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What is this Amiga 2000 mod?
What are the Amiga 1200 timing fixes?The smell of a computer while unboxing itWhy do mac LC network cards take an FPU?Is it possible to expand Amiga 500 rev 8 to 1.5 MB with a 1MB trapdoor expansion?When did Great Valley Products, stop producing hardware?what is the model of the cash registers used in Walmart in the mid to late 90's and very early 2000's?It's now safe to turn off your computerWhen were other inexpensive computers able to recreate “The Amiga Juggler”?How to repair an old motherboardWhat is this Amiga 1200 mod?
I got an Amiga 2000, board Rev. 6 Does anyone know what is is?
(click to enlarge)
hardware amiga-2000
edited 8 hours ago
LangLangC
8571212
asked 9 hours ago
Bartek MalyszBartek Malysz
2446
add a comment |
I got an Amiga 2000, board Rev. 6 Does anyone know what is is?
(click to enlarge)
hardware amiga-2000
edited 8 hours ago
LangLangC
8571212
asked 9 hours ago
Bartek MalyszBartek Malysz
2446
add a comment |
I got an Amiga 2000, board Rev. 6 Does anyone know what is is?
(click to enlarge)
hardware amiga-2000
edited 8 hours ago
LangLangC
8571212
asked 9 hours ago
Bartek MalyszBartek Malysz
2446
I got an Amiga 2000, board Rev. 6 Does anyone know what is is?
(click to enlarge)
hardware amiga-2000
hardware amiga-2000
edited 8 hours ago
LangLangC
8571212
asked 9 hours ago
Bartek MalyszBartek Malysz
2446
edited 8 hours ago
LangLangC
8571212
asked 9 hours ago
Bartek MalyszBartek Malysz
2446
edited 8 hours ago
LangLangC
8571212
edited 8 hours ago
LangLangC
8571212
edited 8 hours ago
LangLangC
8571212
8571212
asked 9 hours ago
Bartek MalyszBartek Malysz
2446
asked 9 hours ago
Bartek MalyszBartek Malysz
2446
asked 9 hours ago
Bartek MalyszBartek Malysz
2446
2446
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
It is not an aftermarket mod. As evidenced from numerous pictures on the net.
Like:
A2000 Revision 6.3 Motherboard - on Big Book of Amiga Hardware – Amiga Models & Clones / Commodore: A2000
As explained there:
At the time, the Rev 4.x was in production, and the new board was desired for new production, as the price crossover from the 256K x 1 to the 256K x 4 memories had been reached. However, the Rev 5 board was completed ahead of the need for it. So the PCB guys did some additional cleanup work on the design, and I think the FCC people got involved, too. Regardless, the resulting Rev 6 motherboards were plagued with problems (in fairness, some were due to the switchover to a 68000 with faster signals, that was also noisier). - Dave Haynie
It's just a late time fix to get it shipping.
–– From: Amiga A2000_R6 Rev.1.38 (05.09.2012) AmigaWiki PDF
Some call it the "funky bridge" as explained in Amiga 2000 Rev 6 to Rev 6.2 (or 6.3) hardware changes.
It appears to be
Rev. 6.2: "Solder series connection of 68 Ohm and 270 pF to the very right of the 4 vias below CN303, other end of the circuit to ground. Eliminates power on Guru".
–– as documented here: AmigaWiki A2000 Mainboard Upgrade
answered 8 hours ago
LangLangCLangLangC
8571212
If somebody can confirm that "Reihenschaltung aus 68 Ohm und 270 pF an die ganz rechte der 4 Durchkontaktierungen unterhalb CN303 löten, anderes Ende der Schaltung an Masse. Beseitigt Einschalt Guru" found here? makes sense
– LangLangC
8 hours ago
1
Yeah, that's exactly what is on the photo.
– Janka
6 hours ago
add a comment |
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1 Answer
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1 Answer
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votes
It is not an aftermarket mod. As evidenced from numerous pictures on the net.
