Acer V173 Service Manual download pdf (Page 6)

+5V output <150mv

13.5V-15.6V 1.4A(typ.),1.8A(max)

DC Output Voltage and Current

4.9V-5.3V 1.1A(typ.),1.4A(max)

Power consumption without Audio ≤35W

Protection See Table-1

Power management See Table-2

Notes: 1. Before each test, the buck capacitor need to be discharged.

2. Before each test, it must be 10 minutes at least after the latest test.

Table-1

Protection Condition Spec

SCP(short circuit protection) with auto-recovery function

OPP(Over power protection) nominal AC input

≧42W

Table-

Status H-sync V-sync Video Power LED

Power On on on active < 35W Blue

off on blanked < 2W Amber

on off blanked < 2W Amber

Power Saving

off off blanked < 2W Amber

Power Off -- -- -- < 1W Off

3.2 Backlight Power Supply

Items Specification

Panel

INL MT170EN01_VC,

Lamp

4 CCFL

Input Voltage 13.5V-15.6V

Input current

1.4A(typ.),1.8A(max)

On/Off switch level

5.5V≧Von≧ 2.0 V

-0.3v ≤ Voff ≤ 0.8 V

Brightness PWM duty

35%~100%

*PWM:High=3.3V(3.00~3.60V),Low=0.0V,Frequency=4.0*V-Freq(Hz)

CCFL operating Voltage

See Attached Table-2

CCFL Current

See Attached Table

-2

CCFL startup voltage

See Attached Table

-1

Operating frequency 40~60KHz

Protect delay time

>1 second

Efficiency 75% (with dummy load)

Table-1

No Load Voltage:

Item Symbol Min. Typ. Max. Unit Remark

No Load Voltage Vs

1700 --- --- Vrms INL MT170EN01_VC

Table-2

On Load Function:

Item Symbol Min. Typ. Max. Unit Remark

1 2 3 4 5 6 7 8 9 10 11 ... 61 62

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Acer V173 Service Manual Page 6

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