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#1
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Denon Panel Lock ON
I have a client with a Denon DRA-397 Stereo Receiver.
The display says "Panel Lock ON" and they are unable to use any of the front panel controls or the remote. How do I turn the Panel Lock off?? |
#2
Posted to rec.audio.tech
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Denon Panel Lock ON
The Streets wrote:
I have a client with a Denon DRA-397 Stereo Receiver. The display says "Panel Lock ON" and they are unable to use any of the front panel controls or the remote. How do I turn the Panel Lock off?? I don't find a "Panel Lock" function in the powner's manual. I would recommend a reset, the procedure for which is shown on page 19 of the English portion of the owner's manual. Anyway, with the unit OFF but plugged in, press and hold the speaker A and B buttons and while still holding them press the POWER button. Continue to hold the speaker buttons for another second or so. The display should all light up and flash at 1-second intervals. If not flashing, try again. If resetting won't help - or if reset is impossible, the microprocessor may be defective, though it's pretty unlikely in this case. Mark Z. |
#3
Posted to rec.audio.tech
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Denon Panel Lock ON
"Mark D. Zacharias" wrote in message
et... The Streets wrote: I have a client with a Denon DRA-397 Stereo Receiver. The display says "Panel Lock ON" and they are unable to use any of the front panel controls or the remote. How do I turn the Panel Lock off?? I don't find a "Panel Lock" function in the powner's manual. I would recommend a reset, the procedure for which is shown on page 19 of the English portion of the owner's manual. Anyway, with the unit OFF but plugged in, press and hold the speaker A and B buttons and while still holding them press the POWER button. Continue to hold the speaker buttons for another second or so. The display should all light up and flash at 1-second intervals. If not flashing, try again. If resetting won't help - or if reset is impossible, the microprocessor may be defective, though it's pretty unlikely in this case. Mark, Thanks -- I missed that reset function in the manual. I'll try it. |
#4
Posted to rec.audio.tech
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Denon Panel Lock ON
"Mark D. Zacharias" wrote in message
et... The Streets wrote: I have a client with a Denon DRA-397 Stereo Receiver. The display says "Panel Lock ON" and they are unable to use any of the front panel controls or the remote. How do I turn the Panel Lock off?? I don't find a "Panel Lock" function in the powner's manual. I would recommend a reset, the procedure for which is shown on page 19 of the English portion of the owner's manual. Anyway, with the unit OFF but plugged in, press and hold the speaker A and B buttons and while still holding them press the POWER button. Continue to hold the speaker buttons for another second or so. The display should all light up and flash at 1-second intervals. If not flashing, try again. If resetting won't help - or if reset is impossible, the microprocessor may be defective, though it's pretty unlikely in this case. Mark Z. Tried the microprocessor reset from the manual (spkr A & B held in while powering on) -- did not work; Panel Lock was still ON. Heard from Denon region support -- they said to try spkr B & Mode held in while powering in. I won't be able to test this until Saturday, but they seemed pretty confident that this would work. We'll see. Interestingly, their best guess as to how Panel Lock got set was someone pushing/holding in a variety of buttons on the front and by chance hitting a combination that locked the panel. |
#5
Posted to rec.audio.tech
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Denon Panel Lock ON
I have a client with a Denon DRA-397 Stereo Receiver.
The display says "Panel Lock ON" and they are unable to use any of the front panel controls or the remote. How do I turn the Panel Lock off?? I don't find a "Panel Lock" function in the powner's manual. I would recommend a reset, the procedure for which is shown on page 19 of the English portion of the owner's manual. Anyway, with the unit OFF but plugged in, press and hold the speaker A and B buttons and while still holding them press the POWER button. Continue to hold the speaker buttons for another second or so. The display should all light up and flash at 1-second intervals. If not flashing, try again. If resetting won't help - or if reset is impossible, the microprocessor may be defective, though it's pretty unlikely in this case. It's possible that this receiver incorporates a lithium battery to back-up its configuration memory when the receiver is powered off, and that this battery has run down (they typically have a 5 - 10 year lifetime). I've seen a number of devices on the market which tend to go wonky when the backup battery discharges. The configuration memory contents may become garbled, and the onboard microprocessor doesn't detect this condition properly and becomes very confused. If this is the case, a reset may indeed help the problem, at least temporarily. If the problem recurs, it may be necessary to service the receiver - replacing the lithium battery (which may be a button cell in a holder, or may be soldered to the PC board). -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#6
Posted to rec.audio.tech
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Denon Panel Lock ON - Fixed
"The Streets" wrote in message
news "Mark D. Zacharias" wrote in message et... The Streets wrote: I have a client with a Denon DRA-397 Stereo Receiver. The display says "Panel Lock ON" and they are unable to use any of the front panel controls or the remote. How do I turn the Panel Lock off?? I don't find a "Panel Lock" function in the powner's manual. I would recommend a reset, the procedure for which is shown on page 19 of the English portion of the owner's manual. Anyway, with the unit OFF but plugged in, press and hold the speaker A and B buttons and while still holding them press the POWER button. Continue to hold the speaker buttons for another second or so. The display should all light up and flash at 1-second intervals. If not flashing, try again. If resetting won't help - or if reset is impossible, the microprocessor may be defective, though it's pretty unlikely in this case. Mark Z. Tried the microprocessor reset from the manual (spkr A & B held in while powering on) -- did not work; Panel Lock was still ON. Heard from Denon region support -- they said to try spkr B & Mode held in while powering in. I won't be able to test this until Saturday, but they seemed pretty confident that this would work. We'll see. Interestingly, their best guess as to how Panel Lock got set was someone pushing/holding in a variety of buttons on the front and by chance hitting a combination that locked the panel. Powering on while holding in Spkr B and the Mode buttons cleared the Panel Lock. |
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