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metsuki
25-03-2018, 06:28 PM
Hi everyone,

i finally have a new large place to work on the NSX, i can work on it at last

2 years ago i pulled out my ccu to check for caps leak and found minor traces. as everything work well i pulled everything back in and postpone the task.

i had a heater issue from about 6 month. no heat inside the car
today i pulled out for the second time my CCU just to find nothing had really changed. i changed all my caps anyway and hope my heater issue came from it. the plate was in very good shape and i just cleaned the traces with some alcohol. from what i can tell nothing had corroded the "rails" inside
this obviously did not solved my problem, and i still do not have any heat in the car.
the CCU diag give me an outside temp issue and air mix control motor issue.
my heater valve control cable do not move at all when i change the temp inside the car
when i disconect it from the control valve, i can move the control valve arm's and get hot air inside

everything else seems to work fine

here are all the pics from my CCU after cleaning and caps change
https://lh3.googleusercontent.com/KbayuHyQnsdj26b-XQzZOLzBY-32vIGch9y3Co1gzFibqLh7klxAdthhFHnZhrMHUtGcwNtLbWxB w8SeyfNjr9jpIwlRyV25XSy07ifkwICSnMoVRHoqrP3shMtsD6 UDLJamgTtzugA6i8Y_Sudbx4dgMZhPSiEc679cFqxPeYRJN231 t3vIFN4yc2rYNvz2Dyl0JceISOhxBi1EubWuFC4M3bbl9xSYCW sv1gT7nLidAsnDVZJAFfqj4AipJMy4yBcPT_Sl3K1sSV-gg828xol7Kf-ag7RMU_Hi_rH8mRWtB-HuHw3DVq96lwlCPUFGPrmVA2WONCTQmaIqvRlkE67tVCZC2K4i _SsQx3gE30q_zbdSfG7_FcqJE83BLZRIewafY1BFgLuIg-Ypy1TSiWA_7y-4yGsOYe3f6ANwOmHh_5zo0XlCQF9Rb1j145I3R1VsQZeT6sHFk m4EFUdNWF4p3GZ6UudxZGtL0j7BHDJ-vXf_5ho5HcdJuUMkWGKd2HgQSnb9eIcJLEpsVffk6AHbyngs5C kwsZiGiZP1H91W4imPdcSXKLBxtuGDeKlAnC2Ii-hQxhZZUsPH81yqp5Jv0RdwMy-JWyuKNWdk=w958-h719-no
https://lh3.googleusercontent.com/KwDdQ3nGa8tcIjZKxMu33gE7p0Cyd5O84c_wA1DIBr2k3OXwy-gkdv95oRANlae5HGlhSszmttFH-ahKmVxuWAW1CgjHAf58mRvJri3Bjvig5PjgG0W2qr0bOkwkUJi 7Sf-DWpH2D27He5z6ZDZMw-r1uy8K2YN9lHWKKaT5wUVnCayoyNB81uesHV7H_c4K9HQEAbtp Ac_o_4vJSd7woM0359QKTtsGx5ISdOhJjuL3azX0QDcHBkzpJ-kdkbne-e0pZ306cfeJTWQ3QxuAOJ0jZHt8_ufZPEFvVJt2YKLUYzLmYcG 8A16IAGBo940XwULgNr1I3QH7mKuWc031IJ0nM5VgQhbO2jc89 qprtccw8VAhP-tYsKIKyJomWJmE_xByoDN8DGX0BHj2SrCKSJvomNavG9fvX83n DgCni_mwAR5A1FSp5V70AdHqvDCpCGncsc0v0IR4aU-HZ7fDhl96L4cqPVJDgi-S7dZH-csc-10eTOrgUwbyUM6haURIiXO74iC9WIxTFaAXi-_iPV9SBErAKQdWsJRs0J6V4fsd-WBQmgHlf9Sr3c4WWVUq0hXX0iB7elIveVBNtphkIyaL3nQ6gpe 94HqfTKmw=w958-h719-no
https://lh3.googleusercontent.com/RNP6beaGDLU5R32oh--GZOr6eJjcyY18vzKsOs1ffaHbZyTERNtlBBEZNW1e3Wx0xnzL2 VBaMkrMmhS62tFJvIHNCqgsA48wC43J1xIzJ5xfbZ2Uj32tkii 8-P3UWEW_jHDbJokFy5jViuUwf_-AtO_5SOOBa6N39RHcbg255TYTAtvExBAoECZcoBJL0xJ7qDWss T6eK6rDDu2NDu_1KQXUQE10UA9_9NfOkUWl0SQ9tXuONP9y_o9 tJf3C_4ps-vMnIX9l7BglZQFtwCmBNh-ehyyT1hFIhP6Z2hnT7q5E2vmcrkE69tkxwpPharp6dL-N_uH8oad3U_SHeq8dGGPeljmeluvXhWkXG4ERsucfg9zNtY2Kf dYsDR6Zareskrt9f8mQvjhHBE6AnRC5VEy9isjx3KIdMKh6r-a5Kjwr4CrAlOokOsJZbDQnnfrT8ofElIz9npDdDPSom3XsHjUy Uose_ut1hfmUQGHy1FTC5E5oe8JOUSHwyNzU7imOIGLx-S-EpiL5x3WEkkd5OYLBEHhzIClxOg3OsvLzN8-9zhDwWeW_Ja1bOkQ31xOCuXgMbNbGEfucsyvak37KAq4CSjTI2 VRjOBijEwII=w958-h719-no






