Voice Synthesizer Unit - Icom IC-820H Instruction Manual

| UT-36 VOICE SYNTHESIZER UNIT
The UT-36 announces the accessed band's fre-
quency, mode, etc. in a clear, electronicaily-
generated voice, in English (or Japanese).
@ Remove both the top and bottom covers. (p. 44)
(2) Open the MAIN unit chassis. (p. 44)
@) Remove the protective paper attached to the
bottom of the UT-36 to expose the adhesive
strip.
@ Attach the UT-36 to the rear of the speaker as
shown in the diagram at right.
©) Set the language, speech speed and speech
level as shown in the diagram at right.
©) Replace the MAIN chassis and top/bottom cov-
ers.
OPTION INSTALLATIONS 13
Speech level UT-36
Slow ==> Fast
Speech English Japanese
speed
fa CR-293 HIGH STABILITY CRYSTAL UNIT
A temperature-compensating crystal with a stability
of +3 ppm is built-in to the transceiver. For more
demanding operation, such as during transverter
use, etc., the CR-293 HIGH-STABILITY CRYSTAL
UNIT is available. It has a stability of 0.5 ppm.
) Remove both the top and bottom covers. (p. 44)
(2) Open the MAIN unit chassis. (p. 44)
(@) Remove the shield cover from the PLL unit.
(Fig 1)
(4) Remove 7 screws from the PLL unit, then lift up
the PLL unit to expose the bottom side of the
unit. (Fig 2)
(5) Unsolder the 3 points of the built-in crystal's lead
on the bottom of the PLL unit and the 7 point on
the top of the PLL unit.
- Use a desoldering braid.
(6) Replace the built-in crystal with the CR-293 and
solder the leads of the CR-293.
(7 Replace the PLL unit and the 7 screws.
Fit the wires from the rear of the front panel in the
open space between the chassis ana PLL unit.
(Fig 3)
- Otherwise, the wires will be pinched by the PLL unit
cover and the transceiver may be damaged.
@) Replace the PLL unit cover, MAIN unit chassis,
and top/bottom covers.
NOTE: The CR-293 is an oven-type crystal unit,
and specified frequency stability described above
are guaranteed 1 min. after power ON.
SSS
2)
ig @ tal
CR-293 ¥ eye
46