JVC Model 200 - Manual (Page 43)

Chapter 2---System Description
/SEL_VIC #1 Input signal from RGB VIC board which is used to select
input video source from VIC #1.
/SEL_VIC #2 Similar to /SEL_VIC #1
/SEL_VIC #3 Similar to /SEL_VIC #1
Low Voltage Power Supply
INPUTS DESCRIPTION
+ 5.1 volts Power supply to digital components
+ 15 Volts Power supply to analog components
- 15 Volts Power supply to analog components
Model 200 Service Manual 2-29