https://lh3.googleusercontent.com/5i73jGMwqcH_JKqMGourWpR_nouX_i_3QmIGeh714L7PGNHILG m83P1bDyck7VCZuoHhcmncKGQ9Ipf-pQURzFn5ig_1xfMwX1UKy0vhb9Vl157XnNjxIZ1MTEieZDYVo1 InU3KJIhZywfpOxlG5lIlZ3kHalAX6Of0WJgIKgyeOUmUrEB_G QV4tYFwbEw6nb17CTVQMOTPflWsiHyLbCkvbX5QEAibUgDJ3nT wsjBtrmJjjd0AuXcDrfR4C74a2_0ym_fT44k6WX0xk2TOYhTeD _luzmwIPUJehcCRNwkHIZorajONMddOBQnQXduN4Uuy83kLk6-FyKKahW8D2b9VwkNOjpXzVUaMP1Fd7UCfH9FfgOf478HmBazCl v7xIWy7GURPp-Iw7yY8ZSwnlxfSIODw9h0jhdYM_w8KEPfAsBa-oOVuWBx0L5oW2zAXr5uGBq3vr8lVAR3NbejaPOVoaSuxCfSGIj F3iggaCUZkLSPu9fR3lj23HYKY0jTN65ZFTn9x96JW67RLUEIm 9DA5PGbo-hDAY8goJYw7VHI--3U9YVUNf4Yo_Z13A3G7c9IUsSdwW7CPnws5YnvjFm3EMH2ek1K J_j8mN3pKx=w958-h719-no

what caps are involved in moving the heater valve?
Can i check something on the board with a multimeter to be sure i made a good job changing my caps?



subsidiaries questions, why all those connector in the footwell area are not connected in my car (i already know the blue one is for diag)?


all the pics here https://photos.app.goo.gl/NvEDEb4ak4XOuSDu1

many thanks

Pride
25-03-2018, 06:48 PM
To be totally truthful you are much better off to organise giving it to Kaz because I also thought many years ago that there was nothing wrong with my CCU board only for Kaz to replace leaking and faulty components which for the life of me I couldn't spot.

He then gave it a thorough test and a clean bill of health and bingo, and it's been working perfectly in my dash since.

It didn't cost the earth to do either you'll be pleased to know, certainly compared to the price of a new one at least.

goldnsx
25-03-2018, 07:30 PM
Did you repair the broken traces as well besides replacing the caps?

