SCP SCIENCE DigiPREP HP Service Manual

KeyPad service manual
Rev.1.1
24
4. Power Section
The power section is rectifying and regulating power for all different parts of the
KeyPad Controller. It is mainly composed of a transformer, a bridge diode and a
DC regulator.
D4
D5
D1
D2
AC
2200uF
5V
regulator
0.1uF
5V
1
2
3
+
FUSE
Figure 12: AC/DC converter
Ensure the voltage selector switch is at the correct position before powering the
controller (see Figure 2)
4.1 The controller is not functioning when power switch is on
o Ensure the power cord is fully inserted into its socket (see Figure 2)
o Unscrew the bottom plate and verify the fuse F1 (see figure 13 for
parts location)
 Replace by a 0.5A if necessary AWG 1 fuse (1/4x1¼)
o Verify all the power cables connections (see figure 12 for detail):
 Green wire connected with QD3
 Pin 3 of the power switch is connected to QD1
 Pin 4 of the power switch is connected to QD2

SCP SCIENCE DigiPREP HP Specifications

General

Brand	SCP SCIENCE
Model	DigiPREP HP
Category	Keypad
Language	English