[time-nuts] Strange E3610A PSU - Old revision

cfo xnews3 at luna.dyndns.dk
Mon Jun 11 19:18:58 UTC 2012


I just bought a E3610A PSU on ebay , as defective.

Main problem right now is ... This seems to be an older revision

And has other comp values , than the "Schematic on the net"

Comp    Item		      - Org Value	      - Inserted 
value     
-----   -------------------     ---------------------   ----------------- 
R19     CC frontpanel Pot     - 10 turn 10k 	      - 1 turn 10K        
U2      12v Regulator         - MC7812CT              - LM340T12          
U4      Current OpAmp         - LF442CN               - LM1458N           
U5      CC/CV Indicator       - LM393CN               - LM393N            
U1      Voltage OpAmp         - LF411CN               - LM741EN           
U3      Volt Ref              - LM336-5.0 5.0v        - LM329 6.9v

PCB     PCB number            - ??                                        

C7	Pos. REF CAP          - 330uF 50v             - 330uF 50v         
C13	Neg. REF CAP          - 470uF 50v             - 330uF 50v         

I posted some pics here.
http://tinyurl.com/cn9p4s9


Does anyone have a schematic of a E3610A , that might have ie. LM1458 in 
it or a 6.9v Ref , instead of a 5v Ref ?

Tia
CFO Denmark





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