If you can hold of a second unit you could compare it to your unit.

metsuki
25-03-2018, 08:29 PM
there was no sign of any corroded or broken tracks. no electrolyte had made his way under the surface of the board.

please look at the picture and tell me? i think it is in pretty good shape

it is nearly impossible to find another CCU for testing, thats why i try to figure it out by myself.
do you think of any ways to diag a bad track or something wrong on the board with a multimeter?

goldnsx
26-03-2018, 05:51 AM
I can't see the pictures.

metsuki
26-03-2018, 10:13 AM
it is strange as i can see it in the thread and in the google link i post on numerous computers

metsuki
27-03-2018, 07:18 AM
Hi everyone,

i finally have a new large place to work on the NSX, i can work on it at last

2 years ago i pulled out my ccu to check for caps leak and found minor traces. as everything work well i pulled everything back in and postpone the task.

i had a heater issue from about 6 month. no heat inside the car
today i pulled out for the second time my CCU just to find nothing had really changed. i changed all my caps anyway and hope my heater issue came from it. the plate was in very good shape and i just cleaned the traces with some alcohol. from what i can tell nothing had corroded the "rails" inside
this obviously did not solved my problem, and i still do not have any heat in the car.
the CCU diag give me an outside temp issue and air mix control motor issue.
my heater valve control cable do not move at all when i change the temp inside the car
when i disconect it from the control valve, i can move the control valve arm's and get hot air inside

everything else seems to work fine

here are all the pics from my CCU after cleaning and caps change

https://lh3.googleusercontent.com/KbayuHyQnsdj26b-XQzZOLzBY-32vIGch9y3Co1gzFibqLh7klxAdthhFHnZhrMHUtGcwNtLbWxB w8SeyfNjr9jpIwlRyV25XSy07ifkwICSnMoVRHoqrP3shMtsD6 UDLJamgTtzugA6i8Y_Sudbx4dgMZhPSiEc679cFqxPeYRJN231 t3vIFN4yc2rYNvz2Dyl0JceISOhxBi1EubWuFC4M3bbl9xSYCW sv1gT7nLidAsnDVZJAFfqj4AipJMy4yBcPT_Sl3K1sSV-gg828xol7Kf-ag7RMU_Hi_rH8mRWtB-HuHw3DVq96lwlCPUFGPrmVA2WONCTQmaIqvRlkE67tVCZC2K4i _SsQx3gE30q_zbdSfG7_FcqJE83BLZRIewafY1BFgLuIg-Ypy1TSiWA_7y-4yGsOYe3f6ANwOmHh_5zo0XlCQF9Rb1j145I3R1VsQZeT6sHFk m4EFUdNWF4p3GZ6UudxZGtL0j7BHDJ-vXf_5ho5HcdJuUMkWGKd2HgQSnb9eIcJLEpsVffk6AHbyngs5C kwsZiGiZP1H91W4imPdcSXKLBxtuGDeKlAnC2Ii-hQxhZZUsPH81yqp5Jv0RdwMy-JWyuKNWdk=w958-h719-no

https://lh3.googleusercontent.com/KwDdQ3nGa8tcIjZKxMu33gE7p0Cyd5O84c_wA1DIBr2k3OXwy-gkdv95oRANlae5HGlhSszmttFH-ahKmVxuWAW1CgjHAf58mRvJri3Bjvig5PjgG0W2qr0bOkwkUJi 7Sf-DWpH2D27He5z6ZDZMw-r1uy8K2YN9lHWKKaT5wUVnCayoyNB81uesHV7H_c4K9HQEAbtp Ac_o_4vJSd7woM0359QKTtsGx5ISdOhJjuL3azX0QDcHBkzpJ-kdkbne-e0pZ306cfeJTWQ3QxuAOJ0jZHt8_ufZPEFvVJt2YKLUYzLmYcG 8A16IAGBo940XwULgNr1I3QH7mKuWc031IJ0nM5VgQhbO2jc89 qprtccw8VAhP-tYsKIKyJomWJmE_xByoDN8DGX0BHj2SrCKSJvomNavG9fvX83n DgCni_mwAR5A1FSp5V70AdHqvDCpCGncsc0v0IR4aU-HZ7fDhl96L4cqPVJDgi-S7dZH-csc-10eTOrgUwbyUM6haURIiXO74iC9WIxTFaAXi-_iPV9SBErAKQdWsJRs0J6V4fsd-WBQmgHlf9Sr3c4WWVUq0hXX0iB7elIveVBNtphkIyaL3nQ6gpe 94HqfTKmw=w958-h719-no

