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Proton am452 I need replace torodal ransformer on proton 452, and adon't know the sulpies of secundary transformer. Thanks in advance for any help

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Transformers are safety parts, they should only be replaced by the manufactory's recommended parts. Contact them for a supplier.

Posted on Mar 11, 2014


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017


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Proton 520

As transformers are safety parts you need one recommended by the maker of the amp. So I would contact them about where to get a new transformer.

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If you cannot get a ECU board from HP to replace the 220 volt model.
The easiest solution, use a stepdown transformer fro 22m to 110 volts. Make sure the stepdown ransformer has a power rating that can supply enought watts to run the printer.

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My proform treadmill stops when i reached around 30 to 40 minutes of exercise What's your problem?

Dear Sir:
I hope you are fine, and try it to help you.
The problem will be in electrical problem:
Disconect the power cord very important.
1) Check for continuity or short the power Cord with a DVOM( Digital Voltimeter) repair o replace
2) If the circuit breaker of the machine if tripped, Reset, 3) If the circuit breaker of the home or building are tripped, Reset.
4)Check the Voltage of the input of transformer, and secundary wind too. Smell if very hot or smoke? if this happen the transformer is faulty you must replace or rewind. But before you dismantling check the electronic component around, with DVOM, capacitor, resistor, diode, transistor is o.k or are faulty.
5)See if some wires is loosing tighted or solder it.
6) Finally the PCB will be faulty.Replace.
Thank you in advance, sincerely. Blessing.
If you need additional help, please reach me.

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1 Answer

My Bosch double oven timer is not working. No clock, notimer, but the oven is working fine.

Sure this is the failure off the unit but make sure that the step down transformer for the power to the unit is faulty or burnt. If so replace the transformer. If power goes tto unit without display then the processor can be faulty . Change the clock timer. unit if you need the timings.

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1 Answer

Screen switches on but image cuts out after 1

You will have to check the inverter transformer for open winding on the secondary side (common failure mode for the inverter ransformer), you can also have bad lamps due to bad soldering works on the end of the lamps. The transistors driving the inverter transformer check out OK out off the circuits?
See these pictures here for guide:
I will assume that you have measured the DC voltage feeding the inverter circuits and it is OK (about 12~18VDC).
Post some pictures will help.

Mar 30, 2010 | LG Flatron L1750S 17" LCD Monitor

1 Answer

How do you wire a transformer on a carrier unit?

depends if gas or electric on gas u have 120 volts if u have a universal transformer u will hve several wires and on the transformer it will say 120one color 240 another color and common is one color hook black wire to 120 wire and common to ur white wire from unit and ur 2 low voltage wires dont matter if it is electric use the 240 wire and common wire wires from unit dont mater just use the same 2 wires u unhookes and low voltage wires dont matter best advice is to put a 3 amp fuse inline on the low voltage side cause something caused the ransformer to go out and its probably a shorted wire this will blow the fuse instead of burning up the transformer

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2 Answers

A load buzzing sound comes out of the speakers. (Harmon/kardon). The transformer is very hot. Unplugged transformer. Unable to purchase a new transfor from E-Tech. They sent me the wrong part number. Plug...

Frankly speaking JIM , its better inversting in the new speakers. But however if you can tell the model number for the speakers , lemme check if we can find a power adapter for you.

Thanks for using Fixya

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1 Answer

Standard amplifier + Bose Lifestyle 12 Acoustimass module

well u didn't include any models # for the proton or "cubes" so all I can speak too is a simple heads up lesson about amp loading , most modern integrated amps look for a 4 ohm load for its speakers , this is saying total load , so if one was to connect say two speakers (plus to plus and minus to minus) assuming the speakers are 4 ohm already this would divide down to only 2 ohms (this would heat up the amp and affect it working ) but also if the speakers are say 8 ohms each then this divides down to 4 ohms (and the amp would see two as only one ) , also wire length between speakers counts as well , assuming most speaker rated size wire is say .023 ohms per foot this would also have to be added to the total load the amp see's , there are far more technical ways of running longer wires to other rooms but this involves impedance matching transformers and the like . so I'll not discuss them

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1 Answer

Proton 1100 Pre-Amplifier not working

The probability of a relay going bad is remote. This relay is part of the protection circuit and will not turn on if there are problems detected. If you can detail the parts that have been replaced, I may e able to determine the reason for the relay failure. Realize that some internal measurements may be required as well.


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I am not able find a substitute for my standby transformer.

Is this transformer internal to the Harman Kardon? Or is it something the HK plugs into?

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