Hanns.G AG172D Service Manual

Hanns.G AG172D 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........................................6
3. Operation Instruction............................................7
3.1.General Instructions.........................................7
3.2. Control Button......................................................7
3.3 Adjusting the Picture..........................................8
4. Input/Output Specification.......................................13
4.1.Input Signal Connector.........................................13
4.2.Factory Preset Display Modes.........................14
4.3.Panel Specification.........................................14
5. Block Diagram........................................................17
5.1.Software Flow Chart...................................17
5.2.Electrical Block Diagram.............................19
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
6.Schematic......................................................20
6.1 Main Board..........................................................20
6.2 Power Board.......................................................25
6.3 Audio Board.........................................................27
7.PCB Layout.....................................................28
7.1.Main Board.................................................28
7.2.Power Board..........................................31
7.3 Audio Board.................................................33
7.4.Keypad Board..............................................34
8. Maintainability................................................34
8.2. Trouble Shooting................................................35
10.Monitor Exploded View...................................43
11. BOM List...............................................................44
12.Different Parts List.................................................60
SAFETY NOTICE
1
Hanns.G AG172D
Horizontal Frequency
31-80 kHz
Page

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Summary of Contents for Hanns.G AG172D

  • Page 1: Table Of Contents

    17" LCD Color Monitor Hanns.G AG172D Service Service Service Horizontal Frequency 31-80 kHz TABLE OF CONTENTS Description Page Description Page Table Of Contents..……....……...…..1 6.Schematic…………….......…..20 6.1 Main Board…………..........20 Revision List.…......………....……..2 Important Safety Notice.………….…....……..3 6.2 Power Board..……………........25 1.Monitor Specification.........………..4 6.3 Audio Board..……..........27 7.PCB Layout..…………........28...
  • Page 2: Revision List

    17" LCD Color Monitor Hanns.G AG172D Revision List Revision Date Revision History TPV Model T76CM6HBG6Z4AP Sep-28-06 First Version Release T76CM6HBG6HZAP Oct-18-06 Add the dimension of monitor on Page 6...
  • Page 3: Important Safety Notice

    17" LCD Color Monitor Hanns.G AG172D 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.
  • Page 4: Monitor Specification

    17" LCD Color Monitor Hanns.G AG172D 1. Monitor Specifications...
  • Page 5: Monitor Block Diagram

    17" LCD Color Monitor Hanns.G AG172D 2. LCD Monitor Description Assembly Description The LCD MONITOR will contain a main board, power board, audio board and a key board which house the flat panel control logic, brightness control logic and DDC.
  • Page 6: Lcd Monitor Description

    17" LCD Color Monitor Hanns.G AG172D Dimensions...
  • Page 7: Operation Instruction

    17" LCD Color Monitor Hanns.G AG172D 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The control buttons are located in the front of the monitor. By changing these settings, the picture can be adjusted to your personal preferences.
  • Page 8: Adjusting The Picture

    17" LCD Color Monitor Hanns.G AG172D 3.3 Adjusting the Picture Adjustment steps: 1. Press the MENU-button to activate the OSD window. 2. Press < or > to select the desired function. 3. Press the MENU-button to select the function that you want to adjust.
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  • Page 13: Input/Output Specification

    17" LCD Color Monitor Hanns.G AG172D 4. Input/Output Specification 4.1 Input Signal Connector...
  • Page 14: Factory Preset Display Modes

    17" LCD Color Monitor Hanns.G AG172D 4.2 Factory Preset Display Modes 4.4 Panel Specification 4.4.1 Display Characteristics...
  • Page 15 17" LCD Color Monitor Hanns.G AG172D 4.4.2 Optical Characteristics...
  • Page 16 17" LCD Color Monitor Hanns.G AG172D 4.4.3 Parameter guide line for CCFL Inverter TFT LCD Module: Back Light Unit:...
  • Page 17: Block Diagram

    17" LCD Color Monitor Hanns.G AG172D 5. Block Diagram 5.1 Software Flow Chat...
  • Page 18 17" LCD Color Monitor Hanns.G AG172D 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 19: Electrical Block Diagram