https://lh3.googleusercontent.com/RNP6beaGDLU5R32oh--GZOr6eJjcyY18vzKsOs1ffaHbZyTERNtlBBEZNW1e3Wx0xnzL2 VBaMkrMmhS62tFJvIHNCqgsA48wC43J1xIzJ5xfbZ2Uj32tkii 8-P3UWEW_jHDbJokFy5jViuUwf_-AtO_5SOOBa6N39RHcbg255TYTAtvExBAoECZcoBJL0xJ7qDWss T6eK6rDDu2NDu_1KQXUQE10UA9_9NfOkUWl0SQ9tXuONP9y_o9 tJf3C_4ps-vMnIX9l7BglZQFtwCmBNh-ehyyT1hFIhP6Z2hnT7q5E2vmcrkE69tkxwpPharp6dL-N_uH8oad3U_SHeq8dGGPeljmeluvXhWkXG4ERsucfg9zNtY2Kf dYsDR6Zareskrt9f8mQvjhHBE6AnRC5VEy9isjx3KIdMKh6r-a5Kjwr4CrAlOokOsJZbDQnnfrT8ofElIz9npDdDPSom3XsHjUy Uose_ut1hfmUQGHy1FTC5E5oe8JOUSHwyNzU7imOIGLx-S-EpiL5x3WEkkd5OYLBEHhzIClxOg3OsvLzN8-9zhDwWeW_Ja1bOkQ31xOCuXgMbNbGEfucsyvak37KAq4CSjTI2 VRjOBijEwII=w958-h719-no

https://lh3.googleusercontent.com/5i73jGMwqcH_JKqMGourWpR_nouX_i_3QmIGeh714L7PGNHILG m83P1bDyck7VCZuoHhcmncKGQ9Ipf-pQURzFn5ig_1xfMwX1UKy0vhb9Vl157XnNjxIZ1MTEieZDYVo1 InU3KJIhZywfpOxlG5lIlZ3kHalAX6Of0WJgIKgyeOUmUrEB_G QV4tYFwbEw6nb17CTVQMOTPflWsiHyLbCkvbX5QEAibUgDJ3nT wsjBtrmJjjd0AuXcDrfR4C74a2_0ym_fT44k6WX0xk2TOYhTeD _luzmwIPUJehcCRNwkHIZorajONMddOBQnQXduN4Uuy83kLk6-FyKKahW8D2b9VwkNOjpXzVUaMP1Fd7UCfH9FfgOf478HmBazCl v7xIWy7GURPp-Iw7yY8ZSwnlxfSIODw9h0jhdYM_w8KEPfAsBa-oOVuWBx0L5oW2zAXr5uGBq3vr8lVAR3NbejaPOVoaSuxCfSGIj F3iggaCUZkLSPu9fR3lj23HYKY0jTN65ZFTn9x96JW67RLUEIm 9DA5PGbo-hDAY8goJYw7VHI--3U9YVUNf4Yo_Z13A3G7c9IUsSdwW7CPnws5YnvjFm3EMH2ek1K J_j8mN3pKx=w958-h719-no


what caps are involved in moving the heater valve?
Can i check something on the board with a multimeter to be sure i made a good job changing my caps?



subsidiaries questions, why all those connector in the footwell area are not connected in my car (i already know the blue one is for diag)?


all the pics here https://photos.app.goo.gl/NvEDEb4ak4XOuSDu1 (https://photos.app.goo.gl/NvEDEb4ak4XOuSDu1)

many thanks

idon't know why my post has been deleted

Kaz-kzukNA1
27-03-2018, 05:54 PM
Can't see your attached photo file but I did manage to visit your Google Photo album.

When pasting the link from Photo, you need to open it, right click while keeping your pointer on the image, select 'copy image location' and then paste it inside the image control window or the BB code paste here

Please do not use the 'share' feature inside Photo to 'get link to the photo' feature as vBulletin requires the direct link and not hosted link method.
This is the reason why we can't see your photo.
You can see it because you are very likely to be logged into Google or your browser setting is keeping your login info cached.


I don't know whether all these photos were taken after you serviced the board or not but if you are saying that your circuit board is in good shape, I'm afraid you are better off sending it to someone who knows what they are doing.

There were so many shadows and reflections in your photo so not easy to tell but even under these poor condition, I can see big issues at several places on your board.

