Amigakit's ROM switcher... A600

ipod_sock · 03 June 2010, 21:38

Aghhhhhhhhhhh!!! please PLEASE help guys, having numerous probs getting this to work, I've got the original ks2.04 (37.350) on the bottom and ks1.3 on the top, after realising a few of the pins were bent on the rom switcher connection and straightening them I plugged it in again and although I get a green light now... nothing, black blank screen, do I have the chips the wrong way around or is the 'jumper' in the wrong place?!?! Uploading pics.. now!

By the way, the ks1.3 chip works just fine on it's own in the A600 as does the ks2.04

Here we go...
http://img.photobucket.com/albums/v7...s355/chips.jpg
http://img.photobucket.com/albums/v7...connection.jpg
http://img.photobucket.com/albums/v7...greenlight.jpg
http://img.photobucket.com/albums/v7...355/jumper.jpg

FOL · 03 June 2010, 22:28

Quote:

Originally Posted by ipod_sock

Aghhhhhhhhhhh!!! please PLEASE help guys, having numerous probs getting this to work, I've got the original ks2.04 (37.350) on the bottom and ks1.3 on the top, after realising a few of the pins were bent on the rom switcher connection and straightening them I plugged it in again and although I get a green light now... nothing, black blank screen, do I have the chips the wrong way around or is the 'jumper' in the wrong place?!?! Uploading pics.. now!

By the way, the ks1.3 chip works just fine on it's own in the A600 as does the ks2.04

Here we go...
http://img.photobucket.com/albums/v7...s355/chips.jpg
http://img.photobucket.com/albums/v7...connection.jpg
http://img.photobucket.com/albums/v7...greenlight.jpg
http://img.photobucket.com/albums/v7...355/jumper.jpg

Looks right to me.

Try holding down Ctrl-A-A for 5 secs until like changes colour, does it work then?

If not, try swapping the chips, put bottom one at top and top at bottom.

Top = Primary rom.

ipod_sock · 03 June 2010, 23:16

Thanks for the swift response FOL, i'll give that a whirl when I get in (10mins)

ipod_sock · 04 June 2010, 00:14

Okay, get's weirder and weirder... I connected the top half and tried the three key routine, after 5sec, get a red light, try again, get a green light... still nothing, black and blank, won't run disks

amigakit.com · 04 June 2010, 00:29

OK, so the ROM switcher is working by your tests- and of course every ROM switcher is tested before despatch to customers.

It is a connection problem. One or more of the ROM plug pins may not be making a good connection with the ROM socket on the motherboard.

ipod_sock · 04 June 2010, 00:52

So, the red means one of the ROMS is being used and the green means another is being used? I'll try and resettle the connection, starting from pins 3/4 right as per pic and the jumper as per pic and as it came yea?

amigakit.com · 04 June 2010, 00:58

Also check if the ribbon cable is not snagged/twisted.

The red Led illuminates when one Kickstart is being used and green Led illuminates when the other ROM is activated upon holding down CTRL-AMIGA-AMIGA.

BTW: here is the technical document on our website: http://www.amigakit.co.uk/support/rom-switcher.php

ipod_sock · 04 June 2010, 01:59

nope, cable is fine... just as when delivered, one scary development thing though, the 37.350 chip get's absolutely BOILING hot, to the point where when I touched it before to try and get it out it gave me a nasty burn blister

what's THAT all bout?!?!

Hewitson · 04 June 2010, 02:30

It's shorted.

mfilos · 04 June 2010, 07:08

As I had issues with Indivision ECS and some socket risers due to fiting Indy ECS+A603 with Apollo 630...
Matthew is right. Most probable issue is that the kickstart rom connector isn't making a good connection in all pins. Best thing u can do is run a continuity test with a Multimeters in every Pin between Amiga Kick socket and Switchers socket. That way you'll know for sure if it's a matter of kick not sitting right or cable fault.

ipod_sock · 04 June 2010, 09:06

Quote:

Originally Posted by Hewitson

It's shorted.

When you say that, do you mean dead? and for good? hope not, those 37.350's are a bitch to rebuy!

maybe I need a replacement switcher?

Paul_s · 04 June 2010, 09:29

Quote:

Originally Posted by ipod_sock

When you say that, do you mean dead? and for good? hope not, those 37.350's are a bitch to rebuy!

maybe I need a replacement switcher?

Yeah, by the sounds of it the ROM is goosed

Hewitson · 04 June 2010, 10:12

It's not necessarily dead, I'd expect it to have some sort of thermal shutdown feature. However it is short circuited either internally or (much more likely) externally. Make sure no pins are touching eachother.

The only reason the chip will be as hot as it is, is if its shorted. Which also explains why it isn't working.

FOL · 04 June 2010, 10:56

I test every rom switcher before it leaves.

Try the chips in the a600 on their own. If both are fine, then insert one in the top slot of rom switcher. See if it boots, if so add the second rom.

alexh · 06 June 2010, 10:31

Quote:

Originally Posted by Hewitson

I'd expect it to have some sort of thermal shutdown feature.