    17" LCD Color Monitor Hanns.G AG172D 5.2 Electric Block Diagram Crystal (14.318MHz) LCD interface (X401) (CN101) EEPROM Scalar TSUM56AK PM25LV010-25 (Include ADC, OSD) (U402) (U401) H sync Digital V sync Video Signal D-Sub Connector Connector (CN405) (CN406) EEPROM EEPROM M24C02-WMN6TP...
  • Page 20: Schematic

    17" LCD Color Monitor Hanns.G AG172D 6. Schematic 6.1 Main Board TSUM56AK SCHEMATIC XGA/SXGA LVDS OUTPUT GNDR GNDR GNDG GNDG GNDB GNDB HSY NC HSY NC VCC1.8 VCC3.3 +12V VSY NC VSY NC DDCA_SDA DDCA_SDA DDCA_SCL DDCA_SCL DET_VGA DET_VGA DDC_WP DDC_WP VCC1.8...
  • Page 21 17" LCD Color Monitor Hanns.G AG172D SOT-223 U701 VCTRL +3V3 NC/LT1117-18 R702 +3V3   1/16W C701 C703 C704 VCC1.8 22uF/50V C702 VCC1.8 22uF/50V D701 Q702 SMAL140 R703 PZT2907A BL_ADJ(DC)   1/16W 0V ~ 3.3V 4.7K D702 0V ~ 5V 4.7K 4.7K...
  • Page 22 17" LCD Color Monitor Hanns.G AG172D CN405 R491 PC5V   1/16W FB410   1/16W DB15 RED+ R434 1/16W C432 0.047uF   RED- GREEN+ FB411   1/16W R435   1/16W C433 0.047uF GREEN- BLUE+ FB412 1/16W R436 1/16W C434 0.047uF  ...
  • Page 23 17" LCD Color Monitor Hanns.G AG172D VDVI VMPLL VPLL AVDD VDDP VDDC VCC1.8 FB401 VDDC VCC3.3 FB402 AVDD VCC1.8 600 OHM VCC3.3 600 OHM C403 C407 VCC3.3 22uF/50V 0.1uF VCTRL VCTRL C404 C405 C406 0.1uF 0.1uF 0.1uF NC/LVACKP/NC R490 RIN0P...
  • Page 24 17" LCD Color Monitor Hanns.G AG172D PB[0..5] PB[0..5] CN102 CN103 PA[0..7] RB1P PA[0..7] PA[0..7] RB1N PA[0..7] LVACKP RB2P RA3N FB0N RB3N RA1P LVACKM RB2N RA3P FB0P RB3P RA1N LVA2P RB3P RA2P LVA2M RB3N RA2N FB1N RB2N RA2N LVA1P RA2P FB1P...
  • Page 25: Power Board

    17" LCD Color Monitor Hanns.G AG172D 6.2 Power Board R951 R952   1/8W C920 R953 BD901 0.001uF/500V 2A 600V   1/8W   1/8W D920 J901  蔼跋19mm,ㄏノ13x16size SBT150-10LS TIN COATED T901 L921 3.5UH F902 4A/32V J902 +12V TIN COATED C922 C923...
  • Page 26 17" LCD Color Monitor Hanns.G AG172D RJ802 PT801 CN801 RJ801   1/8W RJ803 80GL17T-36-DN   1/8W   1/10W RJ804   1/8W R836 C835 1/10W   +12V C816 22PF/3KV 33G8021-2D-U 1UF/25V CN802 R802 R804 R805 300K 1/8W   N.C C828  ...
  • Page 27: Audio Board

    17" LCD Color Monitor Hanns.G AG172D 6.3 Audio Board OUT_L +12V CN202 CONN MUTE CN204 VOLUME C202 C201 C203 +12V 470uF/16V 470uF/16V 0.1uF OUT_R C214 NC-CONN U201 R301 E-TDA7496L C205 CN201 C204 0.47uF/25V R201 18K 1/16W NC   OUTL 470uF/16V R203 18K  ...
  • Page 28: Pcb Layout

    17" LCD Color Monitor Hanns.G AG172D 7. PCB Layout 7.1 Main Board...
  • Page 29 17" LCD Color Monitor Hanns.G AG172D...
  • Page 30 17" LCD Color Monitor Hanns.G AG172D...
  • Page 31: Power Board

