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• •
Main printed circuit board ROA 117 2285
• •
LCD Assembly SXA 120 4273
• •
Antenna Connector Assembly
• •
Volume Control Knob with set screw SXA 120 4237
DISASSEMBLY
Refer to Figures 17-19 when disassembling and/or
reassembling the radio unit or replacing any replaceable
items.
Radio Disassembly
1.
Be sure radio power is off.
2.
Remove the battery from the radio.
3.
Remove the antenna from the radio.
4.
On the back of the radio, remove the six (6) screws
using a small Phillips screwdriver. Note that four (4) of
the screws are short and must be replace in the same
locations when re-assembling the radio.
5.
Carefully separate the front cover from the rear cover.
Circuit Board Removal
1.
Use a small flatblade screwdriver to insert between the
board and the front cover near the flexible printed
circuit strip on the side opposite of the push-to-talk
(PTT) switch. Be careful of the flexible printed circuit
strip as you carefully pry up the board.
2.
Once the board is removed from the cover, the flexible
printed circuit strip can be removed.
3.
On the vertical ZIF connector X102 on the circuit
board, slide the brown retaining bracket to release the
flexible printed circuit strip.
LCD Assembly Removal
1.
Carefully pry up on the LCD assembly to loosen it from
the adhesive tape on the printed circuit board.
2.
On the LCD ZIF connector X601 on the printed circuit
board, slide the brown retaning bracket to release the
LCD assembly flexible printed circuit strip.
Antenna Assembly
1.
After the rear cover has been removed, the antenna
assembly can be removed by carefully using a small
flatblade screwdriver.
SXK 107 3832
Volume Control Knob
1.
Use a small hex wrench to loosen the set screw in the
knob to remove the knob.
ASSEMBLY
LCD Assseesbly
1.
Ensure that the brown retaining bracket on the LCD
Assembly ZIF conneetor X601 is in the release
position and then insert the LCD Assembly flexible
printed circuit strip into the connector.
2.
slide the brown retaining bracket into place to secure
the flexible printed circuit strip.
NOTE
If the adhesive tape does not require replacement,
proceed to Step 4.
3.
Install the adhesive tape to the main printed circuit
board by aligning it over the mounting holes for the
LCD Assembly. Press into place and then remove the
protective liner from the adhesive tape.
4.
Position the LCD Assemby over the adhesive tape
observing the notch on the LCD Assembly and the
mounting hole alignment on the main printed circuit
board. Use medium pressure on outside of plastic
surface to firmly attach the LCD Assembly. DO NOT
touch glass surface of the LCD Assembly.
Circuit Board Installation
1.
Ensure that the brown retaining bracket on the vertical
ZIF connector X102 is in the release position and then
insert the flexable printed circuit strip from the front
cover assembly into this connector.
2.
Slide the brown retaining bracket into place to secure
the flexible printed circuit strip.
3.
Reinstall the main printed circuit board by inserting the
side toward the PTT first and then pressing in on the
side of the board near the flexible printed circuit strip.
Ensure that printed circuit strip is not damaged when
performing this step.
Antenna Assembly
1.
Carefullly insert the antenna assembly into the rear
cover until it snaps into place.
AE/LZB 119 1890 R1A
17
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