CVBS OUT on an Android Head Unit

What is CVBS_OUT_1 on an android head unit used for?

Will the android headunit still work if I don’t connect CVBS_OUT ?

What connects to the CVBS OUT?

Yellow panel socket

You can find CVBS OUT 1 and sometimes a CVBS OUT 2 on the rear panel of an android headunit. The CVBS OUT connectors are universally coloured yellow in the centre of the RCA socket when mounted on a rear panel.

Bunch of connectors

Your android wiring loom may have a bunch of RCA connectors and one is labelled CVBS_OUT. While several will be coloured yellow, there will be only one CVBS_OUT_1 and possibly a CVBS_OUT_2.

CVBS OUT 1 and CVBS OUT 2 cables for android headunit

Mentioned in the manual

The manual may mention connecting CVBS_OUT but does’t identify clearly enough due to a monochrome print or poor quality text. The CVBS_OUT will be a yellow RCA connector. Look for tags on the wiring loom for small labels marked V_OUT or VIDEO_OUT.

Not common

CVBS_OUT is not a very common rear connection on an android headunit.
Your headunit may not be equipped with video out on the yellow connector.

What does CVBS_OUT_1 mean?

CVBS stands for Composite Video Baseband Signal. It is used for sending analogue video signals over a relatively cheap coaxial cable.

CVBS_OUT is CVBS Output. This way the android headunit can send analogue video signals to an external device, usually a display monitor or screen.

CVBS_OUT_1 the number 1 identifies the CVBS OUT when there are more than one, typically the maximum number of CVBS_OUT on an android headunit is Two. (CVBS_OUT_1 and CVBS_OUT_2).

Connecting devices to CVBS_OUT

You can connect any analogue display that has a CVBS_IN connector. This can be anything from a CCTV monitor to a large LCD TV. Your display device will need to be CVBS (composite input) compatible for CVBS OUT to work. You can identify a TV or Monitor that is compatible by looking on the rear or side of the screen for a ‘Composite’ or ‘Component’ input, a yellow RCA marked ‘in’ or a SCART socket. Special SCART plugs can adapt to provide composite input.

To link the android headunit RCA/Phono yellow female CVBS_OUT to the displays RCA/Phono yellow female CVBS_IN, use an RCA jack lead, that has a yellow male phono at each end.

Typical lead use to connect the CVBS_OUT to a display or screen

Problems with CVBS_OUT

There are times when CVBS_OUT on your android head unit is confused when it should output a video signal. It is a common misconception that all android headunits with a CVBS_OUT connector will always output the screen image.

Some android headunits, particularly those with mechanical drives will only output a video signal when the drive is in use. But this is not a rule as many mechless android headunits won’t output all the video all the time bit a similar looking android headunit will function as expected.

The advice for the buyer is to ensure that the video output on the CVBS_OUT connector will function as you need it to, before purchasing the android headunit. There is no secret setting to fix the CVBS_OUT problem if it affects your model.

Android guy who loves his android head units as much as he loves his cherry pie.

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