I HAVE NO FRONT PANEL DISPLAY ON MY JVC RX509V RECEIVER.
IT TOGGLES IN AND OUT OF STANDBY MODE O.K... THE REMOTE WORKS O.K. BUT NO DISPLAY. I CAN FIX IT MYSELF BUT I DON'T HAVE THE SCHEMATICS.
THANKS FOR YOUR HELP!
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Re: NO FRONT PANEL DISPLAY
If the display processor has failed, you are out of luck, but sometimes
it is just the backlighting (bulb or LED) for the LCD display or if if
nothing in that circuit has voltage, then you can usually track down
the power regulator for it and fit that.
Hope Ya Fix It!
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Looking at the user guide it appears that the amp has a standby mode.
See not below on turning standby on. Question can you see the standby light flashing.
I would also suggest using function on the amp to remove any possible issues with the remote.
One would expect the system to return to normal operation by pressing the power button again. If not what do you see on the display.
Press 1 to turn on the receiver.You can also turn on the receiver using 1 on the remote control. When you turn off the receiver, press 1 again. "STANDBY" flashes on the display panel. Do not disconnect the AC power cord (mains lead) while "STANDBY" is flashing. This may cause a malfunction.
Hi Dudley, I would suggest that you try the following reset:
To do the reset you need to turn the receiver on then on the front panel of the receiver press and hold the "VIDEO1/VCR" button while doing that press the "STANDBY/ON" button.You will see the word "Clear" in the display screen and the receiver will go into standby mode. PLEASE UNDERSTAND THAT YOU WILL LOSE ALL YOUR AUDIO & VIDEO ASSIGNMENTS ON THE RECEIVER PLUS YOU WILL LOSE ALL YOUR SPEAKER CONFIGURATIONS, SPEAKER DISTANCE AND ALL LEVEL CALIBRATION SETTINGS.YOU WILL ALSO LOSE ANY PROGRAMMED RADIO STATIONS IN MEMORY.Once the receiver goes into standby mode turn it back on and go thru the setup menu for all custom settings.
If Zones are turned on or, if a mobile device connected to the Front Input is charging (MHL), the HYBRID STANDBY indicator won't light. See the TX NR515 owner's manual at http://filedepot.onkyousa.com/Files/own_manuals/TX-NR515_English.pdf for more info.
Did you check the remote with another Onkyo system at the dealer ??. If its OK try resetting the system. Remember you will loose all your stored presets ( FM and customized settings ) and the Amp will go back to factory settings. While in standby mode hold down the DVD button and press the Standby/On button., the display will show Clear and the Receiver will go into standby mode. Turn it on and try the remote once again.
Place the receiver in Standby mode (press the front-panel Standby/On Switch so that the Power Indicator turns orange).
Then press and hold the front-panel OK Button on the Receiver ( not remote ) for at least five seconds
until the RESET message appears in the display. Then press OK. The system will go to factory default. All your settings will be lost like FM stations / Sound settings etc: .
1 Press STANDBY/ON on the front panel to set this unit to the standby mode.
2 Press and hold TONE CONTROL and then press STANDBY/ON to turn on this unit.
The advanced setup menu appears in the front panel display.
3 Press PROGRAM l / h to select “PRESET”.
4 Press STRAIGHT repeatedly to select “RESET”.
Select “CANCEL” to cancel the initialization procedure without making any changes.
5 Press STANDBY/ON to confirm your selection and set this unit to the standby mode.
• This procedure completely resets all the parameters of this unit including the set menu parameters.
• The initial factory settings are activated next time you turn on this unit.
To cancel the initialization procedure at any time without making any changes, press STRAIGHT repeatedly to select “CANCEL” and then press STANDBY/ON.
If you have bare wire going into the receiver's output terminals, make sure a strand or two of wire is not touching the other terminal. That can short out the outputs, especially when you turn up the volume, which increases the voltage present at those terminals. That would cause the receiver to shut down as a saftey precaution.
The 10 Ohms resistor R9304 in series with the the 44V display power supply was open.
How to find it: Remove the to cover. On
the right hand side of the front panel you will see on the side a wide
white flat cable going toward the back of the receiver. Beside it is
a 4 black wire band connecting the front panel to a 3x4cm power PCB
which is parallel with the front panel inside the receiver (attached to
the front frame). It has visible on the left side a diode bridge and
a fuse - above the fuse you can find the R9304, a SFR16 package
(1x3.5mm) marked BrownBlackBlack. Check continuity.Replace if open wit a 1W resistor Good job ONKYO, save 1/3 of a penny...
For the DIY: As
an added step I replaced the R9304 with a 2W 47R resistor, replaced the
series transistor regulator Q9301 (tall TO92) with a bigger package
(isolated TO220) and one of the two series 22V zenners from the base -
D9310 - with a 10V one. Output voltage drops from 44V to 34V, display is slightly dimmer but overall stress is down.
1. Turn Radio On 2. Change Source input to Stand-By ( Puts radio in display only Stand By mode.) 3. Press Menu Button ( Gives you standby menu) 4. Toggle display with control knob until DEMO ON appears 5. Hold control knob in until DEM0 OFF appears 6. Press Menu Button 7. Change source back to music. All done. same as other Fixes - Just step by step!
The standby light is on, indicating CPU is now working.
but receiver doesn't power up -- either by switch on front or by remote. There is no display & no operational mode is functioning. This means the power on relay RL901 isn't ON, perhaps. Follow these steps: (1)download TX DS555 service manual (2)Unplug the amp (3)open the amp cover(4)check the AC inlet board, PS6303 (5)see P.31 B(vert.)D(horizon.)(6)Check R922, R923 ,Q921 ,C922, RL901 and a T-fuse,thermal fuse, located at the primary side of the large transformer, ETC-6304.