Question about Samsung Televison & Video
Did you try the flashlight test?
Posted on Dec 24, 2017
If you want all the USUAL SUSPECTS...
(there are really only two)...
The "SOUND" mention... is it the power up tones...
Or are you getting BROADCAST AUDIO...
If you are getting AUDIO that narrows the focus
to your POWER-BOARD (ESPECIALLY poor Samsung
(famous for their cheesy capacitors (in my opinion))).
i SINCERELY BELIEVE... power on/off tones
mean your MAIN BOARD (RECEIVER+ LOGIC)
"think" your POWER BOARD is okay...
>> Typically a BAD ASSUMPTION.... <<
Samsung model number Ln55b640r3f
Unless you are willing to follow some very simple precautions...
DO NOT BOTHER to read any further...
- You MUST buy and WEAR anti-static WRIST-BAND when NEAR
any SEMICONDUCTOR circuits you care about.
- Every wire, clip & screw MUST go back EXACTLY where it came from... Take lots of pictures (in case you lose track).
- Force NOTHING... if a ribbon cable does not come out... LOOK VERY closely for a release clip (bright light + magnifier).
- Stay FAR away from Samsung Parts USA (in my opinion)
I'd rather invest money with BurnMe MadeOff... SERIOUSLY.
The premier PACK site (SHOPJIMMY)
says your back-light board is a BN44-00268A
Search results for Ln55b640r3f power board
You need to look at that board yourself to VERIFY.
Now that you have a verified number you can
shop on eBay for bargain prices (like... for $70)
Samsung Bn44 00268a 12 23 12 eBay
"Part came from working television" is all you really need to be FULLY PROTECTED by eBay...
Or today... (in my opinion (used to be a BIG fan))
SEARS DOES NOT LOOK as BAD as USUAL... $145 ++
Television Power Supply Board Part Number BN44 00268A Sears PartsDirect
FINALLY... (in closing)
There is a VERY talented TV trouble shooter on youtube
I love to watch... "TAMPATEC" (as a big confidence builder)
He does TWO things I vigorously oppose...
- Live work (POWER ON... Apprentice should not try).
- No WRIST-BAND... Yet even he in SOGGY (very humid)
Tampa Florida (usually safe) managed to SPARK out
(ruin) a close-by T-con board he was working near...
Watch a couple... GREAT Fun: (just remember my rules)...!!
LED LCD TV REPAIR GUIDE How to troubleshoot without meters or testers
SERIOUS PROFESSIONALS wear ESD WRIST-BANDS...
$6 Electro-Static Discharge (static) wrist-band:
Amazon com Rosewill ESD Anti Static Wrist Strap Components RTK 002 Black...
Hope this inspires...
Posted on Dec 24, 2017
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Posted on Jan 02, 2017
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