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[MLD7020] Bulbs specs?
https://forum.lddb.com/viewtopic.php?f=60&t=10993		 Page 1 of 1
Author:  doublecee [ 03 Sep 2023, 15:53 ]
Post subject:  [MLD7020] Bulbs specs?
Recent pickup from EBay.

Winning bid £99

Seller said laser dead.

Laser not dead. Just coated in nicotine!!!

So stripping down this week and giving it a deep deep clean.

2 of the four bulbs in the front panel confirmed dead. Keen to replace all four. Does anyone have any insight into the spec of these bulbs?

Clamp torque is strong and fully engages. Laser tries to focus but till I can safely access the lens to clean, it’s not sensing a disc. Spindle motor condition unknown at this point because I’m assuming that will only engage when a disc is correctly detected.

Viewing the laser through the iPhone camera confirms a solid emission from the diode, but also confirms lens is caked in gunk.

Quietly confident

Help on Bulbs much appreciated. Also if there are any known issues with caps in power supply / main board that are historically troublesome.

Attachments:
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Author:  doublecee [ 04 Sep 2023, 08:45 ]
Post subject:  Re: [MLD7020] Bulbs specs?
Cleaning lens made no difference other than removing a film layer of muck.

So, when loading a disc, the laser moves. Tries to focus, and then returns to its default position.

There is no error on the display such as “no disc”.

This is the case with a CD or laserdisc.

I’ve read shorting the TP near IC601 will put the unit into test mode and force the spindle to spin, so will do that to determine if the spindle is at fault.

Is there anything else I should be looking at?



CC
Author:  substance [ 04 Sep 2023, 09:21 ]
Post subject:  Re: [MLD7020] Bulbs specs?
Reach out to McIntosh support. They will sell you the OEM light bulbs. You will need to find a donor CLD-95/97 if you need to replace any internal parts.
Author:  doublecee [ 04 Sep 2023, 09:34 ]
Post subject:  Re: [MLD7020] Bulbs specs?  Topic is solved
Thanks.

Bulbs sorted.

Will put it service mode and see what’s what. Really want to do a full disassembly because it’s really sticky inside. It’s horrible.

It’s a real shame to see such a beautiful machine (cosmetics outside are mint) so disgusting inside.
Author:  doublecee [ 07 Sep 2023, 17:23 ]
Post subject:  Re: [MLD7020] Bulbs specs?
New bulbs installed. Starting to clean as much as I can as I go along.
Here is the post load laser clearly “working”.
Author:  krbahr [ 08 Sep 2023, 06:22 ]
Post subject:  Re: [MLD7020] Bulbs specs?
doublecee wrote:
New bulbs installed. Starting to clean as much as I can as I go along.
Here is the post load laser clearly “working”.


Common issue with 97 series players. Need to scope thru the electronics to determine why the unit is not detecting the disc and starting to spin. You should find it will spin up in service mode but it will not lock on a clean picture.
Author:  wildwall9 [ 09 Sep 2023, 01:28 ]
Post subject:  Re: [MLD7020] Bulbs specs?
doublecee wrote:
Thanks.

Bulbs sorted.

Will put it service mode and see what’s what. Really want to do a full disassembly because it’s really sticky inside. It’s horrible.

It’s a real shame to see such a beautiful machine (cosmetics outside are mint) so disgusting inside.

I got one for $100..was pristine on the outside..covered in black soot & sand on the inside and moisture runs on copper…was over clamping , stuck closed…no power ..replaced the PB ..got it spinning..Laser fires..PB was toast ..rotted badly and poorly repaired..no not by me..that came later..lol…still spinning butt not playing...Looking for a wrecked on the outside and good on the inside 97 donor….for a looow price…..
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