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| Harrier cbx; help......no audio | |
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| Tweet Topic Started: Sunday, 14. June 2015, 12:50 (852 Views) | |
| bicyclos | Sunday, 14. June 2015, 12:50 Post #1 |
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Hi all I purchased a Harrier cbx the other week from flee-bay, the usual spares and repair sale. The radio is in absoloute mint condition on the outside and never been opened with security seals on both sides and came in its original box. Unfortunately, it has no audio on transmit and receive. Everything lighs up when switched on, signal meter works fine and transmits ok with a good 4watts into my power meter but no audio. I have used my handheld to see if it tx/rx which it does. I am in hope of getting the radio going but in need of some guidance where to start looking. I have a multimeter, cermaic screwdrivers and I am confident with the soldering iron. I have been trying to find a schematic layout and to get some inside knowledge about the ptmb134aox board before touching anything with a screwdiver and hammer ! I have checked the internal speaker external speaker socket pa socket tried 3 different microphones (cybernet wired) |
| May the propergation be with you | |
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| Ziggy | Sunday, 14. June 2015, 14:10 Post #2 |
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26 Charlie Tango 1234
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Very likely that the audio chip will have popped. 10 minute job if you're confident with a soldering iron and have the replacement to hand. If I remember correctly it's a Toshiba TA7205AP |
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G1ZIGLand Rover Discovery Alinco DX-70TH - Sirio 4000 Hi-Power mobile antenna | |
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| bicyclos | Sunday, 14. June 2015, 15:20 Post #3 |
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Cheers ziggy I have just sent off for 1 should have it mid week. Just one question, is the item rivited or is it threaded to the metal chassis? Regards |
| May the propergation be with you | |
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| bicyclos | Monday, 15. June 2015, 19:23 Post #4 |
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I have replaced the audio chip which came today and fitted the item very carefully. Took me an hour start to finish. I still have no audio !! Could it be a diode or something like that ? |
| May the propergation be with you | |
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| robbie222 | Saturday, 17. October 2015, 14:55 Post #5 |
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As they say,,,,,,anything you get for nothing aint worth having....bin it and buy a good one. |
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| 1 user reading this topic (1 Guest and 0 Anonymous) | |
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