CPD-G420S - Sony Monitor Service Manual (repair manual). Page 18

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CPD-G420S(E)
2-2
c) Beam Current Protector Circuit Check
1) Connect constant current source to a section between
T901 (FBT) qa pin and GND, and check that the
RASTER disappers when the specified current flows
to the qa pin.
[Specification]: 2.12 + 0.00/– 0.01 mA
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