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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Looking for 2x16 LCD PANEL for Minolta 2300DL printer
I recently purchased a used 2300DL printer, but the LCD in the control
panel cracked in shipping. The PCB and all surrounding plastic pieces are in fine, just the actual LCD panel itself was damaged. The control circuitry is on the supporting PCB, I only need the actual LCD. It is a 2x16 character display, with 10 pins, non-backlit. Pins are at top of LCD panel, slightly left of center. It's overall dimensions are about 1.5" x 2", with an active area about 0.5" x 1.75". Does this sound like an industry standard LCD? Does anyone have a non-working 2300DL, 2200DL, 2300W, etc printer with a working LCD panel? Does anyone have a similar panel pulled from an obscure piece of hardware that might work? Any help would be much appreciated, Awol awol [AT] i-hacked [D0T] com |
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#2
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Den Tue, 22 Mar 2005 00:38:50 -0600. skrev Awol [AT] i-hacked [D0T] com:
It is a 2x16 character display, with 10 pins, non-backlit. Pins are at top of LCD panel, slightly left of center. It's overall dimensions are about 1.5" x 2", with an active area about 0.5" x 1.75". Does this sound like an industry standard LCD? Yes; but you will likely have to move the connector to the new panel -- Med venlig hilsen Christian Treldal |
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#3
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I can handle rewiring a connector or jumpering as needed to retrofit an
alternate display. There's 1/4"+ of space between the LCD and underlying PCB - plenty of room for a wiring/mounting adapter. Any sources or possible part numbers? Awol "Christian Treldal" wrote in message news  Den Tue, 22 Mar 2005 00:38:50 -0600. skrev Awol [AT] i-hacked [D0T] com: It is a 2x16 character display, with 10 pins, non-backlit. Pins are at top of LCD panel, slightly left of center. It's overall dimensions are about 1.5" x 2", with an active area about 0.5" x 1.75". Does this sound like an industry standard LCD? Yes; but you will likely have to move the connector to the new panel -- Med venlig hilsen Christian Treldal |
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#4
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Den Tue, 22 Mar 2005 02:07:27 -0600. skrev Awol [AT] i-hacked [D0T] com:
I can handle rewiring a connector or jumpering as needed to retrofit an alternate display. There's 1/4"+ of space between the LCD and underlying PCB - plenty of room for a wiring/mounting adapter. Any sources or possible part numbers? What you need is a 16x2 display LCDs which use the standard Hitachi 44780 controller or the million comparitible ones there are out there. http://www.myke.com/lcd.htm I think you can get it from your local electronics pusher. Awol "Christian Treldal" wrote in message news Den Tue, 22 Mar 2005 00:38:50 -0600. skrev Awol [AT] i-hacked [D0T] com: It is a 2x16 character display, with 10 pins, non-backlit. Pins are at top of LCD panel, slightly left of center. It's overall dimensions are about 1.5" x 2", with an active area about 0.5" x 1.75". Does this sound like an industry standard LCD? Yes; but you will likely have to move the connector to the new panel -- Med venlig hilsen Christian Treldal -- Med venlig hilsen Christian Treldal |
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#5
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No, I'm looking for the bare LCD glass - no PCB, no controller chip. The
ten pins come straight out of the glass. I've used 44780-type LCDs before, and this looks nothing like any I've seen. I'll post pics tonight. Thanks, Awol awol [AT] i-hacked [D0T] com "Christian Treldal" wrote in message news Den Tue, 22 Mar 2005 02:07:27 -0600. skrev Awol [AT] i-hacked [D0T] com: I can handle rewiring a connector or jumpering as needed to retrofit an alternate display. There's 1/4"+ of space between the LCD and underlying PCB - plenty of room for a wiring/mounting adapter. Any sources or possible part numbers? What you need is a 16x2 display LCDs which use the standard Hitachi 44780 controller or the million comparitible ones there are out there. http://www.myke.com/lcd.htm I think you can get it from your local electronics pusher. Awol "Christian Treldal" wrote in message news Den Tue, 22 Mar 2005 00:38:50 -0600. skrev Awol [AT] i-hacked [D0T] com: It is a 2x16 character display, with 10 pins, non-backlit. Pins are at top of LCD panel, slightly left of center. It's overall dimensions are about 1.5" x 2", with an active area about 0.5" x 1.75". Does this sound like an industry standard LCD? Yes; but you will likely have to move the connector to the new panel -- Med venlig hilsen Christian Treldal -- Med venlig hilsen Christian Treldal |
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#6
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In article sYV%d.67$WM6.44@okepread07, "Awol [AT] i-hacked [D0T] com"
writes No, I'm looking for the bare LCD glass - no PCB, no controller chip. The ten pins come straight out of the glass. I've used 44780-type LCDs before, and this looks nothing like any I've seen. It can't be a 16x2 bare LCD with only 10 pins, that would need 96+16 pins for all the rows and columns (normally done with a conductive rubber strip). It must be something else. -- Tim Mitchell |
