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Old 4th January 2006, 08:47 AM   #541
pieroh is offline pieroh  Germany
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Default the gap

Quote:
Originally posted by Mick_F
My last answer, of course, refers to the post of Pieroh.......
Sorry

Mick

Hi Mick,
I could not find a defined stop for the clamp.
You can press it down until it sits on the crankcase and will not spin anymore. A new laserunit that I purchased arrived in this condition.

So best would be, if we compare the setting (distance between the crankcase to the ring on bottom side of the clamp) for a working unit.

I will grub for my feeler gauge and measure the gap this evening.

Peter
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Old 4th January 2006, 09:06 AM   #542
Mick_F is offline Mick_F  Germany
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Ok. I will try to measure the distances on my four working units. I dont have a gauge but I will try to find a useful means.....

Mick
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Old 4th January 2006, 10:05 AM   #543
back is offline back  Greece
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Quote:
Originally posted by carawu
No, I tested them before modifications. I had to buy some caps to do the mods.

Carsten
can you do the test again after the modifications?
i don`t have a 1002 do to it for myself but i think that the only
difference between the two models is the rca output with it`s opamp.

everything else is the same so they must sound the same.
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Old 5th January 2006, 08:42 AM   #544
pieroh is offline pieroh  Germany
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Quote:
Originally posted by Mick_F
Ok. I will try to measure the distances on my four working units. I dont have a gauge but I will try to find a useful means.....

Mick

Hi,
if you own an at least 15 years old car or motorbike...you might have a a feeler gauge in your tool box, normally used to set up the valve play of the engine.

I used it to measure the distance between clamp and crankcase of the laserunit (working unit!). The gap is 0,8mm.
I changed the distance for a new but skipping laserunit to this value and it worked immediately.

The values for gain, bias and laser intensity where set to values as posted by Mick and Dommi before.

Please try it out and if your values differ, let me know.
Peter
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Old 5th January 2006, 01:32 PM   #545
Mick_F is offline Mick_F  Germany
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Quote:
Originally posted by pieroh



The values for gain, bias and laser intensity where set to values as posted by Mick and Dommi before.

Please try it out and if your values differ, let me know.
Peter

Which values did you acutally use? Dommi and I are using a different set....

Mick
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Old 5th January 2006, 04:18 PM   #546
Dommi is offline Dommi  Germany
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OK,
i measured 3 untouched new laserunits. We have to define how to measure. I think the best way to measure is to push the feeler gauge until it reaches the motor spindle while pushing the clamp down to prevent slackness of the motor. Have attention not to measure over the small screw of the motor.
I've mesured 0,3 mm on all three laserunits.
On my playing laserunit with my values of 1,56 V Bias and 1,76 V Gain i've mesured 0,6 mm. I will try to adjust these to 0,3 mm at the next days and post the result

regards Dommi
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Old 5th January 2006, 09:16 PM   #547
pieroh is offline pieroh  Germany
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Quote:
Originally posted by Dommi
OK,
i measured 3 untouched new laserunits. We have to define how to measure. I think the best way to measure is to push the feeler gauge until it reaches the motor spindle while pushing the clamp down to prevent slackness of the motor. Have attention not to measure over the small screw of the motor.
I've mesured 0,3 mm on all three laserunits.
On my playing laserunit with my values of 1,56 V Bias and 1,76 V Gain i've mesured 0,6 mm. I will try to adjust these to 0,3 mm at the next days and post the result

regards Dommi

Hi Mick and Dommi,

my results:

Laserunit 1 (works very well, the reference)
Bias 1,71 - Gain 1,81 - Laserintensity 12,4mV
Distance clamp to crankcase 0,8mm

Laserunit 2
Bias 1,71 - Gain 1,82 - Laserintensity 11mV (now raised to 12,4mV)
Distance clamp to crankcase 0,8mm

regards
Peter
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Old 6th January 2006, 01:12 PM   #548
Dommi is offline Dommi  Germany
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Hi Pieroh,
did you push the feeler gauge until it reaches the motor spindle ? On your picture it seems that you don't.
If we want to find general values we have to measure at the same way and we have to adjust to the same laserintensity. We find out that 11,4 mV is the correct value. Can you please adjust to this value and check if all CD's works well ?
Thanks

Dommi
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Old 6th January 2006, 06:54 PM   #549
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Default ps 7002

Here is a photo of the output of a 7002. There are no components under the board so it is easier to follow. I will be connecting onto the pads by pins 11 & 12, removing the 4, 10uf caps, connecting staight to new RCA's via the same caps as I used on previous PS's (models 1002 & 5552), and seeing how it sounds in comparison.

It is also easy to see the output stage and I have marked the outputs, L, R and G after this section.


Ps, is there a way to have switches on the PS to control Play, Stop, Prev and Next?
At the moment I just use remote, built in to the case thanks to Micks website, but wondered if there is a way to have onboard switches? A cct diagram with pin connections?

Thanks...
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Old 6th January 2006, 07:46 PM   #550
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Default ps 7002

As an amendment to my last post I shall only remove 2 caps, C423 and C424, the other 2 are the power supply caps, C406 and C407.
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