AOC 716Vwy Service Manual
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AOC 716Vwy Service Manual

17” lcd color monitor
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17" LCD Color Monitor
Service
Service
Service
Description
Table Of Contents......................................................1
Revision List........................................................2
Important Safety Notice............................................3
1.Monitor Specification...............................................4
2.LCD Monitor Description........................................5
3.Operation Instruction.................................................6
3.1.General Instructions.................................................6
3.2.Control Button......................................................6
3.3.Adjusting the Picture..........................................7
4.Input/Output Specification.......................................9
4.1.Input Signal Connector.........................................9
4.2 Power Supply Requirement..............................10
N
4.3.Factory Preset Display Modes.........................10
4.4.Panel Specification...............................................11
5.Block Diagram........................................................13
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

TABLE OF CONTENTS

Page Description
5.1.Software Flow Chart........................................13
5.2.Electrical Block Diagram...................................16
6.Schematic...........................................................17
6.1.Main Board........................................................17
6.2. Power Board.......................................................22
7.PCB Layout...........................................................25
7.1.Main Board.........................................................25
7.2.Power Board........................................................27
7.3Key Board..........................................................28
8.Maintainability........................................................29
8.2.Trouble Shooting.................................................30
10.Monitor Exploded View.....................................38
11.BOM List............................................................39
SAFETY NOTICE
1
AOC 716Vwy
T77HRTNQMWAC8N
Horizontal Frequency
55.5 kHz - 70.6 kHz
Page

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  • Page 1: Table Of Contents

    17” LCD Color Monitor AOC 716Vwy T77HRTNQMWAC8N Service Service Service Horizontal Frequency 55.5 kHz - 70.6 kHz TABLE OF CONTENTS Description Page Description Page Table Of Contents..……......…..1 5.1.Software Flow Chart……………………....13 Revision List.…........……..2 5.2.Electrical Block Diagram………………..…....16 Important Safety Notice.……......……..3 6.Schematic…………………........…17 1.Monitor Specification......………..4 6.1.Main Board............17...

  • Page 2: Revision List

    17” LCD Color Monitor AOC 716Vwy Revision List Revision Date Revision History TPV Model T77HRTNQMWAC8N Jul.-13-07 First Version Release...

  • Page 3: Important Safety Notice

    AOC 716Vwy Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended.

  • Page 4: Monitor Specification

    17” LCD Color Monitor AOC 716Vwy 1. Monitor Specifications Items Descriptions Driving system TFT Color LCD Type HSD170MGW1-B00 Size 43.2cm (17") LCD Panel Pixel pitch 0.255mm( H )x 0.255mm( V ) 160˚ (H) 160˚ (V) (TYPE) Viewable angle Response time (type)

  • Page 5: Lcd Monitor Description

    17” LCD Color Monitor AOC 716Vwy 2. LCD Monitor Description The LCD MONITOR will contain a main board, a power board and a key board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.

  • Page 6: Operation Instruction

    17” LCD Color Monitor AOC 716Vwy 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences.

  • Page 7: Adjusting The Picture

    17” LCD Color Monitor AOC 716Vwy 3.3 Adjusting the Picture OSD Settings · Press the MENU-button to activate the OSD window. · Press+ or - to navigate through the functions. Once the desired function is highlighted, press the MENU-buttonto activate it.If the function selected has a sub-menu, press or again to navigate through the sub-menu functions.Once the desired function is highlighted, press MENU-button to activate it.
  • Page 8 17” LCD Color Monitor AOC 716Vwy...

  • Page 9: Input/Output Specification

    17” LCD Color Monitor AOC 716Vwy 4. Input/output Specification 4.1 Input Signal Connector D-SUB connector DVI connector...

  • Page 10: Power Supply Requirement

    17” LCD Color Monitor AOC 716Vwy 4.2 Power Supply Requirement A/C Line voltage range : 100 V ~ 240 V : 50 ± 3Hz, 60 ± 3Hz A/C Line frequency range Current : TBD Peak surge current : < 55A peak at 240 VAC and cold starting Leakage current : <...

  • Page 11: Panel Specification

    17” LCD Color Monitor AOC 716Vwy 4.4. Panel Specification HannStar Display model HSD170MGW1-B00 is a color active matrix thin film transistor(TFT) liquid crystal display (LCD) that uses amorphous silicon TFT as a switching device. This model is composed of a TFT LCD panel, a driving circuit and a back light system.
  • Page 12 17” LCD Color Monitor AOC 716Vwy 2. Backlight Unit 4.4.4 Optical Characteristics Measuring Condition _ Measuring surrounding: dark room _ Lamp current IBL: 7.5±0.1mA, lamp freq. FL=50 KHz, Inverter: TDK TBD315NR-1 _ VDD=5.0V, fV=60Hz _ Ambient temperature: 25±2oC _ 30min. Warm-up time.

