Powering gearbest screen

General GBZ-related chat goes here. Share ideas, tips and tricks, or ask questions that don't fit into the hardware/software help forums.
callumsmith1989
Posts: 36
Joined: Tue May 17, 2016 7:45 am

Powering gearbest screen

Post by callumsmith1989 » Tue Aug 02, 2016 8:33 am

Hi

I received my gearbest screen today and am wondering what the easiest way to test it is? I am hoping to test it first unmodded and then modded.

Thanks,
Cal

User avatar
Camble
Posts: 885
Joined: Thu May 05, 2016 2:31 am
Location: Scotland
Has thanked: 269 times
Been thanked: 488 times

Re: Powering gearbest screen

Post by Camble » Tue Aug 02, 2016 9:07 am

It's unlikely to run off 5v without adding a bridging wire from the +Vcc line to the third pin on the leftmost chip.

callumsmith1989
Posts: 36
Joined: Tue May 17, 2016 7:45 am

Re: Powering gearbest screen

Post by callumsmith1989 » Tue Aug 02, 2016 6:42 pm

Hi

Thanks for the reply. I am aware of the mod to make it work on 5v but was wondering how to test it straight away (not on 5v) and then after with 5v. It comes with a rca cable that plugs into the board and has a white female, yellow female and red male plug?

I was thinking of plugging my Wiis scart cable into it but it's rca cable is all male.

SidSilver
Posts: 263
Joined: Sun May 22, 2016 6:22 am
Location: France
Has thanked: 137 times
Been thanked: 37 times

Re: Powering gearbest screen

Post by SidSilver » Wed Aug 03, 2016 12:14 am

To make 5V test, just cut the red RCA jack and solder and USB cable so you can plug it in a USB power supply.
then you can power with 5V and test with the yellow RCA on a camcorder or anything that can out on composite

callumsmith1989
Posts: 36
Joined: Tue May 17, 2016 7:45 am

Re: Powering gearbest screen

Post by callumsmith1989 » Wed Aug 03, 2016 3:22 am

Thanks for the reply. I was hoping to test that it's working before modding (and cutting red rca plug).

Any idea how I can easily do this? As I said, the cable provided has a female yellow plug, female white plug and male red plug.

SidSilver
Posts: 263
Joined: Sun May 22, 2016 6:22 am
Location: France
Has thanked: 137 times
Been thanked: 37 times

Re: Powering gearbest screen

Post by SidSilver » Wed Aug 03, 2016 3:59 am

callumsmith1989 wrote:Thanks for the reply. I was hoping to test that it's working before modding (and cutting red rca plug).

Any idea how I can easily do this? As I said, the cable provided has a female yellow plug, female white plug and male red plug.
you have to sacrifice the cable by cutting the male red plug to solder a usb cable

callumsmith1989
Posts: 36
Joined: Tue May 17, 2016 7:45 am

Re: Powering gearbest screen

Post by callumsmith1989 » Wed Aug 03, 2016 4:08 am

SidSilver wrote:
callumsmith1989 wrote:Thanks for the reply. I was hoping to test that it's working before modding (and cutting red rca plug).

Any idea how I can easily do this? As I said, the cable provided has a female yellow plug, female white plug and male red plug.
you have to sacrifice the cable by cutting the male red plug to solder a usb cable
What I don't understand is the screen should be able to be used out of the box with the cable, right? I don't mean for the Gbz but with its natural 12v. I'm keen to test it is operational before modding it for the gbz.

User avatar
Fleder
Posts: 849
Joined: Thu May 05, 2016 9:04 am
Location: Germany
Has thanked: 183 times
Been thanked: 258 times

Re: Powering gearbest screen

Post by Fleder » Wed Aug 03, 2016 4:48 am

There are male to male cables for this, which i have used to test my displays before touching them.
To make sure they were not DOA.

Something like this: https://www.amazon.com/Premium-Audio-Vi ... s=av+cable

callumsmith1989
Posts: 36
Joined: Tue May 17, 2016 7:45 am

Re: Powering gearbest screen

Post by callumsmith1989 » Wed Aug 03, 2016 7:01 am

Fleder wrote:There are male to male cables for this, which i have used to test my displays before touching them.
To make sure they were not DOA.

Something like this: https://www.amazon.com/Premium-Audio-Vi ... s=av+cable
Hi

Thanks for the advice. Unfortunately I can't see how the male red plug from the screen could plug into that cable?

It seems strange the screen comes with a rca cable that has two female and one male plug, it doesn't make sense to me and makes me think there is something obvious I am missing as the screen is shipped out that way, ready to be plugged in an used.

Regards,
Callum

User avatar
Fleder
Posts: 849
Joined: Thu May 05, 2016 9:04 am
Location: Germany
Has thanked: 183 times
Been thanked: 258 times

Re: Powering gearbest screen

Post by Fleder » Wed Aug 03, 2016 7:31 am

callumsmith1989 wrote:Hi

Thanks for the advice. Unfortunately I can't see how the male red plug from the screen could plug into that cable?

It seems strange the screen comes with a rca cable that has two female and one male plug, it doesn't make sense to me and makes me think there is something obvious I am missing as the screen is shipped out that way, ready to be plugged in an used.

Regards,
Callum
Those are for Video only (the ones i have wrote about before).

The one you are talking about is the cable for power.
All screens i bought came with another cable for this. Female AV/Composite/RCA to bare wires.
This should be used to connect your red V+ to a power source of some sort.

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest