SHIBBY's blog

Reverse engineering, experiments, embedded software/hardware development and random (but mostly radio centric) stuff…
  • Accueil
  • À propos…

Ouaps’s « Jojo » is not only a toy for your kid!

Ludo | 25 novembre 2012

Christmas is not too far away from now and Santa Claus already brought me a gift: a nice faulty electronic toy 🙂
When people usually take back the faulty device to the mall, I prefer to repair it myself as long as it’s possible (and also because I bought it from Amazon and I didn’t want to send it back since I could not find it elsewhere).
This toy called « Jojo pot de colle » (I only know its French name) was supposed to follow the kid, guided by a carrot shaped infrared remote control that the kid attaches to his wrist. Actually, it wasn’t able to do anything else than running round and round. So, my first guess was a battery issue: wrong! A motor issue: wrong too! So after opening it and re-soldering a broken wire with no luck, I’ve played with the oscilloscope around the IR receivers that the toy uses to move towards the kid. One of these receivers seemed to be faulty (no IR reception), but it was actually a PCB issue. These components pins are bent so much that one of them pushed the pad away from the single side PCB and broke the connection to the ground.
One more soldering later, the toy was working like it should have since the beginning.

http://dl.shibby.fr/blog.shibby.fr/Toy_repair/JojoPotDeColleRemoteControlProtocol.pdf

Catégories
repair
Flux rss des commentaires
Flux rss des commentaires

« The war is not over! Unbricking Linksys WRE54G and WAP54G – When you think you can start digging their graves… »

Leave a Reply

Cliquez ici pour annuler la réponse.

Catégories

  • Antenne (1)
  • DIY (2)
  • DVR (1)
  • Electronics (4)
  • Hack (5)
  • Non classé (2)
  • Radio (50)
  • Relais (6)
  • repair (6)
  • Website (1)
  • WiFi (1)
  • Zigbee (1)

Étiquettes

2.4GHZ 70cm 446 2400MHZ ADALM PLUTO aliexpress CODEPLUG COMP TEMP DATA CPS ESHAIL ES HAIL FIRMWARE FLASHRIB FTM-100 GM300 GM340 GM360 GM380 Kenwood MD-380 MD-390 MD380 MiniVNA tiny Motorola out of band PMR PROCOM QO-100 QO100 RC-10 RC-20 RIB RIBLESS SMA T856 TAIT THOMSON TM-241 TM-441 TMF TYT TYTERA vhf VNA WARIS
rss Flux rss des commentaires valid xhtml 1.1 design by jide powered by Wordpress get firefox