Overview - Epson Stylus 1500 Service Manual

Stylus 1500 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 of the troubleshooting process.
UNIT REPAIR OF THE
C172 P SB/P SE BO ARD
Figure 5-1. Troubleshooting Process Flowchart
Table 5-1. Motor Coil Resistance Test Points
Motor
Test Pin
Connector
Number
Number
Common pin: 5
CR Motor
Test pins:
(CN5)
1, 2, 3, 4
1 and 3 /
PF Motor
(CN6) 2 and 4
Rev.A
S TA R T
UNIT LEVEL TROUBLESHOOTING
UNIT REPAIR OF THE
C172 MAI N BOARD
ASS EMBLY AND AD JUSTMEN T
E N D
Test Method
(Set Meter to Ohms. Disconnect
Motor from Main Board and check it
with Printer Power Off.)
Place one lead on pin 5 and the other
lead on each of the 4 test pins to
check the two motor phases.
Place one lead on pin 1 (pin 2) and
the other lead on pin 3 (pin 4) each of
the test pins to check the two motor
phases.
Troubleshooting
UNIT REPAIR OF
M-4E60 MECHANISM
Meter Reading
5 7 %
(At 25 C, 77 F)
10 10 %
(At 25 C, 77 F)
5-1