Sega CD (Model 2) Troubleshooting Guide: Difference between revisions
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=== Power LED & Startup Symptoms === | === Power LED & Startup Symptoms === | ||
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! Symptom !! Likely Cause !! Action | ! Symptom !! Likely Cause !! Action | ||
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The Sega CD Model 2 displays a boot logo and plays a startup chime if healthy. Failure modes help pinpoint faults: | The Sega CD Model 2 displays a boot logo and plays a startup chime if healthy. Failure modes help pinpoint faults: | ||
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! Symptom !! Probable Fault !! Suggested Steps | ! Symptom !! Probable Fault !! Suggested Steps | ||
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=== Common CD Drive Faults === | === Common CD Drive Faults === | ||
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! Symptom !! Likely Cause !! Action | ! Symptom !! Likely Cause !! Action | ||
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The Sega CD Model 2 uses both system RAM and a BIOS ROM. Faults can prevent boot or cause freezes. | The Sega CD Model 2 uses both system RAM and a BIOS ROM. Faults can prevent boot or cause freezes. | ||
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! Symptom !! Suspected IC !! Diagnostic Steps | ! Symptom !! Suspected IC !! Diagnostic Steps | ||
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=== Key Test Points === | === Key Test Points === | ||
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! Test Point !! Expected Voltage !! Notes | ! Test Point !! Expected Voltage !! Notes | ||
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Audio problems may originate from the Sega CD or pass-through to the Mega Drive. | Audio problems may originate from the Sega CD or pass-through to the Mega Drive. | ||
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! Symptom !! Likely Source !! Action | ! Symptom !! Likely Source !! Action | ||
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