Re: Samsung LE32M87BD - stuck in standby - blinking LED
12v
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
Are those 12.05V lines testing at 12V or 13V? Just to check, they are marked 13V on pin out.Leave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
23. 0.01 - 0.01
21.12.05 - 12.05
19. 0.00 - 12.05
17 0.00 - 0.00
15. 5.40 - 5.40
13. 5.40 - 5.40
11. 0.00 - 0.00
9. 0.00 - 0.00
7. 11.99 - 11.99
5. 0.00 - 0.00
3. 0.00 - 5.22
1. 0.00 - 3.41Leave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
brill thanks
ok here they are as you look at connector
0.01 - 0.01
12.05 - 12.05
0.00 - 12.05
0.00 - 0.00
5.40 - 5.40
5.40 - 5.40
0.00 - 0.00
0.00 - 0.00
11.99 - 11.99
0.00 - 0.00
0.00 - 5.22
0.00 - 3.41Leave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
If your probe pins are too fat , a lot of people have used a sewing needle inserted into each
socket hole and take the reading off the needleLeave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
I do literally just press the probe into where the wire meets the connector, with it installed. With light pressure your probe will touch the metal sheath around the pin which is usually less than a mm in. You can also use the metal chassis as ground.
I don't have a schematic for this PSU unfortunately, but I found this service manual:
Page 132 - pin outs.
"B" volts - active when not in standby
"A" volts - always active
Main_PWR_CTRL - on/off signal to PSULast edited by tom66; 01-22-2014, 11:31 AM.Leave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
me being thick im getting readings from the mainboard end not the PS end - i will post all in 1 minLeave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
here is a pic of the connector plugged in my probe wont fit any whereAttached FilesLeave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
bn44-00156B - im not sure what you mean, if i push from the top i get no readings as its not touching the metal - if i take the plug out i can then reach all the pins to measure.Leave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
You can just press your probe into the point where the sheath meets the pin.
Is there a BN44-####### part number printed on the PSU somewhere? (# = any digit)Leave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
have i got to bridge 2 pins to turn the ps on so i can check voltages at the plug ?Leave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
yeah they are but i have no way to stick my DMM in when the plug is connected - sorry if im being thickAttached FilesLeave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
Check voltages on PSU outputs. Are they labelled?Leave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
there was a screw missing from the PS so some one has been inside here also on the back of the PS there is some stickers, they are not ment to be there so the PS has been replaced at some point it looks likeAttached FilesLeave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
Samai - when the power is removed from the inverter board i get 6 flashes then off for a min then 6 flashes again, no more back light coming on
tom66 - must be the pic iv triple checked and all look okLeave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
Is it me or is one of those capacitors on the power supply slightly bulging?Leave a comment:
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Re: Samsung LE32M87BD - stuck in standby - blinking LED
disconnect the the inverter board , turn it on, same cycling or different result ?Leave a comment:
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Samsung LE32M87BD - stuck in standby - blinking LED
Hi all
This is my first attempt at an LCD repair
When plugged in the LED blinks 5 times then trys to power up the screen
Back light comes on for a second then goes off and the LED starts blinking again
If i leave it plugged in for 5 min then the back light will power up but nothing responds on the TV except off on the remote or button then the cycle starts again
attached are photos
can you advise me on where to start as i said this is my first LCD tv as i have only worked on plasma'sAttached Files -
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This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 05:50 AM
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This is my first attempt at troubleshooting a board like this, I know I could just buy a new board but I'm curious to figure out how this works. I've been testing different components in the evenings this week and I think the problem is with the IC failing to start up for some reason. When the board is plugged in there is no standby voltage.
Then today it randomly sprung to life like a zombie but shortly died thereafter. I have no idea why it would have done that and its the first time I've seen it running. I discharged capacitors on the board last night, then it was sitting today.... -
When the Main board is disconnected, the back lights are off but tapping on the chassis makes them light up and all voltages are then good. Connecting the main board up makes the TV work normally until moved. LED INERFACE STRIP BN41-01971A has a short on the first 2 pins on the left of the picture, the cable tests good. All the other pins and all LED strips test good. Is there an easy way to fix the short or do I need a new interface. Any help would welcome.
PSU number bn44-00610A L46SF_dpn
1 B13v 12.4
3 B13v 12.4
5 Vamp 12.4
7 Vamp 12.4
9 GND... -
Hi techs, I have a Samsung ua39eh5003r which switches on and then goes to standby. I have to wait for a day or two for the tv to switch on again, all the time it is stuck on standby. I have checked the voltages on the power supply board on both occasions when it is on and off and these are my findings:
Connector CNM803:
TV ON
Pin1,3,4,5(Vamp),7(Vamp)- 12.6V; Pin2(PWM_DIM)- 0.96v; Pin6(BLU_ON/OFF)- 4.41v; Pin8,9,10- grnd; Pin11,12,13- 5.16v; Pin14(Power ON/OFF)- 3.3v
TV OFF
Pin1,3,4,5(Vamp),7(Vamp)- 12.6V; Pin2(PWM_DIM)- 0.06v; Pin6(BLU_ON/OFF)-...09-18-2021, 11:51 AM -
A sports bar/restaurant with ~40 Samsung Plasma TVs. This is the 2nd TV that has a blinking standby LED. I'd like to learn how to repair these TVs because I'd guess that over time more and more of them will develop this symptom. My hope is to repair the bad PCB, however if that's not realistic then I'd replace the bad PCB.
Model PN60F5300AF, Type PN60F5300, Model Code PN60F5300AFXZA
Upon applying power, the red standby is steady. When I tap the power button, the standby LED immediately blinks twice, then it blinks once ~ every 4 secs. Also, Upon applying power, the...
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