Veteran's 2nd GBZ (HDMI Screen) (Completed)

[YaYa]

Really well done, simple but clever !

[snoek09]

I have a problem with hooking up this Kedei HDMI.
I'm using a 2500 mAh battery, the backlight turns on but the screen won't.

SpoilerShow

[VeteranGamer]

I have a problem with hooking up this Kedei HDMI.
I'm using a 2500 mAh battery, the backlight turns on but the screen won't.

SpoilerShow

When you say backlight, what do you mean?....

Are you getting the kedei blue intro screen?....

Also where are you wiring the screen to (where is it getting its power from)?....

Are you getting a no signal message?....


.

[snoek09]

I have a problem with hooking up this Kedei HDMI.
I'm using a 2500 mAh battery, the backlight turns on but the screen won't.

SpoilerShow

When you say backlight, what do you mean?....

Are you getting the kedei blue intro screen?....

Also where are you wiring the screen to (where is it getting its power from)?....

Are you getting a no signal message?....


.

I mean something inside the screen lights up. I'm not getting the blue intro screen or any visuals on the screen.

I've had it wired to the power strip and directly to the pi zero with the same result.

[VeteranGamer]

I have a problem with hooking up this Kedei HDMI.
I'm using a 2500 mAh battery, the backlight turns on but the screen won't.

SpoilerShow

When you say backlight, what do you mean?....

Are you getting the kedei blue intro screen?....

Also where are you wiring the screen to (where is it getting its power from)?....

Are you getting a no signal message?....


.

I mean something inside the screen lights up. I'm not getting the blue intro screen or any visuals on the screen.

I've had it wired to the power strip and directly to the pi zero with the same result.

Can you show me your wiring setup...

The screen...
And from the screen to the Pi zero or power strip

Also please can you show what/how your powering it all (power setup)

.

[snoek09]

Here's one picture with the whole setup and one specific for the screen to the pi. You can also see the white light coming from the screen.

SpoilerShow

[VeteranGamer]

Here's one picture with the whole setup and one specific for the screen to the pi. You can also see the white light coming from the screen.

SpoilerShow

your wiring seems ok.....

try the ribbon cable, remove and reseat.....

also the way you have the screen connected to the Pi Zero, you should be able to power the screen directly from the Pi zero with just a USB cable (powering via the Pi zero micro usb port)....

you can do away with the power strip/powerboost/battery for now, this is good for when testing

[VeteranGamer]

this is a wiring diagram for how i used the audio from the hdmi screen.....





i used a B103 potentiometer and a PJ-324 headphone socket....
others can be used, you just have to use the same pinouts (whichever way they are on the different componants)


Headphones socket guide....



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[YaYa]

awesome ! thanks veteran !

[Abunchahicks]

Are you still getting stereo sound from the headphones? It looks like you're only using the left output from the amp.