Question about Audio & Video Receivers
The output transistors are blown in one or more channels also the driver transistors are blown in the same channel.
you can find this problem real easy using a DVOM (digital volt ohm meter) on the continuity test(BEEP).
start be removing the amp section from the receiver and laying it on the table bench whatever no going from B-C and C-E if any beeb there junk and the driver transistors are also and there are a few resistors that are junk.
2@2sd2390 sanken get from newark and only newark/farnell
2@2sb1560 sanken get from newark and only newark/farnell
2@2sd947 from newark
4@ 2sc1841 or 2sc1845 to replace 2sc1845
4@ 2sa998 or 2sa992 to replace 2sa992
8@ .22 ohm 1/4 watt metal film resistor 1%
2@ 4.7 ohm 1/4 watt metal film resistor 1%
this is a parts list for 2 channels
only get the powertransistors (the sanken) from newark any others i have found as counterfeit and destroy stuff and dont work
i dont remember location #'s on the board but
Posted on Mar 17, 2010
Tips for a great answer:
Jun 21, 2015 | Insignia Audio & Video Receivers
Mar 30, 2014 | Onkyo TX-SR501 Receiver
Jan 04, 2011 | Insignia NS-R2000
Aug 03, 2010 | Audio & Video Receivers
Apr 17, 2010 | Marantz SR4002
Sep 12, 2009 | Denon AVR-1706 Receiver
Oct 20, 2008 | Insignia Audio & Video Receivers
Jan 09, 2008 | Yamaha RX-V2400 Receiver
1,042 people viewed this question
Usually answered in minutes!