Tpu Carriage Unit Outline - Epson Perfection V700 Photo Service Manual

EPSON Perfection V700 Photo

2.1.2 TPU Carriage Unit Outline

The TPU Carriage Unit consists of TPU Inverter Board, Lamps (light
source), SUB_C Board, and SUB_D Board.
See Figure 2-3.
Lamps
SUB_C Board SUB_D Board
LED
TPU Inverter Board
Figure 2-3. TPU Carriage Unit Configuration
Operating Principles
Inverter Board converts DC to AC and boosts the voltage to generate
the current necessary to power the Lamps.
Lamps used as the primary light source are white cool-cathode
fluorescent lamps. If the light output becomes unstable, the Panel LED
flashes and the scanner enters standby mode until it becomes stable.
SUB_C Board and SUB_D Board each contain LEDs to generate
infrared light.
LEDs
Rear
Front
Engine Operation Outline
Revision A
21