Power Supply: P7000Hd, P7X08H, And P7220 - Printronix P7000 Series Maintenance Manual

Appendix A

Power Supply: P7000HD, P7X08H, and P7220

(Line Filter Area)
AC Input
J1
AC
AC Common
Chassis Ground
1
P1
2
3
LOAD
= FAST-ON TERMINAL
= RING TERMINAL
LOAD
GND
416
(Phase Driver Power)
PH1
1
2
3
PH2
4
5 PH3
6
7 PH4
8
LDFB
9
10
Chassis GND
(Phase Driver Control)
1 UD 1
2 UD 2
3
+2.5V reference
4
5
UD 3
6 UD 4
7
8 DIODE 1
DIODE 2
9
10
11
DIODE 3
12
DIODE 4
13
N COILTEST
14
OPTO RET
15
CABLE DET
16
17 HD SENSE
18
LDFB BUF
19
20
Controller GND
J2
1 NACFAIL (Not AC Fail)
2
NSTBY (Not Standby)
3
+5 Volts
4
+5 Volts
5
+5 Return / Logic GND
6
+5 Return / Logic GND
7
+48 / +8.5 Return
8
+48 / +8.5 Return
9
+8.5 Volts
10
+8.5 Volts
11
+48 Volts
12
+48 Volts