AOC E941SA, E941VA service manual Power part---5V/3.3V/1.8V

Page 19

Service Manual

Power part---5V/3.3V/1.8V

3,4,5 +5V

+5V

VCC3.3

 

 

 

 

 

 

 

 

 

C701

 

 

 

R702

 

 

 

 

 

100NF 25V

+5V

 

 

4K7 1/16W 5%

 

 

 

 

 

 

+5V

3,4,5

 

 

 

 

 

CN701

 

 

R703

100R 1/16W 5%

 

 

 

 

 

 

Adj_BACKLIGHT 5

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

C706

+

 

 

 

 

 

 

8

100NF 25V

 

 

VCC3.3

 

 

 

 

7

C705

 

 

 

 

 

 

6

 

 

100uF16V

 

 

 

 

 

5

DIM

 

 

 

 

 

 

 

 

4

ON/OFF

 

 

 

R704

 

 

 

 

3

 

 

 

 

10K 1/16W 5%

R799

 

 

2

 

 

 

 

10K 1/16W 5%

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONN

 

C707

C708

Q701

 

 

 

 

 

 

 

 

 

 

 

 

100NF 25V

 

 

 

R701

 

 

on_BACKLIGHT 5

 

 

 

 

NC

 

22K 1/16W 5%

 

 

 

 

 

2N3904S-RTK/PS

 

 

 

 

 

 

 

 

VCC3.3

 

 

 

 

 

 

 

 

 

 

 

 

Audio_EN1

 

 

 

 

 

 

 

 

 

 

 

 

 

R706

 

 

R708

 

C709

 

 

 

 

NC

 

R798

 

 

 

 

 

 

 

 

 

NC/0.1uF 25V

 

 

 

 

 

 

NC

NC

 

 

 

 

 

 

 

Q702

R709

 

 

 

 

 

 

VCC3.3

NC

NC

Audio_EN 5

 

 

 

 

 

 

 

 

R724

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC

 

 

 

 

 

R710

 

 

 

 

 

 

 

 

 

NC

 

 

 

 

 

Audio_DET1

R711

NC

 

Audio_DET2

R712

NC

 

Audio_DET 5

 

 

 

 

 

 

 

 

 

 

 

 

R713

 

 

 

 

 

 

Q703

 

NC

 

NC/PMBS3904

 

 

 

 

 

C714

 

 

 

 

NC/0.1uF 25V

+5V

 

 

 

 

 

 

 

 

R716

 

 

 

 

NC/10K 1/16W 5%

 

R717

R719

 

 

R720

NC

5 Panel_ON

 

 

 

 

 

NC

 

22K 1/16W 5%

 

 

 

 

R721

C717

Q707

 

 

4K7 1/16W 5%

 

 

PS_EN 5

NC/0.1uF 25V

NC/PMBS3904

R723

 

 

 

 

 

NC/4K7 1/16W 5%

 

 

 

 

R725

 

 

 

 

NC

<Variant Name>

 

 

 

 

 

 

 

 

 

 

AOCe941Series

+5V

 

U701

AP2114H-3.3TRG1

 

VCC3.3

 

 

 

FB701

 

 

 

 

 

 

 

3

VI

VO

2

 

VCC3.3 5

 

 

 

+

 

 

GND

4

 

0 OHM +-5% 1/8W

 

 

 

 

 

 

C703

 

 

 

 

 

C704

100NF 25V

 

 

 

 

C702

100NF 25V

 

 

1

4

 

100uF16V

U702

NC/G1084-33T43Uf

32

VIN VOUT

GND

TO-252

1

R707

 

 

 

 

 

 

 

4.7 OHM +-5% 2WS

 

 

AP2114H-1.8TRG1

 

 

 

 

U703

 

VCC1.8

 

 

 

 

 

 

3

VI

VO

2

 

VCC1.8 5

 

 

 

 

 

+

 

 

GND

 

+

 

