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Harman Kardon Harman/Kardon HK 3770 stereo receiver with networking Questions & Answers
How do i reset the hk3770
Place the receiver on Standby mode so that the Power Indicator turns amber. Press and hold the front-panel Tun mode Button for at least 5 seconds until the receiver goes on and a reset message appears in the display.
Harman Kardon AVR 630 8CH mode not available
According to the Harman-Kardon AVR 630 User Manual, if the 8CH mode is not available, you can try unplugging the unit from the AC wall outlet and waiting for at least three minutes. After the pause, reconnect the AC power cord and check the unit's operation. If the system still malfunctions, a system reset may clear the problem. The 8CH may not be available according to the user manual. You need to contact Harman-Kardon customer support.
Harman kardon avr 146 no front led display. but clicks on from orange light to blue. is there a fuse for display screen ? fuse at AC in is OK.
Hello, there is no fuse for the screen, there is a power supply circuit that makes it work and that if it is wrong the screen does not work
The rest of the team works well? Can you hear something?
if not, you do not have a display problem, you have a bigger problem
If you have knowledge to review it, I will attach the service manual, but go to a specialized technical service
Hola, no hay fusible para la pantalla, hay un circuito de fuente de alimentaci?n que lo hace funcionar y que si esta mal la pantalla no funciona
El resto del equipo funciona bien?, puedes escuchar algo?
si no, no tienes un problema de display, tienes un problema mayor
si tienes conocimientos como para revisarlo, te adjunto el service manual, sino dir?gete a un servicio t?cnico especializado
https://www.vintageshifi.com/repertoire-pdf/pdf/telecharge.php?pdf=Harman-Kardon-AVR-146-Service-Manual.pdf
Harman Kardon mas 100 no sound, faulty power supply of the amplifier and no voltage +/- 35v
turn the sub upsidedown, carefully remove the clear rubber feet (these are a dome fitted over a mushroom top), using the toothed gripper cutout of a pair of pliers (when closed it is the eye shaped opening visible on one side), grip the mushroom firmly but not so hard as to crush the mushroom and gently ease clockwise and anticlockwise (the mushroom is at one end of a clear plug blocking access to the four screws that hold the two parts together.
Be carefull to use the correct size screwdriver so as not to damage the screw heads as they are tight.
On reassembly, you may need to use glue to replace the rubber feet if the mushroom becames damages during removal.
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