12
Feb.2003
fig.update-3
6.
Switch off the DR-3 unit.
IMPORTANT CAUTIONS
WHEN REPLACING THE
PIEZO PICKUP OR BATTERY
WIRING
How to Affix the Piezo Pickup
1.
Swab the location on the circuit board for affixing the piezo element (the
silkscreened region) with alcohol.
Make sure the area is free of flux, grime, or other soiling.
2.
Make sure the applied alcohol has dried completely.
3.
Peel off the backing of the double-faced adhesive tape on the back of the
piezo element, and affix the piezo element to the circuit board so that the
wiring position is aligned with the silkscreened guide on the circuit
board.
Give attention to the following:
• Do not allow any grime or soiling to adhere to the double-faced adhesive
tape.
• Press down on the outer periphery of the piezo element to affix it
securely.
• After affixing the piezo element, make sure that it is not loose at any
point.
• When pressing down on the piezo element, do not touch the metal
portion of the piezo element with the bare hand. (Be sure to wear gloves
or the like.)
• Do not press down on the solder area of the wiring or subject the area to
stress.
• Do not touch the chip diodes (DA7, DA11, and DA12) or subject them to
stress.
4.
Apply filament tape (P/No.40122645) to the piezo element from above to
secure the element to the circuit board.
Use tweezers to avoid transferring oils from the hands.
Once the filament tape has been applied, do not attempt to peel it off and
reapply it.
5.
Press down on the entire surface of the filament tape and on the outer
periphery of the piezo element to anchor them in place securely.
fig.piezo-1
How to Affix the Battery Wiring
Use filament tape to affix the wiring from the battery to the bottom cover.
fig.piezo-2
