Filter Replacement » History » Version 5
laforge, 02/19/2016 10:48 PM
link to component kit
1 | 1 | == Motorola filter replacement == |
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3 | To replace filters on Motorola phones you will need: |
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5 | * [http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=HHM1526 HHM1526] |
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6 | * [http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=HHM1523C1 HHM1523C1] |
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7 | * [http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=04025A150JAT2A 04025A150JAT2A] |
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8 | * [http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=04025A220JAT2A 04025A220JAT2A] |
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10 | 5 | laforge | As the shipping cost for such a small-quantity order is relatively high, a complete component kit will |
11 | soon be available for online order from http://shop.sysmocom.de/products/osmocombb-filter-kit |
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14 | 2 | === Remove existing baluns === |
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16 | First you will need to remove existing balun: |
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18 | [[Image(motorola_filter_replacement_step_1_low.jpg, 250px)]] |
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19 | [[Image(motorola_filter_replacement_step_2_low.jpg, 250px)]] |
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20 | |||
21 | === Solder new baluns === |
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23 | Clean up the phone and solder HHM1526 and HHM1523C1 on the right places (the black dot goes up): |
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24 | |||
25 | [[Image(motorola_filter_replacement_step_3_low.jpg, 250px)]] |
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26 | [[Image(motorola_filter_replacement_step_4_low.jpg, 250px)]] |
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27 | [[Image(motorola_filter_replacement_step_5_low.jpg, 250px)]] |
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29 | 3 | === Solder ceramic capacitors === |
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30 | 2 | ||
31 | 4 | Last step is to solder ceramic capacitors 04025A150JAT2A and 04025A220JAT2A: |
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32 | 2 | ||
33 | [[Image(motorola_filter_replacement_step_6_low.jpg, 250px)]] |
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34 | [[Image(motorola_filter_replacement_step_7_low.jpg, 250px)]] |
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35 | |||
36 | === Credits === |
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37 | |||
38 | 1 | Thanks to Sylvain and Peter who made this possible. |