NLQ401 - Revision history

Ygdrazil at 10:30, 26 August 2014

2014-08-26T10:30:59Z

← Older revision		Revision as of 10:30, 26 August 2014
Line 82:		Line 82:

	* http://en.wikipedia.org/wiki/Centronics - wikipedia on ''Centronics Data Computer Corporation'' (includes info about their GLP "Great Little Printer" series)		* http://en.wikipedia.org/wiki/Centronics - wikipedia on ''Centronics Data Computer Corporation'' (includes info about their GLP "Great Little Printer" series)

			[[Category:Peripherals]]
			[[Category:Printers and printer ports]]

2010-09-28T19:18:07Z

Added german NLQ401 user manual

← Older revision		Revision as of 19:18, 28 September 2010
Line 18:		Line 18:
	== Manuals ==		== Manuals ==

	* User Manual...		* [[Media:Schneider NLQ401 User Manual (German).pdf\|NLQ401 User Manual (German)]]
	* [[Media:Schneider NLQ401 Service Manual (German).pdf\|NLQ401 Service Manual (German)]]		* [[Media:Schneider NLQ401 Service Manual (German).pdf\|NLQ401 Service Manual (German)]]
	* [[Media:UPD7811G Datasheet.pdf\|uPD7811G Datasheet]] (8bit CPU with 4096 byte ROM, 256 byte RAM, 44 I/O lines)		* [[Media:UPD7811G Datasheet.pdf\|uPD7811G Datasheet]] (8bit CPU with 4096 byte ROM, 256 byte RAM, 44 I/O lines)

2010-09-12T01:48:03Z

Reviews

← Older revision		Revision as of 01:48, 12 September 2010
Line 14:		Line 14:
	== Reviews ==		== Reviews ==

	* [[CPC Schneider International]], March 1985, page 24 (german) (this review contains some misleading info; among others claiming that it can print in 11 different character heights)		* [[CPC Schneider International]], March 1985, page 24 (german) (this review contains some misleading info; among others claiming that it can print in 11 different character heights, as well as claiming that it'd support "user defined" "8bit" characters - which probably refers to the 7-pin graphics mode)

	== Manuals ==		== Manuals ==

2010-09-12T01:45:51Z

Reviews

← Older revision		Revision as of 01:45, 12 September 2010
Line 14:		Line 14:
	== Reviews ==		== Reviews ==

	* [[CPC Schneider International]], March 1985, page 24 (german)		* [[CPC Schneider International]], March 1985, page 24 (german) (this review contains some misleading info; among others claiming that it can print in 11 different character heights)

	== Manuals ==		== Manuals ==

2010-09-11T02:40:24Z

Reviews

← Older revision		Revision as of 02:40, 11 September 2010
Line 14:		Line 14:
	== Reviews ==		== Reviews ==

	* CPC Schneider International, March 1985, page 24 (german)		* [[CPC Schneider International]], March 1985, page 24 (german)

	== Manuals ==		== Manuals ==

2010-09-11T02:27:58Z

Manuals

← Older revision		Revision as of 02:27, 11 September 2010
Line 11:		Line 11:
	* As seen on the photo, the board contains a [[uPD7810/uPD7811\|uPD7811G]] processor, but its internal ROM is disabled via MODE0/MODE1 pins, so it does act more like a ROM-less uPD7810. According to the NLQ401 service manual either uPD7810 or uPD7811 can be used.		* As seen on the photo, the board contains a [[uPD7810/uPD7811\|uPD7811G]] processor, but its internal ROM is disabled via MODE0/MODE1 pins, so it does act more like a ROM-less uPD7810. According to the NLQ401 service manual either uPD7810 or uPD7811 can be used.
	* The 16K EPROM is mapped to address 0000h..3FFFh. The MODE0/MODE1 pins are wired so that external memory uses only 14bit addresses (the upper 2bit of Port F are used as I/O signals, rather than as address bits)		* The 16K EPROM is mapped to address 0000h..3FFFh. The MODE0/MODE1 pins are wired so that external memory uses only 14bit addresses (the upper 2bit of Port F are used as I/O signals, rather than as address bits)

