M2 V1.22a V5/6 PS2 problem.

[ShadowKnyght]

Sorry to place this question twice - but need help badly...

Could that bad batch with the solder bridge cause a total station failure?

I just installed 2 V1.22a into V5/6 stations - one worked one worked initially but then failed...

All points were perfect - triple checked - worked for the first PS1 test cd - then I tried a PS2 test cd and it failed - so I tried the PS1 one again and that now also failed.

Looking further into things - the station boots has sound and video etc and will shift the laser lens along the rails but appears to not want to spin the cd. After a minute it sort of tries to spin the cd but only sort of steps or ticks it a few times and never actual rotates it more than a few centimeters at a time.

Even with the chip now completely removed it refuses to spin - no cable damage - no shorts, no fuses blown that I could find, but no game loading either - using originals with the chip now removed.

Could this be the fault of the bridged pins on the messiah?

My last batch of Messiah had a mixture of the Actel 303 and the Actel 306 which has a little F surrounded in white in the bottom right corner...

I have checked every thing I can think of so I am now reaching for reasons - i.e. the chip batch - 303 or 306, the firmware V1.22a not working well on 30002 R stations etc...

Any ideas?

All ribbon cables are connected and continuity exits - i.e. no breakages. The only thing I noticed was one of the chips that has that grey rubber material on top, near the ribbon cable to the lens unit (bottom right of station MB when the CD drive is on the right) heats up a little - may be normal - never felt during operation before.

Help!?

Don't really want to have to buy a replacement startion for the customer unless I have to.

RE-cap Chip totally removed - no solder splashes, no solder balls, no obvious damage to anything, sound still works - video still works. But no games play at all (original obviously now the chip is removed)

[ShadowKnyght]

Is it likely that the BA5815FM Chip is to blame?

How easy do these blow?

As I said - no wiring problems so strange if it has...

Or the BA6664FM...

Any one sourced these in Australia? How much do they go for? could get them through work if Farnell has them...

I think it is the BA58 that is heating up a little - is this usual?

I am being vague here as my Home PC has also decided to kick the bucket at the same time as I am having this problem so am emailing / posting from a family members computer - thus the PS2 is not in front of me right now.

Help please.

[loy]

umm check your laser it seems like your laser is not seeing your cd and not spinning it up

[charlie_ps2]

BA58/BA66 - search on the text - a whole load of stuff in here about how they blow and where you can get them. Most ususal reason ia BA58 blows becaus of a short on it or a feed to it or the PS2 is run for more than 10 mins with the metal cage off or the heat conductor not properly compressed on the metal cage.

A Messiah 2 that worked isn't a Messiah 2 that would blow any component in the PS2; The only fault in the 303 batch was the occasional bridging of pis on the Actel chip itself (other than pins 1 & 2 which are supposed to be bridged).

[loy]

try a laser swap

[ShadowKnyght]

Originally posted by charlie_ps2
BA58/BA66 - search on the text - a whole load of stuff in here about how they blow and where you can get them. Most ususal reason ia BA58 blows becaus of a short on it or a feed to it

Yes I did a search - but the difference with my station is that I get the reset light and the blue light and the tray ejecting and video and sound and some sled movement just no the three turns on power up that seems to be standard if working - does this indicate one of these chips over the other or is it usual that when either of these BA chips blows that the station black screens and or has none of the lights showing up.

I don't wont to order both chips if this appears to indicate one over the other. - from what I have read maybe the BA666 but then most people say their stations are reasonably dead when that chip goes - and this one works fine except for the game loading - only small problem that one..

Again as stated above not a single fuse has blown and no shorts... only possibility is that the little glass diode on the M2 may have shorted on the metal cage when assembled - but highly unlikely as I coat the diode and the SMT caps with super glue so as to nsulate them... safer than electrical tape.

So if it did short then it damged something in the motor control without blowing any fuses or affecting the functionality of any of the rest of the PS2...

Any ideas?

How much do replacement laser units go for? (not convinced that this will help though - luckily the customer is reasonably understanding...) help!!

[ShadowKnyght]

Any one else have any suggestions outside of replacing the laser - as I do not have any spare laser units yet - i.e. never killed a station so don't have any lying around.

I have done a search and no one seems to have had this fault reported before - i.e. all works except game loading - i.e. not completely dead. but totally useless all the same...

Help!

[loy]

since u modded two ps2 why don't u swap one from the other to see if the laser is the problem

[ShadowKnyght]

Because I did not want to end up blowing up parts of a working station and having to buy two replacements...

Also because I have returned the working station to the customer and now only have the not so working station to play with...

Also unless the laser diode is blown or the motor has some how been destroyed (or its control circuit) the laser unit does not appear to be at fault - well apart from the not spinning bit...

I may just have to buy a set of the BA chips and see if they do any good - but with no fuses blown and all other functionality still present... I am not sure if that would be a wise investment...

Is there a hidden fuse in the laser unit where the white ribbon cable enters the Green PCB area? I could not get in there...

[loy]

well it only spins like 1/4?