Because of this, there are so many possibilities for the cause of your issue so can't really recommend specific thing.
All I can say is to strip off all these heavily corroded section and check GND pad, tracks, etc to find the missing continuity.
You also need to check each components as some of them could be dead.
For your reference, when it comes to CCU board repair, replacing the capacitors is probably less than 10% of the total time required.
Majority of the time is being spent on other areas.


As for your question of all these connectors…
They are for the optional OEM keyless entry system with the interface to the OEM security system, ABS diag, SCS, etc.
I won't go into detail for the obvious reason.


Your original thread was deleted by you.
Probably you clicked on the wrong button???

As you are the OP and own the thread, you can edit, delete (but only in 'soft' mode) it.
Even if you delete it, it's only 'soft deleted' and the actual thread is still held on the server.
'Soft' deleted means that it's hidden from the public view but the actual thread is still there and can only be seen by those who has the right permission such as the administrator, etc.


If you want, the Admin can re-instate your original thread (I think I saw several replies from other members???) and merge my reply (this one) to it as well.


Kaz

metsuki
28-03-2018, 04:40 PM
Thank you Kaz for the time you take to help me.

the only reason i did not send you this board was because i thought it was not in bad shape and i did not want to send it overseas if it was not necessary. my bad, i was wrong

as for the board shape, all the smuges you see on the back of the board are higly amplified by the light, this is just the heat of the iron on the laquer layer, it is not deep at all and definetly not touching the tracks.
on the front, i had 3 capacitor small leak. very easy to clean, it did not enter the board at all. i really do not see any rust on the board

you are right saying any other components could have gone bad, i can't tell.

I'll be glad to send you more pictures of the board if you need it before sending it

thanks thanks thanks

Kaz-kzukNA1
28-03-2018, 06:14 PM
Hi, metsuki.

I also prefer not to send the board outside of UK as the package could go missing and CCU board is such an expensive parts.
Even within UK, I always return it to the owner with max insurance of upto GBP2,500 using Special Delivery service.
Normally, if you use international standard delivery, there will be almost none or just GBP50 insurance unless you pay for the expensive extra insurance.

Since you already started, please keep trying.








https://lh3.googleusercontent.com/hxAiQyqU4PLlc1i6cwPgHxfoXw7P2e4GeU6YqiruwdlJQjSkoS OxA3iAjt7OuN4fq6H-YOfmvyo6GwOjSTEcFYswzkQOR72BU6zP-Ot01Y4J8aIM-p9yJpGjx_26k7OQi-SoGvZn3B31nOQQkIv8Yw69owDTuGyLDECj7ZzmiMRjJOdB7Pqh ddzWD7a7tm8MZn83BosEhCg1hxpszR54gKHD6SxMoyTJlTRRsv aLlhuNDv0LU0vrbwImlHO3bh2DcN3IRlIXZpyNI2V5Tdxqb2nU 4nD6zRviyl5Z5l3GWKRZnnY3XqlsfDFOQQXVmWn47wg4vt7Sgj rr4so9LQEGWvjDddipuyUV6bF-Wi_O29hBy77Wqp9HVewAFLYBnpIFXKqft9xWyi216ca21Zu5Xb ciYzSJUWisPLyCKPghJPG_Xoc0Ei3_Ar3eGdXjrCnwpj6-e-H2IEt9xCfskM6goIw9rrEzl-DkKWxa33eQ4-F6nT91MnXazNkHvWmRBUIClnZLOEd_zRVxuH3PBz1Wb1XmIWJI 9peFRZvdVegEFXADs7FadPVPUubsETkBeo5UfpVEbdQp3bZSyZ jgWontvCBpeQcNQFoy7xTG1HSG=w1049-h943-no

