Unit Repair Of Power Supply Board - Epson Stylus Color 640 Service Manual

Epson stylus color ink jet printer service manual
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EPSON Stylus Color 440/640/740

3.3 Unit Repair of Power Supply Board

Note:
The power supply board equipped with each printer is as follows:

S tylus Color 440: C206 PSB/PSE

Stylus Color 640: C206 PSB/PSE

Stylus Color 740: C257 PSB/PSE
This section describes the problems related to the power supply board.
The table below provides various symptoms, likely causes, and
checkpoints. The checkpoints refer to waveforms, resistance, and other
values to check to evaluate the operation of each component.
Chapter 3
Troubleshooting
Revision A
88

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This manual is also suitable for:

Stylus color 740Stylus color 460Stylus color 440

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