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Hello everybody,I recently won on eBay this rare deck:
http://www.thevintageknob.org/KENWOOD/KX2060/KX2060
It arrived yesterday.
It is in perfect mechanical and optical condition.
Unfortunately I don't have any output from the left channel RCA jack.
The funny thing is that both channels work perfectly through the headphones!
So it must be something simple an stupid (hopefully).
On the PCB there is a combined line/headphone amp section.
There is a cable going to headphone jack from it and through PCB it is connected to output RCAs.
You can see everything on the pictures.
RCAs are fine - I also tried output from the 5-pole DIN connector with the same results.
What do you think is causing this problem?
What are those black rectangular C2021R G thingies near the output RCAs?
Some more pics...
Thanks in advance!
Follow Ups:
They are transistors. A lot of Japanese manufacturers used these because the physical dimensions allowed for machine insertion, one could be defective. I agree with the other follow-up. Check all solder connections on the jacks, also check continuity of the cables from the solder side of the board. Good luck.
I wish it was so simple as bad RCA solder joints!As I already mentioned, I also tried the output from the European 5-pin DIN connector. The same thing happened - right channel was fine, left channel was silent.
You can see on the pics that the DIN connector is located betwenn RCA inputs and outpits.
Hello.I'm not sure of what this C2021R are. They should be capacitors, but its shape is quite strange. I've not seen them in old vintage decks. Anyway I'm not expert.
I had a problem like yours. Look, your RCA conectors are directly soldered onto the board, and they are very close to it. When plugging and unplugging the soldering point is forced. At the end this can broke the soldering. Have you checked it??
In this case is very useful a multimeter with continuity function, makes this check straightforward.
The right way to discover the problem is to begin with a backtrace with an oscilloscope. From the output to the amplifier circuit checking every single element and comparing it with the functioning channel.
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