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PostPosted: Thu Dec 13, 2007 9:49 
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Joined: Wed Apr 25, 2007 10:56
Posts: 16
Hey, long time since i last visited.

Well i'v made a little collection of lcd screen from various items.

1: inner lcd from nokia 6103 also outer display
Image
Image
Info: 50359p00 mp1.0
609es 4850959
3902330003


2: lcd from sunplus pmp player
Image
Image
info: 03s672b001 - xx - 0012758


3: Motorola v3x lcd
Image
info: 7271338b01
tn5l30134439


4: lcd from Kodak easy share z700 camera
Image
info: 2f60006p00
515as

5: lcd from a epson printer
Image
info: 2f60003p00
314fs

So i was hoping that someone could help me out with hooking em up?

Thanks, Paul


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PostPosted: Fri Dec 14, 2007 17:37 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
The first step for anyone trying to use would be to try to find more information about the displays. Have you tried searching for any information based on the markings on the displays or the actual device models the displays are from ?
Often this kind displays can be difficult to find information for.
One way to proceed could be to try to reverse engineer the connections and communications in the original equipment if it's still working but probably not really worth it trying to go this route.


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PostPosted: Sat Dec 15, 2007 1:04 
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Joined: Wed Apr 25, 2007 10:56
Posts: 16
ok,the only screen that I'm interested in is the sunplus screen because it's fairly large and is also very clear.

I did manage to get a little info on the unit itself.

9-bit video input processor
Data sheet: http://www.nxp.com/acrobat_download/dat ... 113H_2.pdf

WM9711L sound controller but has nothing to do with the screen so i wont bother posting a data sheet also same for the memory.


I could not find any other information on any of the chips, but i will list them here encase your luck is better then mine.

1. 8mx16t1 0 0555 (branded with the marking TA)

2. sunplus spca536a-pb111 0554 mdk0919.00 ( i be leave this is the main processor as spca536a is the model of the pmp also it is a fairly large chip)

The reason I'm using the screen is the unit has damage to the bored and no longer boots.


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PostPosted: Sat Dec 15, 2007 13:08 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
Well I decided to make a quick search.

http://www.gp32x.com/board/index.php?ac ... 28&t=33600

Gives us
Quote:
1. Sunplus (Sunplus) SPCA536 program MIPS RISC MCU R3000-compatible
  Image/Video Compression/decompression Processors
  ROM/Flash/SDRAM interface
  STN/TFT LCD panel controller
  NTSC/PAL TVBS and RGB Monitor interface
  CF/IDE/ISA-like interface for multiple storage devices
  USB 2.0 Device and 1.1 Host/Device interfaces
  CCD/CMOS sensor interface
  CCIR 601/656 Video Input/Output Interfaces
  AC97 Input/Output and PWM-Output Audio Interfaces
  RS232 for program upgrade & debugging
  GPIO for DI/DO & PZT controls
  8-bit ADC inputsADC inputs lookahead


And

http://img297.imageshack.us/my.php?imag ... om2wp3.jpg
http://img120.imageshack.us/my.php?imag ... om2hv5.jpg
http://img154.imageshack.us/my.php?imag ... om2nn9.jpg
http://img120.imageshack.us/my.php?imag ... om2qk5.jpg
http://img222.imageshack.us/my.php?imag ... om2va6.jpg
http://img140.imageshack.us/my.php?imag ... om2se5.jpg


So the SPCA536 includes a TFT controller. Is the display resolution 320x240 ? Your display might be something close to a common pinout.

If you have the PCB of the equipment where your display is from then you should post some high resolution, clear images of the them. They might include some crucial information.

How many conductors are there in the lcd cable ? There might be some other common lcd with datasheet available that matches yours. And with the original PCB you might be able to look for common signals to check if it matches any of the available datasheets.


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PostPosted: Sat Dec 15, 2007 13:11 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
This is a pinout of one 3.5" AUO TFT

Quote:
No Pin name I/O Description
1 XDOFF I Gate output disable
2 XDON I Gate output enable
3 UD I Up/Down control
4 FG I Vertical clock
5 STV2 I/O Vertical start pulse
6 STV1 I/O Vertical start pulse
7 GND I Ground
8 VCC I Power
9 VEE I Gate low voltage
10 VGG I Gate high voltage
11 VCOM I Common electrode
12 STH2 I Horizontal start pulse
13 LR I Left/Right control
14 SP I Power save control pin
15 B5 I Blue data ( MSB )
16 B4 I Blue data
17 B3 I Blue data
18 B2 I Blue data
19 B1 I Blue data
20 B0 I Blue data ( LSB )
21 LD I Data load signal
22 AVSS I Analog ground
23 Vref10 I Gamma input voltage
24 Vref8 I Gamma input voltage
25 Vref5 I Gamma input voltage
26 Vref2 I Gamma input voltage
27 Vref0 I Gamma input voltage
28 AVDD I Analog power
29 INV I EMI reduce function
30 FS I Sample clock
31 G5 I Green data ( MSB )
32 G4 I Green data
33 G3 I Green data
34 G2 I Green data
35 G1 I Green data
36 G0 I Green data ( LSB )
37 GND I Ground
38 R5 I Red data ( MSB )
39 R4 I Red data
40 R3 I Red data
41 R2 I Red data
42 R1 I Red data
43 R0 I Red data ( LSB )
44 DVSS I Digital ground
45 STH1 I/O Horizontal start pulse
46 GND I Ground
47 DVcc I Digital power
48 AVDD I Analog power
49 AVSS I Analog ground
50 VCOM I Common electrode


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PostPosted: Sat Dec 15, 2007 14:44 
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Joined: Wed Apr 25, 2007 10:56
Posts: 16
Ok it seems that your ability to find info is better then mine lol.

Anyway i wasnt able to take the pics for ya but i done just as good, well it seems my scanner produces better images then my camera or maybe it's just my picture taking skills need a touch up.

So umm heres one where most of the chips are located
Image

And heres the back where the sound chip is located
Image

This is what the unit looks like
Image

Yes the pincount is 50
And it is a AUO screen but only 2.4inch

with the device you showed me, in the mympxforums they say that the two devices are almost the same but in a different housing.

Oh and never midn the damage to the bored, i let my friend have a crack to see if he could get it working but he only made matters worse.


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PostPosted: Sat Dec 15, 2007 18:13 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
These pictures look already a lot better. But still they don't show details. Preferably the resolution should be several times larger so that all details can be seen also so that traces on the PCB can be followed for example.
I assume the images you got from the scanner were with much higher resolution.

Even if the display size is smaller it could still be same resolution and even use the same pinout. But it could also not. You could try with a multimeter to see if the pins in the connector match the pinout I posted. I recommend testing the ground pins first to the ground plane of the PCB. Then could try the power supply lines. Power supply from the PCB should be easily found from the capacitor ends.


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PostPosted: Sun Dec 16, 2007 2:32 
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Joined: Wed Apr 25, 2007 10:56
Posts: 16
Hopefully these pictures will be better, if you save the picture then zoom in you can clearly see where all the tracks lead.

Image

Image

Hey this is all i could provide for now as i am really busy this weekend, i will do the pinout as soon as i get the time.

Thanks.

EDIT. i just realized that when the pictures are uploaded some quality is lost. i mite try to send them to your email or some other way to keep the good quality because in the original pictures i can even see the fine numbers on the diodes.


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