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The OFFICIAL Toshiba 56MX195/62MX195/72MX195 OWNER'S THREAD - Page 45

post #1321 of 1334
Hi guys; I've finally come to a roadblock with my TV. Hopefully someone can help or give me some ideas...

I have a 62CM9UA 62 Toshiba DLP rear projection television (Australian model) which has stopped working for a few months now.

The first lamp died at the end of last year after about 8000hrs and replaced with a genuine Toshiba lamp & housing which worked flawlessly for another 4-5months.

This is where we're at now. Without testing anything, I thought it was just another lamp gone; ordered another and tried it out - no dice. After reading up a little about the status LEDs, it looked like it was a (as the manual states) an ABNORMAL OPERATION OF BUS LINE'. Believing that this may be related to the televisions power supply, I found some info about the Toshiba's ballast unit dying. I ordered the part, installed tonight and still no joy.

What I have noticed is that, on normal operation, there are 2 fans starting up with a higher than normal rpm then settling down to a nominal rpm after start-up; during this troubleshooting process, you cannot hear the two fans (or at least the start-up faster rpm) running. The fan cooling the lamp is working, but tomorrow I will check if the ballast cooling fan is operating properly.

Is there anything else you think I should look for?

Many thanks.
post #1322 of 1334
I have most of the parts and boards for a 56MX195 including light engine, digital board, power supply, etc. All of these parts came from two spare TVs that I picked up. I would be willing to trade some or all of it for a ballast for this TV. If interested contact me.
Thanks.
post #1323 of 1334
If anyone has the pdf version of the service manual for the 72MX195, I would be very grateful if you could e-mail it to me.
PM me for my e-mail address if your willing to share it.

TIA

Dean
post #1324 of 1334
Do you still need it? I have it. Let me know.
post #1325 of 1334
Not sure whether it's a 72MX or 72HM but there's a unit for sale on CL about 2 hours away from me for $100. It needs a light engine according to the picture posted with the ad. Does anyone know what part or parts inside the light engine fail, and whether it's easy to refurbish them or is this information above top secret for consumers, and only authorized refurbish shops can perform the repair to the light engine? I figure I can at least acquire a similar line Toshiba TV for just the light engine and replace the faulty one. I've researched light engines for the 72" and have discovered that no one refurbishes them for this model any more.
post #1326 of 1334
Three of the failures I've seen reported most often are:

1. The Color Wheel needs to be replaced.

2. The DWD (sp?) chip failures.

3. The Ballast has failed.

I haven't read of anyone being able to simply replaced the decoder chip so far.
post #1327 of 1334
I could use a copy of service manual if possible.
Thanks ,
Jack
post #1328 of 1334
I'd sure love to have a .pdf of the 62MX195 Service Manual, if you still have it.

I have my 62MX195 partly disassembled, but am having a problem accessing a mounting screw on the lamp housing guide, which in turn is preventing me from unplugging some parts from the circuit board in front of the ballast board.

Many thanks,

Henry
Henry.Parsons@frontier.com
post #1329 of 1334
Not sure if this got through as a reply, rather than just a post. Sorry if its a duplicate ...

I'd sure love to have a .pdf of the 62MX195 Service Manual, if you still have it.

I have my 62MX195 partly disassembled, but am having a problem accessing a mounting screw on the lamp housing guide, which in turn is preventing me from unplugging some parts from the circuit board in front of the ballast board.

Many thanks,

Henry
Henry.Parsons@frontier.com
post #1330 of 1334

Please help!!!  Having picture problems with my Toshiba MX195 DLP........

 

I turned on the tv last night and suddenly I've got this reddish tinted shadowy thing going on.  It appears to the right of the object(s) on screen and it is constant (see photos below).  There is also a very subtle but continuous flicker.  Changing inputs didn't fix it.  I also unhooked and reconnected the input for my cable box, no change.  Has anyone else experienced this issue??  My photos were taken while viewing a channel that we only get in standard definition, so it has the black side bars due to the resolution setting.  But the shadows spill over into that area, which I thought was strange.

 

 

 

post #1331 of 1334
Hey I was wondering. There is a guy next to me wanting to sell a 72mx195 for 150.00

He replaced the bulb and it comes on with picture but there a pronounced sag on the left hand side of the picture. Is that an easy fix ? Is it a geometry setting or something internal with the hardware?

He said the left hand side is sagging like 10" which is way out of alignment. Any thoughts?
Edited by RobertVT - 11/7/13 at 10:19am
post #1332 of 1334
OK it doesn't come on :-)

I have read through these threads and I know it's and older set but can anyone tell me when you plug it in I hear a whine which is low but sounds like a fan but the fan for bulb isn't spinning nor the one near the ballast. Do these come upon power being plugged in? I also found it has the flashing blue LED. I took it apart and cleaned everything and looked for loose or bad connections. The light is blinking steady every 1 second I believe which the manual states the BUS line abnormal operation? What does that even mean?

? Is that truly the issue? The bulb doesn't look blown. I know it's an older TV but I was trying to fix it up and give to someone in the family but based on what I have read, maybe I should run from this thing like crazy?

Any troubleshooting tips or ideas would be most welcome.

Thanks
Edited by RobertVT - 11/9/13 at 12:49am
post #1333 of 1334
I wouldn't bother with it, RobertVT - they were a great set in their time, but I spend many weeks trying to fix a 62" which COULD have turned out to be the ultimate bargain like you are hoping for in your instance.

Just let her go, brother wink.gif
post #1334 of 1334
Yeah thanks and you are probably right. I just thought I would give it a shot. Now I have this huge behemoth sitting in my garage.

eek.gif
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