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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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#1
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just asking.. before i start.
Have this mobile radio i will be looking at soon
when i get it. It works perfectly, apparently how ever, it constantly draws 6 amps when turned off which is a lot more than it should be drawing just for the RX mode idle state. And no over load protection ever kicks in, in essence, it drains the battery in the car. My guess is, it maybe a leaky reverse diode or cap that just isn't shorting enough to cause protection over loads to take place. We'll see when we get the radio on our bench. -- "I'm never wrong, once i thought i was, but was mistaken" Real Programmers Do things like this. http://webpages.charter.net/jamie_5 |
#2
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just asking.. before i start.
Jamie wrote: Have this mobile radio i will be looking at soon when i get it. It works perfectly, apparently how ever, it constantly draws 6 amps when turned off which is a lot more than it should be drawing just for the RX mode idle state. And no over load protection ever kicks in, in essence, it drains the battery in the car. My guess is, it maybe a leaky reverse diode or cap that just isn't shorting enough to cause protection over loads to take place. We'll see when we get the radio on our bench. -- "I'm never wrong, once i thought i was, but was mistaken" Real Programmers Do things like this. http://webpages.charter.net/jamie_5 If you had included a Make ,model & if a CB or other I might be able to help you. Here are some suggestions (If unit is hybred tubes & transistor you may have tube filiments on all time) Most comercial units had a black wire for ground, A red wire for radio operation & another smaller wire (usually orange for tube filiments on Motorola) Ignition had to be on to transmit, unit would rec when ever on off sw was in on position |
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