Modifiche al passo #12
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| + | [title] Study the Schematics |
|---|---|
| + | [* black] If all else fails, study the circuit diagrams in the Service Manual. |
| + | [* black] Focusing on the power supply, I probed around and confirmed that AC voltage was getting to most places where it was needed. |
| + | [* black] Power was not passing through a power relay. The relay is activated by a switch. Wait a minute, if the relay needs power to turn on the power supply, then what powers the relay? |
| + | [* black] Once I asked that question, I figured out that there was a small power supply with a small transformer, that provided standby power. When the power button gets pressed, standby power activates the power relay, which sends power to the giant power transformer that runs the Sony receiver's powerful amplifier. |
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