Like:
A2000 Revision 6.3 Motherboard - on Big Book of Amiga Hardware – Amiga Models & Clones / Commodore: A2000
As explained there:
At the time, the Rev 4.x was in production, and the new board was desired for new production, as the price crossover from the 256K x 1 to the 256K x 4 memories had been reached. However, the Rev 5 board was completed ahead of the need for it. So the PCB guys did some additional cleanup work on the design, and I think the FCC people got involved, too. Regardless, the resulting Rev 6 motherboards were plagued with problems (in fairness, some were due to the switchover to a 68000 with faster signals, that was also noisier). - Dave Haynie
It's just a late time fix to get it shipping.
–– From: Amiga A2000_R6 Rev.1.38 (05.09.2012) AmigaWiki PDF
Some call it the "funky bridge" as explained in Amiga 2000 Rev 6 to Rev 6.2 (or 6.3) hardware changes.
It appears to be
Rev. 6.2: "Solder series connection of 68 Ohm and 270 pF to the very right of the 4 vias below CN303, other end of the circuit to ground. Eliminates power on Guru".
–– as documented here: AmigaWiki A2000 Mainboard Upgrade
answered 8 hours ago
LangLangCLangLangC
8571212
If somebody can confirm that "Reihenschaltung aus 68 Ohm und 270 pF an die ganz rechte der 4 Durchkontaktierungen unterhalb CN303 löten, anderes Ende der Schaltung an Masse. Beseitigt Einschalt Guru" found here? makes sense
– LangLangC
8 hours ago
1
Yeah, that's exactly what is on the photo.
– Janka
6 hours ago
add a comment |
It is not an aftermarket mod. As evidenced from numerous pictures on the net.
Like:
A2000 Revision 6.3 Motherboard - on Big Book of Amiga Hardware – Amiga Models & Clones / Commodore: A2000
As explained there:
At the time, the Rev 4.x was in production, and the new board was desired for new production, as the price crossover from the 256K x 1 to the 256K x 4 memories had been reached. However, the Rev 5 board was completed ahead of the need for it. So the PCB guys did some additional cleanup work on the design, and I think the FCC people got involved, too. Regardless, the resulting Rev 6 motherboards were plagued with problems (in fairness, some were due to the switchover to a 68000 with faster signals, that was also noisier). - Dave Haynie
It's just a late time fix to get it shipping.
–– From: Amiga A2000_R6 Rev.1.38 (05.09.2012) AmigaWiki PDF
Some call it the "funky bridge" as explained in Amiga 2000 Rev 6 to Rev 6.2 (or 6.3) hardware changes.
It appears to be
Rev. 6.2: "Solder series connection of 68 Ohm and 270 pF to the very right of the 4 vias below CN303, other end of the circuit to ground. Eliminates power on Guru".
–– as documented here: AmigaWiki A2000 Mainboard Upgrade
answered 8 hours ago
LangLangCLangLangC
8571212
If somebody can confirm that "Reihenschaltung aus 68 Ohm und 270 pF an die ganz rechte der 4 Durchkontaktierungen unterhalb CN303 löten, anderes Ende der Schaltung an Masse. Beseitigt Einschalt Guru" found here? makes sense
– LangLangC
8 hours ago
1
Yeah, that's exactly what is on the photo.
– Janka
6 hours ago
add a comment |
It is not an aftermarket mod. As evidenced from numerous pictures on the net.
Like:
A2000 Revision 6.3 Motherboard - on Big Book of Amiga Hardware – Amiga Models & Clones / Commodore: A2000
As explained there:
At the time, the Rev 4.x was in production, and the new board was desired for new production, as the price crossover from the 256K x 1 to the 256K x 4 memories had been reached. However, the Rev 5 board was completed ahead of the need for it. So the PCB guys did some additional cleanup work on the design, and I think the FCC people got involved, too. Regardless, the resulting Rev 6 motherboards were plagued with problems (in fairness, some were due to the switchover to a 68000 with faster signals, that was also noisier). - Dave Haynie
It's just a late time fix to get it shipping.
