Wicher 500i

Kejoe · 06 May 2019, 20:23

Hello there.
Om writing to hear for some help with my wicher 500i card.
I recently bought One from the net, it was new.
Im having an problem to make it boot there is only coming a Black screen nothing Else.
Is there somerhing im missing.
My system is an Amiga 500+, there is and 8 MB mounted to the card and a mc68hc000fn20 CPU.
If i take the card out the Amiga boot up fine.
I Also tried it in my Amiga 500

jbilander · 07 May 2019, 12:45

I think the black screen indicates No CPU detected. Check that it is inserted correctly into the PLCC socket of the Wicher card. Also try without the ram module.

http://wiki.classicamiga.com/Amiga_b...r_code_colours

http://eab.abime.net/showthread.php?t=89816

Kejoe · 07 May 2019, 17:53

I have tried with 2 different cpu’s, Also without the ram module, Also without ram and the Gary and CIA jumper, in 2 diferent Amiga 500, thet work fine without the card.
I have tried to push all the Chips firmly in place with no Luck ??

Kejoe · 11 May 2019, 18:06

Stil no luck ?
I Will try order a 3rd CPU and a new PSU.
If that dont help, then i dont know what to do

project23 · 12 May 2019, 16:51

Do you have a simple multimeter?

If so then you can very very carefully check for continuity (with the amiga turned off) between each pin of the wicher and the underneath of the 68k socket on the amiga mainboard. It could be that your socket is a little loose and some of the pins aren't making contact.

Worth checking at least. Are you able to email the designer/builder?

John

duga · 12 May 2019, 22:25

How many different memory modules have you tried? Which speed do they have?

Kejoe · 13 May 2019, 09:26

Thanks, i’ll try that.
I do have a multimeter, though im not so familiar with the use of it.
The disigner/builder is Retroami.pl, i can send some pictures of it.

I have only tried one memory module,a 8 MB 72 simm 60-70 ns
But i cant Get it to boot with or without it

Kejoe · 13 May 2019, 09:32

Here is some pictures of the card

Kejoe · 13 May 2019, 09:46

I have Also tried to set the jumpers on the board in different positions.

Regards Kenneth

Kejoe · 14 May 2019, 16:27

I have now tried to check the continuity from CPU pins to the CPU socket on the card,
Theres is continuity but i dont know To test it right, 62 pin on motherboard and 68 on cpu socket, so some of Them gods to the same spot.

Kejoe · 04 June 2019, 15:50

YES!!
After i have changed the CPU ( for the 4th times) and mounted a CPU socket under the wicher card.
It now actualy boot up, and work fine.
It runs at 25 MHz with 8 MB ram onboard.
I will try some different configuration when the times allow it.

CasVegas · 27 June 2019, 11:40

I'm having a similar issue with my Wicher card. What CPU did worked in the end, and where did you get it from?

What do you mean you mounted a CPU socket under the Wicher card?

Kejoe · 30 June 2019, 13:26

I bought i CPU riser, to get the card up (i dont touch the Chips underneath)
I have mounted a mc68hc000fn20 CPU
The only issue now is to tweak it to be stable, i have to find a brunch of RAM to try to find one that Will work with the card.
I bough the cpu riser and cpu from eBay

CasVegas · 16 July 2019, 20:57

Quote:

Originally Posted by Kejoe

I bought i CPU riser, to get the card up (i dont touch the Chips underneath)
I have mounted a mc68hc000fn20 CPU
The only issue now is to tweak it to be stable, i have to find a brunch of RAM to try to find one that Will work with the card.
I bough the cpu riser and cpu from eBay

What do you mean, tweak it to be stable?

I'm finding that I spend more time turning it on and off trying to get it to finally boot off CF. When it does, it seems to run fine. Then I reset and i just get a blanks screen..... so turn it on and off again for 5 mins, until it finally restarts.

Kejoe · 19 July 2019, 21:56

Quote:

Originally Posted by CasVegas

What do you mean, tweak it to be stable?

I'm finding that I spend more time turning it on and off trying to get it to finally boot off CF. When it does, it seems to run fine. Then I reset and i just get a blanks screen..... so turn it on and off again for 5 mins, until it finally restarts.

Im having problems with loading games and change the cpu speed.
I wont load games only freezes and when changing the cpu speed it sometimes crash and restart.
I have now tried 4 blocks of ram, both 8 and 16 MB.
The one in now is 8 MB and boot up but frezess when trying to load whdload games.
I have now ordered some more ram Also some 4 MB

CasVegas · 21 July 2019, 00:31

What are you doing about it? Have you contacted the seller or Retro 7 Bit, or just giving up?

