Need help with a Pioneer PDP-607CMX

[raj2986]

Hey everyone i am new to the forum and like allot of others I found my way here seeking help troubleshooting my TV.

So I have a Pioneer PDP-607CMX display that started giving me the red blink of death. 2 red blinks repeating and based on what limited info I could find sounds like my Y board is shot. But before I go spending $100 on a new board i am wondering if there are any tests to make sure its the Y board or if the panel or PSU is at fault. I have done allot of work with Panasonic PDP displays in the past but info is very plentiful but not so much for the pioneer stuff...

Thanks in advance for any replies and assistance with this!

[raj2986]

Re: Need help with a Pioneer PDP-607CMX

As a follow-up to add a little more info

As a test like on the Panasonic PDPs I have worked on in the past I pulled the connectors from the sub boards connected form the y board to the panel itself and the fault still occurred which makes me think the panel itself is still good.

So here is the sequence of events from power on.
This will not occur unless I push the power button. unit will sit in standby until power is pressed.
upon power unit starts up as normal with green light
about 2 seconds later one of the relays clicks and the green light faults to blinking red light. 2 blinks every few seconds.
unit will not power back up until power is physically pulled. (unit sits in fault)
unit never starts, no sounds, no picture, no buzz from the y or x boards.

[ReeceyBurger123]

Re: Need help with a Pioneer PDP-607CMX

Red shutdown is the controller as Tom66 says going "OH SHIT" this locks the Tv out and needs a hard reset to get it to turn on again. Two blinks normally means the Ydrive (Ysus) is failed. Please take the back of the off and upload some images of the boards please.

[raj2986]

Re: Need help with a Pioneer PDP-607CMX

I ran through each board to look for physical damage. I didn't find any bulged caps, damaged ICs or other signs the TV "let the smoke out"

Overview


PSU


X-drive


X-drive side profile


Y-drive


Y-drive side profile


A/V input cards

[ReeceyBurger123]

Re: Need help with a Pioneer PDP-607CMX

Ok disconnect both Y and X drive from the Psu, turn the Tv on and check if you get Vs and Va voltages this is labled on the Psu and the panel sticker says what the voltages should be at. If you do get normal voltage then it collapses (due to sus boards being unplugged) then connect sus boards and see if Vs stays very low and the set instantly shuts off with them pluged in then you have an issue on the sus boards. Let us know what happens and I can then assist you further.

Btw thanks for decent quality images

[raj2986]

Re: Need help with a Pioneer PDP-607CMX

Thank you ReeceyBurger123 for your advice and no problems with the images. I do this kind of work for a living only in the heating and air conditioning industry and blurry images are my biggest headache some days.

After unplugging the X and Y boards i found the VSUS terminals put out about 205v at the VSUS pins on the PSU. The PSU ran longer and sustained voltage for about 4 seconds before shutdown. The board does not appear to have a voltage listed for the VSUS terminals however it was a constant 205v peak. I got 3 blinks on the red led after trying this.

following the initial testing that I plugged in the Y-drive and repeated the test same effect PSU sustained 205v on the VSUS terminals before shutdown and again ran for about 4-5 seconds. I could hear a slight buzz on the Y-drive before shutdown which i didn't hear before.

following after connecting the Y-drive I then connected the X-drive and powered the unit at which point the VSUS termials shot to about 200v and suddenly dropped out and rapidly discharged unlike the first 2 tests. Power was only sustained for about 2-3 seconds before the PSU cutout.

here is the red led error count if this helps
Test 1 - no boards connected - 3 blinks
Test 2 - Y-drive only - 10 blinks
Test 3 - X and Y drives connected - 2 blinks
Test 4 - X drive only - 2 blinks

I am starting to suspect the Xdrive may be bad and not the Ydrive like i initially though.

Also worth mentioning there is a red LED on the PSU itself and when the unit would shut off in the 2-3 second time frame the LED would light up and stay lit until pulling power. When the Xdrive was not connected and the PSU ran longer the LED would stay off when shutting down.