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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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Sony TC-K590: capstan-motor always running when power is on?
Hello!
I got a Sony TC-K590-tape-deck. It seems to work ok, only one thing is strange. The capstan-motor is running as soon as the deck is powered on. Even without tape, door open/close doesn't matter. No "need" to press play for it to start running. First I thought it might be similar to this problem: http://sci.tech-archive.net/Archive/.../msg00903.html But here there was action even when it was powered down. Also my backlight is dark/normal. And the faulty resistor mentioned is not the same value in the K590 as in Alans K620, so they might not be that similar. I got the thing used and in this state, so I don't know if it always did this. Does anybody have an idea what might be wrong, or even how to fix it? Or is this maybe even normal? I've never seen that on another tape and it doesn't seem to be a healthy behaviour. Thanks a lot for any hints. All the best, rob |
#2
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Sony TC-K590: capstan-motor always running when power is on?
I can't think of any good tape recorder I've owned that _didn't_ run the
capstan motor all the time. It simply makes sense. |
#3
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Sony TC-K590: capstan-motor always running when power is on?
William Sommerwerck schrieb:
I can't think of any good tape recorder I've owned that _didn't_ run the capstan motor all the time. It simply makes sense. Oh. My other non-crappy recorder (onkyo ta-2550) doesn't do it. Thanks for the info (also to Meat Plow). Care to explain why that makes sense? The downsides are that it wastes power and make (soft, but anyway) noises. What is it good for? Thanks & all the best, rob |
#4
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Sony TC-K590: capstan-motor always running when power is on?
"Robert Linden" wrote in message
... William Sommerwerck schrieb: I can't think of any good tape recorder I've owned that _didn't_ run the capstan motor all the time. It simply makes sense. Oh. My other non-crappy recorder (Onkyo TA-2550) doesn't do it. Thanks for the info (also to Meat Plow). Care to explain why that makes sense? The downsides are that it wastes power and make (soft, but anyway) noises. What is it good for? The power waste is minimal, because people don't usually leave their tape decks turned on without playing or recording. The practical advantage is that the capstan is "guaranteed" to be running at the right speed when the tape starts moving. That's something you'd expect from a "professional" (or "good amateur") tape deck. |
#5
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Sony TC-K590: capstan-motor always running when power is on?
Robert Linden wrote:
William Sommerwerck schrieb: I can't think of any good tape recorder I've owned that _didn't_ run the capstan motor all the time. It simply makes sense. Oh. My other non-crappy recorder (onkyo ta-2550) doesn't do it. Thanks for the info (also to Meat Plow). Care to explain why that makes sense? The downsides are that it wastes power and make (soft, but anyway) noises. What is it good for? Thanks & all the best, rob The capstan motor usually has a fan blade to cool the deck. -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
#6
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Sony TC-K590: capstan-motor always running when power is on?
If I remember correctly, the capstan runs all the time in your model type.
Many types of tape decks run this way. -- JANA _____ "Robert Linden" wrote in message ... Hello! I got a Sony TC-K590-tape-deck. It seems to work ok, only one thing is strange. The capstan-motor is running as soon as the deck is powered on. Even without tape, door open/close doesn't matter. No "need" to press play for it to start running. First I thought it might be similar to this problem: http://sci.tech-archive.net/Archive/.../msg00903.html But here there was action even when it was powered down. Also my backlight is dark/normal. And the faulty resistor mentioned is not the same value in the K590 as in Alans K620, so they might not be that similar. I got the thing used and in this state, so I don't know if it always did this. Does anybody have an idea what might be wrong, or even how to fix it? Or is this maybe even normal? I've never seen that on another tape and it doesn't seem to be a healthy behaviour. Thanks a lot for any hints. All the best, rob |
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