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Unknown HD61830 display
http://forum.lcdinfo.com/viewtopic.php?f=6&t=240		 Page 1 of 1
Author:  Jesus [ Sun May 11, 2003 12:40 ]
Post subject:  Unknown HD61830 display
Hi

i have a display with an HD61830A controller, but it has no manufacture label on it. Perhaps somebody can help me with it.

It has 128x64 dots and on its back it has the HD61830A controller, a OKI M5260 and a Philips PC74HC245T [Philips homepage: 5V Transceiver with Direction Pin; Non-Inverting (3-State)]. There is also a small type print on the board: HY-301
Under the display (between the board and the diplay a some chips, too.

The connector of the board has 17 pins and the ports DB0-DB7 of the HD61830 are connected to the Philips chip (not directly to the connector pins of the display board).

If have search with Google, but nothing usefull was found ...

Does somebody knows this display or the producer?

Thanks in advance,
Jesus
Author:  Guest [ Sun May 11, 2003 16:28 ]
Post subject: 
I have looked at the connections a little bit...

The pins of the board connector (the 17-pin-thing) is as follows:

1-8 - go through data in/out of the Philips chip
9 - unknown
10 - port DIR of the Philips chip [selector for input/output]
11 - unknown
12 - Vcc (of the Philips chip)
13 - unknown
14 - Ground
15 - negated OE of the Philips chip [Output enable input]
16-17 - background lightning

The three unknown pins are not directly connected to the Philips chip or the HD61830 and i don't know, where they are routed too ... :(
Author:  Jesus [ Sun May 11, 2003 17:15 ]
Post subject: 
Ups... wasn't logged in ...
Author:  Jesus [ Sun May 11, 2003 18:04 ]
Post subject: 
It seems, that i have found the producer of the display: Vikay Technologies (http://www.vikay.com.my), but they haven't the display in there catalog.

I have now written a email to there contact adress, perhaps they can help me...
Author:  Jesus [ Sun May 11, 2003 18:38 ]
Post subject: 
It seems, that i should read more carefully :)

It is a Vikay VK5081 with 160x80 dots...
http://www.vikay.com.my/vk5081.htm

A question to the expereanced people in this board:
I'm right, that i only must supply +5V to the module and it produces the up to -24V by itself for the the lcd drive?
Author:  Henri [ Wed May 14, 2003 13:10 ]
Post subject: 
Looking at this datasheet I don't see any pins for the contrast voltage and it also includes a contrast potentiometer so I think it produces the contrast voltage itself.

Image
Author:  vikay [ Thu Jan 15, 2009 23:40 ]
Post subject: 
Hello

Please call me @ 818-700-4101 or email me @ sbruckner@vikay.us

Vikay has standard LCD's and Vikay males custom LCD's

Thanks Steve

Steve Bruckner
Vikay America, Inc.
:D
Author:  vikay [ Thu Jan 15, 2009 23:44 ]
Post subject: 
vikay wrote:
Hello

Please call me @ 818-700-4101 or email me @ sbruckner@vikay.us

Vikay has standard LCD's and Vikay makes custom LCD's

Thanks Steve

Steve Bruckner
Vikay America, Inc.
:D
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