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

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.

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.

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

Do you still need it? I have it. Let me know.

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.

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.

I could use a copy of service manual if possible.
Thanks ,
Jack