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Author Topic: PROGRESS on CD-ROM² Repair  (Read 2764 times)

Keith Courage

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Re: PROGRESS on CD-ROM² Repair
« Reply #45 on: February 10, 2014, 11:50:10 AM »
Check to see if the middle gear moves freely with your fingers.

Usually the middle gear swells up over time making it almost impossible for the motor to spin it.
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wolfman

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Re: PROGRESS on CD-ROM² Repair
« Reply #46 on: February 10, 2014, 07:32:16 PM »
Quote from: Keith Courage on February 10, 2014, 11:50:10 AM
Check to see if the middle gear moves freely with your fingers.

Usually the middle gear swells up over time making it almost impossible for the motor to spin it.

It´s a chops gear, so it cant swell  :wink:
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CryptoCoin Warrior
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AKA woolfman on AtariAge, PlanetVB, Circuit-Board.
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Keith Courage

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Re: PROGRESS on CD-ROM² Repair
« Reply #47 on: February 11, 2014, 12:30:09 PM »
Oh okay, I must have skipped over the part where you mentioned changing the gears.

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thesteve

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Re: PROGRESS on CD-ROM² Repair
« Reply #48 on: February 12, 2014, 04:15:59 PM »
Even chops gears should turn easily
If not run a paper between the gears with the motor screws slightly loose to set the tooth fit

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wolfman

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Re: PROGRESS on CD-ROM² Repair
« Reply #49 on: February 17, 2014, 04:24:06 AM »
So I replaced the motor today, which is totally new (Mabuchi FF 050SH). Gears turn easier now than before.

But the motor still won´t spin up for some reason, the sled stays where it is, no matter where. Only after I push it to the center switch the laser comes on, starts focusing, finds disc, spindle starts, TOC read. But NO SLED MOVEMENT.

The strange thing is, before I replaced the dead laser the sled moved!

Whats causing this?

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CryptoCoin Warrior
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wolfman

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Re: PROGRESS on CD-ROM² Repair
« Reply #50 on: February 17, 2014, 10:09:08 AM »
PROGRESS!

Well, I´ve played again with it for a few hours. I finally found a broken solder spot on one of the BA6290s and right after that the sled moved again.

After a little bit of fiddling with the pots I got stable audio (though with a cracking noise in it). It would play the first 3 tracks, then it would cut out after trying to find the next track. With another CD it was even better, though it wouldnt play until the end. Inbetween I occasionally get a cracking/random noise, which I cant complete remove by adjusting the pots...

But with all progress made I can´t get it to read Game CDs for some reason. It would try a few seconds, then it cuts out. What could I do?
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CryptoCoin Warrior
My Setup: PC Engine LT, CD-ROM², IFU-30
AKA woolfman on AtariAge, PlanetVB, Circuit-Board.
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thesteve

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Re: PROGRESS on CD-ROM² Repair
« Reply #51 on: February 17, 2014, 05:26:28 PM »
Any crackle will cause data errors preventing game load
If everything is moving smoothly its either pots or laser

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wolfman

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Re: PROGRESS on CD-ROM² Repair
« Reply #52 on: February 17, 2014, 06:26:46 PM »
Quote from: thesteve on February 17, 2014, 05:26:28 PM
Any crackle will cause data errors preventing game load
If everything is moving smoothly its either pots or laser

Sent from my ADR6300 using Tapatalk 2

It is moving smoothly when playing music, though progressivly more cracking in sound (not drive itself!) when the laser moves outward on later tracks.
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CryptoCoin Warrior
My Setup: PC Engine LT, CD-ROM², IFU-30
AKA woolfman on AtariAge, PlanetVB, Circuit-Board.
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thesteve

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Re: PROGRESS on CD-ROM² Repair
« Reply #53 on: February 18, 2014, 04:17:44 PM »
that sounds like pot adjustments to me
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wolfman

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Re: PROGRESS on CD-ROM² Repair
« Reply #54 on: February 18, 2014, 10:38:12 PM »
Quote from: thesteve on February 18, 2014, 04:17:44 PM
that sounds like pot adjustments to me

Trouble is, I´ve played around more than 2 hours with the pots, to no avail. Best I get is sound playing, but with crackling noise in it. On the other drive I adjust it within 15 mins....

Any other issue that might prevent a good setup?
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CryptoCoin Warrior
My Setup: PC Engine LT, CD-ROM², IFU-30
AKA woolfman on AtariAge, PlanetVB, Circuit-Board.
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turbokon

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Re: PROGRESS on CD-ROM² Repair
« Reply #55 on: February 18, 2014, 11:54:40 PM »
This is why I hate messing with the cd-rom2 unit.


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wolfman

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Re: PROGRESS on CD-ROM² Repair
« Reply #56 on: February 19, 2014, 01:50:17 AM »
Quote from: turbokon on February 18, 2014, 11:54:40 PM
This is why I hate messing with the cd-rom2 unit.


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Yes, I get your point. But what can I say.....I fell in love with the interchangeability of components...  :-"
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CryptoCoin Warrior
My Setup: PC Engine LT, CD-ROM², IFU-30
AKA woolfman on AtariAge, PlanetVB, Circuit-Board.
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thesteve

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Re: PROGRESS on CD-ROM² Repair
« Reply #57 on: February 19, 2014, 03:40:38 PM »
Have you tried a slight adjustment of the pot on the laser

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wolfman

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Re: PROGRESS on CD-ROM² Repair
« Reply #58 on: February 19, 2014, 05:22:22 PM »
Quote from: thesteve on February 19, 2014, 03:40:38 PM
Have you tried a slight adjustment of the pot on the laser

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laser is brand new
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recent addition: Japanese Language Skills, A1 proficiency level
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CryptoCoin Warrior
My Setup: PC Engine LT, CD-ROM², IFU-30
AKA woolfman on AtariAge, PlanetVB, Circuit-Board.
-----------------------------------------------------------------------

thesteve

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Re: PROGRESS on CD-ROM² Repair
« Reply #59 on: February 19, 2014, 06:11:43 PM »
Sadly, it doesn't matter
I've had to adjust more new then old

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