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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Yaesu FT-757GX Problem
Hi Group , I have a Yaesu FT-757GX that has a problem with the
receive frequency attenuating by 500khz. The frequency will jump up 500khz at will and then return to it's selected frequency at any given moment . It will jump in frequency in all modes and in all meter bands . This doesn't appear to be a heat related problem because it will attenuate the frequency even when cold . The digital display will not change when the transceiver attenuates in frequency . I am not sure if this transceiver has the problem in transmit mode . Will someone please help me with the fix to it's problem . Thanks for any good help . You are very appreciated . Thanks , KC0UZK |
#2
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Yaesu FT-757GX Problem
Hello,
rijo ha scritto: Hi Group , I have a Yaesu FT-757GX that has a problem with the receive frequency attenuating by 500khz. The frequency will jump up 500khz at will and then return to it's selected frequency at any given moment . It will jump in frequency in all modes and in all meter bands . How did you determine it's exactly 500 KHz? and it's always a step of plus 500 KHz? This doesn't appear to be a heat related problem because it will attenuate the frequency even when cold . The digital display will not did you try to shake or poke the transceiver when the problem occurs and see if it gets back on frequency? This will tell you there's a lose connection and/or bad solder somewhere. change when the transceiver attenuates in frequency . I am not sure if this transceiver has the problem in transmit mode . Will someone please help me with the fix to it's problem . Thanks for any good help . You are very appreciated . Thanks , KC0UZK Do you have the service manual of the transceiver? If you don't, I believe you can download it from he http://www.eserviceinfo.com/download...u_FT757GX.html I don't know enough this transceiver to give any other suggestion, sorry. Best regards Francesco IS0FKQ |
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