Changes
As an Orion branded CPC has been found, moved it to the "Somehow used" category
[[Category:Amstrad Products]][[Category:CPC History]][[Category:CPC Internal Components]]
== LK1,LK2,LK3 ==
LK1,LK2,LK3 connect are optional links on the CPC mainboard, connected to [[8255#PPI Port B|PPI Port B]], Bit1-3. The links select the manufacturer distributor name (which is displayed by the BIOS in the power-up boot message). These LKs exist on all CPC mainboards (in CPC Plus/GX4000 schematics they are named LK101,LK102,LK103). By default, LK1-LK3 are not installed (Amstrad). Other combinations are LK2 installed in german [[Schneider]] models, and LK1+LK2 in australian [[Awa]] models.
{|{{Prettytable|width: 700px; font-size: 2em;}}
|''Bit 3 (LK3)''||''Bit 2 (LK2)''||''Bit 1 (LK1)''||''Distributor Name'' ||''Usage''
|-
|0(link installed)||0(link installed)||0(link installed)||[[Isp]]||None
|-
|0(link installed)||0(link installed)||1(no link) ||[[Triumph]]||None
|-
|0(link installed)||1(no link) ||0(link installed)||[[Saisho]]||None
|-
|0(link installed)||1(no link) ||1(no link) ||[[Solavox]]||See below
|-
|1(no link) ||0(link installed)||0(link installed)||[[Awa]] (australian ||Australian CPCs)
|-
|1(no link) ||0(link installed)||1(no link) ||[[Schneider]] (german ||German CPCs)until late 1987
|-
|1(no link) ||1(no link) ||0(link installed)||[[Orion]]||None
|-
|1(no link) ||1(no link) ||1(no link) ||[[Amstrad]] (default)||Default, used in most countries
|-
|}
* '''Note:''' Some of the brand names seem to include slight mis-spellings: "0Awa" means LK installedand "Orion" are more commonly written all uppercase, "AWA" and "ORION". And, if below speculations are correct, "Isp" and "Triumph" would refer to "ISP KG" and "Triumph-Adler".* '''Note:''' In the CPC Plus schematics, the links are named LK101,LK102,LK103 - although on the actual CPC Plus mainboard the normal names are used: LK1,LK2,LK3.
== Used Brand Names ==
=== Amstrad ===
[[File:Amstrad.png|thumb|left|120px|Amstrad Logo]]
'''Amstrad''', being the company that has developed the CPC, is the default brand name shown in the boot message in most countries.
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=== Awa ===
=== Schneider ===
[[Image:Schneider Computer Division logo.jpg|thumb|left|120px|Schneider Logo]]
'''Schneider Computer Division''' exclusively distributed the CPC on the german market until their partnership with Amstrad ended around late 1987 or early 1988.
The german models were shipped with custom [[Schneider]] logos on the keyboard, displayed Schneider in the boot message, and, in case of the 464/664, they were produced with uncommon grey control keys (the english/french/spanish models all used the Amstrad logo on the keyboard, and colorful control keys on the 464/664; not on 6128).
On the contrary, german CPC keyboards never included support for german umlauts - unlike later french/spanish models which do support some accented letters.
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== Somehow used ==
=== Solavox ===
=== Orion ===
[[Image:CTM644 05.jpg|100px120px|thumb|CTM644 Monitor]]'''ORION Electric Co,. Ltd.''' is a japanese company, founded 1958 by Shigemasa Otake. In an [[LK-selectable Brand Names#Interview|the interview]], Alan Sugar Cliff Lawson has confirmed that Amstrad planned to export CPCs to "far east", using [[Orion]] as a partner. As with some other brand names, Amstrad 'converted' the upper-case "ORION" to "Orion" in the boot message. As far as known, the partnership didn't worked in that direction - there have been no CPCs sold using the Orion brand. However, it worked the opposite way around: Amstrads [[CTM640/CTM644]] and [[GT64/GT65]] monitors contain cathode ray tubes from ORION.
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== Unused Brand Names ==
=== Isp ===
'''Isp''' might refer to '''ISP KG Dieter Lather''', which operates (from 1975 until today, 2010) as european distributor for ORION products. The [[LK-selectable Brand Names#Interview|interview]] doesn't confirm whether or not Amstrad was referring to ISP KG. However, there is no other big electronics company known to use "ISP" or "Isp" as brand name and being active back in 1983.
