A/V connection problem

[serozhax]

Hi friends!
I have the Raspberry PI 3 B+.
I can't connect it whith TV via A/V output. There isn't a picture on TV.
I bought cable for MP3 player and little modified it like on schema on internet. Multimeter test is OK.
Maybe I should edit some setings on device?
Help me please.

[DougieLawson]

https://www.raspberrypi-spy.co.uk/2014/ ... ideo-jack/

What's your TV standard? The default if you add nothing to /boot/config.txt is that the AV video is NTSC 60Hz 480i.

[serozhax]

https://www.raspberrypi-spy.co.uk/2014/ ... ideo-jack/

What's your TV standard? The default if you add nothing to /boot/config.txt is that the AV video is NTSC 60Hz 480i.

I followed this instruction.
And how can I find standard of my TV? It's model LG 21FS2CG-TS

[DougieLawson]

What country are you in?

add

Code: Select all

sdtv_mode=2
sdtv_aspect=1

That sets it to PAL 50Hz 576i 4:3.

[fruitoftheloom]

https://www.raspberrypi-spy.co.uk/2014/ ... ideo-jack/

What's your TV standard? The default if you add nothing to /boot/config.txt is that the AV video is NTSC 60Hz 480i.

I followed this instruction.
And how can I find standard of my TV? It's model LG 21FS2CG-TS

SDTV Modes

https://www.raspberrypi.org/documentati ... t/video.md

[serozhax]

What country are you in?

add

Code: Select all

sdtv_mode=2
sdtv_aspect=1

That sets it to PAL 50Hz 576i 4:3.

I'm from Russia

[drgeoff]

Russia choose to follow France and use SECAM. However most TVs that can decode SECAM also decode PAL.

In any case, it is extremely rare that the wrong* setting of sdtv_mode in config.txt will of itself be the reason for nothing appearing on a TV screen.

(* Even 525/625)

[fruitoftheloom]

Hi friends!
I have the Raspberry PI 3 B+.
I can't connect it whith TV via A/V output. There isn't a picture on TV.
I bought cable for MP3 player and little modified it like on schema on internet. Multimeter test is OK.
Maybe I should edit some setings on device?
Help me please.

Cable issue ???

https://www.raspberrypi-spy.co.uk/2014/ ... ideo-jack/

[pksato]

Hi,
Or need to force composite output disabling HDMI.

Code: Select all

hdmi_ignore_hotplug=1

From wikipedia Russia use Secam as ATV color system. But, LG TV also is compatible with PAL.

[drgeoff]

1. Is the RPi actually booting?

2. Ensure nothing is plugged in to the RPi's HDMI socket when powering up.

3. What OS is on the card? Has NOOBS been used?

[serozhax]

1. Is the RPi actually booting?

2. Ensure nothing is plugged in to the RPi's HDMI socket when powering up.

3. What OS is on the card? Has NOOBS been used?

1. I have updated system today.
2. Nothing is plugged in to the RPi's HDMI socket.
3. OS Raspbian. Installed without NOOBS.

Maybe there is cable issue... But I checked it for many times...
1 - Video
2 - Ground
3 - Right Audio
4 - Left Audio

[serozhax]

From wikipedia Russia use Secam as ATV color system. But, LG TV also is compatible with PAL.

How to set it up? SECAM instead PAL.

[drgeoff]

From wikipedia Russia use Secam as ATV color system. But, LG TV also is compatible with PAL.

How to set it up? SECAM instead PAL.

TVs can often automatically switch between PAL and SECAM.

But even if the PAL/SECAM setting is not correct you would get a black and white display.

You did not confirm that the RPi is booting.

[serozhax]

Code: Select all

hdmi_ignore_hotplug=1

IT WORKS!!!! Thank you!!!

P.S. If i want connect HDMI must I change this setting?

[pksato]

Code: Select all

hdmi_ignore_hotplug=1

IT WORKS!!!! Thank you!!!

P.S. If i want connect HDMI must I change this setting?

Yes, need to set to 0 or comment or remove the line.

[klricks]

Code: Select all

hdmi_ignore_hotplug=1

IT WORKS!!!! Thank you!!!

P.S. If i want connect HDMI must I change this setting?

When using the default settings of Raspbian (Not NOOBS), the RPi will automatically use HDMI if connected at boot. If no HDMI is connected then the RPi will automatically switch to composite (AV) on boot.
You only need to change the setting for PAL:

Code: Select all

sdtv_mode=2