IBM System/36 Maintenance Information Manual page 73

440 Base and Feature DC Voltage Tolerances
The base and feature DC voltages can be measured at the connector pins shown in section 435.
Voltage Minimum Maximum
+ 1.7 volts
+ 1.66 + 1.73
+ 5 volts +4.80 +5.25
-5 volts -4.60 -5.50
+ 12 volts + 11.20 + 12.60
See note.
-12 volts -10.90 -13.20
Note: The + 12 volts tolerances measured at P4 and P11
are minimum of + 11.52 volts and maximum of
+ 12.60 volts.
445 Maximum Ripple Voltage
The ripple voltage can be measured at the connector pins shown in the following tables:
A1 Board
Probe Ground
Connector Pin Connector Pin Maximum Ripple
PI 1 P2 1
200 millivolts
PI 2 P2 1 200 millivolts
PI 4 P2 1 200 millivolts
P2 4 P2 1 200 millivolts
P2 5 P2
2 200 millivolts
P2 6 P2 3 200 millivolts
P3 1 P3 6 30 millivolts
P3
2 P3 7 30 millivolts
P3 3
P3
8
30 millivolts
Section 4. Power Procedures
4-13