Pw1 Circuit Description; Circuit Description - Epson PhotoPC3100Z Service Manual

PhotoPC 3100Z

2.2.3 PW1 Circuit Description

2.2.3.1 Circuit Description

OVERVIEW
The power circuit is mainly composed of the following blocks.
Switching controller (IC501)
Digital 5 V and analog system power output (T5001, Q5001)
Digital 2.5 V system power supply (Q5007)
Digital 3.35 V system power supply (Q5018)
LCD system power supply (Q5008, T5002)
Backlight power supply output (Q5013, T5003)
The figure below is the PW1 electric circuit block diagram.
Operating Principles
Figure 2-12. PW1 Circuit Block Diagram
Circuit
Revision A
50