Amiga to 9pin VGA (old monitor)

Anemos · 18 July 2009, 09:58

Hello guys.
I found yesterday (near to transcans) one very well and clear old type monitor with 9pin input plug.
The type is EIZO flexscan 8060S!
After to test i make cable 23pin> 9pin VGA follow this diagram..

Red Video - 1
Green Video -2
Blue Video -3
Horizontal Sync -4
Vertical Sync -5
Red GND -6
Green GND -7
Blue GND -8
Sync GND -9

My A1200 working perfectly the screen looks amazing! ,BUT, must be power start first the Amiga (with out plugin 9pin connector) and after must be put the plug in the monitor and turn ON it.
If the 9pin plug is rdy connected on the monitor (close or on) the Amiga starting with flashing led,s and not boot! (is like looks searching on synchronize the signal..dunno)
Any ideas to fix this?

Toni Wilen · 18 July 2009, 10:50

You need buffered adapter (at least sync lines should be buffered).

Some load on sync signals -> enable genlock mode. Which does not work very well if there isn't real external sync.. (some monitors work without buffers, some won't)

Anemos · 18 July 2009, 11:12

thanks for the answer,what is this "buffered adapter"
can i use resistor or any on sync line?
i have try one diode,but same result..

Toni Wilen · 18 July 2009, 11:49

I guess any TTL buffer chip or 2 inverters wired together work, or even some transistor + resistor hack

one schematic here: http://www.ntrautanen.fi/computers/h..._vga_cable.htm (and lots more in aminet etc..)

Anemos · 18 July 2009, 12:15

Thanks Toni,

maybe this is right way to fix.. i see that after..
one thing.. why working if i put the plug after to boot?
something not i mentioned the monitor is also multiscan!

Toni Wilen · 18 July 2009, 12:22

Quote:

Originally Posted by Anemos

Thanks Toni,

maybe this is right way to fix.. i see that after..
one think.. why working if i put the plug after to boot?
something not i mentioned the monitor is also multiscan!

KS does genlock detection (and setting "use external sync" bit in hardware if detected) early in boot process.

Anemos · 18 July 2009, 12:31

And this can be passed only with TTL chip? (74LS04) ect?
thinking something simpler ..

Toni Wilen · 18 July 2009, 17:03

Quote:

Originally Posted by Anemos

And this can be passed only with TTL chip? (74LS04) ect?
thinking something simpler ..

I don't think it can get any simpler

Any TTL chip that can be wired as a "buffer" should work, for example 7404 or some OR or NAND chip, everyone have few of those somewhere

Anemos · 18 July 2009, 17:34

@Toni,thanks for any help.. ill try to found one of this similar chip to test but dunno when..
any way here is some shots of my new old (and zero price) monitor! (if i follow un-plug - plug the 9pin connector after booting..)

Anemos · 19 July 2009, 12:27

ok here is my solution,
now my Amiga booting normal on this monitor

webhead · 19 July 2009, 13:04

nice mod great idea.

Toni Wilen · 19 July 2009, 14:10

Nice, can't get any cheaper and simpler

(probably does not work with all kinds of monitors but who cares)

Anemos · 19 July 2009, 14:18

Quote:

Originally Posted by Toni Wilen

Nice, can't get any cheaper and simpler

(probably does not work with all kinds of monitors but who cares)

yes Toni, because this is also Analog/TTL and multiscan monitor,probably does not work with all 9pin VGA monitors..
one more.. the screen and colors is looks amazing,a little better of 1084S!
maybe is the EIZO quality ..

Anemos · 16 August 2009, 16:42

new solution with capacitor on HS & VS, has better screen and geometry .
The A1200 also booting normal.

rkauer · 17 August 2009, 01:12

@Anemos: Aminet this! NOW!

Before I rob the design and do it myself. No, I'll not credit you, then.

FOL · 18 August 2009, 11:54

Quote:

Originally Posted by rkauer

@Anemos: Aminet this! NOW!

Before I rob the design and do it myself. No, I'll not credit you, then.

lol.

Anemos · 18 August 2009, 15:49

Quote:

Originally Posted by rkauer

@Anemos: Aminet this! NOW!

Before I rob the design and do it myself. No, I'll not credit you, then.

dunno how..

via FTP ? > ftp://main.aminet.net/new
is ok?

rkauer · 18 August 2009, 16:32

Via www you'll find a link on the left called "upload".

