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Automatic charging without turning on the power button

⟐ Commented October 05, 2025 at 18:05 MST

I was checking component suppliers and came across an IC called CS48L32-CNZR, which appears to be an audio processor / codec. I’m curious because I'm working on a phone/audio device repair project where the audio subsystem is acting strange (no output, distortion, etc.), and I suspect this chip might be part of the problem.

The device I’m repairing is a smartphone or a Bluetooth audio board (I’m not 100% sure). No audio output, or crackling / distortion when the audio should play. I can’t yet confirm that the CS48L32 is faulty, but it’s one of the components on the audio circuit.

Has anyone ever seen or replaced the CS48L32 (or a similar audio processor) on mobile devices? What were the challenges? How do you test whether an audio codec / processor is working properly? Do you use signal injection, reference signal tracing, or measure certain pins (e.g. clock, I²S lines)?

If I were to replace this chip (if confirmed bad), what are best practices?

If you have experience with diagnosing audio path faults in phones or embedded boards, I’d appreciate any pointers. Thanks in advance for any help or shared knowledge!

-Jordan

⟐ Edited October 05, 2025 at 22:59 MST

I am creating an IoT project using the ESP32, breadboard, IR sensor, motor, motor driver, batteries, and connecting wires. I am good at coding, so I am sure I wrote the right one, but my microcontroller IC is unable to connect with the IP address of my device. Does anyone else face this issue? I can share the project.

⟐ Commented December 02, 2024 at 1:42 MST

But the ic is on fire, can I find the replacement part, while I don't know the serial number of the ic

Thanks

I am experiencing issues with my ATmega4809 microcontroller. The device suddenly stopped powering on, and I can't seem to identify the cause. I've checked the power supply and connections, and everything appears to be in order.

Here are the details:

• Device: ATmega4809 Microcontroller
• Problem: Not powering on

I’ve reviewed the datasheet and features for the ATmega4809, which you can find here. However, I couldn’t pinpoint any specific issue related to my problem.

Has anyone else experienced similar issues with this microcontroller, or can anyone suggest potential troubleshooting steps? Any help would be greatly appreciated!

Thanks in advance!

⟐ Commented October 11, 2023 at 23:01 MST

i use the correct cable check connections but no communication

i note the communication light is blinking but no connection

could any help me with those ???