[czipster]

My JVC AV-65WP74 after powered on for 10 minutes starts displaying red/green/white vertical solid and broken lines. The lines are fixed and sometimes after 30 minutes the picture is back to normal.

Before the lines appear, any text on the screen start to look 3d.

I have had no luck online finding an issue like this.

Images attached.

Thanks!

 

[czipster]

The television has never been moved in 3 years, more that 12 inches to attach cables. JVCA emailed and suggested disconnecting all sources and reconnecting the cable tv connection, then running the automated convergence test, and the lines are still an issue. Could it be the IC's or STK chips?

 

[czipster]

**** UPDATE ****
I found a local technician, who addressed what they thought was a convergence and/or power supply issue, but they claim the real problem was what they called a micro or computer board. $395 later, they replaced the convergence chips, power supply and the micro board, the tv is working normally with no vertical red & green lines now, BUT.....

I warned the technician NOT to power on the TV with back off or the DVI would be disabled, and once the tv was returned - NO DVI !!

I have found a few posts stating the DVI can be re-enabled through the Service Menu, is this true and if so does anyone have the steps to reset the DVI?

I found a post where 2 pins could be shorted with a pc type jumper and powered on and off then the jumpers removed to reset the dvi - any ideas?

 

[czipster]

The technician is supposed to come back tonight to look at the issue, I have 10 pages of posts of what can happen if the back is removed while powered on, do you think covering the hole with tape, replacing the back and powering up the tv will reset the dvi?

 

[czipster]

Ok - I guess the company that performed and didnt read the CAUTIONS in the service manual will have to send the EEPROM to JVC to be reprogrammed or if they have a good EEPROM from another same model, would a dvi module swap work ?

 

[czipster]

I found this same fix yesterday, I'm a MCSE so I had a jumper in my desk to an old IDE hard drive, I tried it last night and the DVI is now functional, thank you to everyone who contributed to the resoltuion of my issue!