Amiga 2000 video problem

[RiP]

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

[RiP]

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

[RiP]

I believe they're both pal. My A2000 is pal.
How can I check Amiga 500 pal/ntsc version?

[RiP]

SysInfo reports it's PAL ECS, so what's the problem?

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

[RiP]

What fuse? and which 12v line?

[RiP]

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:

[RiP]

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.

[RiP]

Well, I measured the voltage of F5 fuse and it was 0V, so what's next?

[RiP]

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

[RiP]

The fuse for that device is good. the 12V is being interrupted else where.

Possible to measure 12/5V on the video port?

[RiP]

I measured 12V from pins 21&22 and it was ~16V
Then I measured 5V from pins 21&23 and it was 0V :confused:

[RiP]

If the MB is not getting 5V it won't run. Start from the power supply and move thru it's path down the circuit. probably a broken solder/trace or wire somewhere.

How? :confused:

[RiP]

No schematic? I can only see +5V_USER (C215), not more things =/

[RiP]

http://bfy.tw/DjEW

Only found this: http://i.imgur.com/807NXSH.jpg

[RiP]

Bottom Right of the schematic you linked, "User 5V" start there and trace back or forward to find the fault.

5V_User, pin12 of PSU?

Maybe Amiga 2000 doesn't have 5V line in video port:
http://www.amiga.org/forums/showpost.php?p=198523&postcount=8