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krbahr
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Post subject: Re: Yamaha W901 and CLD-50? audio mods Posted: 19 Oct 2011, 00:27 |
Hardcore fan |
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Joined: 10 May 2007, 03:12 Posts: 1520 Location: United States Has thanked: 0 time Been thanked: 337 times
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My guess for the power supply is the dreaded Pioneer Arc Suppressor failing. It will look like a diode probably labeled D106 by the power input and the fuse will be blown. Clip out the Arc Supp and replace the fuse, it should work. I have never seen a CLD-50 but guess it is a late 80's unit. If you have one of the AC-3 RF boards in it then yes it can be removed and installed in your D702. Here is a link where someone described the 702 install process http://www.laaudiofile.com/ac3mod.html
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dwalterm
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Post subject: Re: Yamaha W901 and CLD-50? audio mods Posted: 31 Oct 2011, 20:01 |
Honest fan |
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Joined: 23 Jul 2006, 23:12 Posts: 77 Location: United States Has thanked: 0 time Been thanked: 0 time
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Picture of power supply. I see I missed the connectors on the right there are 2 - one is a flat ribbon cable and one is a 2 wire labelled CN1. I know the fuse is the wrong physical size but it is the right rating. Attachment:
Yamaha-W901 power supply.JPG [ 91.23 KiB | Viewed 5474 times ]
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dwalterm
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Post subject: Re: Yamaha W901 and CLD-50? audio mods Posted: 31 Oct 2011, 20:12 |
Honest fan |
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Joined: 23 Jul 2006, 23:12 Posts: 77 Location: United States Has thanked: 0 time Been thanked: 0 time
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More data on the audio boards... I found them installed in a CLD-503. One is labelled BDE Schott 12545 and I'm guessing its a Coax digital audio? The other is labelled Precision LD-1 and I'm guessing that is the AC-3 RF? Attachment:
CLD503 audio mods.JPG [ 148.89 KiB | Viewed 5474 times ]
This is how the rear panel looks with 2 extra coax RCA connectors: looks like I have to add in next reply
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dwalterm
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Post subject: Re: Yamaha W901 and CLD-50? audio mods Posted: 31 Oct 2011, 20:13 |
Honest fan |
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Joined: 23 Jul 2006, 23:12 Posts: 77 Location: United States Has thanked: 0 time Been thanked: 0 time
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This is what the rear panel looks like with 2 extra RCA coax connectors: Attachment:
CLD503 audio mods back panel.JPG [ 82.63 KiB | Viewed 5474 times ]
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dwalterm
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Post subject: Re: Yamaha W901 and CLD-50? audio mods Posted: 03 Dec 2011, 18:25 |
Honest fan |
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Joined: 23 Jul 2006, 23:12 Posts: 77 Location: United States Has thanked: 0 time Been thanked: 0 time
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Kurtis, Picture of connectors attached. Attachment:
Yamaha Power supply 40.jpg [ 138.64 KiB | Viewed 5387 times ]
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Guest
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Post subject: Re: Yamaha W901 and CLD-50? audio mods Posted: 14 Jan 2015, 19:00 |
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This Post is directed to "Kurtis".... as a new user I believe this thread is directly related to an issue we are having with our Laser Disc Player !! Within our older Home Theater System we have a Pioneer CLD-D604 Laser Disc Player, which has died. Investigation found that the Power supply board, VWR-1256-A, perhaps has the bad diode on the primary side which may be what causes it to blow the fuse, and also overheat several other components on the PS board primary side. Do you, or do you know anybody, that may repair or replace this PC board? We hate to lose access to a substantial Laser Disc library because the player is in-opt, plus the family really liked playing with the Karaoke feature using the several Pioneer karaoke disc we have.
Any and all advice would be appreciated. Thanx, Jim B.
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