I need help with my new vintage tape deck!

[Kuja]

Hello everybody,

I recently won on eBay this rare deck:
http://www.thevintageknob.org/KENWOOD/KX2060/KX2060.html

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!

Aleksandar

PS I also posted this in DIY forum.
I'm sorry for wasting space, but maybe there are some knowledgeable people that are not visiting both forums...

 

[Raphael]

Although your deck isn't the usual green PCB BPC--I suspect as with most BPC that your trouble lies in the solder connection of the left out-put. Typical cost-cutting approach in the Kabuki days was to mount the I/O's directly to the PCB resulting in eventual solder point separation/s due to the stress of plugging and un-plugging cables.

Hope this is it--and good luck!

 

[Robisme]

Have you tried wiggling all of the controls while it is playing? Could be dirty.
Try operating all switches, buttons and knobs. Good luck.

Rob

 

[Kuja]

Although your deck isn't the usual green PCB BPC--I suspect as with most BPC that your trouble lies in the solder connection of the left out-put. Typical cost-cutting approach in the Kabuki days was to mount the I/O's directly to the PCB resulting in eventual solder point separation/s due to the stress of plugging and un-plugging cables.

Hope this is it--and good luck!

I wish it was so simple!

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.

PCBs on this TOTL deck are of very high quality.

Apparently they were manufactured by ELNA (all of the PCBs have ELNA logo on them) - I only have heard of top quality capacitors manufactured by ELNA.

 

[grateful]

Do you have an Oscilloscope ? The best way to fix this problem is with a scope probe follow the signal through the path. Check or replace C5 appears to be a coupling cap. The rectangular things are transistors i think. Check for 3 leads to verify.

 

[alexkerhead]

Use DeOxit to clean all controls.
I have a Marantz cassette deck with a channel out and a control cleaning fixed her right on up.
If that doesn't work, you are going to need a oscilloscope(like grateful said) to check for bad solder joints of parts.