Multitone RPR 561, Техническое руководство

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1 14
7 8
TAG10792-1
TxKEY (TP309)
DATA
+4.5V
3 BEC.EN (TP305)
2
1
B+ (TP301)
SPEECH3V (TP306)
4
9
GROUND (TP302)
N/C
5
10
1V
MIC+ 6
11
AUDIOX (TP307)
Rx AUDIO
7
12
Tx.TONE (TP 308)
TONE.Rx
14
13
8
CONNECTION PIN
RPR 561
TM1200 Issue 1 Page 5 - 8
Figure 4: Connections to SK301
Removing the Display Module
11. The procedure for removing the Display Module is as follows:
a) Unclip the Interface moulding from the Display Module.
b) Remove the two screws securing the moulding to the Decoder PCB. Remove the
moulding.
c) Unsolder the flexible interconnects from the Decoder PCB.
Re-Assembly
12. Re-assembly is a reversal of the above procedure. Ensure that the nylon washers are
fitted to the screws securing the Decoder Board to the case front. To re-case the
transceiver, insert the antenna end of the case back at an angle of 45
E
into the
corresponding end of the case front. Ensure that the antenna end of the case back fits
snugly into the case front. Lower the case back into position and snap the two halves
together.
13. Ensure that the plastic washer is located correctly on the antenna prior to re-fitting the
antenna.
FAULT FINDING
General
14. Connections to the transceiver can be made via the test socket SK301. Refer to
Figure 4 for connection details.