LEDs and Test Points

The following table lists and describes the LEDs and the test points. It also provides their position on the CJ718 powerboard

Table 7–1 LEDs and Test Points

LED	Position on the CJ718 Powerboard	Description
D48	3	+ 12 V
D51	3	+ 5 V
D41	17	Heating voltage
D65	15	12 V non-isolated
Test Points	Position on the CJ718 Powerboard	Description
PT10	15	+ 5 V non-isolated
PT11, PT12	16	H. Bridge control
PT13	5	kV return
PT14	14	kV ref
PT15	5	IHEAT return
PT16	17	VHEAT return
PT17	18	MA return
PT18	18	Relay R control
PT19	3	+ 12 V
PT20	3	+ 5 V
PT21	13	Vdac ref
PT22, PT23, PT24	12	I2C bus
PT25	21	Ground - 0 mA