Blu-ray drive does not pull in disc - CECHA01

L

Lavalamp

Forum Noob
Model: CECHA01

Issue: Blu-ray won't take in disc. No evidence of motor function, just flashing blue LED with disc in the mouth of the drive. No warning messages on boot.

Attempted fixes: removed and reset existing drive, swapped control board onto replacement drive, opened PS3 all the way down to the PCB to check an op-amp (saw this on a random YouTube video) to check if it's burned out. No dice on all the above. Also tried the hold power/eject blu-ray reset but nothing.

Details: Disc sensor seems to be fine (blue light flashes with disc under sensor). There was a stuck disc when I got the PS3 off eBay, removed and reseated all the mechanical parts in the drive, removal didn't do the trick. Replacement drive was installed (no-remarry) to test, same behaviour. Swapped control boards with replacement mechanism and old control board, no change. All ribbons seated fine, tried both new and old main ribbon, mechanism (at least in the old one) moves fine (manually), haven't gotten into the gears of the replacement. On 4.87 Ferrox Cobra.

Theory: my guess is there's something before the drive which is blocking functionality. Power into the drive maybe? Some other controller on the PS3 mainboard? Or maybe the controller board itself?

I'm out of ideas on what to debug. Next step is to try marry the replacement drive but that's for another day and I don't hold out much hope. Should an unmarried drive still take in a disc or is it effectively dead until marrying?

Any and all ideas welcome. The problem is I can't use the drive to test or pull down games from disc to debug why my on-drive library isn't playing ball (a whole different discussion).

EDIT: All mechanisms reset and seated correctly for both original and replacement drive.
 
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If you look in the PS3 service manual, you can find the circuit that supplies power to the BD drive. There is a transistor (Q6010) that, if it goes bad/burns out, makes it so the BD drive doesn't get enough power to operate. Take a look at the circuit diagram to see it yourself, but it's literally only this one component that will result in this happening (the power comes in from the main and splits in the transistor to +12_V BD and +5_V BD, which go directly to the BD drive). The only thing upstream is the power supply itself... which, if it were bad, the PS3 wouldn't be powering on at all.

Take a look at my only post on this board. I navigated my way through this exact problem. I desoldered the transistor from a YLOD board and soldered it onto my board. Everything worked fine after that.
 
This one?

https://www.psx-place.com/threads/m...-motherboard-advice-needed.32510/#post-275834

Thx! I'll take a look. I take it the transistor on the main board not the Blu-ray. Oh well, I have two drives now!

Also for posterity, service manual link:

https://elektrotanya.com/sony_playstation_3_cecha00_cecha01_sm-ps3-0013e-02.pdf/download.html#dl

EDIT: ah yes, the the video on your post is the one I used to take a look at the transistor (incorrectly referred to as op-amp in OP). On first pass there was no evidence of burn-out on my end when I stripped the console but I'll take another look, maybe I missed something.

EDIT 2: for more posterity, the transistor in question and Mouser/Digikey link (I don't have a spare dead console nor do I want to roll the dice on one!)

https://www.mouser.com/ProductDetail/?qs=jcx%2B0HVgj2YtP03RabH5VQ==
https://www.digikey.com/en/products...IgTCBcDaIMoEkAsBOJBmAQgEQJoFoAVARnwFF0QBdAXyA

Q6010
SI4943BDY-T1-E3

I have not tried this yet, info for guidance and note-to-self only.
 
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UPDATE: I rechecked the transistor, no sign of burn-out, swapped it out anyway, no change in disc drive performance. Still doesn't pull the disc in. Any ideas from the hive mind more than welcome.
 

Hello I have a similar problem with my ps3. The problem is that my (Blu-ray) discs don't normally read as they appear in the video, but if I put the disc vertically on the machine it reads perfectly. I could not find the solution to this problem anywhere.
 
senturkeray9 said:

Hello I have a similar problem with my ps3. The problem is that my (Blu-ray) discs don't normally read as they appear in the video, but if I put the disc vertically on the machine it reads perfectly. I could not find the solution to this problem anywhere.
Click to expand...
It usually means the laser pickup is in the limits of becoming "blind"

https://www.psx-place.com/threads/p...y-changed-the-bluray-drive.21809/#post-149894
sandungas said:
...If you have the PS3 in horizontal position... then the tiny lens of the laser needs to move "up" and "down" to focus on disc surface, and because the earth gravity the laser coils needs to make a bigger effort to move the lens "up" than to move it "down"

But if you place the PS3 vertical, then the lens needs to move "left" and "right", and the effort is the same. This allows the laser coils to focus in a more "effortless" way
Click to expand...
 
Try swap this ic near the usb ports, I've had this issue and swapping this ic out cured the issue
 

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Lavalamp said:
UPDATE: I rechecked the transistor, no sign of burn-out, swapped it out anyway, no change in disc drive performance. Still doesn't pull the disc in. Any ideas from the hive mind more than welcome.
Click to expand...

I just tracked down a similar problem. Replaced the Q6010 chip, but didn't solve the problem. Tracked it down to a shorted output filter cap, C3247. It's a 47uF 25V tantalum cap that apparently filters the 12V supply to the BD. It's the large black thing with the silver band on one end near Q6010. (There's also a smaller one right there for the 5V output.)

I measured the resistance from the 12V input from the PS3 power supply to the 12V on the BD power connector. I was seeing an oddly low resistance, which should not be with the FET in the way (FET shows abour 2.5M ohms between source and drain, since it's enhancement mode type). By removing a couple of key components, like the 0 ohm resistor near the BD power connector, I isolated it to this cap. It was showing 1 ohm, when it should be n/c across the cap terminals. Have not replaced it yet, but pretty certain this is the problem. Caps go bad as devices age.

Be careful not to melt any of the connectors, like the ribbon connector near the 0 ohm resistor. It took forever to remove it with a hot air tool because these boards have such hefty ground planes that suck the heat away. I shielded it with some Kaptan tape. And then forgot to shield it when I put the resistor back ...

I'm ordering a T491D476K025ATAUTO to replace the failed filter cap.
 
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