https://lh3.googleusercontent.com/h3_vdI3nhfD0l3ntqgxdNbp0ZKOKwDc8bbkvgFQQdAJp0dl1Uq bLwuOaB-k8Z6McJLQQIkbW4l6U9AVP2zNHPhfRsMFK__N_zmffUCEmEXSO LNH-QGYag7Nmu2_k7KlMG7hsd7fa6NQEq0d_gwy2cPBpYOZkHbJWAe KM-anB7GfllW1inNjlfRTA2glSUZfQb7GRwdQcgTO0cj69YsAuTqu OpD3KYOgOqqNWdBs4ZGwLTJb2GXsjOZreMvW5kCFkJRteTmoKN ErijUCdvcYJjR8UVQ6RIaQ8QuxUDM8Sox80W1PJNBDTYhH9OGP LHIUDvghjWO_qF-RE5UQhdIuTWuZxAc6AxMr9GOuxOo452S2V45eWDXi1xOzc_th1 RO2SYKbWJuEegLksvdMe38mr37MOv3mRDRgD6s1CRkMpSrTmBM XA2nTOygBKNI_7V6qSV8dh3PhXNPkdKi49t52vgsCyMT4QV7f3 gG5VCft_yrVQUDL6kWbKW9Fy3hTnZfwpugjaprUy2NNGA2uByK DB_O0wiGieG6THXLY6jgV2rufdFznaCaMMF8l-5ZnNqDKZSYT4Pd2hLkUFlafnLZEpiXmxE3waWlKTv6bGmz5W=w 1080-h732-no
As mentioned, your photo was not ideal but even so, you can see the huge issues.

These photos are just a small section of your issues and you have many of them.....

Yellow arrow section means that you must strip off all the silk-markings (green, white bits) and expose the cupper surface.

Then, inspect each pads, tracks, etc.

Also, please check all the diodes, Tr, etc for any short circuits.

Blue arrows are pointing the suspicious marking but couldn't tell from your photo.




Your other photo showed suspicious trace around C10, C11, C14, C15, C22, C24, C32 but not clear enough.

The area C19 looked to be fine but please check.

Basically, from your photo, I think only the area around C17 looked to be fine.

My biggest concern is that the acid looked to be already reached some of the terminals of IC2.

The 4 x IC with big heat sink near C22, 24 and 32 are the motor driver IC so please pay extra attention to the tracks and pads around these three capacitors.








https://lh3.googleusercontent.com/AhWw6aOQgnqGCpj5Ol8k9GtuIqticT7h_lnnZAyjsgBbwaOxbt KWblyFthY5Kl_vexFM-i7th2IED8WuXSr1OL_VsbLgnQG1PwF5eQIBhDIjkgvpqMWE6Fe K7CQ5fy7XTJsDO0QXEPP3y-BGiKzIHA3wCaO0TOkb_Gm8FUNJdEq8dBfnXBXJZNnGrmdd2_ON-XNGTMTYzAO5O4XQAhaXQct3qKdaN9g8dJhhsl_ZQMCpJ1-Th6FHLfRSocvWs6iqDcHbf5Fwzk6gLimVewDF6yRopbPJS-RUSm0fv8LPBQU578c3WgYE6SUBOMOSvII9SMtTMNww6x1BGzkt JbSVJftKQWafzce3Y1JEBaVGJ8h8BZKD-u9i6BOZcB0U705BlU4XnPc6oVbuPLZodN8gZeaE_jFxeBsBva0 9XeaW69qLTs15OgNiu0JVhOrRHaqciqT6pvYjDho_AxiajxEsC t4LkG6nnJ_pdTKifd586Sdl2PACuoDnFZkmfYurqxGyfzUmqHB po-XvFg-JLv0GfovlA_BT197qRcZMVLQ6_2GQw6WvyIJl9wz9kk5gybARL g_jvdmBzwNN-3DuFFcLP89xMzo9N_Z8-r68cdNoJjT1pI7t7-6nxWH7lDt2mUSwK6oZwnTNkumV8XviKcjNpi36pzK1zteiyg=w 1080-h608-no
This is one of the circuit board I serviced in the past and would like to show how far you need to strip off the coating.

Basically, unless you remove all the contamination to this level to expose the copper plating, you won't be able to visually inspect the board.

And this is just the beginning and not even the cleaning process carried out so long way to go....


Good luck.

Kaz

metsuki
30-03-2018, 07:12 PM
Ok kaz , now i understand...
i thought that the dark area in the board was just some kind of miscolored laquer. i did not understand that the board was different on each side

even if i love DIY for many things, i am not an electronic specialist at all.
do you really think i can do this job without shooting the board altogether?

i am a bit too "risk taker" if you know what i mean, so if you tell me "try it" i will try. (i really don't know if i have the skills needed)

can this do the trick to strip the board?
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQxsryD3VUVSziulseG7WXpRfllaMg5J O8VWxOFguK5N07Il_rHjQ

goldnsx
30-03-2018, 07:21 PM
depends on the grit...