–– From: Amiga A2000_R6 Rev.1.38 (05.09.2012) AmigaWiki PDF
Some call it the "funky bridge" as explained in Amiga 2000 Rev 6 to Rev 6.2 (or 6.3) hardware changes.
It appears to be
Rev. 6.2: "Solder series connection of 68 Ohm and 270 pF to the very right of the 4 vias below CN303, other end of the circuit to ground. Eliminates power on Guru".
–– as documented here: AmigaWiki A2000 Mainboard Upgrade
answered 8 hours ago
LangLangCLangLangC
8571212
It is not an aftermarket mod. As evidenced from numerous pictures on the net.
Like:
A2000 Revision 6.3 Motherboard - on Big Book of Amiga Hardware – Amiga Models & Clones / Commodore: A2000
As explained there:
At the time, the Rev 4.x was in production, and the new board was desired for new production, as the price crossover from the 256K x 1 to the 256K x 4 memories had been reached. However, the Rev 5 board was completed ahead of the need for it. So the PCB guys did some additional cleanup work on the design, and I think the FCC people got involved, too. Regardless, the resulting Rev 6 motherboards were plagued with problems (in fairness, some were due to the switchover to a 68000 with faster signals, that was also noisier). - Dave Haynie
It's just a late time fix to get it shipping.
–– From: Amiga A2000_R6 Rev.1.38 (05.09.2012) AmigaWiki PDF
Some call it the "funky bridge" as explained in Amiga 2000 Rev 6 to Rev 6.2 (or 6.3) hardware changes.
It appears to be
Rev. 6.2: "Solder series connection of 68 Ohm and 270 pF to the very right of the 4 vias below CN303, other end of the circuit to ground. Eliminates power on Guru".
–– as documented here: AmigaWiki A2000 Mainboard Upgrade
answered 8 hours ago
LangLangCLangLangC
8571212
edited 6 hours ago
answered 8 hours ago
LangLangCLangLangC
8571212
answered 8 hours ago
LangLangCLangLangC
8571212
answered 8 hours ago
LangLangCLangLangC
8571212
8571212
If somebody can confirm that "Reihenschaltung aus 68 Ohm und 270 pF an die ganz rechte der 4 Durchkontaktierungen unterhalb CN303 löten, anderes Ende der Schaltung an Masse. Beseitigt Einschalt Guru" found here? makes sense
– LangLangC
8 hours ago
1
Yeah, that's exactly what is on the photo.
– Janka
6 hours ago
add a comment |
If somebody can confirm that "Reihenschaltung aus 68 Ohm und 270 pF an die ganz rechte der 4 Durchkontaktierungen unterhalb CN303 löten, anderes Ende der Schaltung an Masse. Beseitigt Einschalt Guru" found here? makes sense
– LangLangC
8 hours ago
1
Yeah, that's exactly what is on the photo.
– Janka
6 hours ago
If somebody can confirm that "Reihenschaltung aus 68 Ohm und 270 pF an die ganz rechte der 4 Durchkontaktierungen unterhalb CN303 löten, anderes Ende der Schaltung an Masse. Beseitigt Einschalt Guru" found here? makes sense
– LangLangC
8 hours ago
If somebody can confirm that "Reihenschaltung aus 68 Ohm und 270 pF an die ganz rechte der 4 Durchkontaktierungen unterhalb CN303 löten, anderes Ende der Schaltung an Masse. Beseitigt Einschalt Guru" found here? makes sense
– LangLangC
8 hours ago
1
1
Yeah, that's exactly what is on the photo.
– Janka
6 hours ago
Yeah, that's exactly what is on the photo.
– Janka
6 hours ago
add a comment |
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