Anemos · 18 August 2009, 17:09

Quote:

Originally Posted by rkauer

Via www you'll find a link on the left called "upload".

that say: Web upload form is currently under maintainance. Please use FTP for now...

18 July 2009, 09:58	#1
Anemos 70X7 Join Date: Apr 2008 Location: Ἑλλάς Posts: 1,078	Amiga to 9pin VGA (old monitor) Hello guys. I found yesterday (near to transcans) one very well and clear old type monitor with 9pin input plug. The type is EIZO flexscan 8060S! After to test i make cable 23pin> 9pin VGA follow this diagram.. Red Video - 1 Green Video -2 Blue Video -3 Horizontal Sync -4 Vertical Sync -5 Red GND -6 Green GND -7 Blue GND -8 Sync GND -9 My A1200 working perfectly the screen looks amazing! ,BUT, must be power start first the Amiga (with out plugin 9pin connector) and after must be put the plug in the monitor and turn ON it. If the 9pin plug is rdy connected on the monitor (close or on) the Amiga starting with flashing led,s and not boot! (is like looks searching on synchronize the signal..dunno) Any ideas to fix this?

18 July 2009, 12:15	#5
Anemos 70X7 Join Date: Apr 2008 Location: Ἑλλάς Posts: 1,078	Thanks Toni, maybe this is right way to fix.. i see that after.. one thing.. why working if i put the plug after to boot? something not i mentioned the monitor is also multiscan! Last edited by Anemos; 18 July 2009 at 12:20.

19 July 2009, 12:27	#10
Anemos 70X7 Join Date: Apr 2008 Location: Ἑλλάς Posts: 1,078	ok here is my solution, now my Amiga booting normal on this monitor Last edited by Anemos; 19 July 2009 at 12:43.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Amiga 500+ to VGA monitor	JonB	support.Hardware	13	03 April 2013 17:21
Amiga VGA for Flat Monitor VGA?	Amiga Forever	New to Emulation or Amiga scene	9	02 November 2010 23:08
VGA adapter to connect a VGA/Multiscan monitor to the Amiga RGB port	Tuffy	support.Hardware	4	07 April 2008 09:29
FA: Amiga 4000/040, Multisync Monitor, 2 SCSI Cards, Ethernet, VGA Adapter, PS/2	plbyrd	MarketPlace	0	02 November 2006 07:23
Amiga on VGA monitor	Techx	support.Hardware	21	05 August 2005 17:24

18 July 2009, 10:50	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,506	You need buffered adapter (at least sync lines should be buffered). Some load on sync signals -> enable genlock mode. Which does not work very well if there isn't real external sync.. (some monitors work without buffers, some won't)

18 July 2009, 11:12	#3
Anemos 70X7 Join Date: Apr 2008 Location: Ἑλλάς Posts: 1,078	thanks for the answer,what is this "buffered adapter" can i use resistor or any on sync line? i have try one diode,but same result..

18 July 2009, 11:49	#4
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,506	I guess any TTL buffer chip or 2 inverters wired together work, or even some transistor + resistor hack one schematic here: http://www.ntrautanen.fi/computers/h..._vga_cable.htm (and lots more in aminet etc..)

18 July 2009, 12:31	#7
Anemos 70X7 Join Date: Apr 2008 Location: Ἑλλάς Posts: 1,078	And this can be passed only with TTL chip? (74LS04) ect? thinking something simpler ..

18 July 2009, 17:34	#9
Anemos 70X7 Join Date: Apr 2008 Location: Ἑλλάς Posts: 1,078	@Toni,thanks for any help.. ill try to found one of this similar chip to test but dunno when.. any way here is some shots of my new old (and zero price) monitor! (if i follow un-plug - plug the 9pin connector after booting..)

19 July 2009, 13:04	#11
webhead Banned Join Date: Jan 2007 Location: swindon Posts: 148	nice mod great idea.

19 July 2009, 14:10	#12
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,506	Nice, can't get any cheaper and simpler (probably does not work with all kinds of monitors but who cares)

16 August 2009, 16:42	#14
Anemos 70X7 Join Date: Apr 2008 Location: Ἑλλάς Posts: 1,078	new solution with capacitor on HS & VS, has better screen and geometry . The A1200 also booting normal.

17 August 2009, 01:12	#15
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	@Anemos: Aminet this! NOW! Before I rob the design and do it myself. No, I'll not credit you, then.

18 August 2009, 16:32	#18
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	Via www you'll find a link on the left called "upload".

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)