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motorola 2600b

This forum exists for the purposes for discussing service monitors (This includes but is not limited to Motorola, HP, Aeroflex, GD, etc). Additional topics allowed include test procedures, interpretation of test results, where to find information about specific tests, antenna VSWR, return loss testing, duplexer and filter alignment, etc.

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What radios do you own?: motorola/vertex/ midland/kenwo

motorola 2600b

Postby n4jem1 » Sun Jul 06, 2014 7:24 am

Have a problem with 2600b when it goes in to tracking a second later it will black out go back to monitor any help is appreciated.
thanks Jack/n4jem
73s thanks n4jem

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Joined: Fri Feb 06, 2004 3:14 pm

Re: motorola 2600b

Postby jry » Mon Jul 07, 2014 7:16 am

I would start by pulling the boards and looking for leaky SMT electrolytic capacitors.

There is a million screws and the card guides can be pretty stiff as well.

It basically amounts to a complete tear down of the unit and inspection.

It will take time and look closely.

If you have a capacitance meter than it may be worth checking that way as well.

Most of the boards have 25uf 16v IIRC

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Re: motorola 2600b

Postby VE3HKB » Tue Jul 08, 2014 6:23 pm

Capacitor cancer is quite common in the 2600s. There are two 33uF 25V caps on the receiver board that are known to leak. If not caught in time, the electrolyte can destroy PCB traces, making repair very difficult, if not impossible.

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