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PSP 1001 Analog Joystick Always Going down?

KiTAKiTA Registered User regular
Anyone familiar with the internals of the PSP 1001?

I replaced my PSP faceplate recently, and I didn't seem to have any issues, although the up and down buttons were a little less responsive. I didn't think anything of it as I've been busy the last few days and haven't had time to fiddle with it -- I just presumed I didn't push something down far enough and the buttons weren't quite making a connection inside without a bit of extra pressure. It's also a possibility that this PSP faceplate is for a 2000 or somesuch, the hole for the analog stick is a bit bigger. Might be a clone or something.

Well, I hopped into a game I haven't touched since before switching it out, Unchained Blades, which supports the Thumbstick, and the game seems to think that I'm constantly pushing downwards no matter what.

It happens with any game I pop in that uses the thumbstick -- it constantly goes down. In addition, I do not recall if the main menu of the PSP supports the thumbstick, but it does not currently work in there -- no response whatsoever.

The issue even continues if I take the faceplate off while the system is on -- if there is absolutely no data from the thumbstick at all, the issue continues. I've tried the calibration trick (go into system information, swirl the stick for 30 seconds) without success. P-Tester reports 188 X data, 255 Y data, with X bouncing to 187 every so often, and Y being steady. Moving the stick does not change either value.

The system did fall out of my pocket on the bus, but it's taken harder tumbles than that and been fine. I wouldn't think that I damaged the system board or somesuch.

I uploaded pictures of the faceplate and the connector on the PSP system here:
http://imgur.com/a/avhIi

Did I miss a piece, by any chance? I don't see how the thumbstick's assembly could touch those connectors on the mainboard. Could perhaps I have a bit of junk under that metal plate pushing it up?

I have a replacement thumbstick assembly coming, bu am I going to be disappointed when it arrives?

KiTA on

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    KiTAKiTA Registered User regular
    edited December 2012
    So a bit more research into the crazy modding community that has sprung up around the older PSPs -- seriously, adding a 2nd Analog stick to the thing? WTF? -- there's apparently a small piece of clear plastic with pins that is supposed to be there, which transmits the signal to the board.

    You can see it briefly in these videos:
    http://www.youtube.com/watch?v=CdZX8-Fezs4
    http://www.youtube.com/watch?v=-_tzRudHNW8

    http://forums.afterdawn.com/t.cfm/f-211/psp_analog_stick_stuck_in_down_position-809967/

    So, new plan -- finding a way to replace / simulate that. The 1000 is old enough that it's hard to find replacement parts.

    Edit: Found it on ebay, wonder if I can scratchbuild one locally.

    KiTA on
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    Hahnsoo1Hahnsoo1 Make Ready. We Hunt.Registered User, Moderator mod
    I've actually done this repair twice. You are going about it the right way. You need to replace the analog stick portion (which you can only do with PSP 1000s... for newer PSP models, they are integrated on the faceplate and can't be removed without some difficulty). The last time I checked for replacement parts, though, was a couple years ago, so I don't know the availability for them nowadays. I would also wipe down the contacts for the directional buttons, too, while it's open, since I've had the problem of the D-pad suddenly "sharing" inputs with the analog stick for no reason.

    8i1dt37buh2m.png
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    KiTAKiTA Registered User regular
    Yeah, I've wiped that down. The D-Pad up and down (But not left and right) has been a bit iffy since the repair. I've cleaned it twice without luck. I'm wondering if maybe, heh, that missing bit of plastic went under the screen or under the dpad circuitry or something. I can order a replacement d-pad silicon thingy without much trouble (they're all over ebay, mostly from hong kong) but will cross that bridge if I have to.

    The ebay one was $1.99 but won't get here until sometime in late Janurary. Still looking for something local, by my version of "local" has expanded to "The United States."

    I might use some Shoe Goo (which I believe is nonconductive), make a 7x2x2 mm setup, and then poke 4 pieces of copper wire through. Alternately, I might take the Analog Stick to work and just add 2mm of solder to each contact, which should, in theory, give it the clearance needed. Not terribly enthused about that idea, however.

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    KiTAKiTA Registered User regular
    @Hahnsoo1

    The one on ebay looks quite a bit different than the ones I've seen in screenshots. Does it have to have individual channels down to the contacts, or would just a big slab of copper in there work? Cause I can almost definitely find a random slab of appropriately sized copper...

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    Hahnsoo1Hahnsoo1 Make Ready. We Hunt.Registered User, Moderator mod
    edited December 2012
    I'm pretty sure it has to have individual channels. I only tried once with a single piece of metal there for all the contacts, and it didn't work, although I wasn't trying too hard. You might have to simply cannibalize another PSP-1000 series to get another analog stick, if you can't find something local.

    Amazon.com has this:
    http://www.amazon.com/Joystick-Analog-Stick-Assembly-Replacement/dp/B00170JDZU

    Not sure if that's helpful for you.

    EDIT: OHHH, I know what part you are talking about. I've lost that a couple of times. :-P It's a little rubber squeeze piece with 4 single wires running through it. Yeah, each of the channels needs a separate wire.

    Hahnsoo1 on
    8i1dt37buh2m.png
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    KiTAKiTA Registered User regular
    edited December 2012
    Hahnsoo1 wrote: »
    Hahnsoo1 wrote: »
    I'm pretty sure it has to have individual channels. I only tried once with a single piece of metal there for all the contacts, and it didn't work, although I wasn't trying too hard. You might have to simply cannibalize another PSP-1000 series to get another analog stick, if you can't find something local.

    Amazon.com has this:
    http://www.amazon.com/Joystick-Analog-Stick-Assembly-Replacement/dp/B00170JDZU

    Not sure if that's helpful for you.

    EDIT: OHHH, I know what part you are talking about. I've lost that a couple of times. :-P It's a little rubber squeeze piece with 4 single wires running through it. Yeah, each of the channels needs a separate wire.

    Heh:

    Instant Order Update for (KITA). You purchased this item on December 18, 2012. View this order.

    Yeah, I'm waiting that to arrive, since I assumed that the analog stick was broken. I might try and rig something up -- for the last week I've been destroying high security locks at my workplace, I could take one of the analog sticks and solder a 2-3mm copper (brass?) spring to each pad. That... might work?

    By any chance do you know offhand if that little squeeze piece is available anywhere? At this rate I'd be happy to buy another one (the HK one was $2 with free shipping -- almost has to be a scam really) as long as I can manage to get this thing going, heh.

    KiTA on
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    DaipiDaipi Registered User new member
    I have problem psp issues with analog stick always going down on hold my finger hold to press near top down left is working analog is good but is matter lose at connection down running only need something to do solder of 4 pin gold analog stick mod and more other to or try to hold gum/glue currently is so problem some hack housing so be trouble for me just is good better psp slim and psp go with psvita good analog stick hope you read this communication reply to immediately thanks

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