06 May 2019, 20:23	#1
Kejoe Registered User Join Date: May 2019 Location: Rødby/Denmark Posts: 17	Wicher 500i Hello there. Om writing to hear for some help with my wicher 500i card. I recently bought One from the net, it was new. Im having an problem to make it boot there is only coming a Black screen nothing Else. Is there somerhing im missing. My system is an Amiga 500+, there is and 8 MB mounted to the card and a mc68hc000fn20 CPU. If i take the card out the Amiga boot up fine. I Also tried it in my Amiga 500

13 May 2019, 09:32	#8
Kejoe Registered User Join Date: May 2019 Location: Rødby/Denmark Posts: 17	Here is some pictures of the card Attached Thumbnails

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07 May 2019, 12:45	#2
jbilander Registered User Join Date: Jun 2018 Location: Stockholm Age: 48 Posts: 264	I think the black screen indicates No CPU detected. Check that it is inserted correctly into the PLCC socket of the Wicher card. Also try without the ram module. http://wiki.classicamiga.com/Amiga_b...r_code_colours http://eab.abime.net/showthread.php?t=89816

07 May 2019, 17:53	#3
Kejoe Registered User Join Date: May 2019 Location: Rødby/Denmark Posts: 17	I have tried with 2 different cpu’s, Also without the ram module, Also without ram and the Gary and CIA jumper, in 2 diferent Amiga 500, thet work fine without the card. I have tried to push all the Chips firmly in place with no Luck ??

11 May 2019, 18:06	#4
Kejoe Registered User Join Date: May 2019 Location: Rødby/Denmark Posts: 17	Stil no luck ? I Will try order a 3rd CPU and a new PSU. If that dont help, then i dont know what to do

12 May 2019, 16:51	#5
project23 Used Register Join Date: Jul 2018 Location: Liverpool Age: 41 Posts: 437	Do you have a simple multimeter? If so then you can very very carefully check for continuity (with the amiga turned off) between each pin of the wicher and the underneath of the 68k socket on the amiga mainboard. It could be that your socket is a little loose and some of the pins aren't making contact. Worth checking at least. Are you able to email the designer/builder? John

12 May 2019, 22:25	#6
duga Registered User Join Date: Nov 2010 Location: Sweden Posts: 528	How many different memory modules have you tried? Which speed do they have?

13 May 2019, 09:26	#7
Kejoe Registered User Join Date: May 2019 Location: Rødby/Denmark Posts: 17	Thanks, i’ll try that. I do have a multimeter, though im not so familiar with the use of it. The disigner/builder is Retroami.pl, i can send some pictures of it. I have only tried one memory module,a 8 MB 72 simm 60-70 ns But i cant Get it to boot with or without it

13 May 2019, 09:46	#9
Kejoe Registered User Join Date: May 2019 Location: Rødby/Denmark Posts: 17	I have Also tried to set the jumpers on the board in different positions. Regards Kenneth

14 May 2019, 16:27	#10
Kejoe Registered User Join Date: May 2019 Location: Rødby/Denmark Posts: 17	I have now tried to check the continuity from CPU pins to the CPU socket on the card, Theres is continuity but i dont know To test it right, 62 pin on motherboard and 68 on cpu socket, so some of Them gods to the same spot.

04 June 2019, 15:50	#11
Kejoe Registered User Join Date: May 2019 Location: Rødby/Denmark Posts: 17	YES!! After i have changed the CPU ( for the 4th times) and mounted a CPU socket under the wicher card. It now actualy boot up, and work fine. It runs at 25 MHz with 8 MB ram onboard. I will try some different configuration when the times allow it.

27 June 2019, 11:40	#12
CasVegas Registered User Join Date: Jun 2019 Location: Leeds Posts: 46	I'm having a similar issue with my Wicher card. What CPU did worked in the end, and where did you get it from? What do you mean you mounted a CPU socket under the Wicher card?

30 June 2019, 13:26	#13
Kejoe Registered User Join Date: May 2019 Location: Rødby/Denmark Posts: 17	I bought i CPU riser, to get the card up (i dont touch the Chips underneath) I have mounted a mc68hc000fn20 CPU The only issue now is to tweak it to be stable, i have to find a brunch of RAM to try to find one that Will work with the card. I bough the cpu riser and cpu from eBay

21 July 2019, 00:31	#16
CasVegas Registered User Join Date: Jun 2019 Location: Leeds Posts: 46	What are you doing about it? Have you contacted the seller or Retro 7 Bit, or just giving up?

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