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Old 14th July 2008, 05:56 PM   #10501
6h5c is offline 6h5c  Netherlands
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Quote:
Originally posted by RCruz
I still have a small issue..... The remote only works if pointed at less than one inch from the sensor in the CDP.

I do not know what started this but it is like that for a couple of month now.
Try an electrolytic (10...47u/16V) in parallel with CY01 on the front panel PCB, worked for me. I noticed the IR receiver somehow becomes less sensitive when RY11 is replaced by an inductor.

Ray
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Old 14th July 2008, 06:18 PM   #10502
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Quote:
Originally posted by 6h5c


Try an electrolytic (10...47u/16V) in parallel with CY01 on the front panel PCB, worked for me. I noticed the IR receiver somehow becomes less sensitive when RY11 is replaced by an inductor.

Ray
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Old 14th July 2008, 06:23 PM   #10503
6h5c is offline 6h5c  Netherlands
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One has to keep track of things
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Old 14th July 2008, 06:35 PM   #10504
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Default Re: Ricardo the TX behind the mechanism?

Quote:
Originally posted by magilla

Also a public thanks to Brent for cleaning up my C1.
No problem, it will be posted tomorrow

Drill the back panel and use a nut and bolt for the tx. Most txs come with insulation pads

Brent
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Old 14th July 2008, 07:38 PM   #10505
RCruz is offline RCruz  Switzerland
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Quote:
Originally posted by 6h5c


Try an electrolytic (10...47u/16V) in parallel with CY01 on the front panel PCB, worked for me. I noticed the IR receiver somehow becomes less sensitive when RY11 is replaced by an inductor.

Thank you Ray

Even with new batteries, the remote only works at about 15cm from the CDP.

I will surely try this cap in CY01....I will solder it from the back of the pcb so I do not need to remove it. .....

Regards

Ricardo
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Old 14th July 2008, 08:09 PM   #10506
RCruz is offline RCruz  Switzerland
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Quote:
Originally posted by avr300
You must admit, it would be a pretty good reason and easy to fix.
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Old 14th July 2008, 08:16 PM   #10507
RCruz is offline RCruz  Switzerland
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Quote:
Originally posted by 6h5c


Try an electrolytic (10...47u/16V) in parallel with CY01 on the front panel PCB, worked for me. I noticed the IR receiver somehow becomes less sensitive when RY11 is replaced by an inductor.
Can I use a 10uF 35v Ruby ZL ?

The other option is a 120uF Pana ... too big maybe.

Ricardo
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Old 15th July 2008, 06:32 AM   #10508
avr300 is offline avr300  Denmark
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Just use one of the original ones, you must have a bunch of them after having upgraded the whole machine.

Just grab what comes handy.
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Old 15th July 2008, 07:25 AM   #10509
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Also check RY11 for resistance. I've seen these go high resistance before, usually after the ribbon not being inserted correctly and shorting 5v to gnd. RY11 should be 4.7 ohm.

If these things mentioned in the thread do not not cure the problem then you may have a duff connector (or you are holding the remote the wrong way round )

Brent
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Old 15th July 2008, 10:31 AM   #10510
pzogal is offline pzogal  Europe
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Default output stage again...

another thing about output stage, this time Ray's discreete.
how about substituting R11 with a pot ?
couldn't one adjust DC offset this way and get rid of the output cap ??

greetings,
Pawel

i am going to fit discreete output, I am just curious, the cost will be rather small for me, I just need some Rs and low-pass filter components
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