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#1
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Icom 706 MKIIG wont turn on.
Anyone ever have a problem with a Icom 706MKIIG not turning on? I
checked voltage inside the unit and it shows 14 v up through the internal fuse section. I own 2 Icom 706mkiig and this newer model just would shut off while attempting to Tx in the other vehicle where the older 706 mkiig works flawlessly. Of course the warranty just expired |
#2
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"Bill Raymond" wrote in message om... Anyone ever have a problem with a Icom 706MKIIG not turning on? I checked voltage inside the unit and it shows 14 v up through the internal fuse section. I own 2 Icom 706mkiig and this newer model just would shut off while attempting to Tx in the other vehicle where the older 706 mkiig works flawlessly. Of course the warranty just expired Try the Yahoo 706 board http://groups.yahoo.com/group/ic706/messages -- Steve N, K,9;d, c. i My email has no u's. |
#3
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"Bill Raymond" wrote in message om... Anyone ever have a problem with a Icom 706MKIIG not turning on? I checked voltage inside the unit and it shows 14 v up through the internal fuse section. I own 2 Icom 706mkiig and this newer model just would shut off while attempting to Tx in the other vehicle where the older 706 mkiig works flawlessly. Of course the warranty just expired Try the Yahoo 706 board http://groups.yahoo.com/group/ic706/messages -- Steve N, K,9;d, c. i My email has no u's. |
#4
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Anyone ever have a problem with a Icom 706MKIIG not turning on? I
checked voltage inside the unit and it shows 14 v up through the internal fuse section. I own 2 Icom 706mkiig and this newer model just would shut off while attempting to Tx in the other vehicle where the older 706 mkiig works flawlessly. Of course the warranty just expired I have one and sometimes it will not come on in the house. It seems that when I turn on the power supply then try to turn on the Icom , it will not come on. If I unplug the Icom and plug it back to the 12 volt supply it will come on and work fine. Not sure if the voltage comming up slow has something to do with that or not. It just started doing it after about 2 years. All the other rigs work fine from the same Astron 50 amp supply, including a Yeasu 757. In the case of the rig which shuts itself down when transmitting - are you measuring the voltage inside the rig when the rig is off, or when receiving, or also when trying to transmit into a dummy load? If there's a bad fuse, switch, or connection somewhere, the voltage drop from the fault might be relatively low when only a small amount of current is being drawn - with the rig off, it might read full battery voltage. When the rig tries to draw more current through the high-Z fault, the voltage drop in the fault might reduce the voltage seen by the rig's circuitry enough to result in a "low voltage" safety shutdown (or failure to start up). Try putting a 'scope on one of the 14-volt-rail test points on one of the rig's PC boards, and see if [1] the voltage is getting through OK with the rig off, and [2] if the voltage drops abruptly for a moment when you try to power on. -- Dave Platt AE6EO Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#5
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Anyone ever have a problem with a Icom 706MKIIG not turning on? I
checked voltage inside the unit and it shows 14 v up through the internal fuse section. I own 2 Icom 706mkiig and this newer model just would shut off while attempting to Tx in the other vehicle where the older 706 mkiig works flawlessly. Of course the warranty just expired I have one and sometimes it will not come on in the house. It seems that when I turn on the power supply then try to turn on the Icom , it will not come on. If I unplug the Icom and plug it back to the 12 volt supply it will come on and work fine. Not sure if the voltage comming up slow has something to do with that or not. It just started doing it after about 2 years. All the other rigs work fine from the same Astron 50 amp supply, including a Yeasu 757. In the case of the rig which shuts itself down when transmitting - are you measuring the voltage inside the rig when the rig is off, or when receiving, or also when trying to transmit into a dummy load? If there's a bad fuse, switch, or connection somewhere, the voltage drop from the fault might be relatively low when only a small amount of current is being drawn - with the rig off, it might read full battery voltage. When the rig tries to draw more current through the high-Z fault, the voltage drop in the fault might reduce the voltage seen by the rig's circuitry enough to result in a "low voltage" safety shutdown (or failure to start up). Try putting a 'scope on one of the 14-volt-rail test points on one of the rig's PC boards, and see if [1] the voltage is getting through OK with the rig off, and [2] if the voltage drops abruptly for a moment when you try to power on. -- Dave Platt AE6EO Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#6
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Anyone ever have a problem with a Icom 706MKIIG not turning on? I
checked voltage inside the unit and it shows 14 v up through the internal fuse section. I own 2 Icom 706mkiig and this newer model just would shut off while attempting to Tx in the other vehicle where the older 706 mkiig works flawlessly. Of course the warranty just expired I have one and sometimes it will not come on in the house. It seems that when I turn on the power supply then try to turn on the Icom , it will not come on. If I unplug the Icom and plug it back to the 12 volt supply it will come on and work fine. Not sure if the voltage comming up slow has something to do with that or not. It just started doing it after about 2 years. All the other rigs work fine from the same Astron 50 amp supply, including a Yeasu 757. |
#7
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Anyone ever have a problem with a Icom 706MKIIG not turning on? I
checked voltage inside the unit and it shows 14 v up through the internal fuse section. I own 2 Icom 706mkiig and this newer model just would shut off while attempting to Tx in the other vehicle where the older 706 mkiig works flawlessly. Of course the warranty just expired I have one and sometimes it will not come on in the house. It seems that when I turn on the power supply then try to turn on the Icom , it will not come on. If I unplug the Icom and plug it back to the 12 volt supply it will come on and work fine. Not sure if the voltage comming up slow has something to do with that or not. It just started doing it after about 2 years. All the other rigs work fine from the same Astron 50 amp supply, including a Yeasu 757. |
#8
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#9
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