Power Supply Board (C137 Psb/Pse Board); Control Panel (C137 Pnl Board); Figure 1-10. C137 Psb/Pse Component Layout; Figure 1-11. C137 Pnl Board Component Layout - Epson 4003353 Service Manual

Stylus Color Service Manual

1.5.2 Power Supply Board (C137 PSB/PSE Board)

Power Supply Board (C137 PSB/PSE Board) consists of an RCC switching regulator circuit.
The
This board is equipped with a power switch comected to the secondary circuit. Thus, if the printer
is turned off, it can continue to operate in order to eject the paper and perform the head capping
operation. The power on/off signal is always monitored by the E05A96 gate array on the C137
MAIN Board, and the logic system recognizes the power switch status.
CN2 ,

Figure 1-10. C137 PSB/PSE Component Layout

1.5.3 Control Panel (C137 PNL Board)

The 14 LEDs on this board indicate the error status (there is no buzzer system); by using the
6 switches in combination with one another, the printer can operate in each protect operation (color
or black cleaning, cartridge exchanging self-test, default setting value exchanging, reset, and
LED14

Figure 1-11. C137 PNL Board Component Layout

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