Its been a while since I was on this.
IF your power supply is working (sounds like it is) you could measure the zenors to see what voltage is there now.
The base of TR001 indicates the voltage on ZB-1-14 (I'd bet that is a 14V).
The base of TR002 indicates the voltage on ZB-1-25 (I'd bet that is a 25V).
The guess bets are based on the part number, the schematic doesn't show the voltage and I'm not good enough to know the proper voltage drops across the resistors from where the voltage is listed.
A quick cross reference search on the transistors gave me.
2SD223 -> KSC5603D (fairchild cross)
2SC632A -> 2M4401 (general cross)
2SC486 -> 2N1893 (general cross).
I DON'T KNOW IF THESE ARE RIGHT!
I usually try the onsemi site cross reference and the fairchild cross reference and the data sheet site. Sometimes I'll try the NTE cross.
http://www.datasheetarchive.com/
http://www.fairchildsemi.com/crossref/crossref.do;jsessionid=404E3280B16003B170AB841D80D103DB
http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search?OpenForm
Then I look through Mouser to see what is available.
AND DOUBLE CHECK THE SPECS.
IF your power supply is working (sounds like it is) you could measure the zenors to see what voltage is there now.
The base of TR001 indicates the voltage on ZB-1-14 (I'd bet that is a 14V).
The base of TR002 indicates the voltage on ZB-1-25 (I'd bet that is a 25V).
The guess bets are based on the part number, the schematic doesn't show the voltage and I'm not good enough to know the proper voltage drops across the resistors from where the voltage is listed.
A quick cross reference search on the transistors gave me.
2SD223 -> KSC5603D (fairchild cross)
2SC632A -> 2M4401 (general cross)
2SC486 -> 2N1893 (general cross).
I DON'T KNOW IF THESE ARE RIGHT!
I usually try the onsemi site cross reference and the fairchild cross reference and the data sheet site. Sometimes I'll try the NTE cross.
http://www.datasheetarchive.com/
http://www.fairchildsemi.com/crossref/crossref.do;jsessionid=404E3280B16003B170AB841D80D103DB
http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search?OpenForm
Then I look through Mouser to see what is available.
AND DOUBLE CHECK THE SPECS.