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Sziasztok! A fenti készüléknek halvány a kijelzése. Elég érdekesen van megoldva a kijelző tápfesze, sokban függ a bejövő 12VAC feszültségtől. Kérdésem az lenne, hogy a fűtést próbáljam emelni, vagy a -24V-ot? A D8-on a 30V is kevesebb, de az AC 4.5V is. Melyik befolyásolja jobban a fényerőt? A fűtés, vagy a negatív tápfesz? Üdv: Jácint

For your information to repair Harman KArdon HD710 Player uses a KSS210B Pickup (as spare, original unknown) can be changed without any other servicing Harman Kardon Receivers; Series AVR 2000,3000... "Looses memory issue"- gold cap at the front pcb defective. May be changed to a 1µ cap but you have to solder 3 other elko´s to the other side. Keeps memory for a longer time. "Hum noise for the first 5min, warm up" - right lower side at the main pcb: elko 7800µ dead- you can see it at the "cap of it". Replace both (7800µ and 2200µ) to new versions above 25V. "Fuse burnt voltage selection; no green led´s flash, no sound"- cap 2200µ make a short circuit (next to 7800µ). Change these elkos! If you want to make it better... change the 7x 10µ caps for the regulators too. Resolder all points there. "volume changes self to max. or min." change the two resistors at the front pcb close to the volume encounter. be sure that there are both sides 5V! "everything is functional but no sound; but sound from the 6.1ch in" TC9273N-07 is dead (shorted). Have a look at the two caps and the security resistors beneath this chip! My be dead too. Replace this chip only by the -007 version. others will not function. Be careful with the bigger stripe cable! the contact lines are loosen from the plastics. You can help yourself with a "second glue" under these contacts. So i hope i can help you... cheers SG.

Hi all !

I plug the plug into the socket. The blue standby LED lights up. I press the standby button. But the amplifier does not turn on, the LCD display does not light up. When you press the standby button again from the 15th to the 20th time, sometimes it is possible to turn on the amplifier. Previously, a similar thing happened after a long period of inactivity of the amplifier unplugged from the outlet. But after turning it on to the outlet and warming up in standby mode, everything seemed to return to normal, and the amplifier was turned on with the standby button the first time.
And now, after standing for 3-4 weeks (unplugged from the outlet), only from the 15th or 20th time.

Thanks.
 

Keresek Panasonic sa ak 48 M38199MF227