C712

C713

 

4

C710

C711

 

 

 

100NF 25V

NC/100uF/16V

100NF 25V

 

 

 

100uF16V

 

 

 

 

1

4

 

 

 

 

 

 

U704

 

VLCD

 

 

 

 

 

1

 

 

 

 

 

 

 

GND

 

 

VLCD 6

 

+5V

3

 

VIN VOUT

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO252

 

 

 

 

 

 

R714

 

 

 

 

 

5 6 7 8

Q704

 

 

 

 

 

 

10K 1/16W 5%

 

 

 

 

 

D D D D

NC/AO4449 -7A/-30V

 

 

 

 

 

 

 

 

 

 

 

 

Q705

G S S S

 

 

R715

 

 

 

AO3401A

 

 

 

 

 

 

 

 

100K 1/16W 5%

 

 

 

 

4 3 2 1

+5V

Q706

 

C715

 

 

2N3904S-RTK/PS

R718

220N16V

 

 

NC

 

 

 

 

+

C716

R722

 

 

C718

 

 

10uF 50V

NC/10K 1/16W 5%

 

 

 

220N16V

 

 

 

 

T P V ( Top Victory Electronics Co . , Ltd. )

OEM MODEL

OTS

 

Size

B

絬 隔 瓜 絪 腹

G3737-M0D-000-0H4K-10-100125

TPV MODEL

DUAL

 

Rev

D

 

 

 

 

 

 

Key Component

POWER

PCB NAME

715G3737-M0D

称爹

<称爹>

Date

Monday , January 25, 2010

Sheet

7 of

7

 

 

