MARANTZ SR6015 Receiver Protect Mode Shut Off
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
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86%
CONF
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Power Output Transistors
Internal DC protection is most commonly caused by a shorted Darlington pair or discrete power transistor in the final amplification stage. When these semiconductors fail, they create a low-resistance path from the power supply rail to the output, necessitating replacement of the matched NPN/PNP pairs for the affected channel. Replacing these restores the integrity of the output circuit and clears the DC offset error.
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#CommissionsEarned
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6%
CONF
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Non-Inductive Emitter Resistor
When an output transistor shorts, it typically draws excessive current through the emitter resistor, causing it to fail open as a secondary sacrificial protection. A forensic inspection usually reveals a cracked or scorched ceramic casing on this resistor. Replacing this component is required to complete the circuit path for the biased current once the transistors are replaced.
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#CommissionsEarned
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8%
CONF
|
Speaker Banana Plugs (10-Pair)
The primary external cause for protection mode is 'stray strands' of speaker wire touching the receiver chassis or adjacent terminals. High-quality insulated banana plugs eliminate the possibility of physical contact between polarities or the metal enclosure. This addresses the root cause of short-circuit protection triggers by ensuring a discrete, mechanical connection for each channel.
SKU: B01MXY386B
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DIY Repair Guide
Watch exactly how to replace the Power Output Transistors.
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.