  • Page 13: Block Diagram

    17” LCD Color Monitor AOC 716Vwy 5. Block Diagram 5.1 Software Flow Chat...
  • Page 14 17” LCD Color Monitor AOC 716Vwy 1) MCU initialize. 2) Is the EPROM blank? 3) Program the EPROM by default values. 4) Get the PWM value of brightness from EPROM. 5) Is the power key pressed? 6) Clear all global flags.

  • Page 15: Electrical Block Diagram

    17” LCD Color Monitor AOC 716Vwy 5.2 Electrical Block Diagram 5.2.1 Main Board X401 LCD Interface Crystal CN601 24MHz CLKOUT U401 U501 Scalar IC RTD2525LH RTD2120L-LF (Include ADC, OSD) EPR_SDA H sync EPR_SCL Digital V sync Video Key Board Control...
  • Page 16 17” LCD Color Monitor AOC 716Vwy 5.2.2 Inverter/Power Board AC input Bridge Rectifier Transformer Rectifier diodes EMI filter and Filter Start Circuit: R904,R932,R933 CN902 Feedback Circuit Control IC ON/OFF Output MOSFET Circuit Transformer Lamp Over ON/OFF Feedback Voltage Control Circuit...

  • Page 17: Schematic

    17" LCD Color Monitor AOC 716Vwy 6. Schematic 6.1 Main Board...
  • Page 18 17" LCD Color Monitor AOC 716Vwy...
  • Page 19 17" LCD Color Monitor AOC 716Vwy...
  • Page 20 17" LCD Color Monitor AOC 716Vwy...
  • Page 21 17" LCD Color Monitor AOC 716Vwy...

  • Page 22: Power Board

    17" LCD Color Monitor AOC 716Vwy 6.2 Power Board 1/4W R918 L904 R941 R945 1K 1/4W 1K 1/4W +12V 1/4W R919 1.1uH BD901 C912 KBP208G 0.001uF C922 ZD902 C930 1/4W R920 C917 C918 470uF25V R944 RLZ13B 67G215D4714KV R946 0.1uF 1K 1/4W...
  • Page 23 17" LCD Color Monitor AOC 716Vwy CN801 R821 C839 T801 1000pF POWER X'FMR R817 1K 1/10W 1% 10K 1/10W CONN R855 D805 1/4W 33G8020 2E F LL4148WP C819 070522 F801 0.0022uF +12V C801 15pF/3KV 0R05 1/4W R804 Q801 C802 C824...
  • Page 24 17" LCD Color Monitor AOC 716Vwy 0.47uF/16V 65G0603474 12 C104 100uF25V C102 C103 67G215Y 1014KT U101 56G 616 37 R104 CN102 10K 1/10W 5% 0.47uF/16V 61G0603103 C101 65G0603474 12 CN101 LOUT+ LIN+ LOUT+ C105 R105 LOUT- LIN- LOUT- 10K 1/10W 5%...

  • Page 25: Pcb Layout

    17" LCD Color Monitor AOC 716Vwy 7. PCB Layout 7.1 Main Board...
  • Page 26 17" LCD Color Monitor AOC 716Vwy...

  • Page 27: Power Board

    17" LCD Color Monitor AOC 716Vwy 7.2 Power Board...

  • Page 28: Key Board

    17" LCD Color Monitor AOC 716Vwy 7.3 Key Board...

  • Page 29: Maintainability

    17" LCD Color Monitor AOC 716Vwy 8. Maintainability 8.1 Equipments and Tools Requirement Voltmeter. Oscilloscope. Pattern Generator. DDC Tool with and Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual.

  • Page 30: Trouble Shooting

    17" LCD Color Monitor AOC 716Vwy 8.2 Trouble Shooting 8.2.1 Main Board No power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the...
  • Page 31 17" LCD Color Monitor AOC 716Vwy No picture (LED orange) No picture The button if under control Measure U201 PIN2=3V, Q502(C)=1.8V Check U201,Q502 X401 oscillate waveform is normal Replace X401 Check HS/VS from CN301 is normal Check Correspondent component Check U401...
  • Page 32 17" LCD Color Monitor AOC 716Vwy White screen White screen Measure Q602 base X401 oscillate waveform is normal is low level? Replace X401 Check Q601, Q602 is Check reset circuit of broken or CN601 solder? U401 is normal Check Correspondent Check Correspondent component.
  • Page 33 17" LCD Color Monitor AOC 716Vwy 8.2.2 Power/Inverter Board (1) No power Check CN902 pin4 = 5V Check AC line volt 110V or 220V Check AC input Check the voltage of C907 (+) Check bridge rectified circuit and F901 circuit...
  • Page 34 17" LCD Color Monitor AOC 716Vwy 2.) W / LED, No Backlight Check F801= 12V Check adapter or MB Check ON/OFF signal Check Interface board Check IC801 pin12=5V Change ON/OFF SINGLE Check IC801 PIN9/10 have the output of square wave at short...
  • Page 35 17" LCD Color Monitor AOC 716Vwy 8.2.3 Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Pad Board Replace Button Switch Is Button Switch normally? Replace Key Pad Board Is Key Pad Board normally?

