Service manual

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(5) “Auto” key: to perform auto adjustment

(6) LED: It indicates the DPMS status of this LCD monitor; blue light means DPMS on (Normal

operating condition). Amber light means DPMS off (Power Saving).

A-3.) Power board diagram:

Fig.1

#1 EMI Filter

This circuit (fig. 2) is designed to inhibit electrical and magnetic interference for meeting FCC,

VDE, VCCI standard requirements.

L602

19MH

C601

0.22U M

TR601

NTC 5

2 1

C603

2200PF

C602

0.22U M

C604

2200PF

Fig. 2

EMI Filter

Rectifier

and filter

Isolation

power

transformer

Rectifier and

filter

PWM

controller

Switching element

Feedback

Isolation

Inverter

circuit

Rectifier and

filter

SW regulator