Question about Marantz SR-19 Receiver
Hi i have an sr-19. usually when i power it up it will click once, wait a second or two then click again and the sound will start. now it clicks once and the second click never happens. no sound comes out. there is a display and i can switch between sources but no sound. does this sound like a faulty power supply? what do these things cost to fix? (usually)
SOURCE: Marantz SR 7200
It is likely that the PA stage has developed an offset voltage in the output stage. The faulty amplifier channel can be found by progressively disconnecting the collectors of the of the power transistors until the protection fault disappears. Once the faulty channel is found the the cause of the offset has to be traced to the faulty transistor or resistor. Don't forget that if you can smell smoke or burning then there are likely to be components(esp transistors) that have been damaged by the fault.
I had a Luxman unit that destroyed 5 transistors in the output stage that was due to an open .5W resistor in the driver stage.
Posted on Mar 29, 2009
SOURCE: Audio glitch on Marantz SR-19
It's probably not heat due to the Marantz' large frame and heat-synchs.
This could simply be a mismatch of impedance. The amp is 120w per channel, so make sure the speakers can handle this. Check the impedance (ohms) of the speakers and the amp as well. Clipping can be caused by overpowering the speakers, which could damage the speakers in the long-run.
If this is only from 1 source- (i.e.- Blu-ray player or cable) then it could be digital clipping.. This Marantz can decode 96kHz PCM or normal Dolby Digital & DTS. If this is a Blu-ray it may be streaming 192kHz PCM... (but most likely the Marantz will not even attempt to play that audio)
I hope this helps.
Posted on May 31, 2009
SOURCE: A few seconds after pressing
The clicking is probably from a relay that is protecting from an overload either misinterpreted or real. Overload circuits can also fail or you have a component that is intermittently shorting causing a momentary overload.
Posted on Mar 27, 2011
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