Nortel Networks 5000i manual +12V Boost Power Supply, Location of the Power Supplies

Logic Voltage Check-out Procedure{ XE "Adjustment:Multivolt logic power supplies" }

The outputs of the power supplies { XE "Power supplies, multivolt logic:Adjustment" } { XE "Power supplies, multivolt logic:Voltage checkout procedure" }{ XE "Logic power supplies" \t "See power supplies, multivolt logic" }are read at their most critical point—the input to the Camera Controller board, the Solenoid Clutch Activation board, and the Top LED Mother board.

1.Turn on the scanner power switch.

2.Use a DVM to measure { XE "Measurement:Multivolt logic power supply" }the outputs to the voltages { XE "Checkout:Logic voltages" }{ XE "Logic voltages" }{ XE "Voltage:Power supply, multivolt logic" }listed in Table 2-4. Be sure to connect your ground probe to TPG1, TPG2, TPG3, or TPG4 on the Camera Controller board.

Table 2- 4

Nominal	Camera	Solenoid Clutch	Top LED		Acceptable
	Controller Pin	Activation Board	Mother Board
Voltage					Range
	Location	(SCAB) Pin Location	Pin Location
+5V{ XE	J5 - 3				+4/95 to +5.20V DC
"Logic power
supply" \t
"See power
supply, +5V
logic" }
-15V	J5 - 1			-15.0 to -15.20V DC
+15V	J5 - 2			+15.0 to -15.20V DC
Ground	TPG1, TPG2, TPG3,
	TPG4
+12.5V		J9 - 4		+12.5 to +13V
+V Boost		J9 - 7		+12 to +16V
+5V			J3 - 1	+5 to +5.5V

+12V Boost Power Supply

There are no adjustments{ XE "Power supplies, multivolt logic:Voltage outside specified range" }{ XE "Power supplies, multivolt logic" \t "See Power supply, 15V logic" }{ XE "Power supplies, multivolt logic" \t "See Checkout procedures - logic voltages" } to the +12V, 200W boost power supply{ XE "Checkout:Power supply voltages" { XE "Power supply voltages" }}. If its output is not +12.5V{ XE "+12.5V power supply" \t "See Power supply, +15V" } to 16V{ XE "Power supply, +15V:No adjustments" }, replace the supply{ XE "Power supply:No field repair" }.

Location of the Power Supplies

Figures 2-1 and 2-2 illustrate the location of the power supplies { XE "Checkout:Multivolt logic power supply voltage" }{ XE "Multivolt logic power supply voltage" }and the location of

Page 16 5000i Scanner Installation Guide