single timer

Short IC | Stephenwenceslao timer | Remedy

Submitted by stephenwenceslao on Thu, 07/14/2022 - 11:20

When the IC is shorted the usual cause is the 7805 regulator is the problem. Just replace the regulator and IC to make it work again.

UPDATE:
Replace the rectifier diode and regulator just to make sure the IC will not be damage.

short circuit ic replace 7805 regular

Submitted by stephenwenceslao on Wed, 07/13/2022 - 12:53

After soldering the IC and cool it down. Need to clean using lacquer thinner to avoid short circuit.

Clean IC after solder

Submitted by stephenwenceslao on Tue, 06/21/2022 - 10:26

Pag mag testing ng timer ay wag niyo i grounded ung board sa metal or kamay para hindi mag malfunction pag test.

blog testing single timer board