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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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Sign board in question is a LaBelle industries express 152 (of around
1989 vintage) that works, but is missing the keyboard and a hunt for a replacement has been futile. I found a wired keyboard from the same manufacturer, but there is no place to plug it into the sign. The IR receiver in the sign is a philips TDA3047 that uses a 36Khz input signal. Is it safe to assume I'd possibly be able to somehow program this using philips IR protocol using a universal remote? If not, what options do I have aside from tossing this into the trash? I opened up the wired keyboard, and it's a simple switch matrix setup with 20 pin connector. Thanks, Alex |
#2
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On 22 Oct 2006 17:58:46 -0700, "427Cobraman"
wrote: Sign board in question is a LaBelle industries express 152 (of around 1989 vintage) that works, but is missing the keyboard and a hunt for a replacement has been futile. I found a wired keyboard from the same manufacturer, but there is no place to plug it into the sign. The IR receiver in the sign is a philips TDA3047 that uses a 36Khz input signal. Is it safe to assume I'd possibly be able to somehow program this using philips IR protocol using a universal remote? If not, what options do I have aside from tossing this into the trash? I opened up the wired keyboard, and it's a simple switch matrix setup with 20 pin connector. Thanks, Alex Are there any external jacks? DB9? Round DIN? Headphone style? Some of the scrolling signs (Alpha, for example) have a serial port for connecting a PC and they have PC software for doing the programming. John |
#3
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No external jacks. There is a 20 pin connector inside on the PC board
that has lines going to the eeprom as well as a sram chip. The output from the ir decoder appears to go to one leg of an octal buffer IC. Most of the traces are hidden under the LED modules, so it's hard to be sure where they all go. The keyboard I found has a 10 x 2 pin connector on it but only about 15 of the lines are used. I just tried using a universal remote using various phillips product setup codes to no avail. Also tried using a wireless PC keyboard, but it probably doesn't use philips protocol. Are there any external jacks? DB9? Round DIN? Headphone style? Some of the scrolling signs (Alpha, for example) have a serial port for connecting a PC and they have PC software for doing the programming. John |
#4
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I have a complete Labelle L.E.D. sign with remote and manual I would be
willing to part with. Make me an offer I can't refuse !!!!!!! Dick "427Cobraman" wrote in message oups.com... No external jacks. There is a 20 pin connector inside on the PC board that has lines going to the eeprom as well as a sram chip. The output from the ir decoder appears to go to one leg of an octal buffer IC. Most of the traces are hidden under the LED modules, so it's hard to be sure where they all go. The keyboard I found has a 10 x 2 pin connector on it but only about 15 of the lines are used. I just tried using a universal remote using various phillips product setup codes to no avail. Also tried using a wireless PC keyboard, but it probably doesn't use philips protocol. Are there any external jacks? DB9? Round DIN? Headphone style? Some of the scrolling signs (Alpha, for example) have a serial port for connecting a PC and they have PC software for doing the programming. John |
#5
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Just wanted to update. I found a gentleman who offered me two IR
keyboards for my sign. Thanks for the assistance all! P.S. Dick, What model is your sign? Dick wrote: I have a complete Labelle L.E.D. sign with remote and manual I would be willing to part with. Make me an offer I can't refuse !!!!!!! Dick "427Cobraman" wrote in message oups.com... No external jacks. There is a 20 pin connector inside on the PC board that has lines going to the eeprom as well as a sram chip. The output from the ir decoder appears to go to one leg of an octal buffer IC. Most of the traces are hidden under the LED modules, so it's hard to be sure where they all go. The keyboard I found has a 10 x 2 pin connector on it but only about 15 of the lines are used. I just tried using a universal remote using various phillips product setup codes to no avail. Also tried using a wireless PC keyboard, but it probably doesn't use philips protocol. Are there any external jacks? DB9? Round DIN? Headphone style? Some of the scrolling signs (Alpha, for example) have a serial port for connecting a PC and they have PC software for doing the programming. John |
#6
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Labelle model 202 LA EXPRESS is what it says on the label. Let me know if
you want it because I have to start hunting for the manual. Dick "427Cobraman" wrote in message ps.com... Just wanted to update. I found a gentleman who offered me two IR keyboards for my sign. Thanks for the assistance all! P.S. Dick, What model is your sign? Dick wrote: I have a complete Labelle L.E.D. sign with remote and manual I would be willing to part with. Make me an offer I can't refuse !!!!!!! Dick "427Cobraman" wrote in message oups.com... No external jacks. There is a 20 pin connector inside on the PC board that has lines going to the eeprom as well as a sram chip. The output from the ir decoder appears to go to one leg of an octal buffer IC. Most of the traces are hidden under the LED modules, so it's hard to be sure where they all go. The keyboard I found has a 10 x 2 pin connector on it but only about 15 of the lines are used. I just tried using a universal remote using various phillips product setup codes to no avail. Also tried using a wireless PC keyboard, but it probably doesn't use philips protocol. Are there any external jacks? DB9? Round DIN? Headphone style? Some of the scrolling signs (Alpha, for example) have a serial port for connecting a PC and they have PC software for doing the programming. John |
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