Nope.

FOL · 06 June 2010, 11:40

Quote:

Originally Posted by alexh

Nope.

Aye, it will just cook and maybe fracture,

.

03 June 2010, 21:38	#1
ipod_sock 1st love = Psygnosis Join Date: Jan 2010 Location: Liverpool (work Manchester) Posts: 105	Amigakit's ROM switcher... A600 Aghhhhhhhhhhh!!! please PLEASE help guys, having numerous probs getting this to work, I've got the original ks2.04 (37.350) on the bottom and ks1.3 on the top, after realising a few of the pins were bent on the rom switcher connection and straightening them I plugged it in again and although I get a green light now... nothing, black blank screen, do I have the chips the wrong way around or is the 'jumper' in the wrong place?!?! Uploading pics.. now! By the way, the ks1.3 chip works just fine on it's own in the A600 as does the ks2.04 Here we go... http://img.photobucket.com/albums/v7...s355/chips.jpg http://img.photobucket.com/albums/v7...connection.jpg http://img.photobucket.com/albums/v7...greenlight.jpg http://img.photobucket.com/albums/v7...355/jumper.jpg Last edited by ipod_sock; 03 June 2010 at 21:55. Reason: uploaded pics!

04 June 2010, 00:14	#4
ipod_sock 1st love = Psygnosis Join Date: Jan 2010 Location: Liverpool (work Manchester) Posts: 105	Okay, get's weirder and weirder... I connected the top half and tried the three key routine, after 5sec, get a red light, try again, get a green light... still nothing, black and blank, won't run disks Last edited by ipod_sock; 04 June 2010 at 00:23.

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03 June 2010, 23:16	#3
ipod_sock 1st love = Psygnosis Join Date: Jan 2010 Location: Liverpool (work Manchester) Posts: 105	Thanks for the swift response FOL, i'll give that a whirl when I get in (10mins)

04 June 2010, 00:29	#5
amigakit.com Registered User Join Date: Aug 2004 Location: www.amigakit.com Posts: 2,015	OK, so the ROM switcher is working by your tests- and of course every ROM switcher is tested before despatch to customers. It is a connection problem. One or more of the ROM plug pins may not be making a good connection with the ROM socket on the motherboard.

04 June 2010, 00:52	#6
ipod_sock 1st love = Psygnosis Join Date: Jan 2010 Location: Liverpool (work Manchester) Posts: 105	So, the red means one of the ROMS is being used and the green means another is being used? I'll try and resettle the connection, starting from pins 3/4 right as per pic and the jumper as per pic and as it came yea?

04 June 2010, 00:58	#7
amigakit.com Registered User Join Date: Aug 2004 Location: www.amigakit.com Posts: 2,015	Also check if the ribbon cable is not snagged/twisted. The red Led illuminates when one Kickstart is being used and green Led illuminates when the other ROM is activated upon holding down CTRL-AMIGA-AMIGA. BTW: here is the technical document on our website: http://www.amigakit.co.uk/support/rom-switcher.php

04 June 2010, 01:59	#8
ipod_sock 1st love = Psygnosis Join Date: Jan 2010 Location: Liverpool (work Manchester) Posts: 105	nope, cable is fine... just as when delivered, one scary development thing though, the 37.350 chip get's absolutely BOILING hot, to the point where when I touched it before to try and get it out it gave me a nasty burn blister what's THAT all bout?!?!

04 June 2010, 02:30	#9
Hewitson Registered User Join Date: Feb 2007 Location: Melbourne, Australia Age: 41 Posts: 3,772	It's shorted.

04 June 2010, 07:08	#10
mfilos Paranoid Amigoid Join Date: Mar 2008 Location: Athens/Greece Age: 45 Posts: 1,978	As I had issues with Indivision ECS and some socket risers due to fiting Indy ECS+A603 with Apollo 630... Matthew is right. Most probable issue is that the kickstart rom connector isn't making a good connection in all pins. Best thing u can do is run a continuity test with a Multimeters in every Pin between Amiga Kick socket and Switchers socket. That way you'll know for sure if it's a matter of kick not sitting right or cable fault.

04 June 2010, 10:12	#13
Hewitson Registered User Join Date: Feb 2007 Location: Melbourne, Australia Age: 41 Posts: 3,772	It's not necessarily dead, I'd expect it to have some sort of thermal shutdown feature. However it is short circuited either internally or (much more likely) externally. Make sure no pins are touching eachother. The only reason the chip will be as hot as it is, is if its shorted. Which also explains why it isn't working.

04 June 2010, 10:56	#14
FOL PSPUAE DEV Join Date: Nov 2006 Location: Wales / UK Age: 45 Posts: 5,999	I test every rom switcher before it leaves. Try the chips in the a600 on their own. If both are fine, then insert one in the top slot of rom switcher. See if it boots, if so add the second rom.

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