Kenwood 1090vr; I'll press power and the phono selection will blink 4 times and then the amp shuts down. I've removed all wiring to check and see if another compenent was the cause, but no luck. Any Suggestions? Thanks!
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If you've already disconnected the speakers then I suspect the fault is internal on the amplifier and the unit is shutting down to protect iteself.
The fault with most amplfiers can normally be traced to blown or leading capacitors (bulge on the top or liquid around base) which can be replaced for little cost if you've got the technical ability and equipment to desolder and resolder components on a PCB.
First thing to do would be to remove the cover and check the capacitors as detailed above.
Let's distill this down to its simplest configuration... does the onboard FM produce sound? If not, nothing will.
NEVER USE MAXIMUM VOLUME FOR TROUBLESHOOTING.
Turn the volume control to something medium.
The errant switch, control or condition may change and you will suddenly release the amp's full power and possibly destroying your speakers. If a signal isn't audible at 1/2 volume it's probably not there.
Carefully examine the front panel for clues like a misplaced Mute or Tape Monitor control or Multichannel Analog Input selected.
There is a good chance that a common control may have developed a high-resistance or 'dead' spot through idleness and is causing your symptom. Turn the POWER OFF and operate every control throughout its range a number of times, especially rarely-used ones like Tape Monitors and the Mute control.
Turn the volume to something reasonable and see if that helped.
There are poor solder connections somewhere on the board. Usually these are at the voltage regulators where there can be some heat. Look for 3-legged transistors attached to small metal heatsinks, If you can solder, resolder the pins on those parts. Also look for any connections that appear to be grasiny or have rings and resolder them too.
First, do you have an amp that has a built in phono preamp. You can determine this from the front panel, there being a Phono input to select. If not,then you will need to get a preamp or you will not get any decent sound from the deck. You can get phono preamps online from here
If you need any more help, or info on how to set it up, just give me a hoy.
First thing to do is to check if this KENWOOD have an input at the back then you try another player i mean dvd player or anything that you can drive or cassette then hear if the same happened again there is something overheating and i pinpiont directly the Power IC is leaking.subject to change.See the number of the IC then buy the same number and change.