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Sabrina LuceroJul 31, 2025
How to fix a Pioneer Car Receiver that cannot be turned on?
- RRobin SchmidtJul 31, 2025
If your Pioneer Car Receiver cannot be turned on, there are several potential causes. First, the microcomputer may not have been reset. Check that the level of the terminal XRESET (Pin 8) is "H," and if it isn't, inspect the RESET circuit. Second, the AC pulse may not be input; verify that the AC pulse is input to Pin 4 of the AC input terminal, and if not, check the AC pulse generation circuit. Finally, the oscillation circuit of the microcomputer might not be functioning. If this is the case, the microcomputer or the oscillation circuit is likely broken and needs to be replaced.
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