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Onkyo T-9

aileenamegan

aileenamegan

Super Member
Tried to service an Onkyo T-9. No indicator lamp and the pointer lamp didn't function. No stereo signal, weak FM. Separated switch for sensivity in the back.
Got all problems solved except for the "tuned" lamp. Seems, there is not enough power - if I measure right there is only 1,02 V instead of 6V (lamp required is 6V30mA).
As I'm no tech, I can't see where the power should come from. Somebody out there being able to guide me to?
I have a schematic but I have no idea to include it here.
Its also to find here:

http://www.hifiengine.com/library/onkyo/t-9.shtml
 
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Just to check what you have done:

Have you already replaced all the lamps including the Tuned indicator lamp?
Antenna attached?

When I got my T-9, all the lamps were out. I replaced all of them.
Pointer, meters, Locked, Tuned, and Stereo.

The Sensor switch in back controls the sensitivity of the Tuned lamp.
If the Tuned lamp has been replaced, have you tried Low, Normal, High? I would start with Low first.

Here is a thread link discussing a problem with the Tuned lamp and stereo indicator.
http://www.audiokarma.org/forums/showthread.php?p=2240623
The person wasn't able to get the Tuned indicator to work normally and had to do a workaround. Hopefully you won't need to do what that person did.
 
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I checked all the lamps. Only pointer and tuned lamp have been burnt through. So I took the right bulbs from my stock. But with a value of 6,3V40mA nothing happened - only a very weak gleam. Then I took 6,3V80mA - the same result. Ok, I took 4,5V50mA. Better, but still a gleam. Measured the pin for the bulb. Only 1,02V.
As I understood the indication "tuned" is independent from the position of the switch in the back. As long as a station is captured it has to be enlightened.
That's what my other tuners do.
 
I can't address your bulb issues. I can't remember what replacement bulbs I used, but I believe I just used some 6.3V/60 mA from our local Radio Shack. But don't quote me on that. Whatever I used worked and was quite bright.

I can't speak for your other tuners.

But I was specifically talking about the Tuned lamp and not the Locked indicator.

The Sensor switch in the back is to control the sensitivity of the Tuner knob to your touch. At some settings, you don't even have to touch it, just waving your hand or walking near it could affect it.

If your tuner is fully operational, when you physically touch the Tuner knob, the Tuned indicator goes out and allows you to fine tune the station. When you release, it should come back on.

The settings for the Sensor (Low, Normal, High) can affect how sensitive the Tuned indicator reacts.

I have mine set at Low.

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I solved the problem by using a lower voltage bulb. Sensivity is fine. As already described in the SM. The bulb doesn't shine as bride as originally, but I put some aluminum film into the bulb housing - it does reinforce the light. There is only a slight difference to the bulbs beside left and right.
 
Like you, I just used what was locally available.

I can't remember if I used aluminum foil on the pointer too but I probably did trying to get more light focused on the dial. Pointer and meters are dim but I think I used different bulbs than I did for the indicators.

Onkyo T-9 with room lights on:
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Onkyo T-9 with room lights off: Indicator lights are so bright they created hotspots on the photo only. The reflection on the ledge below represents a truer color.
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I will make some pics from mine this weekend.
My pointer light is quite bright - although using the value as described in the manual. But this is not unusual with new lamps. Even having the same values they could provide different luminosity.
 
aileenamegan said:
Its not easy to make front pictures from this tuner...
Click to expand...

I have grabbed a bunch of your Luxman pictures and with the quality of those and you saying the T-9 is hard to photograph, I believe you.

Glad you got it indicating properly. It is a nice tuner, the replacement of the T-4055 that was highly rated back in the day.
 
Its the huge glas in front - and the angle. Lot of reflexions. I'm thinking of a box where I can put in all these units and being able to make pics without reflexions und using indirect light. A project for the winter I guess.
But due to the fact, that I'm no photograph I have to collect first informations about :D
Here is another one without illumination.

 
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