What quantity Ohm mast be in first winding of power transformer?

There are two thermal switches, a high voltage capacitor, a double diode, the transformer and the magnetron itself that could be the problem . I am going to say straight up that you could get electrocuted if you dont know what to do here. To test:

HV TRANSFORMER

Remove lead wire.

Measure the resistance of the winding using an ohm meter

Primary winding 3 ohm (approx.)

Secondary winding 100 ohm (approx.)
Filament winding 0 ohm (approx)
HV CAPACITOR Remove lead wire Measure the resistance using an ohm meter set to R*1000
Terminal to terminal should momentary indicates several ohms but gradually increases to infinite.
Terminal to case should show infinite.

MAGNETRON
Remove lead wire. Install the magnetron gasket in the correct position. Check that the gasket is in good condition.
Measure the resistance of the filament terminals. Normal magnetron should be less than 1 ohm.
Measure the resistance between the filament terminal to chassis. Normal magnetron should be infinite.

HV CAPACITOR

Remove lead wire

Measure the resistance using an ohm meter set to R*1000

Terminal to terminal should momentary indicates several ohms but gradually increases to infinite.
Terminal to case should show infinite.

Hi I just checked the primary winding on two transformers for u one was 13 ohm the other 21 ohm for 240 volt power supply Sounds like u have a shorted turn on the primary winding. Hope this helps

Probably cheaper to buy a new microwave as they maintenance charge can be costly once put on a bench.
I am not able to help with this item.

Yes, you need a step down transformer. These are often rated in watts (the power rating is the same on both sides of a transformer) so it is easy enough to match this with the power consumption of the stereo. Apparently you will need about a 4kW transformer eg

http://www.220converters.com/store/p/45-Simran-THG4000-4000-W-Watts-Step-Down-Voltage-Converter-220v-to-110v-Transformer.html

Ugly things.

Hope this helps you ??

The most common problem for no FM is the failure of component F1 IF transformer. One of the windings on the transformer opens, so you have either no input, or a very low level input to the FM mixer. You need to obtain a copy of the Satellit 700 service manual, and then find F1 in the schematics. You can check the windings with a simple ohm meter to verify if one of the windings is open or not.
If F1 is defective, and I have seen many 700's with this fault, you need to replace it with an adjustable 10.7 MHz IF Transformer in a 7mm can configuration.
I found a replacement 7 mm 10.7 MHz IF Transformer at Talon Electronics. Their part number for it is IND2134, and it costs a whopping $0.80. Here is a link:
http://www.talonix.com/shop/item.aspx?itemid=10217#.VDBYrWd0zuo

Check the primary and secondary windings with an Ohm meter to determine if the transformer is bad. You should get measurable resistance through both coils. Hope this helps

You can read the motor/generator windings with a volt ohm meater. Is it dc or ac? You should be able to read some voltage as long as it is turning? If it is a dc generator it will read dc voltage at the slightest of wind speed. If it is an ac generator it may have to be above 5 mph to get a reading. No reading could mean a broken wire. 

Hi and welcome to FixYa,

I have to agree with you that that component is a thermal fuse. In my country, they are readily available in most electronics/hobbyist parts store. These components are also used for small motors and therefore would also be available in some (but not all) kitchen appliances parts stores. A temporary workaround is to install an ordinary fast blow fuse.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Make shure with an ohm meter that the primary and secondary windings have very little resistance on the main trasformer,then check voltage in trasformer and out from transformer...BIGRED