samsung stuck in standby and its a ps50a.457pid.at first it was clicking and taking a while to come on and but will not come on at all just red standby light on .i have taken the back of found a bulge cap in the psu witch is 2200uf 10v change it but no still stuck in standby any idears what it could be
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Re: samsung ps50.457pid stuck in standby
Likely main board at fault, very common on these models.
You can probably locate the test mode jumper on the control board and with the help of some resistors (100 to 470 ohm) between GND and PS ON, 5.3V and VSON, turn the power supply on and get test patterns, which will indicate the main board is bad.
https://www.badcaps.net/forum/showpo...61&postcount=2
Also common on some of these models are bad solder joints on the PSU causing same symptoms.
Oh, and hey, you're from Leeds too... home away from home for me.Last edited by tom66; 08-16-2013, 04:41 PM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
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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 -
Hello everyone,
I got a Samsung The Frame 55 inch TV for free from uncle cause it is not turning on anymore. I am in the second year of training as an electrician so I have knowledge already but I am far away from to be a pro.
The TV has Standby but ist not turning on. A Friend of mine owns a 50 inch Frame TV so I checked the One Connect Box and the One Connect Cable there. Both are good and working normally. I have opened the TV case and measured some voltages on the Board.
What I already found is that the 12.8V are not an the connector to the main board connector to the power...
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