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Fujitsu Siemens ScenicView P19-2 Monitor: Constantly Blinking LED

Raiz3n 8983 11
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  • #1 11109196
    Raiz3n
    Level 11  
    Hello, I recently bought a used monitor on the allegro Fujitsu Siemens ScenicView P19-2. The monitor came from 3 weeks and was used about 6 times after which it stopped turning on and the blue LED was constantly flashing. I undressed it and found a burnt element marked on the power board (S.18 64). The coil plate slightly changed color and a little tin melted from the bottom. I attach photos and I am asking for the name of this part and marking, I will look for the Allegro or go to the electronics store, buy and exchange.
    Fujitsu Siemens ScenicView P19-2 Monitor: Constantly Blinking LED Fujitsu Siemens ScenicView P19-2 Monitor: Constantly Blinking LED Fujitsu Siemens ScenicView P19-2 Monitor: Constantly Blinking LED Fujitsu Siemens ScenicView P19-2 Monitor: Constantly Blinking LED Fujitsu Siemens ScenicView P19-2 Monitor: Constantly Blinking LED Fujitsu Siemens ScenicView P19-2 Monitor: Constantly Blinking LED
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  • #2 11109370
    Jakant
    Level 35  
    It is a zener diode, what voltage you need to see what is supplied by the pins behind it. Waste it and measure the tension at its soldering points. If she was so hot, there must be a fault in the line that she protects.
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  • #3 11112303
    Raiz3n
    Level 11  
    Today, I desoldered this diode, in total it crumbled in my tongs and desoldered the rest. On the line where there was a diode everything looks fine but I can not find my meter for china and I can not measure anything right now. I saw here on the forum that someone had a similar problem and maybe this is the solution for me?
    https://www.elektroda.pl/rtvforum/topic1062016.html?sid=0192dfd116a6d290404cbd37be54d938 my diode mark is ZD920, maybe a friend did a typo and it's the same?
  • #4 11115631
    michal_alf
    Level 11  
    I have had the same problem with P17-2 for a few days. When turned on, the blue LED flashes. After about 20-25 minutes, it starts to flash a little slower and there are small flashes of the image and after about 5 minutes the monitor starts to operate normally until the next long shutdown.
    The start sequence is like in Apollo13 :)

    Can I count on it to be structurally similar to P19-2? And the reason may be similar? Because now I do not have too much to dig inside, but in the coming days I will take it for sure it would be good to have some tips :)
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  • #5 11115671
    captain4
    Level 25  
    michal_alf wrote:
    I have had the same problem with P17-2 for a few days. When turned on, the blue LED flashes. After about 20-25 minutes, it starts to flash a little slower and there are small flashes of the image and after about 5 minutes the monitor starts to operate normally until the next long shutdown.
    The start sequence is like in Apollo13 :)

    Can I count on it to be structurally similar to P19-2? And the reason may be similar? Because now I do not have too much to dig inside, but in the coming days I will take it for sure it would be good to have some tips :)


    In your case it looks like the electrolytic capacitors of the power supply have a secondary side for replacement.
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  • #6 11119553
    michal_alf
    Level 11  
    I undressed LCD today. As you wrote captain4 , one of the capacitors (1500uF 10V) was swollen. I found some (1500uF 25V) in the house, a bit bigger, so on the cables, to fit under the cover :) . After folding the monitor started immediately (despite about an hour's break). So perhaps the problem is averted. I will make sure tomorrow after the night is turned off, but I think it will be good.

    Thank you for your help.

    Raiz3n I hope you'll forgive me for connecting to your topic :)
  • #7 11123115
    Raiz3n
    Level 11  
    Cool, I still do not know what to do. The main board of the monitor looks good, the elek do not swell the whole paths, in that area my friend used a 7.5V diode only which I can solder 0.5W or 1.3V because I do not know which order.
  • #9 11123184
    Jakant
    Level 35  
    Raiz3n wrote:
    I can solder 0.5W or 1.3V

    And what is the question and where from this symbolism
  • #10 11123210
    Raiz3n
    Level 11  
    On allegro I found diodes with the given power of 0.5W and 1.3W hence the symbolism. Can I solder sod80 instead of diode in sod123?
  • #11 11130558
    captain4
    Level 25  
    Sold in and check how it works.
  • #12 11158286
    Raiz3n
    Level 11  
    Today, the diodes come, however, after soldering the problem remains, the diode shines only a little brighter or it seems to me, after the power supply is disconnected, another 5 seconds is flashing. I do not think it's my strength and I leave the monitor to a professional, thank you for your help.
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Topic summary

The discussion revolves around a malfunctioning Fujitsu Siemens ScenicView P19-2 monitor, which exhibits a constantly blinking blue LED after limited use. The user identified a burnt component on the power board, suspected to be a zener diode (ZD920), and sought assistance in identifying and replacing it. Responses included suggestions to check the voltage of the diode, inspect electrolytic capacitors, and consider similar issues with the P17-2 model. One participant successfully replaced a swollen capacitor, restoring functionality, while others discussed diode specifications and potential replacements. Ultimately, the user faced persistent issues even after replacing the diode and considered professional repair.
Summary generated by the language model.
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