Epson 440 User Manual Page 90

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  • TROUBLESHOOTING
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EPSON Stylus Color 440/640/740 Revision A
Chapter 3 Troubleshooting 90
(Continued)
The printer does
not operate at all.
+5V line is dead. IC51 (L4962E/FA3635P) is
dead.
Note:
L4962 is used for Stylus
Color 440/640.
FA3635P is used for
Stylus Color 740.
Stylus Color 440/640:
Check the oscillation
(Pin 5) waveform of
IC51.
(Pin 5)
Check the switching
(Pin 7) waveform of
IC51.
(Pin 7)
Replace IC51.
IC51 (L4962E/FA3635P) is
dead.
Note:
L4962 is used for Stylus
Color 440/640.
FA3635P is used for
Stylus Color 740.
Stylus Color 740:
Check the switching
(Pin 8) waveform of
IC51.
(Pin 8)
Replace IC51.
Table 3-5. Repair of the C206/C257 PSB/PSE Board
Symptom Condition Cause Checkpoint Solution
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