the front panel as a
positioning reference.
C
7mm
Watch the position of the
12m m
LD...
CATHODE
3mm
18mm

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