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Faulty psu MD30112 LG 32

MD30112IC21(FSD200), blown 2x pins blown away looks like it arced to a wire rail every thing else looks fineneed to know where i could get the chip from or could there be alot more damage. tested other power outputs
and there reading ok

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I had my MD30112 PSU blow up recently. I shipped it to Ohm Supplies and they fixed it and shipped it back to me for just over £50. I think they sell a repair kit too.

Posted on Jun 02, 2008


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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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Fault code 3F? Westinghouse smart drive LT819S

i found this answer in another place

The F3 is as follows,

F3= Motor Sensing Fault.

Either the motor is faulty, or the sensor attached to the middle of the motor is faulty.

You can check the windings on the motor for correct resistances at the wiring connections on the harness plug.

Pins 1/2 should be 32 OHMS,
Pins 2/3 should be 32 OHMS,
Pins 1/3 should be 42/44 OHMS,

Any other readings apart from that means the motor is stuffed.

To remove it, undo the motor wiring connecter, undo the 2 bolts (1 on either side) of the motor and lift the motor away from the base of the machine. Also, you may have to undo the motor sensor wiring connecter also*

If the readings check out, then you need to replace the motor sensor which is attached to the very middle of the motor, visible from underneath looking up at the motor.


Mar 09, 2015 | Westinghouse Washing Machines

1 Answer

Screen black fault

black after 15mins is psu fail

replace ALL the electrolytic capactiors on the psu
this includes the mains 350 or 400V types
then retry....

try to find any faulty CCFL tubes using there feedback
from each ccfl transformer

you could just find one tube has failed

look too you tube for CCFL replace etc etc
look more to a faulty single tube here

Oct 10, 2014 | LG 32LG30 32 in. LCD HDTV

1 Answer

Green and black pins are short but smps is not working

Have a look at this
article which tells you what your PSU connections should look like.
You are right in supposing that connecting the green wire (pin 16 in the article) to any of the black wires will turn your PSU on - a straightened paper clip is often suggested for this purpose. Some manufacturers, notably Dell in their earlier computers adopted a non-standard pin-out for their PSUs (I don't know what colour the wires are for that case. To read about Dell pin-outs see the link at the bottom of this

If you are unsure you might try a PSU tester (eg see this Amazon webpage for plenty of examples). This may give you a better idea.

Of course it is more than likely that your PSU is defective. Try a spare PSU of the correct spec. in your computer.


Feb 24, 2014 | Computers & Internet

1 Answer

I have a Compaq Presario SR1830NX desktop, I leave it on all the time, when I got up this morning, it was off, so I pressed the power button, but it doesn't power on, nothing happens.. I checked the power...

step 2 the TECH uses a voltmeter and checks all wires on PSU for correct voltage.

PSU in Desktop dead, my guess fans dead too right>
you never said, what it does inside PC ,except nothing
does nothing mean dead silence?
the fan must run for 1second, then goes off.
a 1 second run tells me the PC power switch told the MOBO to turn on and in turn it tells the PSU to turn on,
the PSU then turns on for at least 1second,and if the voltages are ok
then the PSU stays on, else off goes.

15 and 16?
the 20 pin older supplies those are both ground
but 24 pin ATX pins are correct there.
the voltages are here.

There are 2 causes, of dead power button.
1: the buttons 2 wire cable ends fell off. at button or PC mobo.
2: The PSU is bad.
3: the MOBO is bad.

The mobo can also shut off any PSU, if the PSU fails
or it sees the regulators in the MOBO fail.
the Desktop runs on many power rails.
some in the PSU, others on the MOBO.
THe mobo creates special low voltage for the CPU.

the power good pin, does that #8,
One way to see if the MOBO is overload
is to remove things from it, I start at RAM
lacking a voltmeter, this is very hard to fix any thing electric.
only guessing or pulling objects PC can find shorts.
pull all power cables there, hdd, power, cdrom.
all things that use red/yellow wires.
all SATA cables, all USB , then ram. even a fan can short
a good tech keeps an open mind, and finds why the PSU shut down.
in most cases, the PSU is bad. but not always.

