Thanks for the suggestions, I didn't understand what the replacement of the electronic switch consists of, being an electronic technician myself I can try the repair.
Hi riccoricco,
you can download the S950 Service Manual here:
>>>
https://psrtutorial.com/lessons/workshops/ServiceManuals.htmlThere you will find all needed technical information.
The Power Switch (Soft Switch "SW1") is on the "
PNM" circuit board (page 138).
This switch is connected via the "
SPSI" wire (Pin 8 of the connector "CN2") to the
"POWER ON/OFF CONTROL" circuit (on the "
AJACK" circuit board on the page "PSR-S750/PSR-S950 AJACK, EMKS61A, HP, MK-H, MK-L, MOD, PB CIRCUIT DIAGRAM (
11/11)" (PDF-page 139).
You should also check the "POWER SUPPLY DC-DC CONVERTER" circuit (around IC902) on the page "PSR-S950 DM 006 CIRCUIT DIAGRAM (
9/11)" (PDF-page 137).
On page 76 you can find a description of the DM board TEST POINTS, if needed.
First of all, I recommend to check the external Power Adapter (under load), to be sure that it delivers the correct voltage of 16V DC.
Hope this helps,
Chris