Pride
30-03-2018, 08:00 PM
Ok kaz , now i understand...
i thought that the dark area in the board was just some kind of miscolored laquer. i did not understand that the board was different on each side

even if i love DIY for many things, i am not an electronic specialist at all.
do you really think i can do this job without shooting the board altogether?

i am a bit too "risk taker" if you know what i mean, so if you tell me "try it" i will try. (i really don't know if i have the skills needed)

can this do the trick to strip the board?
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQxsryD3VUVSziulseG7WXpRfllaMg5J O8VWxOFguK5N07Il_rHjQ

Why chance it, just post it.

metsuki
08-04-2018, 10:08 AM
yesterday i began the work can you help on what to do next
i just did it with a very light sandpaper and it was enough

here C44

https://lh3.googleusercontent.com/g0UnRw8gZVc5UwGKKtvaFoa-MMP0gxKaO2lZDOH9R-4k9g-HJBTHCkpFmPm1NpJU8qgeFBAw0_izUpgL7onYoZac2rxCiq97d 7oBpppT7o_rGNm0-oLAKFaaAAsEqNb_6VOHmHZETa3sayNf6jvOXehjl-Rl3xvTyGBGjz4cqzotIKh_Kehzq0qQwozAm3dKcTCvzLv51d2s qfh4JsKC6YC8e4driZtzzCej8eh0-5ObbUhlchOFF4Ht6e5ACIcIE6LTDSKLf7gPUwvUJVVoAFIQYOG mp-i7rOOO7-LVqF7WZxLFZp5fBQ0clvhz4Z7oWvW2bVi9Dx9b0VFnjnKW8oBl VSKTE9BFLF_eAP4vp9Z09sC8tLI3iBw9NZqmEcoZWxFBsPFuXa OsCTdD_Ln6r0Xm6Tx2aNDam7arQOyfmc6QSLaGexAcEPwc9ym_ 0VEaqoXVhRdBcV2NDREnkM6BjzR8nmro4_JaoW01wXYVW8TJQl 3cirRoAthNUEpE6YH6k5AKA6tVo03EZHznz6ED2W2CfytKfgJ5 DKbOAmv3odKHigkwXVPL1TX3-tszYooZxIQEFU_rBLmVcYQ16K9jCknPZW2yP-CBpul8pEq3h7F_hsH1NpgeGvEy2JkSC_tbd94Vq0PGkQLChtE_ AasmO3P1RFoRYyCsBg=w728-h970-no
https://lh3.googleusercontent.com/yhZ-MLgKpXxauEVeLunB3132sEc1cCe4YET-pFxBBXs9-eacQKokkGSFGXdP7KtwoPBWi2EPSyoytOLVDp-G7ehwyfBNn3FJHCoppWy31lglYWSZji5prLHSgOip6LFoKkgDT nLWY8Xw8LFZd541vxd6OHeoaQU4BqH7kJhiRe12lhlJZW1ujLt mOOIb2WN4bB4WnjfHzkNWVYQSIsk3gdYzsWxlrf_n03ShQpiLN 2zdg02Cd_OjXL9cZDjmjLQXf--j69Ly1jUY6XG2-13NYobusaghDmQ_TxhTI47-k2WaSCxbuDYep0eRqNXrl6KZp7aNGHWegv5FRLigXnBJ5FZwMX mbvu4l3aHHxhlKN_5ROGWWYXyeKITe79G5p9qZl2-mGYihaSCcLwBSk1ALEfA6EaTZR7TUEKYCt6zsxaklzx2R5e1Ob uXZZLai2PC0uRV17RuwOwjX2EeXvTMcjBnFg1tfcjnUoIDYnFg ClTmrUw7AZsWzqJvtMa-eZOa41zIQCVF-sLM3nRS0ecK0l8Rxg0vWTp7gQtMee7CZXuoIlIdfiyk0PHf_Pf nbj14N8jr7wmlQnb0BoH9kuEF9xEJjN5wuU4HUQPg4tD1peqsn dEV8ugKUZXenZvQgYxZJ4KnrRKF7tICFQiN2_3oxKW8OrBPiFO HL_Q=w728-h970-no


What do i do next?
can i just weld the caps like this and the put a coating?