  • Page 36: White-Balance Luminance Adjustment

    = 313 ±20, y = 329 ±20, Y= 180cd/m 3. Into Factory mode of AOC 716Vwy: Press the MENU button, pull out the power cord, and then plug the power cord. Then the factory OSD will be at the left top of the panel.
  • Page 37 17" LCD Color Monitor AOC 716Vwy 2. Switch the MEM. Channel to Channel 9 (with up or down arrow on chroma 7120) 3. The LCD-indicator on chroma 7120 will show x = 283 ±20, y = 297 ±20, Y=180cd/m 4. Adjust the RED of color1 on factory window until chroma 7120 indicator reached the value R=100 5.

  • Page 38: Monitor Exploded View

    17" LCD Color Monitor AOC 716Vwy 10.Monitor Exploded View Item Description SCREW HINGE SCREW SCREW RUBBER FOOT CABLE COVER BASE STAND HINGE REAR COVER MAIN FRAME KEY BUTTON POWER LENS BEZEL(17")

  • Page 39: Bom List

    17" LCD Color Monitor AOC 716Vwy 11. BOM List T77HRTNQMWAC8N Location Part No. Description 007G 5 1 A COMPOUND PALLET 007G 5 10 1 COMPOUND PALLET 012G 394 3 RUBBER FOOT 026G 800504 3 BARCODE LABEL 040G 154501 1 HI-POT GND LABEL...
  • Page 40 17" LCD Color Monitor AOC 716Vwy AM1G1740 10 47 CR3 SCREW M3X6 CBPC7HRXAOQ8 CONVERSION BOARD CN202 033G3802 6 WAFER CN201 033G3802 9 WAFER 9P RIGHT ANELE PITCH CN601 033G801930F CH JS CONNECTOR 040G 457624 1B LABEL-CPU 040G 45762412B CBPC LABEL...
  • Page 41 17" LCD Color Monitor AOC 716Vwy R312 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R313 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R315 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R317 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R420 061G0402101...
  • Page 42 17" LCD Color Monitor AOC 716Vwy R403 061G0402392 RST CHIP 3.9K 1/16W 5% R437 061G0402392 RST CHIP 3.9K 1/16W 5% R202 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R327 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R411 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W...
  • Page 43 17" LCD Color Monitor AOC 716Vwy C301 065G0402473 12 CHIP 0.047UF 16V X7R C304 065G0402473 12 CHIP 0.047UF 16V X7R C306 065G0402473 12 CHIP 0.047UF 16V X7R C307 065G0402473 12 CHIP 0.047UF 16V X7R C309 065G0402473 12 CHIP 0.047UF 16V X7R...
  • Page 44 17" LCD Color Monitor AOC 716Vwy SW003 077G 600 1GCJ TACT SWITCH TSPB-2 -NP SW002 077G 600 1GCJ TACT SWITCH TSPB-2 -NP SW001 077G 600 1GCJ TACT SWITCH TSPB-2 -NP SW005 077G 600 1GCJ TACT SWITCH TSPB-2 -NP SW004 077G 600 1GCJ...
  • Page 45 17" LCD Color Monitor AOC 716Vwy 0M1G1730 8128 CR3 SCREW 705GQ761006 R908 ASS'Y R908 061G152M10458F 100K OHM 5% 2W 096G 29 8 TUBE 705GQ761007 R914 ASS'Y R914 061G152M478 64 0.47 OHM 5% 2W 096G 29 1 SHRINK TUBE UL/CSA 705GQ793036...
  • Page 46 17" LCD Color Monitor AOC 716Vwy R101 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R835 061G0603105 RST CHIPR 1 MOHM +-5% 1/10W R862 061G0603105 RST CHIPR 1 MOHM +-5% 1/10W R803 061G0603106 RST CHIPR 10 MOHM +-5% 1/10W R930 061G0603243 1F RST CHIPR 2.43 KOHM +-1% 1/10W...
  • Page 47 17" LCD Color Monitor AOC 716Vwy R932 061G1206304 300 KOHM 1/8W R933 061G1206304 300 KOHM 1/8W R855 061G1206330 RST CHIPR 33 OHM +-5% 1/4W R856 061G1206330 RST CHIPR 33 OHM +-5% 1/4W R909 061G1206519 RST CHIPR 5.1 OHM +-5% 1/4W...
  • Page 48 17" LCD Color Monitor AOC 716Vwy D814 093G 6432S IN4148W D812 093G 6432S IN4148W D807 093G 6432S IN4148W D806 093G 6432S IN4148W D805 093G 6432S IN4148W ZD801 093G 39S 10 T RLZ6.8B LLDS ZD906 093G 39S 20 T RLZ22B LLDS...

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