PS1 Another Sound Problem

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CobraMJD
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PS1 Another Sound Problem

Post by CobraMJD » October 4th, 2014, 4:36 pm

Hi, guys, Good to know thats a active forum for the old and good PsOne.
I have a problem and wanna know if someone could help me or at leat give me a path to go.

Its a PS1 SCPH-7001 with a terrible noise since de start up, but loads the game nicely, so I opened the console, and without the case the PSX starts up with perfect sound! But no disc reading cause the Safety Switch is not pressed, so I press manually and the noises show up.

Thats a strange effect no? Some hints?
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Shendo
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PlayStation Model: SCPH-7502
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Post by Shendo » October 4th, 2014, 6:46 pm

Is that noise coming from the speakers or the unit itself?
Was it working properly before or you perhaps bought it broken?
Is it grinding noise, high pitch or something else? Perhaps you could record a video of the problem...
Dev console: SCPH-7502, FreePSXBoot, CH340 serial cable.
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Shadow
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Post by Shadow » October 4th, 2014, 9:45 pm

From your wording, it sounds like a bad laser mechanism.
Development Console: SCPH-5502 with 8MB RAM, MM3 Modchip, PAL 60 Colour Modification (for NTSC), PSIO Switch Board, DB-9 breakout headers for both RGB and Serial output and an Xplorer with CAETLA 0.34.

PlayStation Development PC: Windows 98 SE, Pentium 3 at 400MHz, 128MB SDRAM, DTL-H2000, DTL-H2010, DTL-H201A, DTL-S2020 (with 4GB SCSI-2 HDD), 21" Sony G420, CD-R burner, 3.25" and 5.25" Floppy Diskette Drives, ZIP 100 Diskette Drive and an IBM Model M keyboard.
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CobraMJD
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Post by CobraMJD » October 5th, 2014, 12:01 pm

Shendo wrote:Is that noise coming from the speakers or the unit itself?
Was it working properly before or you perhaps bought it broken?
Is it grinding noise, high pitch or something else? Perhaps you could record a video of the problem...
its a high pitch from the speakers, I got it with this problem.

In one of my tests, suddenly the intro of FF Anthology was working fine, but I move the playstation and the noise return.

Then I found out the making press on the playstation the noise changes, almost with the sound correct, but missing some notes. I have to align the laser? I never suspected the laser because the game reading is good.
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Shadow
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Post by Shadow » October 5th, 2014, 3:33 pm

http://www.psxdev.net/forum/viewtopic.php?f=24&t=616
Development Console: SCPH-5502 with 8MB RAM, MM3 Modchip, PAL 60 Colour Modification (for NTSC), PSIO Switch Board, DB-9 breakout headers for both RGB and Serial output and an Xplorer with CAETLA 0.34.

PlayStation Development PC: Windows 98 SE, Pentium 3 at 400MHz, 128MB SDRAM, DTL-H2000, DTL-H2010, DTL-H201A, DTL-S2020 (with 4GB SCSI-2 HDD), 21" Sony G420, CD-R burner, 3.25" and 5.25" Floppy Diskette Drives, ZIP 100 Diskette Drive and an IBM Model M keyboard.
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CobraMJD
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Post by CobraMJD » October 5th, 2014, 7:46 pm

yeah, I found this forum because of this topic, but I didnt thinking is the same problem, but I will test a music CD for a prove.

Thnks.
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