C14 look like this
https://lh3.googleusercontent.com/hsBH1bitgJNXzjaz4wH-50xlYJbuQ81uHy9-4PzxL2KXpLdansLX0hsekI4rvonUB2m46IyiuU4VnT427DUlUZ OdgljA3Hxp9SMTKnp1mAHDjis4BabOtmxaQcQlCwW9DCz9E3Fs 9jS-lEVXE0P0BV3MGS-NsR5J_yIjKvWrr1VlebHV5UfGNjCsUaqxwv-uTdL_b-a6sr2DeVEmGLukqaiB7hiP_haYFsy8hrnqeAcy6pTjZHip9_Bw ixx5kI8RV2PFyVfiwsjKr00LTaZoZXFPwTR6rjU_AUwXsOWOlC p7AzlEj9Nsaj-yaDS0dH0OTcYEsroM0-nLze9woCqfEB717bkuXf3aFbUIkCE2-7PTl8i9NJYUIWdk3TSNuc429db924P8VvQOyBNrYxGFRiwTEme BQ0fF81BcoBuVvfJTnTzdqsa4ndQK96vrg_IpmOTGniDgyFPtx Y2LMxE5KV3z3GTbpTM3e0TETq8zgV_k7-qTeeabninpNpjW15gxQf9aV_CkO2U3vzo8K2bqXsnQyHMsVM_p _SAVjStB4ZsMOJsnfPT7UQ74WyY0dEJaA3Q-i7Jck8kPS14MQbXV3dzFl7K-uR6Jy5eRNvVNmXtI_4p57ZAyDJSrr3PfiEcwH22pqJy_AW9loE xUy-W7w3xhd0YZjnbdBQ=w728-h970-no

here C22
https://lh3.googleusercontent.com/qZWCZ7i8fEIRCqA9v0J8Y5Bgu3juWtYow4-bAv_I0on3-Hakqo7elSYyFxC-5oSwzDctwGovnubAGQ76GtEzerxV5eQ5ihIsnIRLtyCZjZByvm FaSBTfMAhvsdgTASMdyjANJ4qHgi6dwpobhxSUNiR9ZDdORn5C rcDGe7PmnarMLJ3zUZSHR4Hpycm3rde5bMa18lEhq_YsKQV7j9 TyLY0zF-hkBGyePwcNxbNbiMstuB5tIfYuI5vVl0kxgk_-KckrI5haPPWKr1c4segGNPzQFYU5nYI3TmGr2Roa9QVKHd_ewC IlfQ8buqmsI6YrNzkVnms-_hjSezZFoTnIh4RVw5qpzkqEGAab-5sd90eY6stRMXEVVyQDf07ItofrUMycX6y91OmTFE1bEoWI0P0-ZAdrIGSWZDzBn4AOBqM9qQBoC654TEA-O47eQpBaMCJVBS0hiZ1EiODlgTXZc1od-EpvF6dsOkmcWmbOH4t65tQZ3z4AagDrGCsDtUxumyc_uDhgctF 6sw_Q9iUgH86cVq_uhGNC1FdeegUjV94-3xXs--MnyA408AI0PgUv0eO7dID-WmRizpbhWJFrPnx6aF7c6CWVczerDwGH=w690-h920-no

do i need to "recreate " the ring around the cross on the minus side?
same question for the dot on the plus side?

metsuki
12-04-2018, 07:51 AM
ok then,

you'll be happy to hear that everything went well. i scrapted everything i could and then try to do something as close as possible to what does KAZ. the track was not so corroded, i just had some lead on some weak points and put a wire on the backside to keep the continuity.
as far as i can tell, all the fonctions came back well in the car.
i will keep on checking for a week or two and then i want to protect everything with a coating.
What kind of coating do i have to use?

ps: and know, my radio do not give me any sound..... not one sound. everything light up and do as normal but i ear no sound even volume knob all the way up:(