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Author Topic: Amiga 2000 video problem  (Read 10698 times)

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Offline magnetic

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Re: Amiga 2000 video problem
« Reply #29 on: December 17, 2016, 10:49:47 PM »
Quote from: RiP;817828
I have the same problem :(
Just bought an Amiga 500 with A520 which works fine, colored output.
But when I connect it to my Amiga 2000 rev6, it gives me grayscale output :(


Wrong agnus version...
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Offline Oldsmobile_Mike

Re: Amiga 2000 video problem
« Reply #30 on: December 18, 2016, 12:02:24 AM »
+1 for PAL/NTSC issue.
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Amiga 500: 2MB Chip|16MB Fast|30MHz 68030+68882|3.9|Indivision ECS|GVP A500HD+|Mechware card reader + 8GB CF|Cocolino|SCSI DVD-RAM
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Offline magnetic

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Re: Amiga 2000 video problem
« Reply #31 on: December 18, 2016, 12:11:04 AM »
if you have an ntsc a2000 get an ntsc a520 dont hack the motherboard..
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bPlan Pegasos2 G4@1ghz
Quad Boot:Reg. MorphOS | OS4.1 U4 |Ubuntu GNU-Linux | MacOS X

Amiga 2000 Rom Switcher w/ 3.1 + 1.3 | HardFrame SCSI | CBM Ram board| A Squared LIVE! 2000 | Vlab Motion | Firecracker 24 gfx

Commodore CDTV: 68010 | ECS | 9mb Ram | SCSI -TV | 3.9 Rom | Developer EPROMs
 

Offline RiP

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Re: Amiga 2000 video problem
« Reply #32 on: December 18, 2016, 05:29:26 AM »
I believe they're both pal. My A2000 is pal.
How can I check Amiga 500 pal/ntsc version?
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Offline spaceman88

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Re: Amiga 2000 video problem
« Reply #33 on: December 18, 2016, 12:54:36 PM »
Quote from: RiP;817848
I believe they're both pal. My A2000 is pal.
How can I check Amiga 500 pal/ntsc version?


What does Sysinfo say?
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Offline RiP

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Re: Amiga 2000 video problem
« Reply #34 on: December 18, 2016, 06:34:07 PM »
SysInfo reports it's PAL ECS, so what's the problem?

EDIT: Anyone heard about it?
http://eab.abime.net/showthread.php?t=37217
« Last Edit: December 18, 2016, 08:09:56 PM by RiP »
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Offline spaceman88

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Re: Amiga 2000 video problem
« Reply #35 on: December 18, 2016, 08:34:35 PM »
Quote from: RiP;817872
SysInfo reports it's PAL ECS, so what's the problem?

EDIT: Anyone heard about it?
http://eab.abime.net/showthread.php?t=37217


Well the fuse fixed his problem. Did you get a chance to check the 12v line on your A2000 yet?
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Offline RiP

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Re: Amiga 2000 video problem
« Reply #36 on: December 18, 2016, 08:57:04 PM »
What fuse? and which 12v line?
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Offline QuikSanz

Re: Amiga 2000 video problem
« Reply #37 on: December 18, 2016, 09:19:32 PM »
Quote from: RiP;817877
What fuse? and which 12v line?


Read post #20 in above linked thread...
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Offline RiP

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Re: Amiga 2000 video problem
« Reply #38 on: December 19, 2016, 06:21:16 AM »
Quote from: QuikSanz;817878
Read post #20 in above linked thread...

"You know the A520 is good cause you have tested it.
To gain confidence regarding the A2000, simply but carefully measure the voltage while the A2000 is running on both sides of F5, should be +12V on the PSU side & 0V on Pin 22 side."

So I should connect positive connector of multimeter to the fuse and negative connector to the RGB's Pin 22, right?
Or positive connector to PSU 12V and negative connector to the fuse/Pin 22?
The fuse was fine since I remember :confused:
« Last Edit: December 19, 2016, 06:31:18 AM by RiP »
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Offline QuikSanz

Re: Amiga 2000 video problem
« Reply #39 on: December 19, 2016, 06:34:05 AM »
Quote from: RiP;817885
"You know the A520 is good cause you have tested it.
To gain confidence regarding the A2000, simply but carefully measure the voltage while the A2000 is running on both sides of F5, should be +12V on the PSU side & 0V on Pin 22 side."

So I should connect positive connector of multimeter to the fuse and negative connector to the RGB's Pin 22, right?
Or positive connector to PSU 12V and negative connector to the fuse/Pin 22?
The fuse was fine since I remember :confused:


Easy way. Set meter for 12VDC and measure across the fuse, A fuse should be a short, 0 Volts. If open "blown" you will see 12VDC.
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Offline RiP

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Re: Amiga 2000 video problem
« Reply #40 on: December 19, 2016, 06:45:24 AM »
Quote from: QuikSanz;817886
Easy way. Set meter for 12VDC and measure across the fuse, A fuse should be a short, 0 Volts. If open "blown" you will see 12VDC.

Thanks, I'll check it but since I remember the fuse was fine, not blown when I did a simple continuity test while it was off.
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Offline QuikSanz

Re: Amiga 2000 video problem
« Reply #41 on: December 19, 2016, 05:50:28 PM »
@Rip,

Continuity check is not reliable in circuit, your meter could just be charging a cap. Must be removed, at least 1 end from the circuit for continuity to be reliable.
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Offline RiP

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Re: Amiga 2000 video problem
« Reply #42 on: December 20, 2016, 09:07:19 AM »
Well, I measured the voltage of F5 fuse and it was 0V, so what's next?
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Offline spaceman88

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Re: Amiga 2000 video problem
« Reply #43 on: December 20, 2016, 03:56:56 PM »
Quote from: RiP;817956
Well, I measured the voltage of F5 fuse and it was 0V, so what's next?


0V across the fuse? Do you have the 12V from a ground reference?
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Offline RiP

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Re: Amiga 2000 video problem
« Reply #44 from previous page: December 29, 2016, 09:29:54 AM »
Quote from: spaceman88;817968
0V across the fuse? Do you have the 12V from a ground reference?


Yes, and how to check 12V from a ground reference? :confused:
I really wanna get color output from my Amiga 2000 with A520 :(
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