Monday, May 5, 2014

KENWOOD KX 630 Stereo Cassette Deck ( No sound output from Left channel)


I originally thought the unit probably needed a simple head cleaning, but I quickly found out, this was a more serious problem. Tracing the input signal, led me to the processor chips. one of them accepted an input signal and produced an output. The left one did not... BINGO!


 I found a bad LM1011 DOLBY NOISE REDUCTION PROCESSOR chips (seen in picture below)  This unit comes with two of them, a left & right. I replaced the left processor chip and the problem was solved! 


The LM1011 DOLBY NOISE REDUCTION PROCESSOR chip, is the same as the NTE 2003.

3 comments:

Unknown said...
This comment has been removed by the author.
Unknown said...

I have Kenwood GE 7030. There is no sound even if it is turned off. I know that it would play if it is off, but it does not. Do you have an idea what to check? Thank you.

Unknown said...

Same here on a Sanyo RD 5035,same channel and all.