Pot smd for SCPH-1002

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~PSXLoVeR95~
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Pot smd for SCPH-1002

Post by ~PSXLoVeR95~ » January 27th, 2021, 2:26 am

Hello there, how's going? :3

I've a question for you, guys...
My SCPH-1002 is working fine, but the pot for F.BIAS and F.GAIN are damaged -- so, of course, the laser doesn't working.

Somebody know the correct value for these two SMD pots?

Image

Thanks a lot and have good day :-) !
~ My PS Collection ~
4x SCPH-1000
2x SCPH-1001
7x SCPH-1002
1x SCPH-3000
1x SCPH-3500
1x SCPH-5000
1x SCPH-5501
1x SCPH-5502
2x SCPH-7000
2x SCPH-7002
1x SCPH-7500
1x SCPH-7501
2x SCPH-9000
1x SCPH-9002
3x SCPH-102
>>IT'S A SONY

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SCPH-1002
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Post by SCPH-1002 » January 29th, 2021, 1:28 am

According to your signature here, you've got the SCPH-1002 model 13 including the broken one.
Can you just look into another one which value has those SMD pots? Simple thought I know and you might be already considered but doesn't work. In case it should solve your issue, it was a pleassure to help.

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Post by PSX_ISO » January 29th, 2021, 3:08 am

What kind of damaged? Oxidized?

Probe a working unit and measure its resistance. Measure its resistance at factory spec, followed by fully closed.

Worst case swap the trim pot from a working unit temporarily, make your adjustment and measure its resistance. Recreate that using some resistors, I'm assuming some 1/2w metal films would do just fine. Probably would last a lot longer too.

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Post by ~PSXLoVeR95~ » January 30th, 2021, 11:14 pm

SCPH-1002 wrote: January 29th, 2021, 1:28 am According to your signature here, you've got the SCPH-1002 model 13 including the broken one.
Can you just look into another one which value has those SMD pots? Simple thought I know and you might be already considered but doesn't work. In case it should solve your issue, it was a pleassure to help.
15x SCPH-1002 :D (The list is no longer updated)

So, with a multimeter, I've to test the maximum range of the POT, right?
And replace with another one, of course.
PSX_ISO wrote: January 29th, 2021, 3:08 am What kind of damaged? Oxidized?

Probe a working unit and measure its resistance. Measure its resistance at factory spec, followed by fully closed.

Worst case swap the trim pot from a working unit temporarily, make your adjustment and measure its resistance. Recreate that using some resistors, I'm assuming some 1/2w metal films would do just fine. Probably would last a lot longer too.
Well, disoldered by accident and damaged. So, I need another smd resistor for 1002.

(Oh btw, hope you repair your 1000 very soon. I love the SCPH-1000 -- they are extremely fast during reading disc)
~ My PS Collection ~
4x SCPH-1000
2x SCPH-1001
7x SCPH-1002
1x SCPH-3000
1x SCPH-3500
1x SCPH-5000
1x SCPH-5501
1x SCPH-5502
2x SCPH-7000
2x SCPH-7002
1x SCPH-7500
1x SCPH-7501
2x SCPH-9000
1x SCPH-9002
3x SCPH-102
>>IT'S A SONY

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Mdv
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Post by Mdv » April 21st, 2021, 9:06 pm

here is a guide for the 1002 pot measurements: http://dogbreath.de/PS1/LaserAlignment/Laser.html

play134
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PlayStation Model: scph-1001

Post by play134 » November 13th, 2021, 2:24 pm

hello guys, my RV701 (F.GAIN) pot is damaged. the smd pots on the board are the same? Has anyone identify them?

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Post by ~PSXLoVeR95~ » April 17th, 2022, 9:09 am

play134 wrote: November 13th, 2021, 2:24 pm hello guys, my RV701 (F.GAIN) pot is damaged. the smd pots on the board are the same? Has anyone identify them?
Hello, I think I've found (finally) the pot value

F.BIAS (14) = 10Kohm
F.GAIN (54) = 50Kohm

Let me know if works
~ My PS Collection ~
4x SCPH-1000
2x SCPH-1001
7x SCPH-1002
1x SCPH-3000
1x SCPH-3500
1x SCPH-5000
1x SCPH-5501
1x SCPH-5502
2x SCPH-7000
2x SCPH-7002
1x SCPH-7500
1x SCPH-7501
2x SCPH-9000
1x SCPH-9002
3x SCPH-102
>>IT'S A SONY

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