To Next PageTo Next PageWhat to do if my Denon Receiver powers off with a blinking power LED?
If your Denon Receiver powers off and the power LED is blinking, check the power supply voltages for the analog block and the digital block.
How to fix a Denon Receiver when the FLD doesn't light?
When the FLD (Fluorescent Display) doesn't light on your Denon Receiver, you should: * Check the fuse for any leaks or short-circuiting. * Check the power supply voltages for the system uCOM. * Check the reset signal for the system uCOM. * Check the oscillation waveform. * Check the power 50/60 signal. * Check the power supply voltages for the FLD. * Check the reset signal for the FLD. * Check the FLD drive signal for the FLD.
General| Input Sensitivity/Impedance | 200 mV / 47 k ohms |
|---|---|
| Frequency Response | 10 Hz - 100 kHz |
| FM Tuner Range | 87.5 - 108.0 MHz |
| AM Tuner Range | 522 - 1611 kHz |
| Inputs | Phono x 1 |
| Outputs | Headphone x 1 |
| AM Sensitivity | 30μV |
| Standby Power Consumption | 0.3 W |
Check leakage current or line to chassis resistance before returning the unit.
Check all parts and connections after servicing to ensure safety.
Use designated parts for safety properties; marked on diagrams and parts lists.
Resets the system and sets unit to normal mode.
Troubleshooting steps for when the Front Light Display (FLD) does not light.
Troubleshooting for power-off state with blinking power LED.
Troubleshooting for issues with the DENON BUS system connector.
Troubleshooting steps for no sound or noise issues during playback.
Measuring points and waveforms for the Front PCB.
Measuring points and waveforms for the Update PCB.
Details the VCC capacitor pre-charging process during IC start-up.
Explains the PWM controller for normal and burst mode operation.
Details various protection features like overvoltage and overload.
Defines ratings that, if exceeded, may damage the IC.
Explains how the IC manages power during startup and operation.
Details the improved current mode operation for duty cycle control.
Explains protection functions like overload and overvoltage detection.
Details auto-restart mode for overload/open loop conditions.
Electrical characteristics related to the supply section.
Electrical characteristics of the internal voltage reference.
Electrical characteristics of the control section.
Electrical characteristics of the protection unit.
Electrical characteristics of current limiting.
Details the pin connections for the FL Display.
Printed wiring board layout for the Main PCB, part 1.
List of semiconductor components for the PWB.
Parts list for the Exploded View of the Front PCB.
Parts list for the Exploded View of the Main PCB.
Parts list for the Exploded View of the SMPS PCB.
Parts list for the Exploded View of the AMP PCB.
