LCD display for Marantz

[chokh]

Hi all, I would find some LCD displays for my old Marantz SA11s1 and S2 sacd player. Anyone has this LCD display?

 

[chokh]

May be other ways to exchange an OLED display replaced of the original LCD?

 

[NareshBrd]

Search Chinese suppliers using original part number.

 

[chokh]

Search Chinese suppliers using original part number.

Hi,No part number found on the LCD.Also no details information inside the SA11S1 service manual.Thanks

 

[NareshBrd]

There should be a chip to drive the LCD, start from there....

 

[chokh]

I have found a part number with SA11s1 service manual. TRULY 96x35 negative WSTN LCD,00MHQ21202990. Does anyone can find this LCD.I have seraching the Chineses LCD supplies but no result!

 

[NareshBrd]

Search for 96 x 40 LCD, so many mm diagonal.
Please post a photo, even from manual.
These are generic in small calculators and so on.

 

[NareshBrd]

https://www.google.com/url?sa=t&rct...-module.html&usg=AOvVaw1SDjPmab-1A4BboScTeDNT

https://www.google.com/url?sa=t&rct...aracter-lcd/&usg=AOvVaw13tCt0cbhTeF6u_SPPkYFq

And so on...

 

[chokh]

Thanks you information about the LCD sources.I had brought some LCD and OLED but seems not working with my cd player.Here are some photos and schematic.

 

[NareshBrd]

That last photo looks like fluorescent to me, not LCD. Or OLED.
From the schematic, it is obvious that the unit has processing built in, so a series of signals is converted to display by that.

It seems to be working.

The way to build one from scratch would be to decode the signals, and interpret using a Raspberry Pi /Arduino / PIC or similar small unit, which will then display the information.
Not my field of expertise, sorry about that.
You can buy another good quality unit for less than $100, and many CD / DVD factories are closed.
The drives themselves are an option or are not installed from new computers.

Bear that in mind.

 

[manus pladchareon]

now i see the same problem for SA-11S1 model cannot find LCD parts

 

[mjz3348]

My LCD panel starting to fail also - Marantz SA=11S1. Sometimes it would work, but mostly it flakes out. Lately it doesn't come on. Is it likely the panel itself, or the chip which drives it? Any help welcome. thanks

 

[vt4c]

I've also tried to locate the replacement display to no avail.....🙁

I made modification to the display of my Marantz SA1-S1 quite some time now....

IIRC, I measured the V0 voltage and this fluctuated a bit and corresponds to the contrast of the display. What I did was to forced a voltage of about 5.7V using a 6V regulator (78L06. Need to buy a few to check for the correct output voltage) to the display connection where the RY10 and V0 are located. To reduce the current, I added a 1K ohms resistor. I guessed the V0 - V4 are the biasing voltage for the display that feeds and control the contrast of the display

This resolved the display flickering/display-off issue. Unfortunately, this will disable the contrast control available from the SA11-S1.

It works for me until now. 🙂

 

[mjz3348]

At this point having a display is better than none (or contrast). Do you have a schematic showing where I make the changes?

 

[vt4c]

The schematic of the display can be found at post #9 - first image

 

[mjz3348]

Excellent- thanks. I missed it going through the thread.
(So the lcd panel is probably not the issue, but the driving circuit. Putting in 78L06 solved the problem for you (and hopefully for me)).

 

[mjz3348]

Is there a suggested (i.e. easier) way to get to the PCB board where the mods are to be done?

 

[georgehifi]

Any one have more info on this as my display is also misbehaving, sometimes no problem for a few mins even for a day, then starts to blink on some random segments.???

Cheers George