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Mike wrote:
I havent used my TS440S/AT in some time and turned it on last night. I just keept beeping and the display lit up segments that were not numbers, so I quickly turned it off and made sure it was not keyed or anything else was amiss externally. Could be the famous "PLL unlock" failure mode. See http://www.mods.dk/view.php?ModelId=521 or google "ts-440 pll". 73, Markus HB9BRJ / AE6MG |
Mike wrote:
I havent used my TS440S/AT in some time and turned it on last night. I just keept beeping and the display lit up segments that were not numbers, so I quickly turned it off and made sure it was not keyed or anything else was amiss externally. Could be the famous "PLL unlock" failure mode. See http://www.mods.dk/view.php?ModelId=521 or google "ts-440 pll". 73, Markus HB9BRJ / AE6MG |
Yep.
Mike wrote: I havent used my TS440S/AT in some time and turned it on last night. I just keept beeping and the display lit up segments that were not numbers, so I quickly turned it off and made sure it was not keyed or anything else was amiss externally. I retried t but it did the same thing again. My suspicion is that the circuit board battery has finially died? Does this sound like the result, and how is it replaced? I went to Kenwoods website to check for a service bulletin but there was none, this is probably covered in the service manual. Mike KA1DRZ remove the QRMary to email me |
Yep.
Mike wrote: I havent used my TS440S/AT in some time and turned it on last night. I just keept beeping and the display lit up segments that were not numbers, so I quickly turned it off and made sure it was not keyed or anything else was amiss externally. I retried t but it did the same thing again. My suspicion is that the circuit board battery has finially died? Does this sound like the result, and how is it replaced? I went to Kenwoods website to check for a service bulletin but there was none, this is probably covered in the service manual. Mike KA1DRZ remove the QRMary to email me |
Hi Mike
I think the battery is only for memory. You should join this Yahoo Group and read about the " brown goop " and the PLL unlock. http://groups.yahoo.com/group/TS-440/ Good Luck Harry Mike wrote: I havent used my TS440S/AT in some time and turned it on last night. I just keept beeping and the display lit up segments that were not numbers, so I quickly turned it off and made sure it was not keyed or anything else was amiss externally. I retried t but it did the same thing again. My suspicion is that the circuit board battery has finially died? Does this sound like the result, and how is it replaced? I went to Kenwoods website to check for a service bulletin but there was none, this is probably covered in the service manual. Mike KA1DRZ remove the QRMary to email me |
Hi Mike
I think the battery is only for memory. You should join this Yahoo Group and read about the " brown goop " and the PLL unlock. http://groups.yahoo.com/group/TS-440/ Good Luck Harry Mike wrote: I havent used my TS440S/AT in some time and turned it on last night. I just keept beeping and the display lit up segments that were not numbers, so I quickly turned it off and made sure it was not keyed or anything else was amiss externally. I retried t but it did the same thing again. My suspicion is that the circuit board battery has finially died? Does this sound like the result, and how is it replaced? I went to Kenwoods website to check for a service bulletin but there was none, this is probably covered in the service manual. Mike KA1DRZ remove the QRMary to email me |
It sounds like the battery is marginal. Do a reset (A=B plus turn-on) and
see if it corrects the problem. If so the battery is on it's way out. It's not a PLL problem. -- Clif Holland, KA5IPF AVVid Authorized Kenwood and Icom Service Center 816 W Shady Grove Rd Irving, TX 75060 www.avvid.com 1-800-214-5779 972-870-0630 (Local) "Mike" wrote in message ... I havent used my TS440S/AT in some time and turned it on last night. I just keept beeping and the display lit up segments that were not numbers, so I quickly turned it off and made sure it was not keyed or anything else was amiss externally. I retried t but it did the same thing again. My suspicion is that the circuit board battery has finially died? Does this sound like the result, and how is it replaced? I went to Kenwoods website to check for a service bulletin but there was none, this is probably covered in the service manual. Mike KA1DRZ remove the QRMary to email me |
It sounds like the battery is marginal. Do a reset (A=B plus turn-on) and
see if it corrects the problem. If so the battery is on it's way out. It's not a PLL problem. -- Clif Holland, KA5IPF AVVid Authorized Kenwood and Icom Service Center 816 W Shady Grove Rd Irving, TX 75060 www.avvid.com 1-800-214-5779 972-870-0630 (Local) "Mike" wrote in message ... I havent used my TS440S/AT in some time and turned it on last night. I just keept beeping and the display lit up segments that were not numbers, so I quickly turned it off and made sure it was not keyed or anything else was amiss externally. I retried t but it did the same thing again. My suspicion is that the circuit board battery has finially died? Does this sound like the result, and how is it replaced? I went to Kenwoods website to check for a service bulletin but there was none, this is probably covered in the service manual. Mike KA1DRZ remove the QRMary to email me |
Many Thanks-I just tried the hold A=B and power up reset and it worked! I
down loaded the Service Manual somebody sent me the link to from mods.dk site, I found the battery in the parts list but couldn't find its location. Is it obvious when you crack the case, and is it a common battery to find an equivalent locally. thanks again for the tip. Mike ka1drz Filter the QRM from my callsign to email "Clif Holland" wrote in message ... It sounds like the battery is marginal. Do a reset (A=B plus turn-on) and see if it corrects the problem. If so the battery is on it's way out. It's not a PLL problem. -- Clif Holland, KA5IPF AVVid Authorized Kenwood and Icom Service Center 816 W Shady Grove Rd Irving, TX 75060 www.avvid.com 1-800-214-5779 972-870-0630 (Local) "Mike" wrote in message ... I havent used my TS440S/AT in some time and turned it on last night. I just keept beeping and the display lit up segments that were not numbers, so I quickly turned it off and made sure it was not keyed or anything else was amiss externally. I retried t but it did the same thing again. My suspicion is that the circuit board battery has finially died? Does this sound like the result, and how is it replaced? I went to Kenwoods website to check for a service bulletin but there was none, this is probably covered in the service manual. Mike KA1DRZ remove the QRMary to email me |
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