Overview - Epson Stylus Pro Service Manual

Stylus Pro Service Manual

5.1 OVERVIEW

The printer may exhibit different symptoms for the same problem, which makes troubleshooting more
difficult. This section, however, provides simple and effective ways to facilitate troubleshooting. The
following flowchart illustrates the main steps in the troubleshooting process.
UNIT REPAIR OF
C137 PSB/PSE BOARD
Figure 5-1. Troubleshooting Process Flowchart
Table 5-1. Motor Coil Resistance Test Points
Motor Common
Connector Pin
Number Number
CR Motor
5
(CN6)
PF Motor
5
(CN7)
Rev.A
S TA R T
UNIT LEVEL TROUBLESHOOTING
UNIT REPAIR OF
C164 MAIN BOARD
A SS EMBL Y
A N D
A DJ U STMEN T
E N D
Test Pin (Set Meter to Ohms. Disconnect
Number Motor from Main Board and Check it
with Printer Power Off.)
Place one lead on pin 5 and the other
1, 2, 3, 4 lead on each of the 4 test pins to
check the two motor phases.
Place one lead on pin 5 and the other
1, 2, 3, 4 lead on each of the 4 test pins to
check the two motor phases.
UNIT REPAIR OF
M-4A11 Mechanism
Test Method
Troubleshooting
Meter Reading
10.0
10%(At 25 C,
77 F)
11.5
10%(At 25 C,
77 F)
5-1