    17" LCD Color Monitor Hanns.G AG172D 7.2 Power Board...
  • Page 32 17" LCD Color Monitor Hanns.G AG172D...
  • Page 33: Audio Board

    17" LCD Color Monitor Hanns.G AG172D 7.3 Audio board...
  • Page 34: Keypad Board

    17" LCD Color Monitor Hanns.G AG172D 7.4 Key board 8. Maintainability 8.1 Equipments and Tools Requirement Voltmeter. Oscilloscope. Pattern Generator. DDC Tool with an IBM Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual.
  • Page 35: Trouble Shooting

    17" LCD Color Monitor Hanns.G AG172D 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 36 17" LCD Color Monitor Hanns.G AG172D No picture (LED orange) No picture The button if under X401 oscillate Replace X401 control waveform is normal Check Correspondent Check reset circuit of component U401 is normal Measure U702 PIN2=3.3V Replace U401 X401 oscillate...
  • Page 37 17" LCD Color Monitor Hanns.G AG172D White screen White screen Measure Q708 base X401 oscillate waveform is normal is high level? Replace X401 Check Q706, Q704 is Check reset circuit of broken or CN101 solder? U401 is normal Check Correspondent Check Correspondent component.
  • Page 38 17" LCD Color Monitor Hanns.G AG172D 8.2.2 Power Board 1) No power Check CN902 pin 3/4=12V pin 7/8=5V Check Main board Check AC line volt 100-240V Check AC input Check the voltage of C907 (+) Check bridge rectified circuit and F901 circuit...
  • Page 39 17" LCD Color Monitor Hanns.G AG172D 2.) No Backlight Check C811 (+) =12V Check power section Check ON/OFF signal Check Interface section or main board CheckIC801 pin 2=5V? Check Q801 Q802 Q803 ZD801 Check IC801 Pin1/pin15 have the output of sawtooth wave at short time...
  • Page 40 17" LCD Color Monitor Hanns.G AG172D 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 41: White-Balance, Luminance Adjustment

    5500 color temp. parameter is x = 333±28, y = 348 ±28, Y=220cd/㎡ 3. Enter into factory mode of AG172D Turn on the power, press simultaneously the MENU and AUTO buttons, then the factory OSD will be at the left top of the panel.
  • Page 42 17" LCD Color Monitor Hanns.G AG172D C. Adjust 5500 color-temperature 1. Switch the chroma-7120 to RGB-Mode (with press “MODE” button) 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 = 333±28, y = 348 ±28, Y=220cd/㎡...
  • Page 43: Monitor Exploded View

    17" LCD Color Monitor Hanns.G AG172D 10. Monitor Exploded View...
  • Page 44: Bom List

