REFERENCE Portable Bluetooth Speaker

[esprugodoys]

Issue: No Power

History: Bigla nalang ayaw mag ON

Troubleshooting

-check battery... ok
-check supply line... ok
-check button switch... ok
-check VCC in main IC... ok
-check voltage on main IC pag press ng power supply switch (switch pin)..... missing.

Solution:






Pinahirapan pa ako saglit nito dahil wala akong mahanap na schematics ng main IC, malamang custom-made or rebranded ito ng mga intsik kaya mano2x ko nalang trace at intindihin ang design ng switch circuit. Na tsambahan din...

Sana makatulong...