Re: Sharp LC-42SB48UT-a no standby voltage
Continue troubleshooting.
Service Lit. links earlier in this thread.
jts1957
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Last Activity: 11-18-2020, 11:50 PM
Joined: 12-13-2008
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Re: Sharp LC-42SB48UT-a no standby voltage
No.Leave a comment:
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Re: Sharp LC-42SB48UT-a no standby voltage
YesLeave a comment:
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Re: Sharp LC-42SB48UT-a no standby voltage
Set uses BOTH Cold (metal chassis, tuner cover, etc.) AND Hot grounds (Pin #4 of the bridge rectifier or negative terminal of main filter cap, for example).Leave a comment:
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Re: Sharp LC-42SB48UT-a no standby voltage
Be sure to look at 42", there is also a 32".
AcGeorgiegirl: 1st attachment wrong PS....Leave a comment:
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Re: Sharp LC-42SB48UT-a no standby voltage
SM available at ElektroTanya....Leave a comment:
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Re: Sharp LC-42SB48UT-a no standby voltage
It was in my 42".
Btw I see '5V' on schematic (top of C934). Did they leave 'STB' off?...Leave a comment:
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Re: Sharp LC-42SB48UT-a no standby voltage
Do you have a external 5 volt supply that you could connect to the lower than normal 5V to see what happens?Leave a comment:
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Re: Sharp LC-42SB48UT-a no standby voltage
"Measure" another battery. Report battery 'type' and reading you obtained.Leave a comment:
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Re: Sharp LC-42SB48UT-a no standby voltage
A little constructive criticism: I think you should start with the TV in the condition with everything soldered in / plugged in / boards secured. Back cover should be off. Then follow the instructions one by one.Leave a comment:
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WELL , WELL , well !!!
Howdy ...
When I first posted here I did a search to see if you were a member...
Got no results...
So , apparently you are hidden here also...
But , it's GREAT you are here...
GOOD to see you again....
Have a GREAT day...
Later..Ron.M...
...
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Re: General ? concerning PS_On and other DC voltages from PS to MB
I also had a VF550M (Main= 3655-0062-0150 (4C)) with 1.2 volts at PSON. Applying 3.3 volts from an external power supply would allow the set to work.
Trying to follow a foil trace that at times feeds through from one side of a PCB to the other is a challenge. Best I can speculate is a pin on the large heat sinked (Micro?) puts out a voltage that goes to R11/C19 junction AND along the way heads over to Q5 base/Q7 collector.
Anyway, checking for a convenient point that has zero volts with...Leave a comment:
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Re: KDL-37XBR6 has no picture but has sound
Pin 10 cannot be both ground and 12.3V...Leave a comment:
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Re: Samsung UN32F5500 with bad LEDs
Lens has NO electrical contacts. Has three plastic pins that go through the board and are melted / crimped over from back side to secure....Leave a comment:
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Re: Samsung UN32F5500 with bad LEDs
1) People 'lie.'
2) Check backlight controls and reduce any that are set at 100%.Leave a comment:
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Re: Samsung UN32F5500 with bad LEDs
'Diode' has TWO solder joints.
'Lens' has THREE points securing.Leave a comment:
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Re: LG Backlight out, Please Help
Unfortunately ALL manufacturers make their money by selling TVs, NOT parts.
They may have a very limited supply of Panels, LED strips, or possibly the individual LED bulbs, but whatever they have would be furnished for warranty purposes.
Of course, you can try to find a replacement LED with similar characteristics, possibly Digikey, Mouser or even one from a similar strip.
I seem to recall reading, i believe it was here, that dead LED could be bypassed with a regular diode.Leave a comment:
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Re: LG Backlight out, Please Help
YES!
You've received the SAME answer on (at least) three forums.
Disassembly of panel until you can see ALL LEDs at once, or remove from panel and hook them back up.
[url]http://www.ebay.com/itm/LG-LC320EUH-SC-A4-LED-STRIP-3660L-0346A-/180571777615[/url]Re: LG Backlight out, Please Help<br...://www.ebay.coLeave a comment:
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Re: Toshiba 42HL196 repair
From one who uses that site all the time, ALL appears to be there once you 'GET MANUAL' and unzip the resulting.
PDFs allow preview ... Zips DO NOT allow a preview....Leave a comment:
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Re: Browsing some sites CPU Temp goes higher!
Sure you didn't mean flesh?
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