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It is a long time since I upgraded my O/S from W98 to XP, later XP to W7. So I would like some assistance on how to upgrade to W11 please.
All I need is a few hints on how to do it. Any assistance will be appreciated.
Rather than rheostat, you could use a MOSFET with a potentiometer to control the gate voltage. Alternatively, you could use a magnetic amplifier. I'll post a circuit of one later. I need to do other things at the moment.
I can't answer your first question. But the purpose of the capacitor is to introduce a phase angle to give the effect of a rotating magnetic field in order to start the motor.
Thanks for the reply.
However, I don't think it due to ESD. I'm always very careful to avoid ESD issues. My programmer/tester has a ZIF socket. Before I insert a PIC, I hold the PIC in one hand with all of the pins touching my skin & then touch the gnd line on the Programmer/Tester while I...
I followed the instructs given by Wolfgang Buescher & added the PIC16F1708 to WinPIC. When I programmed a 1708, WinPIC stated that the programming had failed. The message said "0x008005 read 0x002005 wanted 0x003FFF". But the HEX code was green rather than red, so I tested the PIC & it worked...
Thanks for the reply. I tested the TRIAC with my component tester 2 or 3 days ago. It is OK. I don't know if it can test the DIAC, I suspect not but I'll try.
Otherwise, I'll try again to find a data sheet for it & test it by hand using a variable power supply & a series resistor. I would...
After much effort, I have drawn the circuit diagram.
I presume U1 is a microprocessor but I cannot find a data sheet for it. So it must be proprietary.
I found the high voltage section difficult to understand. My best guess is that on positive half cycles (where A is more positive than N) the...
On the bottom of the case, there is the number 2010 0100 which I assume is the year.
On the PCB there is the number 1607502009 which possibly indicates it was made in 2009 thus fitting in with the 2010.
1605514472
Thanks vfone, I'll read the post in the badcaps forum & report here once I've...
I don't know what you mean by a "smart charger". It automatically switches off when the battery is charged. Yes, it is a proprietary IC. I removed the varnish that was hiding the IC number using acetone, cotton buds & a lot of rubbing. See photo. So, if the IC is faulty, I won't be able to...
Thanks, but there is no obvious output transistor. There are 3 transistors that look like low current ones. The main IC & the transistors have some sort of varnish on them which makes it impossible to read the numbers. The 4 pin IC looks like an opto coupler & it is between the high & low...
Thanks Klaus. The information plate of one is different to the other even though they both look the same as the photo I posted. I have attached a photo of their information plates.
I have several Bosch battery tools that all use the same batteries & charger. I have 2 chargers, but one failed about 2 years ago & the other one failed yesterday. I therefore want to repair them. But a circuit diagram (schematic) would be helpful. I did an internet search but found nothing...
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