Considering that Amstrad did have some relations with ORION, it doesn't seem too unlikely that they also planned to work with ISP KG. Although, as far as known, ISP never rebadged the ORION products as ISP products, so there would have been no real requirement for the [[Isp]] boot message.
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=== Saisho ===
Saisho is a japanese-sounding brand name used by the UK based retailer Dixons (Currys).
According to http://www.audiotools.com, the [[Saisho]] brand is [possibly among others] used "for low budget, Asian sourced products".
The [[LK-selectable Brand Names#Interview|interview]] confirms that Amstrad was referring to this company.
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=== Triumph ===
[[File:Triumph Typewriter.jpg|120px|thumb|Triumph Typewriter]]
'''Triumph''' isn't a unique trademarked brand name, making it difficult to tell which company Amstrad had in mind. There are various [[Triumph|companies using Triumph as brand name]] (most of them being rather unlikely for an Amstrad partnership).
The most serious candidate might be the english/german '''bicycle and typewriter manucfacturer''' Triumph, originally founded 1886 in england. In 1958, Triumph fusioned with Adler, so, if Amstrad was referring to this company, the correct boot message would have been "Triumph-Adler"; this company did actually produce '''computer hardware''' from 1971 up to today (2010).
Other than that it's also possibly that Triumph was an insider joke (like the Arnold dummy-entry in the brand name list). So Amstrad could have as well meant a less serious candidate, like the canadian Triumph rock band. The [[LK-selectable Brand Names#Interview|interview]] doesn't reveal any details here.
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=== Arnold ===
'''Arnold''' is some sort of an internal codename for the CPC series. It's also included as (non-selectable) dummy-entry in the brand name list in the BIOS ROM. The way how the BIOS is programmed makes it necessary to include a leading dummy-entry in that list, basically, this could have been an empty string (a single 00h byte), but for some reason, Amstrad put [[Arnold (Codename)|Arnold]] in there.
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== Other Distributors/Manufacturers ==
=== Indescomp ===
'''Indescomp''' is the official spanish CPC distributor. [[Indescomp]] joined the marked a bit later than AWA and Schneider, and so, it didn't get a LK-selectable brand name in the BIOS. Even later localized models (with spanish character set & keyboard translation) displayed Amstrad in the boot message.
=== Patisonic ===
'''Patisonic''' is the manufacturer of an unlicensed russian CPC clone, the [[Aleste 520EX]]. It uses an EPROM with english CPC 6128 BIOS, with some modifactions (among others, replacing the LK-selectable brand names by hardcoded boot message). === VEB Mikroelektronik === '''VEB Mikroelektronik "Wilhelm Pieck" Muehlhausen ===''' is the manufacturer of an unlicensed east german CPC clone, the [[KC Compact]]. It uses an EPROM with english CPC 6128 BIOS (although it contains only 64K RAM), with some modifactions (among others, replacing the LK-selectable brand names by hardcoded boot message).
== Interview ==
Below is a [[Cliff Lawson]] an email/interview, found at Charles da Silvas webpage ([http://amstrad.cpc.free.fr/article.php?sid=26 link]), related to where [[Cliff Lawson]] gives details on (some) of the optional brand names:
:"Charles,
:It was a marketing exercise with a view to being able to sell it under different brand names in different territories. For example '''Saisho ''' may sound Far Eastern (Japanese?) but it's actually a brand name used by the UK's largest electrical retailer ('''Dixons''') and a lot of their "own brand" product goes under the Saisho name. By having links, if Dixons had wanted some sort of exclusivity deal on the product but badged under their own name (OEM effectively) then this would allow for it. '''Orion ''' were the name of the Far Eastern manuacturer and opened the possibility of it being sold in that market. As far as I know the only ones ever really used were '''Amstrad ''' and '''Schneider ''' (I think the Aussies just got "Amstrad" too).
:Cliff"
Note: The part about australia is correct in so far that the australian CPCs have normal Amstrad logos on the keyboard, however, several people confirmed that they do display "Awa" in the boot message.
== See also ==
* Aside from the distributor links, Amstrad has also used further LKs for various other purposes. See [[LK Links]] for details.
* [[CPCs Worldwide]]