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#7
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Upon closer inspection, a controller chip is imbedded in the LCD
panel, mounted right on the glass. No markings of any kind. I'm now guessing (hoping?) that it's a 44780-type controller, in a 4-bit configuration. Here are a few pics: http://204.119.31.17/support/ebay/lcd_1.jpg http://204.119.31.17/support/ebay/lcd_2.jpg http://204.119.31.17/support/ebay/lcd_3.jpg http://204.119.31.17/support/ebay/lcd_4.jpg Any ideas? Awol awol [AT] i-hacked [D0T] com Tim Mitchell wrote: "Awol [AT] i-hacked [D0T] com" writes It can't be a 16x2 bare LCD with only 10 pins, that would need 96+16 pins for all the rows and columns (normally done with a conductive rubber strip). It must be something else. -- Tim Mitchell |
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#8
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On 23 Mar 2005 08:08:26 -0800, "Awol [AT] i-hacked [D0T] com"
wrote: Upon closer inspection, a controller chip is imbedded in the LCD panel, mounted right on the glass. No markings of any kind. I'm now guessing (hoping?) that it's a 44780-type controller, in a 4-bit configuration. Here are a few pics: http://204.119.31.17/support/ebay/lcd_1.jpg http://204.119.31.17/support/ebay/lcd_2.jpg http://204.119.31.17/support/ebay/lcd_3.jpg http://204.119.31.17/support/ebay/lcd_4.jpg Any ideas? Awol awol [AT] i-hacked [D0T] com I would look for manufacturer markings, failing that, scope the lines and see if I can make a Hitachi compatible display work. Tim Mitchell wrote: "Awol [AT] i-hacked [D0T] com" writes It can't be a 16x2 bare LCD with only 10 pins, that would need 96+16 pins for all the rows and columns (normally done with a conductive rubber strip). It must be something else. -- Tim Mitchell |
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#9
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Den Wed, 23 Mar 2005 08:08:26 -0800. skrev Awol [AT] i-hacked [D0T] com:
Upon closer inspection, a controller chip is imbedded in the LCD panel, mounted right on the glass. No markings of any kind. I'm now guessing (hoping?) that it's a 44780-type controller, in a 4-bit configuration. Here are a few pics: http://204.119.31.17/support/ebay/lcd_1.jpg http://204.119.31.17/support/ebay/lcd_2.jpg http://204.119.31.17/support/ebay/lcd_3.jpg http://204.119.31.17/support/ebay/lcd_4.jpg Any ideas? Yep, as I told you take any Hitachi based display, attach a piece of flat cable to display and and plug the other end in the socket, where the plug in the top right corner of lcd_4.jpg goes. Be shure that pin 1 goes to pin 1 -- Med venlig hilsen Christian Treldal |
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#10
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I FIGURED IT OUT! It turns out that it is a 44780-type controller, but the
pin-out is -completely- different. I've now got a larger, backlit 2x16 display hacked in, hanging from the control panel. Now I need to find a smaller one that will fit in the original space. (Overall dimensions ~1.5" x 2", with an active area ~ 0.5" x 1.75".) The original LCD is made by (or is compatible with) ROHM brand displays. Here's a spec-sheet: http://www.rohm.com/products/databoo...f/rcm2228r.pdf Pinout: 01: RS 02: RW 03: E 04: DATA4 05: DATA5 06: DATA6 07: DATA7 08: GND 09: +5V 10: Contrast voltage A standard 44780 is: 01: GND 02: +5V 03: Contrast voltage 04: RS 05: RW 06: E 07: DATA0 08: DATA1 09: DATA2 10: DATA3 11: DATA4 12: DATA5 13: DATA6 14: DATA7 So, if anyone has a 10 pin LCD that they are unable to figure out, check the above pinout and spec sheet - it might be what you are looking for. Awol awol [@t] i-hacked [D0T] com "Christian Treldal" wrote in message news Den Wed, 23 Mar 2005 08:08:26 -0800. skrev Awol [AT] i-hacked [D0T] com: Upon closer inspection, a controller chip is imbedded in the LCD panel, mounted right on the glass. No markings of any kind. I'm now guessing (hoping?) that it's a 44780-type controller, in a 4-bit configuration. Here are a few pics: http://66.28.88.130/support/ebay/lcd_1.jpg http://66.28.88.130/support/ebay/lcd_2.jpg http://66.28.88.130/support/ebay/lcd_3.jpg http://66.28.88.130/support/ebay/lcd_4.jpg Any ideas? Yep, as I told you take any Hitachi based display, attach a piece of flat cable to display and and plug the other end in the socket, where the plug in the top right corner of lcd_4.jpg goes. Be shure that pin 1 goes to pin 1 -- Med venlig hilsen Christian Treldal |
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#11
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The size I listed was wrong. Should be:
"Overall dimensions ~ 1" x 2", with an active area ~ 0.5" x 1.75" Awol ----- Original Message ----- From: "Awol [AT] i-hacked [D0T] com" Newsgroups: comp.periphs.printers,sci.electronics.repair Sent: Saturday, April 09, 2005 4:44 PM Subject: Looking for 2x16 LCD PANEL for Minolta 2300DL printer I FIGURED IT OUT! It turns out that it is a 44780-type controller, but the pin-out is -completely- different. I've now got a larger, backlit 2x16 display hacked in, hanging from the control panel. Now I need to find a smaller one that will fit in the original space. (Overall dimensions ~1.5" x 2", with an active area ~ 0.5" x 1.75".) |
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