Pitney Bowes DA50S Service Manual page 30

4 • Troubleshooting/Diagnostics
4.2 Main
Controller
Board
Diagnostics
✍
TIP: Device name
is unique to each
printer's main board.
Therefore, replacing
an existing main board
in the printer gives that
printer a new device
name.
4-4
Main Controller Board Voltage Checks
To help your troubleshooting, measure the voltages on the Main Controller
Board (with power applied) using a digital voltmeter (see tables below).
Table 4-1 Main Board Test Points With Voltage Ranges
Voltage With Where It Comes From/Going
Normal Range
1.5V ±5% Generated from main board
3.3V ±5% Generated from main board
5V ±5% Generated from main board
6.5V ±5% Input from power supply
12V ±5% Generated from main board (voltage occurs during
printing or when stopped)
15V ±5% Generated from main board (voltage occurs when
print heads are moving into maintenance station;
maintenance motor is running)
40V ±5% Input from power supply
16V ±1.5V Generated from main board (U20) for Transport Motor
13V ±1.5V Generated from main board (U24) for Shuttle Motor
Ground Ground for 3.3V measurement
Ground Ground for 1.5V measurement
Ground Ground for 12V, 15V, 40V measurement
Ground Ground for 5V, 6.5V measurement
SV61831 Rev. A DA50S/DA55S/DA70S/DA75S AddressRight™ Printers Service Manual
Location
TP32
TP31
TP54
TP57
TP56
TP56
TP55
U20, pin 1
U24, pin 9
TP29
TP30
TP52
TP53