Automotive Head units  > Kenwood pinouts
cable changer kenwood dpx mp3110, Blaupunkt CD Changers and some others ?


Description (may be empty)
1 CH-REQH  Request output to changer; Low : Request
2 GND  
3 Vcc  +12V
4 CH-CON  Changer control out; High : Operation mode Low : Standby
5 CH-MUTE  Mute request from changer; High : Mute
6 AGND  Audio Ground
7 CH-RST  Reset output to changer
8 R  Audio right channel
9 CH-REQC  Request input from changer; Active Low
10 CH-DATAC  Data input from changer
11 CH-DATAH  Data output to changer
12 L  Audio left channel
13 CH_CLK  Clock input/output for changer

Pins 5,8,9,10,12 - for input, pins 1,4,7,11 - for output, pin 13 - input/output.

When the transfer is started by the radio by setting its REQ line (CH-REQH) low it waits for the changer to do the same on its REQ line (CH-REQC) and then sends the 4 byte address header, the data size in bytes and then the data.

The changer can start the communication by lowering its REQ line. The radio will send 4 address bytes and 1 data size byte (which is 40 clock cycles). The radio will set its REQ line low if it accepts the transfer.

A clock rate is 125 KHz. The data is transfered in bytes (8 bits with MSB first) and is valid at the rising clock edge.

13 pin kenwood e30-0825-05 proprietary of CD changer 13 pole connector connector layout
13 pin kenwood e30-0825-05 proprietary connector
at the Head unit
According to 7 reports in our database (3 positive and 0 negative) this pinout should be correct.

Is this pinout
CD changer 13 pole connector visual pinout:
CD changer 13 pole connector diagram
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