From: slavotinek@gmail.com   
      
   On 08.01.2023 12:56, Pertti Helander wrote:   
   > I shortened line power cord on pins 1-2 with piece of wire but no power on.   
   I checked with multimeter all pin values,   
   > pins 20-21 was 5V, but all others were 0-0,1V so I guess PSU is broken. When   
   I after ten years in storage first time started my 8595 it powers on with some   
   checkpoint displays but it after few second went power off and never startet   
   again. PSU is    
   Schrack model EPO71119-E, input 200-20V 4.0A output 329W.   
   > Is it difficult to check and repair or renew? Or must I look for spare part   
   CPU?   
      
   Pertti, That doesn't make much sense.   
      
   By power cord you mean the connector that connects the PSU to the planar   
   I assume? If the PSU doesn't power on, there can't be any other voltages   
   than the pin 1 pull up voltage of ~5 V.   
      
   Are you sure you had the connector oriented correctly? It seems to me   
   that you were shorting out pins 20-21 (nothing when OFF, +5 V when ON)   
   and measuring pins 1-2 (PS-ON, which is floating at ~5 V when OFF, and   
   must be pulled down to turn the rest of the PSU ON).   
      
   Make sure you are working with the correct pins and try the procedure again.   
      
   I don't think I ever encountered a Schrack PSU in a Model 95. No clue   
   about it's internal construction. Is it really a single range 200-220 V   
   unit?   
      
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