OHMWORK 2018 JUNE & PDF FOR TESTING INTERMITTANT LED'S


OHMWORK 2018 JUNE & PDF FOR TESTING INTERMITTANT LED'S

Product no.: OHMWORK2018JUNE


can be shipped within 1 days

  • THIS IS THE DOWNLOADABLE VERSION OF OHMWORK THAT WAS SENT OUT IN JUNE 2018
  • ADD PRODUCT TO BASKET AND CHECKOUT.
  • GO INTO 'MY ACCOUNT', 'MY ORDERS'
  • YOU WILL FIND THE PDF'S FOR DOWNLOAD
  • A COPY OF WHICH WILL ALSO BE EMAILED TO YOU

Welcome to June OhmWork

I know its nearly July but its been a busy month with our World Cup Football Competition.  We're half way through it now and to everyone who entered I hope you are enjoying it!  I'm still amazed the Francy and Stu managed to predict 14 of the 16 teams going through to the last 16.  Francy is storming ahead on 110 points with everyone else trying to catch him.  The closest is Dave Beyga on 98 points then Artur & Stu (SJSTV, yes I know you all love him!) Currently in last place and hoping to win the covetted Booby prize is Phil Ward!

Due to the success of this competition we hope to run more in the future. If you have any suggestions for future competitions please give me a shout. michelle@ohmsupplies.co.uk

The rest of June has been topsy turvy on the repair front. We have had some good faults though which has kept Andy's brain ticking over, just, I'm sure a midweek England game will take its toll on him half way through today!

 

 

Our services

We do offer repair services on various boards for those unable to do them. Popular ones are:

REP122, which is the ISL9860 IC fitted to the Samsung 32" Tcon board.

REP128 is a replacement Nand IC fitted to the Samsung Main Boards of the D5520 range.

The parts for both of these repairs are also avaiable seperately ISL9860 NAND01. 

Don't forget when fitting the NAND IC to download our free datsheet on NAND SET UP.


We hope that you will visit our shop soon.
Best regards,

OHM SUPPLIES LTD

 

LED Faults & Fault Finding.

All of us can say that a majority of the repairs coming throught the door are attributed to LED failure and Power Board faulty Backlight Driver IC's.  This months datasheet is on fault finding on the LED as we are seeing more intermittant faults that are not always LED failiure. Thanks to Ian Middleton for flagging this up for us, especially since Andy was in the middle of searching for an intermittant fault when you let us know!

Make sure you have your LED TESTER, which can help in diagnosis, especially when you have a switched current output.

We stock a vaiety of LED's which can be fitted on most TV's.  Both  Backlit and Edgelit.  If we don't stock the one you need please call us.

We also stock LED Driver IC's which are contantly being updated with more stock.

 

NEW PRODUCTS

We have begun to stock replacement LED Arrays as well as the single LED's we have always stocked. The ARRAYS use an Aluminium substrate which means better heat dissapation throught the LED Strip.

ARRAY03 LC47DUE  Popular LG Screen 47LN540 etc

ARRAY05 LC320DUE LC320DUE

ARRAY06 SVH500A24_5LED_REV6 HISENCE HD500DF-B54

More Arrays are due in next month, including the LC420DUE, LC470DUH. Please call if there's an ARRAY you need specially.

And Finally

Andy got an easy repair today on a Polaroid P50D100, which had no picture but the backlight was OK. The screen is a V500HJ1-XCME1.  The Output of the Main Board goes directly to the Screen PCB.  If you use the half split method then you maybe lucky enough to get half a picture after disconneting one of the ribbon cables. After which Andy found a s/c smd capacitor C012.  He gets all the easy ones!

I'm seeing alot of Eeprom faults on Vestel Main Boards where they won't accept the software update because of corruption.  We have a range of MASTER RECOVERY EEPROMS. You need to fit the Master Recovery Eeprom and then update the software to the correct type.  We do also stock a range of Vestel Eeproms for the exact Make, Model, Main Board and Screen type.

I have to say this week has been full of programmable IC faults, Eeproms, Nands, MCU's etc.  Do we think its the heat?  I'm still waiting to hear about Tropospheric Ducting from Ivan!

Well thats me signing off to find somewhere cool before heading back into the workshop heat!  Happy Repairing.

 

 



How to reach us:
OHM SUPPLIES LTD
UNIT 54 FARRIERS WAY IND EST
L30 4XL LIVERPOOL
Phone: 0151 523 3817
enquiries@ohmsupplies.co.uk

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