19

Page 18 Page 20
Image 19
Page 18 Page 20
Contents AOC e941VA /e941SA /e941S LCD 显示器维修手册Revision List Contents USB HUB LCD SpecificationsProduct Features TTLWxga Factory preset modesXGA SxgaControl Buttons Operation instructionDCR OSD Lock Function OSD User mode adjustment+5VDC VGA 15pin ConnectorDVI Connector Interface descriptionUSB+ Audio in port General Specifications Electrical Absolute Ratings Panel FeatureElectrical Characteristics AOCe941Series Optical Specifications LED ConnectorLCD Block Diagram Block DiagramMainBoard Block Diagram 1e941VA---715G3737 SET 2e941SA---715G3225EMI IC-PWM MOSSoftware Flow Chart Software Flow ChartMain Board 1---715G3737-M01 Circuit SchematicDetvga DVI-input/DDC Power part---5V/3.3V/1.8V Scarlar---Flash/key Output---LVDS connector Bladj Blon Main Board 2---715G3225-1-2R101 TO252 AOCe941Series VSC 715G2892-P02---adapter 12V/5V Power BoardConverter Board----715G3918-P02 Phonejack Audio part 715G2892 P02Key Board 715G4007-K01 Explore Views AOCe941Series AOCe941Series MainBoard 1- 715G3737-M01 PCB LayoutAOCe941series Main Board 2---715G3225-1-2 AOCe941series PowerBoard 715G2892-P02 KeyBoard ---715G4007 Maintainability Requirement Maintenance Trouble treatmentTrouble Shooting Main Board---No Power Check flow chart For the no powerFor the no signal Check flow chartCheck flow chart No Backlight of panel Key Board---OSD no working Writing DDC program step AOCe941series AOCe941series Model：e941VA--T995NTNBWVK2PNJ BOM ListAC Socket Screw AD91603YY1SMTJ Power Board for SMTChoke Coil Choke by LI TARST Chipr 10KOHM +-1% 1/10W Yageo IC FAN6752MY SOP-8RST Chipr MAX 0R05 1/10W Fenghua RST Chipr 1KOHM +-1% 1/10W YageoTRA KTD1028 KEC AD91603YY1AIJ Power Board for AIEyelet IC AS431AZTR-E1 TO-92PIN Header 2.54MM 2P Jumper WireRectifier Diode FR107 LNPCA9361XYY1J Convertor BoardRST Chipr 1 OHM +-5% 1/10W Yageo RST Chip 1K 1/10W 5% Tzai YuanRST Chipr 10K OHM +-5% 1/10W Fenghua RST Chip 100K 1/10W 5% Tzai YuanRST Mofr 4.7 OHM +-5% 2WS Futaba Connector 9PConn 6PIN WaferRST Chip 100R 1/16W 5% Tzai Yuan RST Chipr 10 OHM +-5% 1/16W FenghuaRST Chip 10R 1/16W 5% Tzai Yuan RST Chipr 100 OHM +-5% 1/16W FenghuaRST Chip 10K 1/16W 5% Tzai Yuan RST Chipr 1KOHM +-5% 1/16W FenghuaRST Chip 1K 1/16W 5% Tzai Yuan RST Chipr 10KOHM +-5% 1/16W FenghuaRST Chipr 4.7KOHM +-5% 1/16W Fenghua Tzai YuanRST Chipr 470 OHM 5% 1/16W Fenghua RST Chip 470R 1/16W 5% Tzai YuanAOCe941series Chip Bead CAP Chip 4U7 10V X7RRLZ 5.6B Llds Dome Switch 5 PCS SMTKEPCAJA9Diode LBAV70LT1G SOT-23 LRC RLZ5.6BModel：e941SA--T995NSNCWVA1UNJ CBPC9NWA1QHJ Screw M3X6RST Chipr 1KOHM +-1% 1/8W Yageo RST Chipr 15KOHM +-1% 1/10W YageoCN901 006G R906 061G152M10452T XZ RST Chipr SMTC9NWA1QHJ Main Board for SMT SUB 15PINSOC Subd H 15P F SUB 15PIN Vertical Conn with ScrewRST Chipr 0 OHM +-5% 1/16W Yageo RST Chip 390R 1/16W 5% Fenghua RST Chipr 1KOHM +-5% 1/16W YageoRST Chipr 10KOHM +-5% 1/16W Yageo RST Chip 330R 1/16W 5% FenghuaRST Chipr 75OHM +-5% 1/16W Yageo RST Chipr 56KOHM 1/16W FenghuaRST Chipr 56KOHM 1/16W Tzai Yuan RST Chipr 75 OHM +-5% 1/16W FenghuaAOCe941series BAV70 SOT23 by PAN JIT X7RX5R OHM BeadJ44G9909101 Eps J44G9909201 J44G9909615 4A Model：e941S-- T9A2NS2DWVA4QNE AC Socket ST-01CP-BCE-R ADA1603HD1SMT Power Board for SMT LNPCA9401XHD1Main BOARD-CBPCANSA1H1 SMTCA-U402 PC123Y22FZOF SharpRST Chipr 1MOHM +-5% 1/4W Tzai Yuan ADA1603HD1AI Power Board for AIRST Chipr 10 Kohm +-1% 1/10W Fenghua RST Chipr MAXNO-SUGGEST RST Chipr 10KOHM +-5% 1/16W Y NO-SUGGEST RST Chipr MAX 0R05 OHM 1/16WNO-SUGGEST RST Chipr 100 OHM +-5% 1/16W NO-SUGGEST RST Chipr 1KOHM +-5% 1/16W YANO-SUGGEST RST Chipr 75OHM +-5% 1/16W YA NO-SUGGEST RST Chipr 330 OHM +-5% 1/16WKEY Board PCB Chip Bead 120OHM 6A MGLB2012-120T-LFMain Board PCB LED GPTD1210YGC3-HBRST Chip 120K 1/10W 5% Tzai Yuan Adapter Board PCBAC/DC Converter TA9690GN-A1-0-TR SOP-24 RST Chip 1R 1/10W 5% Tzai YuanSchottky B3100B 3A 100V SMB CAP ChipConverter Board PCB
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