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Adaptor In Out on Kenwood KA-36 amp rear panel

dear vintage hifi enthousiasts,

I found a Kenwood KA-36 amp. besides a phono and an AUX there 4 more RCA entries: Adaptor in and out. they are horizontally connected to each other.

i can't found the function of these hubs.

second question: the tape and CD must be connected by rectangular recepticals 10p and 5p.

can they still be bought of is it possible to change them by RCA connections?

thanks a lot in advance,

Tim



Adaptor In Out on Kenwood KA-36 amp rear panel

Hi Tim,

Back in the 80's there was a move to make less costly "systems" and to try and disguise the fact that these systems weren't much more than the all in one systems of the day. They placed the tuner and tape deck parts in separate boxes and to save costs, they connected the units together with proprietary cables using the power supply in the power amp to save costs. Those are the rectangular connectors that you see. They never made available adapters for these to RCA jacks because they wanted to sell you the matching tuner or tape deck or they were already included in the "system".

If you can find the matching connector you could probably make your own adapter. The Service Manual is available here on hifiengine with all of the necessary information. Finding the connector probably won't be easy. You might look on ebay to see if the matching tuner and tape deck are available there. If so, you could use as-is or use the cable to make your own adapter.

Since the manufacturer did provide RCA jacks for the CD player, you could also use an external switching box to provide multiple inputs as well.

As for the ADAPTOR connectors, these are commonly used for an external equalizer. The ADAPTOR out jacks output the selection from the amps input selector switch and the input goes to the volume and on to the amplifier. Some amps have a switch to switch the adaptor in and out of the signal path. The ones like yours that do not have the switch need to have a connection between the jacks, otherwise there will be no sound output out of the unit.

I hope that helps,

-bob

Re: Adaptor In Out on Kenwood KA-36 amp rear panel

thanks Bob,

that was really helpfull.

for the tape pins-connector:

if i could figure out which pins correspond with left/right IN and connect them with RCA plugs, it might be possible to create an extra useful entry on this cheap amplifier?

kind regards,

Tim

Re: Adaptor In Out on Kenwood KA-36 amp rear panel

Hi Tim,

Another possibility is to just add some RCA jacks to the back panel by drilling some holes for the jacks. Then wire the jacks down to the connections on the printed circuit board. You wouldn't need to remove the rectangular connectors, they could stay as is.

-bob