LK2 Reliability Modifications
Page7
Copyright © 2000 Linn Products Limited. All rights reserved.
Paul O’Neill
3. Step 4. Re-assemble the LK2
1. Re-attach the capacitor C16 that you removed to access R33. Use a medium sized flat-bladed
screwdriver to hold the head of the bolt while you screw the nut back into place. Ensure nuts are tight as,
if they come loose later, they may short out the circuitry while the unit is powered up and cause major
damage.
2. Re-attach the heatsink:
Apply heatsink compound in a single line along the centre of the coupling block as shown below
If board was attached to heatsink by nuts & bolts – follow the instructions below:
•
Remove all five bolts from the board and slide the bolts into the slots, arranged as shown below
•
Place the board onto the heatsink so that all the bolts pass through their respective holes on the
board (some readjustment is usually necessary).
•
Screw the nuts onto the bolts but do not tighten fully.
•
Adjust the position of the board with respect to the heatsink so that the two are matched up – i.e. the
two are parallel with each other and neither the board nor the heatsink are protruding at either side
(see pictures below – exaggerated to show problems clearly)
Heatsink
Slide the bolts into the
slots - positioned as
shown
Heatsink
protruding
from one side
Heatsink
not parallel
to board
Heatsink
compound
here
Summary of Contents for LK260
Page 35: ......
