JVC 250 Service Manual page 77

Chapter 5---Electronics
IIC_CLK - IIC clock line
IIC_DATA - IIC data line
IIC_SINT - IIC interrupt
±15 V - input power from the Low Voltage Power Supply, for the analog
circuitry.
+5.1 V - input power from the Low Voltage Power Supply, for the digital
circuitry.
Figure 5-13 Horizontal/Vertical I/O Diagram.
5-22 Model 250 Service Manual