Elenco Auto-Scan FM Radio Model FM-88K Capacitor 22 Replacement

Introducción

Nothing is more disappointing than building a radio just to find that it refuses to catch any signal in the FM world. I have come to find that this can occur in the Elenco model when the capacitor, C-22, is either broken or disconnected. This guide should be adequate in showing you how to remove and replace the capacitor.

Qué necesitas

Paso 1 Removing Unnecessary Pieces

Remove the battery and the antenna.
Pre-heat the soldering iron.

Editar

Paso 2 Removing the Solder

Place hot solder iron on thermal pad, capacitor lead, and the mound of solder until solder liquefies.
Apply desoldering pump to remove the solder from the circuit board.
Repeat the instructions to remove solder from the adjacent solder mound.

Editar

Paso 3 Removing the Capacitor

Gently remove the capacitor by pulling the two leads out of the circuit board.

Editar

Paso 4 Installing the New Capacitor

Place the leads of the capacitor through designated holes of the circuit board.
Place solder iron on the thermal pad and the lead.
Once this is done wait a few seconds until both items heat up.
Once they are heated, apply the solder to the other side so that the solder iron and the solder are not directly touching.
Wait 3 to 5 seconds or until enough solder covers the whole pad and forms a nice mound.
Remove the solder, leaving the solder iron on the pad for 2 to three seconds, then remove the solder iron.
Repeat for the other lead.