Repair manual

2-15
THEORY OF OPERATION
Table 2-1. DC Power System (Con't)
Connector Output Voltage Function
J53 (Con't) +12V_A This dc output voltage powers the following
on the Monitor P.C. Board:
o Horizontal deflection circuit (Center,
width, and Linearity).
o CRT heater filament.
J51/J53 VCC (+5vdc) The dc output voltages via these connectors
supply +5 vdc to power the digital circuits
on the Logic Controller P.C. Board
(Sheets 1 - 7).