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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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denon dra-935r receiver b0rked
Hi,
I have a Denon DRA-935R receiver and unfortunately it has stopped working recently[1]: when I plug it in and switch on the main power, it immediately goes into standby and doesn't respond to the remote control. (There's a led on the volume dial which does burn) What I've done is a visual inspection of the interior of it, and all apparently is ok - that is, I couldn't find any no exploded caps etc. or blown fuses. Probing a bit with my multimeter showed the power supply to be -at least- partially ok, that is, it supplies around 40V~ to the main amp board - and since the LED on the volume dial also burns ok, I assume the low-voltage part of the power-supply is working. Finally, there's a relay which helps in providing power to my cd-player; this clicks on and off rapidly when the receiver is powered on. (And, subsequently, this power output is not provinding power -- which is consistent with the device being in the standby state). Can anyone help me investigate (and/or fix) the cause of this problem? (if it helps, I've got a picture of the internals of this amp online at http://jsp.vs19.net/tmp/IMGP3264.jpg ) Cheers, -- Jasper Spaans http://jsp.vs19.net/ 23:57:26 up 10268 days, 14:44, 0 users, load average: 6.19 5.75 5.91 iPod schuifelgang: Willekeurig is de Nieuwe Orde [1] It was powered on, playing some music at a rather low volume, when it suddenly went into standby mode and it hasn't come back since. |
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