Panasonic TX-32LX60P GLP21 Chassis TV: Standby Light Blinks Every 12 Seconds - No Functioning Signs

Question

Hi there is such a Panasonic TX-32LX60P GLP21 Chassis TV. Symptoms after switching on the network will light up after 12s blinks and goes off every 12s, no more signs of functioning. Maybe someone had a similar case.

zbyszekskibinski · Accepted Answer

I recommend, therefore, to do so:
1) Disconnect the LVDS cable from this board at the screen (Time-control) and re-check whether the voltage from the power supply is present.
2) If this does not help, disconnect the motherboard and check the power supply by forcing it to work with two pins connected in series and connected to the BL ON power supply and measure all output voltages.
3) as the voltage will change the main board, you probably will not be able to repair it, because it could be MCU, unless you can change the part.

radsat · Answer

What about the tensions?

Michaś 124 · Answer

It looks like they are all I will download the diagram and compare it

zbyszekskibinski · Answer

Buddy first see if you have the correct stby (5V) and whether the capacitors have 'puffed' on this line.

Michaś 124 · Answer

I am again I checked the voltage from the 12V power supply is stable, 24V will start for a moment and turn off, 5V what I write my friend I will check

zbyszekskibinski · Answer

If you have other voltages, you definitely have a standby as well. Unplug the inverters and see if you still have a 24V rigid voltage.

radsat · Answer

Check the voltage on SIG24V, AUD24V, RELAY24V.

Michaś 124 · Answer

After disconnecting the inverters, nothing changes 24V is for a moment and turns off, the relay switching on the inverters also does not control

Added after 1 [minutes]: < br />

SIG24V, AUD24V, RELAY24V. identically the same for a fraction of a second is and falls to 6V and after 12sec. he tries to start again

zbyszekskibinski · Answer

So the motherboard disconnects your power supply and you should look for faults on it. To confirm this, just give a voltage of 3-5V on this power supply pin where you have ON / OFF and all the voltages you should get

Michaś 124 · Answer

I think my friend Zbyszek is right, but where to start on the motherboard?

zbyszekskibinski · Answer

There often such a disconnection causes EEPROM (a 4-pin scalpel, I do not know how in your model, you should have 24+ letters on them) or Flash. Ultimately, the repair will be difficult the first time, at the beginning it is best to change the disc, and if you gain 'perfection' you can exchange individual scatter and memory. Check the elki at the beginning also.

radsat · Answer

Zbyszku motherboard yes or not power supply, but equally damage can be on the power supply, control of outgoing voltages, then it will be the same situation. In short, look ahead, measure and think.

Michaś 124 · Answer

EEPROM is 24c32 can put in a blank - you must be the original upload

radsat · Answer

I can see 8 pin here. And here the batch:

zbyszekskibinski · Answer

Yes, it can also be a power supply ... but to check it a colleague would have to charge something (for example, 24V bulbs) and measure tetnia. In principle, if all the voltages will be out. this theoretically should be ok. Koledze Michas, I still want to see if the BL ON / OFF voltage is stable after the start.

Michaś 124 · Answer

Or maybe col.radstar is right - maybe try to fire from external 12V, 24V power supplies and see what will happen

zbyszekskibinski · Answer

Ah, I'm sorry for a 4-pin on one side I was supposed to say ...

Michaś 124 · Answer

Thanks for the eeproma I will try Added after 39 [minutes]: < br />  The eeprom replacement did not help - my mother thank you all for today - I will fight again tomorrow

Panasonic TX-32LX60P GLP21 Chassis TV: Standby Light Blinks Every 12 Seconds - No Functioning Signs

Post #1

Post #2

Post #3

Post #4

Post #5

Post #6

Post #7

Post #8

Post #9

Post #10

Post #11

Post #12

Post #13

Post #14

Post #15

Post #16

Post #17

Post #18

Post #19

Topic summary