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tjlint
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Post subject: Radio Shack MD-1000 belt...sealed in gear box Posted: 19 Aug 2018, 13:14 |
First post |
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Joined: 19 Aug 2018, 13:07 Posts: 1 Location: United States Has thanked: 0 time Been thanked: 0 time
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I picked up a Tandy Realistic MD-1000 multi-disk/laserdisc player yesterday. it plays fine but it does not fully engage the head upward when loading laserdiscs. CDs load fine, but they're much lighter. in my other players (pioneer) the tray load belt also engages the head mechanism, and i think this radio shack/funai works that way as well. a little help in lifting the head mech, and the player works fine. the belt seems a little loose. I have an assortment of replacement belts, but when I went to replace it, the belt is trapped in the gear box. the gear mech unscrews from the loading tray section, but the spindles/gears are permenently attached to the gear box mech, and there is no clearance to pull the old belt out/insert new belt. no screws to remove the drive gear or spindle. any advice on how to approach this? thanks.
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ldstl
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Post subject: Re: Radio Shack MD-1000 belt...sealed in gear box Posted: 07 Apr 2022, 16:13 |
Honest fan |
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Joined: 23 Jan 2018, 05:28 Posts: 66 Location: United States Has thanked: 10 times Been thanked: 25 times
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I wanted to revive this topic for a couple reasons 1 - I just bought an MD-1000 and was going to look into modding it for AC-3, but there are no service manuals anywhere I can find. So, the next logical step is to buy one and open it up 2 - I wanted to post additional pictures of the insides for everyone else's sake who comes across this thread. Bonus post reason - When I put a disc in, the laser moves in to read the disc (CD and LD), but the spindle motor never spins the disc up during read operation. I think I have a dead spindle motor in this thing because if I unplug the spindle motor power, the behavior is exactly the same. My 2 cents, this thing is either a clone of a Pioneer CLD-1070 or CLD-1080. Photos enclosed below with a possible RF tap point. MD-1000 Board with laser assembly removed Right side board view Test Pins RF Tap? Break out board and Transformer Loading Belt and Gears RF Tap circled ???
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cplusplus
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Post subject: Re: Radio Shack MD-1000 belt...sealed in gear box Posted: 07 Apr 2022, 23:28 |
Hardcore fan |
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Joined: 13 Aug 2018, 03:18 Posts: 1520 Has thanked: 449 times Been thanked: 588 times
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That is probably full RF. ldstl wrote: When I put a disc in, the laser moves in to read the disc (CD and LD), but the spindle motor never spins the disc up during read operation. Likely another dead Sony KHS-130A rather than the spindle. ldstl wrote: My 2 cents, this thing is either a clone of a Pioneer CLD-1070 or CLD-1080. I'm still not sure who made it but it was not Pioneer. It has a Sony pickup. Interesting to see 5 Yamaha ICs.
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cplusplus
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Post subject: Re: Radio Shack MD-1000 belt...sealed in gear box Posted: 08 Apr 2022, 03:54 |
Hardcore fan |
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Joined: 13 Aug 2018, 03:18 Posts: 1520 Has thanked: 449 times Been thanked: 588 times
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ldstl wrote: Is it worth it to replace sony laser pickups? It is, but the cost of replacing the KHS-130A in this model likely exceeds the value of it working. Could you post photos of the other sides of the boards? I'm wondering if there is anything labeled on the other side that could help identify tap points.
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