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These voltages found on transistors on the HV PCB of a working monitor.  Voltages taken on a 19 inch monitor running Asteroids in attract mode.  Meter used was a Fluke 8010.  AC input 116 VAC.

I would expect normally operating monitors to show variations as much as 10 to 15 percent; the key is the ratios of voltages and being sure that the B-E differences in the transistors are correct.

DC readings on Q903 are undoubtedly skewed by the relatively high frequency of operation of this transistor and will vary from meter to meter.

 

PIN Q900 Q901 Q902 Q903
E 23.6 24.3 9.0 .02
B 24.3 24.8 9.6 -1.9
C 33.4 34.0 24.8 ~24