IBM CF Series manual Task - - Checking And Adjusting Voltages, +5 Volts, +12 Volts, +46 Volts

6.7 TASK - - CHECKING AND ADJUSTING VOLTAGES

Refer to the following tables for location and adjustment points of the various power supplies in the system.

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NOTE: The following conventions apply when interpreting these power supply voltage tables:

TB1-6	=	Terminal Block #1, Position #6
PS=	Power Supply
J22-1	=	Connector	#22 pin 1 on a PC board

From pin 4 to pin 1 means the positive lead of the meter connects to pin 4 and the negative lead to pin 1 (ground)

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Power usage:

•Multibus Card Cage: +5V, +12V, -12V

•Video Camera System: +5V, +12V, -12V

•Stepper Motor Drive: +5V, +46V (nominal)

• Lamp Power: +120V (nominal)

+5 Volts:

Check voltages at terminal block TB1 on power supply assembly.

From	To	Reading	Adjust_____
TB1-1	TB2	+5.08 to +5.10 VDC	VR1 on PS1
	Note: TB1-1 through TB1-4 are bussed together.

+12 Volts:

Check voltages at terminal block TB1 on power supply assembly.

From	To	Reading	Adjust________
TB1-5	TB2	+12.04 to +12.06 VDC	+V ADJ on PS2
	Note: TB1-5 through TB1-7 are bussed together.

-12 Volts:

Check voltages at terminal block TB1 on power supply assembly.

From	To	Reading	Adjust_______
TB1-8	TB2	-12.04 to -12.06 VDC	-V ADJ on PS2
	Note: TB1-8 through TB1-10 are bussed together.

+46 Volts: