tek 2712 identification of a destroyed component

claude pages

Aug 7, 2026
3
Joined
Aug 7, 2026
Messages
3
Bonjour. Après avoir allumé un Tek 2711, j'ai entendu un claquement et senti une odeur de brûlé. Un composant à l'arrière de la carte d'alimentation a explosé, projetant des résidus de matière isolante grise. Après nettoyage, l'appareil fonctionne parfaitement, mais la colle grise continue de couler au fond du boîtier. Je n'arrive pas à identifier ce composant, et il n'est pas référencé sur les schémas. Auriez-vous une idée ? Cordialement.

Google translation:
Hello. After turning on a Tek 2711, I heard a pop and smelled something burning. A component on the back of the power supply board exploded, ejecting residue of gray insulating material. After cleaning, the device works perfectly, but the gray glue continues to leak into the bottom of the case. I can't identify this component, and it's not shown on the schematics. Do you have any ideas? Best regards.

Moderators note : this is an english only site, please use only english over here.
 

Attachments

  • powerboard.jpg
    powerboard.jpg
    60.9 KB · Views: 9
  • powerboard_2.jpg
    powerboard_2.jpg
    80.7 KB · Views: 9
Last edited by a moderator:

danadak

Feb 19, 2021
1,084
Joined
Feb 19, 2021
Messages
1,084
Your picture not well focused to help you determine what it is. Pre explosion.

How many electrical connections to it ?

Given a liquid of some sort internal to it could be a battery or a classic
electrolytic ....

The liquid may be caustic/acidic so cleaning the board imperative so it does
not eat any traces and cause further damage.
 

claude pages

Aug 7, 2026
3
Joined
Aug 7, 2026
Messages
3
Bonjour, merci pour vos réponses rapides. La photo de gauche provient d'Internet ; celle de droite montre le composant sur ma carte d'alimentation. Je me demande s'il s'agit simplement d'un isolant empêchant la carte de toucher le boîtier métallique, car son épaisseur correspond exactement à l'espace entre la carte et le métal. Aucun marquage sur le schéma n'indique la présence de broches ou de fils à cet endroit, et le support semble être collé à la carte. Honnêtement, j'ai peur de faire une bêtise en essayant de le décoller.

Google translation :
Hello, thank you for your quick replies. The photo on the left is from the internet; the one on the right shows the component on my power supply board. I'm wondering if it's simply an insulator preventing the board from touching the metal casing, as its thickness corresponds exactly to the gap between the board and the metal. There are no markings on the schematic indicating the presence of pins or wires in that location, and the bracket appears to be glued to the board. Honestly, I'm afraid of damaging it by trying to remove it.

Moderators note : this is an english only site, please use only english over here.
 
Last edited by a moderator:

Martaine2005

May 12, 2015
5,299
Joined
May 12, 2015
Messages
5,299
Can you see the reference designator for that particular component?.
Your photo is not sharp enough to see.
But as mentioned above, more than likely a battery or electrolytic capacitor.
Edit: you see no markings for it.
 

claude pages

Aug 7, 2026
3
Joined
Aug 7, 2026
Messages
3
Bonjour, mystère résolu : il s'agissait d'un bouchon en caoutchouc recouvert d'isolant qui avait fondu sous l'effet de la chaleur et du temps. Je l'ai ouvert : il ne contient aucun circuit électronique. Merci pour votre aide dans cette investigation. Cordialement.

Google translation :
Hello, mystery solved: it was a rubber stopper covered in insulation that had melted due to heat and time. I opened it: it contains no electronic circuitry. Thank you for your help with this investigation. Best regards.

Moderators note : this is an english only site, please use only english over here.
 

Attachments

  • 20260808_131031.jpg
    20260808_131031.jpg
    215.8 KB · Views: 2
  • 20260808_131056.jpg
    20260808_131056.jpg
    209.5 KB · Views: 2
Last edited by a moderator:
Top