Question about Samsung MC1360WA Convection/Microwave Oven

# Samsung M1630 stepdown transformer details

Hi, I need toknow the transformer details for this oven M1630N. Looks like its primary winding is blown off and no one wants to rewind the same. Hence looking for substitute with similar ratings. Would appreciate if someone can post the specs for this transformer. Thanks Regards Prasad

Posted by on

Ad

## 1 Answer

• Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

• Samsung Master
• 9,098 Answers

That model doesn't show up at my normal Samsung US parts supplier. Can you post all the numbers found printed on the transformer? One of them should be the Samsung part number. Normally you can look at the voltage rating of the large filter capacitor on the control board and assume that the AC secondary voltage will be about 2V less (in ACrms) than that DC voltage. Now what I'm saying may seem a bit twisted - and it is - but what I mean is this: If the cap is rated at 15VDC, then I'm saying that a secondary voltage of about 13VAC rms should be a good safe level for testing. To confirm this, multiply 13VAC by .635 (assuming it uses a full-wave rectifier) and you get about 8.26VDC. Then allow for about 50% derating by mulitplying the 8.26VDC by 2. This gives you 16.5VDC, which with my generous derating, is pretty close to the caps 15VDC. Then you can remove the transformer and use an isolated Variac(tm) to apply that calculated AC voltage to the secondary connections at the circuit board to see if it powers up. You can measure the DC voltage across the cap as you adjust the Variac(tm), making sure you don't get too close to or exceed the DC rating of the cap. Once you get it working with a main DC voltage of about 50-75% of what's printed on the main electrolytic capacitor, you can start shopping for a sub transformer. It's much easier if it's not a VFD display which would require a separate filament winding, but there's nothing wrong with using a small second transformer for that. You can even mount them both on the chassis and run long leads to the board. As long as the leads are of sufficient gauge, routed and secured well, and protected from nicks, there's nothing worng with that technique. You should make them long enough that if the front panel is later removed for service, the next technician will be able to see the wires before he pulls them out or otherwise damages them. I would also add a varistor on the primary if there's not already one! *grin*

Posted on Nov 01, 2006

Ad

## 1 Suggested Answer

• 2 Answers

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

## Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video.

×

Loading...

## Related Questions:

1 Answer

### Panasonic NN-C2003S microwave is completely dead. No lights, no action. Have taken cover off and checked fuse, which looks like it is in good condition.

Would need to check power to main board. A lot of times it is the small low voltage transformer on the main board. If the primary winding goes bad it cant get power to the rest of the board to function. So to start, is there power getting to the low voltage transformer on the main board??Have you had any thunder storms or power surges at your home where it is plugged in? If a home loses its Neutral power line it can mess up a lot of electrical devices in the home. do you notice your lights browning at times. If so you may need to get your power company out to do a load test on you system. But the transformer is a very low amp device and will not blow the main fuse if it goes bad. So you could bhave aburnt trace on the back of the main board or a bad transformer. Best guess. Good luck

Jun 26, 2017 | Panasonic Microwave Ovens

1 Answer

### I NEED TO KNOW TO CONNECT THE WIRES FROM THE TRANSFORMER CAPACITOR AND MAGNATRON

One side of the high voltage winding is usually connected to the frame of the transformer. Verify to make sure this is the case. The other end of the winding goes to the capacitor terminal that's not connected to the rectifier. There should be another high voltage wire that goes from the rectifier side of the capacitor to the magnetron. And, there should be two wires that go from the filiament winding on the transformer to the magnetron. The primary winding should be connected to whatever supplies 117 vac to it.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0

Apr 07, 2016 | Microwave Ovens

1 Answer

### Why is there a humming noise coming from the right, front bottom corner of my microwave when not in use?

That is because the power transforme is located in that area and being a transformer uses iron laminations to transform the energy from the primary winding to the secondary winding/s using magnetism caused by the alternating currents. This in turn produces eddy currents that excite the iron and cause vibration to be set up, (the principle is similar in a loudspeaker). That is where the noise is coming from.
Tightening up the laminations may help but it is normal for a small amount of humming/buzzing noise dependent on the manufacturing process of the transformer.
I hope that explains it for you.

Oct 28, 2010 | Hotpoint RVM1435 Microwave Oven

1 Answer

### Microwave won't work

Check the AC fuse in side the oven. If the fuse is ok chek the low voltage transformer . If the primary winding is open replace the transformer.

May 25, 2009 | Frigidaire FMT148GP Microwave Oven

1 Answer

### Kenmore Micro/Oven fuse keeps blowing

Disconnect the connector to the primary winding of the high voltage transformer. Put a new fuse . If the fuse is not blowing the problem may be in the secondary side of the high voltage transformer. Chek the highvoltage diode, capacitor, magnetron respectively. you can also check the primary winding of the low voltage transformer.

May 23, 2009 | Microwave Ovens

1 Answer

### No power problem

Check the AC fuse and the low voltage transforer primary winding open. If it open replace the transformer or rewind it.

May 22, 2009 | Sharp R-316FS Microwave Oven

1 Answer

### LG MS-2143RSL MICROWAVE OVENT NO HEAT

hi i am suggesting that it is probably the magy as the res to grndis a bit low and therefore loading the sec supply down , just a thought
cheers grant

Oct 23, 2008 | LG LRM1250 Microwave Oven

2 Answers

### Any Whirlpool Microwave Techs out there...Please help a fellow tech

hi mike,

I’m sorry to tell you this but; I wouldn't recommend using a different transformer, even if it's the same size, it could cause serious damage. The HV transformer should only be replaced with the exact replacement part.

Mar 21, 2008 | Microwave Ovens

#### Related Topics:

292 people viewed this question

## Ask a Question

Usually answered in minutes!

Level 3 Expert

9098 Answers

Level 3 Expert

17130 Answers

Level 2 Expert

110 Answers

Loading...