			== Reviews ==

			* CPC Schneider International, March 1985, page 24 (german)

	== Manuals ==		== Manuals ==

2010-09-04T13:03:21Z

Technical

← Older revision		Revision as of 13:03, 4 September 2010
Line 1:		Line 1:
	The [[NLQ401]] is a Near Letter Quality printer from [[Schneider]], for use with German Schneider CPC computers. The '''SFT401''' tractor feed add-on was sold separately. Both NLQ401 and SFT401 were advertised as official Schneider expansions on the back of the german CPC6128 users manual.		The [[NLQ401]] is a Near Letter Quality printer from [[Schneider]], for use with German Schneider CPC computers. The '''SFT401''' tractor feed add-on was sold separately. Both NLQ401 and SFT401 were advertised as official Schneider expansions on the back of the german CPC6128 users manual.

	== ~~Technical~~ ==		== General Specifications ==

			For (detailed) general information about Amstrad/Scheider printers, see:
			{{AmstradPrinterLinks}}

	== Hardware Notes ==		== Hardware Notes ==

2010-09-02T01:03:15Z

Hardware Notes

← Older revision		Revision as of 01:03, 2 September 2010
Line 6:		Line 6:

	* The NLQ401 PCB can be optionally fitted with RS232 interface (25pin DSUB connector, and 75188/75189 voltage converters, this might also require a different firmware version).		* The NLQ401 PCB can be optionally fitted with RS232 interface (25pin DSUB connector, and 75188/75189 voltage converters, this might also require a different firmware version).
	* ~~The~~ board contains a [[uPD7810/uPD7811\|uPD7811G]] processor.		* As seen on the photo, the board contains a [[uPD7810/uPD7811\|uPD7811G]] processor, but its internal ROM is disabled via MODE0/MODE1 pins, so it does act more like a ROM-less uPD7810. According to the NLQ401 service manual either uPD7810 or uPD7811 can be used.
			* The 16K EPROM is mapped to address 0000h..3FFFh. The MODE0/MODE1 pins are wired so that external memory uses only 14bit addresses (the upper 2bit of Port F are used as I/O signals, rather than as address bits)

	== Manuals ==		== Manuals ==

2010-09-01T23:56:38Z

Manuals

← Older revision		Revision as of 23:56, 1 September 2010
Line 13:		Line 13:
	* [[Media:Schneider NLQ401 Service Manual (German).pdf\|NLQ401 Service Manual (German)]]		* [[Media:Schneider NLQ401 Service Manual (German).pdf\|NLQ401 Service Manual (German)]]
	* [[Media:UPD7811G Datasheet.pdf\|uPD7811G Datasheet]] (8bit CPU with 4096 byte ROM, 256 byte RAM, 44 I/O lines)		* [[Media:UPD7811G Datasheet.pdf\|uPD7811G Datasheet]] (8bit CPU with 4096 byte ROM, 256 byte RAM, 44 I/O lines)
			* [[Media:UPD78C11A Datasheet.pdf\|uPD78C11A Datasheet]] (CMOS version of uPD7811, this datasheet version includes some info fragments on MODE0/MODE1 pins)

	== ROM Images ==		== ROM Images ==

2010-09-01T23:52:28Z

Technical

← Older revision		Revision as of 23:52, 1 September 2010
Line 3:		Line 3:
	== Technical ==		== Technical ==

	The NLQ401 PCB can be optionally fitted with RS232 interface (25pin DSUB connector, and 75188/75189 voltage converters, this might also require a different firmware version).		== Hardware Notes ==

			* The NLQ401 PCB can be optionally fitted with RS232 interface (25pin DSUB connector, and 75188/75189 voltage converters, this might also require a different firmware version).
			* The board contains a [[uPD7810/uPD7811\|uPD7811G]] processor.

	== Manuals ==		== Manuals ==