Icom IC-910H Service Manual page 11

• UT-102 VOICE SYNTHESIZER UNIT
q Remove the bottom cover as shown in the diagram on
p. 3-1.
• Remove the UX-910 if you have installed it. (p. 3-1)
w Remove the protective paper attached to the bottom of
the UT-102 to expose the adhesive strip.
e Plug UT-102 into J1801 on the MAIN unit as shown in the
diagram at right.
r Return the bottom cover to its original position.
• UT-106 DSP UNIT
RECOMMENDATION:
When installing only 1 DSP unit, you can install into
either front or rear panel side. However, installing a
DSP unit into the front panel side may be easier and
also safer.
Installing 1st DSP unit (front panel side)
q Remove the bottom cover as shown in the diagram on
p. 3-1.
• Remove the UX-910 if you have installed it. (p. 3-1)
w Remove the shielding plate.
e Remove the connection cable from J1751 on the MAIN
unit. Connect the cable into J1 on the UT-106.
r Plug the connection cable (P1) from the UT-106 to J1751
on the MAIN unit.
t Plug the flat cable into J3 on the UT-106 and to J1771 on
the MAIN unit.
• Take care of the conductor direction.
• Attach the Velcro tape to the UT-106 and PLL unit
shielding plate.
y Return the shielding plate, top cover and bottom cover to
their original positions.
Shielding plate
J3
UT-106
J1771
Take care of the
conductor direction.
PLL unit
J1
P1
J1751
MAIN unit
From The N3UJJ.COM Document Library From The N3UJJ.COM Document Library
MAIN unit
Installing 2nd DSP unit (rear panel side)
q Remove the top and bottom cover as shown in the dia-
gram on p. 3-1.
• Remove the UX-910 if you have installed it. (p. 3-1)
w Remove the shielding plate.
e Remove the connection cable from J1761 on the MAIN
unit. Connect the cable into J1 on the UT-106.
The cable between J1221 on the MAIN and J1 on the
DSP unit, must be set in the groove of the chassis (see
diagram below).
Otherwise, the cable may be damaged when returning
the shield plate to its original position.
r Plug the connection cable (P1) from the UT-106 to J1761
on the MAIN unit.
t Plug the flat cable into J3 on the UT-106 and to J1781 on
the MAIN unit.
• Take care of the conductor direction.
• Attach the Velcro tape to the UT-106 and PLL unit
shielding plate.
y Return the shielding plate, top cover and bottom cover to
their original positions.
Shielding plate
PLL unit
UT-106
Take care of the
conductor direction.
MAIN unit
3 - 3
UT-102
J1801
Set cable into the groove.
J1
J3
J1
J1781
P1
J1761