This is a feature, of ATX it keeps you from blowing up say a
$300 microprocessor.... or fancy gaming Video card (have one)?
yes, pull the video card too.

Jun 25, 2017 | HP Compaq Presario SR1630NX PC Desktop

1 Answer

Chopper transister blown fuse blown

100k ground from ic pin replece 3 electrolytic cap . Adjust preset for 95v if it isphilips tv

Aug 17, 2009 | Televison & Video

2 Answers

Dead set,flashing standby led

Have ordered new electrolytics for psu and will overhaul this when parts arrive.
Any further comments thro your site would be welcomed.

Jun 19, 2009 | Medion MD 30262 32 in. LCD TV

1 Answer

I would like to know how to troubleshoot a brand new Ultra LS600 power supply. I would like to go beyond hearing "it's dead" since I am getting power to the motherboard (via indicator light)m but the PSU...

You can start the PSU manually with a paper clip.
Remove the 20 pin connector from the motherboard, leave the four pin power connectors attached to your various drives (this will provide a load on the power supply when it start up (provided it is not faulty).
Look at the 20 pin connector with the connector facing you.and the locking clip to your left.
The fourth pin from the bottom LH corner should be a green colour wire and the next two wires (5th & 6th pin) should be black and next to the locking clip.
Straighten a paper clip and insert it into the 4th pin and into the 5th or 6th pin (ie connect these wires together). These wires connect to the front panel switch to turn on your computer. You are testing the power supply only and since it is not connected to the motherboard the computer won't start.
Now connect the power unit to the mains and switch on the mains, if the power supply is OK the PSU fan should spin up and your hard disk should also spin up. If nothing happens the the PSU is faulty.
You can test the +5volts and +12volts supply on a 4 pin power connector with a multimeter. The red wire is +5volts and the yellow wire is +12volts and the black wires are negative (ground). The voltage readings should be within 5% of these voltages.
There are other voltages to be checked +3volts, -5volts, & -12volts. but these are not as critical.

Dec 05, 2008 | Ultra Products Ultra LS600 Lifetime Series...

2 Answers


Order Code….. KT02
BUSH MAXIM 1157 1154 Medion
Goodmans (Standard) 04TA069I 05TA71B 05TA071C
A standard power supply repair kit for faults attributed to the standby +5v rail.
MAXIM 1154, 1157.
The numbers off the boards will read: 04TA069I 26” 27” 30” 32”
& 05TA71B, 05TA071C.
Please check the primary of TR20 before fitting the kit.
Primary windings should read approx 2.700mH / 4.00 Ohm.
We recommend all kits are fitted by qualified engineers
We accept no responsibility for loss, injury or damage caused by your use of this kit as a successful repair
depends on your own skill and fault finding ability.

Circuit Reference
Loc Description
F300 T3.15A FUSE
IC21 FSD200
D315 12V ZENER
D318 2V4 ZENER
Q300 BC337
Q302 BC848C SMD
D325 1N4007
C213 33UF
C322 47UF
C356 47UF
C330 1000UF

Oct 31, 2008 | Televison & Video

2 Answers

LOGIK LCXW32HD1 TV TV had total failure took for repair told that the power supply was us and that parts are no longer available

I have had 3 of these sets, all with blown '+5V Standby' circuits. The culprit was the 8-pin DIL FSD200 controller chip. When it blows it takes out the little optocoupler, the small SM bridge rectifier (PCB underside) and the 20mm fuse. The FSD200 is hard to source, but Digi-Key have plenty at £0.88 each. They also sell replacement bridges, fuses and optocouplers. If you attempt the repair I recommend that you fit sockets for the controller and optocoupler. If you fit the opto round the wrong way the +5V Standby rail will try to rise to over 10V and the set's control logic may be damaged. Good luck.

Aug 09, 2008 | Televison & Video

1 Answer

Arcing between pins on CRT


Your problem is due to moisture in the the Crt base socket you will need to replace the white plastic crt plug I have tried to clean & dry them out but it never fully corrects problem.

As far as the pins & glass crt neck goes clean them with Isopropyl alcohol this will thoroughly clean all the carbon off.


Jan 08, 2008 | Panasonic CT-32HXC14 32" TV

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