Pioneer Plasma PDP-6020FD 8 blue blinks one orange blink

[linksys1127]

One of my family members has a pioneer 60” plasma model PDP-6020FD that has shutdown with 8 blue blinks. I read on this forum about using the factory remote and pressing the display button to get the subcategory of the problem that caused it to shutdown. Had them use the remote and also had one orange blink along with the 8 blue flashes. Hopefully will have a chance this weekend to go over there and check some voltages. I read about a voltage regulator that could be causing the shutdown. One of the first checks I'm going to make when I get over there will be checking the input and output on that regulator. I don't have the service manual to interpret the flashes so if anyone has any information on this issue I would greatly appreciate it. Thank you

[Andrew F. Ali]

Re: Pioneer Plasma PDP-6020FD 8 blue blinks one orange blink

Don't forget to post clear focused pics of top and bottom views of the boards, how they are interconnected, etc.

[linksys1127]

Re: Pioneer Plasma PDP-6020FD 8 blue blinks one orange blink

Ok will do. Thanks

[R_J]

Re: Pioneer Plasma PDP-6020FD 8 blue blinks one orange blink

The manual says:
Blue 8 Orange 1 = Failure in IIC communication with the main microcomputer [Tuner 1] IIC communication line between Tuner and MAIN. Possible Defective Part U5301,IC7003. Check the communication lines (SCL_TU/SDA_TU or SCL_AV/SDA_AV).

The manual is here:

[linksys1127]

Re: Pioneer Plasma PDP-6020FD 8 blue blinks one orange blink

Downloaded manual. Thank you for that. I’ll look for the culprit when I’m able to make it over there and take a look with my meter. I’ll update when I do. Thank you for your help.

[linksys1127]

Re: Pioneer Plasma PDP-6020FD 8 blue blinks one orange blink

Also I’ll take some clear pics

[tom66]

Re: Pioneer Plasma PDP-6020FD 8 blue blinks one orange blink

There's an NJM2846 1.8V regulator on the AV/audio board that causes this fault. A burst of freeze spray will usually briefly bring the set to life. The part needs to be replaced using a hot air gun, don't try and use a soldering iron as you'll damage other boards on the board.

[linksys1127]

Re: Pioneer Plasma PDP-6020FD 8 blue blinks one orange blink

Ok. Thank you for the information. I saw where you had posted about this same issue. That was my first component to check. Hate to order the chip before I have an opportunity to test but think I’ll pull the trigger on it and order from mouser. Saw this was the issue with many of them. Thank you Tom66

[linksys1127]

Re: Pioneer Plasma PDP-6020FD 8 blue blinks one orange blink

Got a call this morning. It seems to be working fine now but I’m sure that will change shortly. Got the voltage regulator on the way for the future. Thanks everyone. I’ll update this when it finally fails. Kevin