Dead Head

[SpiralDragon]

Hi… I got a major problem… this first happened with my G450 which I dumped for a G550 because of the problem. The problem is that my TV out head has suddenly stopped out putting to the attached device… when I tried adding a monitor to it (duel monitor instead of monitor and TV) the new monitor seemed to be missing the green channel? Another problem is that every time I try to plug the RCA in to the TV or in to the G550 head adapter I get electric shock. Please tell me that there is something I could do to fix this problem since sending it for replacement or repair is somewhat out of the question because it will coast me almost as much as the card itself is worth and it would be too time consuming since I relay heavily on the Dual head features for my work.

Intel Pentium III 933MHZ 256KB L2 Cache
Intel 815E MBD w/Sound and VGA (BIOS up to date)
512MB PC133 SDRAM (2x256MB)
Full Tower Case w/300w PSU
Floppy
Onboard IDE
PM: Seagate 40GB HDD
Partition 1: 30GB WinXP (with all the latest updates)
Partition 2: 10GB Win2K (with SP 2 and all the latest updates)
PS: Maxtor 60GB 7200RPM HDD
SM: WesternDigital 13GB HDD
SS: Pioneer 16x DVD (DVD-116)
AGP: Matrox G550
Driver: 5.82.018
BIOS: 1.4 b 14
Setting: 1152x864@75Hz 32bit
PCI1: SoundBlaster Audigy Platinum
PCI2: Adaptec AHA2940 U2W (BIOS up to date)
ID6: Teac 6x CD-R
PCI3: Promise Tech. FastTrack ATA100 RAID
SET 1
PM: WesternDigital 40GB 7200RPM HDD
PS: WesternDigital 40GB 7200RPM HDD
SM: Maxtor 40GB 7200RPM HDD
SET2
SS: Seagate 40GB HDD
PCI4: LAN Card 10/100Mb
PCI5: Free
17’ Samsung SyncMaster 753DF
USB: Nomad Jukebox 6GB
Serial 1: PalmIIIx Cradle
PS2 Genius Optical Mouse
PS2 Genius KBD

ALL HDDs using NTFS

[Wombat]

The computer is properly grounded?

[SpiralDragon]

only with self made grounding since no grounding is available with the wall sokets.....
.... cable atached to chasis atached to unused water pipe..

[D0ug]

Id say disconnect the ground wire to the water pipe temporarly and see if you still feel the shock when u plug the RCA in. That water pipe may not be properly grounded, or something else that is attached to that water pipe for grounding is faulty, and is putting a live AC voltage onto that pipe. However if you have already felt enough voltage to give you a shock, and the green output isnt working then youve probably already damaged the card.

[Wombat]

Yeah, I had a hunch you weren't grounded right. Can't go much farther with this until that's fixed. Also, I'd rather ground the 3rd pin on the power plug than just trying to use the chassis.

[SpiralDragon]

Originally posted by D0ug
Id say disconnect the ground wire to the water pipe temporarly and see if you still feel the shock when u plug the RCA in. That water pipe may not be properly grounded, or something else that is attached to that water pipe for grounding is faulty, and is putting a live AC voltage onto that pipe. However if you have already felt enough voltage to give you a shock, and the green output isnt working then youve probably already damaged the card.

still get shock....... i made sure the pipe has nothing elses atached....

[SpiralDragon]

Originally posted by Wombat
Yeah, I had a hunch you weren't grounded right. Can't go much farther with this until that's fixed. Also, I'd rather ground the 3rd pin on the power plug than just trying to use the chassis.

how would you sugest i go about doing that?

[Wombat]

There's little dongles that you can get at almost any hardware store. You don't say where you're from, but I'd assume they are as common in Europe as they are here in the US. It's a little rubber slug that has a three-prong socket for you to plug into, and on the other side is has a 2-prong plug, and a ground wire.

[D0ug]

Maybe there is something wrong with your TV. have you tried it with another TV set?

Originally posted by SpiralDragon




still get shock....... i made sure the pipe has nothing elses atached....

[SpiralDragon]

yeh i have tried it with a nother TV and a nother monitor aswell same problem..... but i think it IS a ground problem ... as for the cable i think i have figured out how it should work thanx Wombat i think i can manage to make one my self i doubt there are any here ...... there arnt even any matrox boards selling here..... i come form a country called "this place sux"

[D0ug]

I mean do you still get the electrical shock using other TVs? If your TV is putting a high voltage on that composite cable, then your card is probably already damaged. No number of diffrent TVs or monitors will give u a diffrent result if the card is already damaged.

[SpiralDragon]

I see your point..... yes even with a difrent tv i still get shoked

[SpiralDragon]

You would notice its presence, if your picture is getting into a darker/flicker and normal loop periodically."

i did notice this on my TV befor the signal whent out

[Evildead666]

I concur with the power cable needing to be grounded.

Which country u from? (2 pin power is common here, and without ony type of fuse either...nice people.)

[figliar]

i have similar problem, my svhs outut died suddnely from day to day, picture on tv is scrambled as wihout synchro and it has only green and red color. Composite output is working fine. I checked the cable and the tv with friends notebook with svhs out and everyhing is working fine. I did not tried second monitor but i'll try this.

did dyou tried to unplug antena from your tv to avoid the shock ? there can be voltage difference between antena gnd and computer gnd.

did someone else met similar problems ?
thanx
Figliar