Pioneer VSX-47TX Receiver Overheating

TheRealBill
TheRealBill Posts: 3
edited September 2004 in Troubleshooting
Our first Pioneer VSX-47TX was replaced after a year and 9 months because it was running too hot. It was determined by the repair shop that it had a bad DSP board assembly. Pioneer replaced it with a used VSX-47TX receiver. I placed a thermometer on. It has plenty of ventilation on top and back of receiver. Is this temperature normal, or am I heading for a receiver that will eventually burn up? All our speakers with the exception of the sub-woofer are going through an amplifier.
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  • Frank Z
    Frank Z Posts: 5,860
    edited September 2004
    Pioneer recommends 8" minimum clearance above the receiver. Do you have at least that much? What type/style of rack are you using? Where is the receiver in relation to the rest of your eqpuipment?
    9/11 - WE WILL NEVER FORGET!! (<---<<click)
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  • VR3
    VR3 Posts: 28,647
    edited September 2004
    I had a Pioneer Elite VSX-41 for a short time, it ran incredibly hot. Hotter than all 5 of my Adcoms combined...

    However, at like -40 or whatever the internal fan kicked in...

    But even with no amps in use, the thing ran HOT...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • TheRealBill
    TheRealBill Posts: 3
    edited September 2004
    Thank you for your response. There is 12 inches of space above the receiver and the back is wide open..plenty of ventilation!
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  • Frank Z
    Frank Z Posts: 5,860
    edited September 2004
    Top and back are fine, good. But how about the sides and front? Is it in a cabinet with glass doors? Is it at the top of the rack subject to heat rising from the other components in the rack?

    Help us help you.
    9/11 - WE WILL NEVER FORGET!! (<---<<click)
    2005-06 Club Polk Football Pool Champion!! :D
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  • TheRealBill
    TheRealBill Posts: 3
    edited September 2004
    Yes, there are glass doors on the cabinet. We've run it with the doors open and shut, that doesn't seem to matter. There are three inches on each side. The reason I'm concerned is that the other receiver ran hot and would cause clipping and shut down. That was before I got the amp to put in with my system. I don't believe this is normal, but that's why I'm putting this out to you specialist. Since I only have a 90-day warranty on this used piece of equipment I really need to find out. My Outlaw amp runs luke warm.
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  • Frank Z
    Frank Z Posts: 5,860
    edited September 2004
    Okay, let's have you try this. Re-locate the receiver (temporaily) and place it on top of your rack. Use it as you normally would for a day or two and see if it makes any difference. If you sense no decreas in the amount of heat, or if it shuts down, then return it for another, or for a refund.

    My old -37tx ran very warm as well, but it got darn hot when I used it for my Lsi's. Although it never shut down, you could feel the difference.

    Earlier you mentioned placing a thermometer on the receiver. What kind of readings did you get? You might want to put the thermometer back on the receiver after you remove it from the rack/cabinet.
    9/11 - WE WILL NEVER FORGET!! (<---<<click)
    2005-06 Club Polk Football Pool Champion!! :D
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  • F1nut
    F1nut Posts: 50,561
    edited September 2004
    What speakers are you driving? What is their efficiency rating and what is their impedence rating?
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • Frank Z
    Frank Z Posts: 5,860
    edited September 2004
    F1,
    He's driving the speakers with a seperate amp via the pre-outs.
    9/11 - WE WILL NEVER FORGET!! (<---<<click)
    2005-06 Club Polk Football Pool Champion!! :D
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  • F1nut
    F1nut Posts: 50,561
    edited September 2004
    Ah, thanks Frank I missed that. Well, in that case I'd say it's a POS.......get rid of it.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • Tour2ma
    Tour2ma Posts: 10,177
    edited September 2004
    Wasn't exactly clear... but yup, if the VSX-47TX's amps aren't even being used, it has real issues...
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • Frank Z
    Frank Z Posts: 5,860
    edited September 2004
    Originally posted by TheRealBill
    All our speakers with the exception of the sub-woofer are going through an amplifier.
    Didn't you guy's get the message? Do NOT try the Brown Acid!!;)
    9/11 - WE WILL NEVER FORGET!! (<---<<click)
    2005-06 Club Polk Football Pool Champion!! :D
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  • VR3
    VR3 Posts: 28,647
    edited September 2004
    Russ explained this to me a while back...

    When you turn on the receiver, it turns on the amps to full power all the time, constant...

    Even when I never used any of the PE amps it ran at the same temperature as when I did....

    It is the design I am afraid
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • O'Shag
    O'Shag Posts: 76
    edited September 2004
    My Yamaha Z9 tends to run quite hot also. This is a result of the design. I've being giving consideration to installing a super quiet fan in the cabinet to force air into the space in which the receiver is located. I hear the Panasonic fans are very good because they run so quietly . This serves to force hot air away from the receiver and support the internal cooling fan.
    Polk SRT HT System
    Polk CS1000p / FX1000
    Sony KDS-R70XBR2
    Yamaha RX-Z9 Processor
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited September 2004
    Originally posted by Vr3MxStyler2k3
    When you turn on the receiver, it turns on the amps to full power all the time, constant...

    Even when I never used any of the PE amps it ran at the same temperature as when I did....
    Pioneer amp designs are Class A???
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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