Acer AL1716 Servicehandleiding - Pagina 45

Blader online of download pdf Servicehandleiding voor {categorie_naam} Acer AL1716. Acer AL1716 47 pagina's. 43.2cm(17”) tft color lcd monitor
Ook voor Acer AL1716: Gebruikershandleiding (17 pagina's), Gebruikershandleiding (10 pagina's), Servicehandleiding (50 pagina's), Servicehandleiding (50 pagina's), Specificaties (2 pagina's), Servicehandleiding (40 pagina's), Snelstarthandleiding (1 pagina's), Gebruikershandleiding (11 pagina's), Gebruikershandleiding (20 pagina's), Snelstarthandleiding (1 pagina's)

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Main Board Power Supply

SOT-223

U701

+5V

NC/LT1117-18

C701

BL_ADJ(DC)

R31

0V ~ 3.3V

4.7K

0V ~ 5V

4.7K

BL_ADJ

R31

C32

P W M

N.C

D C

4K7

1uF

+12V

CN701

C706

C707

GND

0.1uF

100uF/25V

+12V

GND

+5V

3,4

+5V

GND

C710

CONN

C709

VCC5V

0.1uF

100uF/25V

R706 NC

Q701

Adj_BACKLIGHT

PMBS3904

R707

4.7K

1/16W

+3V3

+5V

R714

R716

R717

10K

1/16W

10K

1/16W

R723 51K

R725

Q706

on_Panel

4.7K

1/16W

PMBS3904

C718

0.1uF

+3V3

C703

C704

100uF/25V

C51

R32

R29

R33

1UF

4.7K

MMBT3904

+5V

R708

10K

1/16W

BL_ON

R710

BL_ADJ

+12V

GND

C711

+5V

R712

4.7K

1/16W

GND

0.1uF

Q703

PMBS3904

D704(SSM12L) Vf=0.38V and If=1A.

R701

So when system power on, the

1/16W

system loading is about 400mA

R705 4.7K

(3.3V is about 200mA and 1.8V is

1/16W

about 200mA), So D35 changed

from 1N4148(or BAT42) to

C708

SSM12L(schottky diode).

1uF

P.S: The 1N4148 Vf=0.7V~1V can't meet

LDO spec. The BAT42, Vf is OK but the

If=200mA(forward current) can not

meet current spec.

For RSDS and Panel VCC=12V

+3V3

VLCD

+5V

+3V3

R715

R721

R722

Q704

1/16W

AO3401L

1/16W

C715

on_Panel_12V

0.1uF

C717

R727

10uF/16V

10K

1/16W

+5V

R711

10K

1/16W

on_BACKLIGHT

3,4

+5V

+12V

VLCD_12V

R718

R729

R719

NC/10K

Q705

R724 51K

AO3401L

R726 NC/4K7

C716

Q707

0.1uF

PMBS3904

C720

C719

NC/0.1uF

NC/10uF/16V

D701

1N4148

Q702

D702

CHT2907

1N4148

C705

1uF/16V

R704

100

1/16W

+5V

PC5V

Recommond to used "Blue" parts circuit

for VCC1.8V if you want to suppoert DDC

3,4

+5V

PC5V

function when system power off

R732

R709

+5V

1/16W

D704

D703

TO-263

SMAL140

BAT54C

U702

VIN

VOUT

ADJ

C713

AIC1084-33PM

0.1uF

R720

12/21 MODIFY

+5V

+12V

R730

R731

1/16W

R728

Title

NC/4K7

Size

Document Number

Date:

Monday, May 09, 2005

VCTRL

R702

1/16W

VCC1.8

C702

VCC1.8

4.7uF/16V

R703

1/16W

VCC3.3

R713

C712

C714

100uF/25V

0.1uF

1/16W

TSUM16AK

Rev

POWER

Sheet