Prototypology/Adapterology-1: Difference between revisions
(Created page with "== How to connect a analog monitor to an Raspberry Pi 4? == The Raspberry Pi 4 can also output an analog video signal that can be used with old CRT-Screens. Lets have a look...") |
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The Raspberry Pi 4 can also output an analog video signal that can be used with old CRT-Screens. Lets have a look into the official schematics [https://datasheets.raspberrypi.com/rpi4/raspberry-pi-4-reduced-schematics.pdf] of the Raspberry Pi 4. | The Raspberry Pi 4 can also output an analog video signal that can be used with old CRT-Screens. Lets have a look into the official schematics [https://datasheets.raspberrypi.com/rpi4/raspberry-pi-4-reduced-schematics.pdf] of the Raspberry Pi 4. | ||
[[File:Av-jack-pi-4.png | frame | center | The A/V Jack ]] | [[File:Av-jack-pi-4.png | frame | center | 500px| The A/V Jack ]] | ||
The part J7 is an A/V jack socket with four connectors: | The part J7 is an A/V jack socket with four connectors: | ||
# VDAC_COMP (the video digital to analog convertor == video signal) | # VDAC_COMP (the video digital to analog convertor == video signal) | ||
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And this is how it looks on the Raspberry Pi 4: | And this is how it looks on the Raspberry Pi 4: | ||
[[File:Rp4avjack.jpg | frame | center | The A/V Jack ]] | [[File:Rp4avjack.jpg | frame | center | 500px | The A/V Jack ]] | ||
This socket is for a TRRS jack connector. | This socket is for a TRRS jack connector. | ||
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# S (SLEEVE) is connected to VDAC_COMP | # S (SLEEVE) is connected to VDAC_COMP | ||
[[File:Jack-trrs.jpg | frame | center | The A/V Jack ]] | [[File:Jack-trrs.jpg | frame | center | 500px | The A/V Jack ]] | ||
Revision as of 22:04, 8 June 2022
How to connect a analog monitor to an Raspberry Pi 4?
The Raspberry Pi 4 can also output an analog video signal that can be used with old CRT-Screens. Lets have a look into the official schematics [1] of the Raspberry Pi 4.
The A/V Jack
The part J7 is an A/V jack socket with four connectors:
- VDAC_COMP (the video digital to analog convertor == video signal)
- GND (the tree symbol means in the langauge of schematics Ground)
- AUDIO_R (the right audio channel)
- & 5. AUDIO_L (the left audio channel)
And this is how it looks on the Raspberry Pi 4:
The A/V Jack
This socket is for a TRRS jack connector.
- T (TIP) is connected to AUDIO_L
- R (RING 1) is connected to AUDIO_R
- R (RING 2) is connected to GND
- S (SLEEVE) is connected to VDAC_COMP
The A/V Jack