Unic URW295CR, Maintenance Manual

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18. Pull out the cord until the marked yellow tape can be seen to attach the stopper for preventing over-wound.
If the stopper for preventing over-wound is not available, fix the cord on the case with a gummed tape
to prevent it from being wound up furth
Keep always apply tension to the cord.
19. Fix the case and the base plate with the countersunk screw.
20. Melt the solder to disconnect the wires and replace the potentiometer with new one.
21. Rotate the gear with your hand to engage the gear with the drum shaft at the position where resistance
measures 300Ω between terminals 2 (white) and 3 (black) to fix the bracket to the case.
(Use a digital circuit tester for resistance measurement.)
(Pull out the cord to a certain extent out of the drum to check that the resistance
between terminals 2 (white) and 3 (black) makes a smooth increase.)
22.Attach the cover and tighten the cord bushing to complete the work.
( 27 - 4 )
Gear
Rotating shaft
Window
Fix it with a gummed
tape
１
２
３
１．.Red
２．.White
３．Black
Stopper for
preventing over-
wound
Yellow tape