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It is currently 18 Apr 2024, 11:47
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ldfan
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Post subject: Re: CLD-3030 Dolby AC3 Mod Posted: 18 Feb 2019, 01:45 |
Hardcore fan |
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Joined: 28 Jun 2014, 05:59 Posts: 1454 Location: San Francisco, CA USA Has thanked: 422 times Been thanked: 533 times
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Here are all the points you need for the CLD-3030 (CLD-99S)... Wide view from bottomClose up view of the AFM and Mute pointThe points for +5vdc (red), -5vdc (blue), and GND (black) can be found anywhere and clearly labeled so you don't have to use the points I chose on my player. Now you just need to build an AC3-RF board for the player. Hope this helps.
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ldfan
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Post subject: Re: [CLD-3030] Dolby AC3 Mod Posted: 18 Feb 2019, 19:05 |
Hardcore fan |
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Joined: 28 Jun 2014, 05:59 Posts: 1454 Location: San Francisco, CA USA Has thanked: 422 times Been thanked: 533 times
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patentpending wrote: Just to be clear you only connected the center of the COAX to the Audio FM point highlighted. The COAX shielding is only connected to the ground point on the AC3-RF board? That is correct. Just strip back some of the insulation on the AFM side and use a shrink tube as shown to insulate it from touching the board. The cable is actually getting "some" GND insulation from the AC3-RF board (although not as perfect if grounded on both ends but I was told it's okay so long as this cable did not exceed a certain length). Good luck getting the job done.
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patentpending
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Post subject: Re: [CLD-3030] Dolby AC3 Mod Posted: 19 Apr 2020, 23:54 |
Knows how to post |
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Joined: 17 Jul 2017, 21:38 Posts: 9 Location: United States Has thanked: 4 times Been thanked: 0 time
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Thanks for your detailed help!! Being stuck at home inspired me to complete this. Attachment:
IMG_3043.jpg [ 49.47 KiB | Viewed 2754 times ]
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patentpending
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Post subject: Re: [CLD-3030] Dolby AC3 Mod Posted: 19 Apr 2020, 23:54 |
Knows how to post |
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Joined: 17 Jul 2017, 21:38 Posts: 9 Location: United States Has thanked: 4 times Been thanked: 0 time
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Made my own circuit: Attachment:
60591859845__44AF3256-A2CD-4D65-8701-C0899EC6A282.jpg [ 22.69 KiB | Viewed 2754 times ]
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ldfan
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Post subject: Re: [CLD-3030] Dolby AC3 Mod Posted: 20 Apr 2020, 00:59 |
Hardcore fan |
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Joined: 28 Jun 2014, 05:59 Posts: 1454 Location: San Francisco, CA USA Has thanked: 422 times Been thanked: 533 times
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Cool . Nice to see people trying to keep the RF mods going. Looks similar to the one I built for my ProScan unit (as shown next to one made by BDE for size comparison). And this is my new design at half the size (as shown next to the BDE board once again for size comparison). patentpending wrote: Thanks for your detailed help!! Being stuck at home inspired me to complete this. Attachment: IMG_3043.jpg By the way, which processor do you have in this pic? I don't remember seeing this menu design but I like it since shows all the data on the DD signal.
Last edited by ldfan on 27 Jul 2020, 23:34, edited 1 time in total.
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odotb3
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Post subject: Re: [CLD-3030] Dolby AC3 Mod Posted: 25 Jul 2020, 15:10 |
True fan |
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Joined: 27 Jul 2014, 20:59 Posts: 298 Location: North London Has thanked: 79 times Been thanked: 97 times
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dragonhide wrote: I am looking to do this too.
Can I ask where did you find the transistors? One guide I found says you need a 2SC 1740 PNP but does it need to be that exact one? 2SC1740 is an NPN transistor. If you are looking for an equivalent then make sure to match the specs.
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