My ATA PAP2T-NA Adapter Bricked, I want to fix

[tester2]

hi guys i need your help, i got PAP2T-NA which is not working, just hang on 2 Lights on it 1 is Red & 1 is Green.

So i like to know how to fix this PAP2T.

I am attaching Photo, please have a look.

As well as I attach the Picture of PAP2T Motherboard.


Hopefully waiting for your reply

[nitelite]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

I have repaired a pap2 but it is a different revision than yours. https://www.badcaps.net/forum/showthread.php?t=29433

Mine had a bad transistor that I found by plugging the board in and touching components one at a time till I found one that was hot to the touch. Using an ohm meter I confirmed the failed component. See my thread for the readings.

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi there, i apparicate for your reply.

do you think my board having same issue, or on my board a CHIP which hold software having poor soldaring, i even don't know where is the CHIP on this Board & where is Q156 located.

And you board having issue about "Loude Static", but my board having diffrent issue, i think my board having issue of loading software while rebooting PAP2T, so it is showing 1 Red & 1Green Light.

Thanks

[shortchange]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

Hi,
Still repairing?

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi guys, sorry for the delay, because i order "Soldaring Rework station smd 898D",

So i resolder the above as shown in Post#4, still I am having same light are ON. As well as I did HOTAIR Flow over the Chip also, still same 1 red & i green light ON.

So i like to know "How to check which component is Damage on the Board",

Can any body let me know the procedure to check Component on the Board, then i will check one by one.

Thanks

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi guys, i am still trying to fix this PAP2T, any help appricated.

Thanks

[ben7]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi guys, i am still trying to fix this PAP2T, any help appricated.

Thanks

Check U11 and U12 to see if they are good. If you are not sure how to check them, then tell us what numbers/letters are written on them?

They are most likely voltage regulators ... transistors are marked with a 'Q'; integrated circuits with 'IC' or 'U'.

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi there, please let me know, by using multimeter RED Wire led & BLACK Wire led where i have to touch on U11 & U12 pins.
And on which reading I have to adjust my Multimeter Pointer for example 2000K etc. I am having exactly same this Multimeter.

I already saw U11 & U12 on my Board.

Please how to check this is good or Bad, then i will check and post my result.

Thanks

[ben7]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi there, please let me know, by using multimeter RED Wire led & BLACK Wire led where i have to touch on U11 & U12 pins.
And on which reading I have to adjust my Multimeter Pointer for example 2000K etc. I am having exactly same this Multimeter.

I already saw U11 & U12 on my Board.

Please how to check this is good or Bad, then i will check and post my result.

Thanks

Ok, that is what I thought. Yes I can tell you where to measure them, but you have to tell us what the part numbers are on U11 and U12 ... the pictures aren't good enough to see the part numbers.

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi there, here it is the part numbers

U11 -- AMC1117, F0823J
U12 -- AMC1117, F0823J

both of them having same part numbers, i look very carefull, there is no mistake in part numbers, i use a lense which is use to fix WATCHES, so i put board close to my eyes and i read with lenses clearly.

When I order SMD REWORK STATION i order this Glasses also, so i have all the instruments to check the BAD parts.

Thanks

[fixitdaz]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi guys, sorry for the delay, because i order "Soldaring Rework station smd 898D",

So i resolder the above as shown in Post#4, still I am having same light are ON. As well as I did HOTAIR Flow over the Chip also, still same 1 red & i green light ON.

So i like to know "How to check which component is Damage on the Board",

Can any body let me know the procedure to check Component on the Board, then i will check one by one.

Thanks

sorry to read you purchased a 898D rework station,we had the hot air gun transistor fail and put power on to the element (Failed closed) causing the hot air gun to overheat and melt this is the video we made after the event.

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi there i am still waiting to know "how to check U11 & U12"

thanks

[ben7]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

hi there i am still waiting to know "how to check U11 & U12"

thanks

Yes yes, patience! I didn't get home 'till late last night, and I was tired... sooo, yeah.

Ok, this is the pinout for the AMC1117's
http://www.seekic.com/uploadfile/ic-...5991839498.jpg

Find a spot that is connected to ground on the PCB and connect your black probe to there, then measure the voltage at the input and output pins of both regulators. Report back your readings!

Just a note ... the pin in that image which is marked 'ADJ/GND' .... don't use it as a ground point! It is likely not connected to ground, instead it is probably connected to a resistor divider to set the output voltage!

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

Please make me correct in the pictures

Picture 1 & 2 where i mark, that is same pin, can i use that for GROUND purpose.

Picture 3 & 4 where i mark, can i assume that is Pin2 (V out) & Pin3 (V in).

Thanks

[ben7]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

Please make me correct in the pictures

Picture 1 & 2 where i mark, can i use that for GROUND purpose.

Picture 3 & 4 where i mark, can i assume that is Pin2 (V out) & Pin3 (V in).

Thanks

Yep, Looks like you have got it right! :P

Now, what are the voltages?

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

on my Multimeter, where i have to Adjust in VDC, please let me know. Can i Adjust 20V DC.

UPDATE :

I Power ON PAP2T then i touch Black Probe to GROUND & Red Probe to Pin 2 & 3 on both IC's, there is no reading shows. it shows just 0.00.

[ben7]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

on my Multimeter, where i have to Adjust in VDC, please let me know. Can i Adjust 20V DC.

UPDATE :

I Power ON PAP2T then i touch Black Probe to GROUND & Red Probe to Pin 1 & 2 on both IC's, there is no reading shows. it shows just 0.00.

Well that 'ground' point you marked may not be ground. Try measuring the voltage with the black probe on the negative of one of the electrolytic capacitors.

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

I don't know which one is the Electrolyte Capacitors. So i use the one which you mark for GROUND on IC that is PIN1 then i got readings below

U11 -- Pin2 : 0.76, Pin3 : 1.66,
U12 -- Pin2 : 0.63, Pin3 : 1.53,

[ben7]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

I don't know which one is the Electrolyte Capacitors. So i use the one which you mark for GROUND on IC that is PIN1 then i got readings below

U11 -- Pin2 : 0.76, Pin3 : 1.66,
U12 -- Pin2 : 0.63, Pin3 : 1.53,

The electrolytic capacitors are the cylindrical things with a shiny metal top. They have a strip on one side, that is the negative side. The pin on the bottom which is closer to the stripe is the negative pin.

[tester2]

Re: My ATA PAP2T-NA Adapter Bricked, I want to fix

When i touch Black Probe on Electrolyte Capacitor of Negative Pin then Red probe on IC Pins

U11 -- Pin2 : 1.71, Pin3 : 2.60,
U12 -- Pin2 : 0.95, Pin3 : 1.84,