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Reset procedure for lamp replacement?

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Old 12-09-2011, 12:53 AM   #1
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Default Reset procedure for lamp replacement?

I have a Toshiba 52HM95 manufactured in 2005. I've replaced the lamp four times and it's now due again.

The last two were genaric (strictly for cost savings) and they only lasted 12 months and 10 months respectively.

After what I considered was poor product luck with previous supplier, I ordered from a new supplier. During a conversation with cust. serice/technical rep he'd explained that I should "reset" according to troubleshooting parameters in diagnostic mode of TV. After which I should get 6000-8000 hours out of the lamp. (FYI, the TV sees about 4-6 hrs of use per day on average.)

My question... Is a reset necessary when replacing the lamp??

From a prior discussion I am able to access the following but nowhere do I see a reset option. And I'm skeptical to start pressing random buttons on the remote for fear or messing something up permanently.
With TV turned on:

1. Press "mute" on the remote - 1/2 mute appears on the screen
2. Press "mute" on the remote again - mute appears on the screen
3. Press "mute" on the remote and hold the mute button -
4. Press the "Menu" button on the TV's front panel. "S" will appear in the upper right corner of the screen.
5. Press the "Menu" button a second time and the "S" will disappear. On the left side of the screen you will see "RCUT" followed by two numbers.
You are now in the service mode.
6. Press "9" on the remote and you will access the diagnostics page. In the right hand corner is the lamp time in hours.
7. Press "power" button on remote to exit the menu and power off the TV.
Any advice would be greatly appreciated!!
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Old 12-09-2011, 08:17 PM   #2
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There will be no improvement regarding lamp life with a hour reset, but since you have the service entry procedure you could reset the clock if you wish.

Lamps fail for several reasons.

1. Dirty hands on the actual bulb
2. Power failures that result in zero cool-down fan time.
3. Frequent power cycles.

Fixes
1. Use lint free gloves when installing new bulb
2. Use a battery backup if located in a location prone to power failures
3. Reduce power cycles. I've seen displays with over 6000 hours on one lamp. These tv's are started in the morning and run continuously for 12/16 hours per day. If you are going to be watching tv on and off all day you might consider just leaving it on. Power consumption is an issue but.....

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Old 12-09-2011, 09:02 PM   #3
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Thanks Doug.

How to reset lamp clock once I'm in diagnostic mode?

Also, is there a master reset (besides clock) or simply replace lamp and go?

Would replacing fan with higher RPM/CFM be of any benefit in increasing lamp life??
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Old 12-09-2011, 09:23 PM   #4
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It has been a few years so don't hold me to this... I'm away on a tour now and don't have my records of tosh hm's with me.

Iirc, when you highlight the hour meter with the cursor, you can toggle the reset. If it does not highlight just log the time in your notes.

Good luck and when I get back home in two more weeks, I'll see if I have better data for you.

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