    17" LCD Color Monitor Hanns.G AG172D 11. BOM List T76CM6HBG6Z4AP Location Part No. Description 040G 152509 RECYCLE LABEL 040G 152512 RECYCLE LABEL 045G 88606 PE BAG FOR BASE 045G 88607 PE BAG FOR MONITOR 050G 600 2 HANDLE1 050G 600 3...
  • Page 45 Q85G 740 1 1 SHIELD 040G 58162435A LABEL 045G 76 28 RN PE BAG FO MANUAL/BASE Q41G780085012A QSG FOR AG172D Q41G780085013A Warranty card FOR AG172D Q41G780085014A recycle information Q70G7006850 2B cd manual 044G3231 5 EVA WASHER 0Q1G1030 8120 SCREW A33G0027 1 1C...
  • Page 46 17" LCD Color Monitor Hanns.G AG172D A34G0046 ZT 1B STAND A34G0117 ZT 1B 20 BASE A37G0006 1 HINGE CN202 033G802414C H 2*7PIN DUAL ROW RIGHT ANGLE H 040G 581 26605 LABEL-P/N U201 056G 616 1 IC E-TDA7496L ST C201 067G215L471 3N KY16VB470M-L 10*12.5...
  • Page 47 17" LCD Color Monitor Hanns.G AG172D 040G 45762422A LABEL P/N SW005 077G 600 1GCJ TACT SWITCH TSPB-2 -NP SW002 077G 600 1GCJ TACT SWITCH TSPB-2 -NP SW003 077G 600 1GCJ TACT SWITCH TSPB-2 -NP SW004 077G 600 1GCJ TACT SWITCH TSPB-2 -NP...
  • Page 48 17" LCD Color Monitor Hanns.G AG172D PT802 080GL17T 36 DN XFMR FOR POWER DARFON PT801 080GL17T 36 YS XFMR FOR INVERTER Top nation PT802 080GL17T 36 YS XFMR FOR INVERTER Top nation CN901 087G 501 32 S AC SOCKET D922...
  • Page 49 17" LCD Color Monitor Hanns.G AG172D Q404 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q402 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q701 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q703 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q706 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q401 057G 417 6 PMBS3906/PHILIPS-SMT(06) Q403 057G 417 6...
  • Page 50 17" LCD Color Monitor Hanns.G AG172D R455 061G0603101 RST CHIPR 100 OHM +-5% 1/10W R454 061G0603101 RST CHIPR 100 OHM +-5% 1/10W R453 061G0603101 RST CHIPR 100 OHM +-5% 1/10W R445 061G0603101 RST CHIPR 100 OHM +-5% 1/10W R443 061G0603101...
  • Page 51 17" LCD Color Monitor Hanns.G AG172D R459 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R460 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R409 061G0603121 RST CHIPR 120 OHM +-5% 1/10W R414 061G0603121 RST CHIPR 120 OHM +-5% 1/10W R703 061G0603202...
  • Page 52 17" LCD Color Monitor Hanns.G AG172D C424 065G0603104 32 CHIP 0.1UF 50V X7R C422 065G0603104 32 CHIP 0.1UF 50V X7R C420 065G0603104 32 CHIP 0.1UF 50V X7R C419 065G0603104 32 CHIP 0.1UF 50V X7R C417 065G0603104 32 CHIP 0.1UF 50V X7R...
  • Page 53 17" LCD Color Monitor Hanns.G AG172D FB405 071G 56Z601 CHIP BEAD 600 OHM 0805 FB404 071G 56Z601 CHIP BEAD 600 OHM 0805 FB403 071G 56Z601 CHIP BEAD 600 OHM 0805 FB402 071G 56Z601 CHIP BEAD 600 OHM 0805 FB401 071G 56Z601...
  • Page 54 17" LCD Color Monitor Hanns.G AG172D D407 093G 64 42 P BAV70 SOT-23 D702 093G 6432P LL4148 D701 093G 6432P LL4148 D419 093G 6433P BAV99 D420 093G 6433P BAV99 D424 093G 6433P BAV99 D423 093G 6433P BAV99 D422 093G 6433P...
  • Page 55 17" LCD Color Monitor Hanns.G AG172D D920 093G 60237 SRF20100C D920 093G 60247 FME-220A D920 093G 60276 DIODE SBT150-10LST SANYO 0M1G1730 10128 CR3 SCREW HS3 D920 Q90G0062 1 HEAT SINK D900 093G1100 1052T BA159G 096G 29 1 SHRINK TUBE UL/CSA...
  • Page 56 17" LCD Color Monitor Hanns.G AG172D R803 061G0805103 10 KOHM 1/10W R812 061G0805103 10 KOHM 1/10W R915 061G0805103 10 KOHM 1/10W R810 061G0805104 RST CHIP 100K 1/8W 5% R815 061G0805104 RST CHIP 100K 1/8W 5% R821 061G0805104 RST CHIP 100K 1/8W 5%...
  • Page 57 17" LCD Color Monitor Hanns.G AG172D R902 061G1206334 330KOHM 1/8 R951 061G1206470 47 1206 R952 061G1206470 47 1206 R954 061G1206470 47 1206 R955 061G1206470 47 1206 R805 061G1206471 470 1206 R910 061G1206759 7R5 OHM 1/8W C830 065G0805101 32 100PF +-10% 50V X7R...
  • Page 58 17" LCD Color Monitor Hanns.G AG172D D801 093G 64 42 PP BAV70 SOT-23 D803 093G 64 42 PP BAV70 SOT-23 D916 093G 64 44 S LL4148WP D915 093G 64 44 S LL4148WP D910 093G 64 44 S LL4148WP D910 093G 6432S...
  • Page 59 17" LCD Color Monitor Hanns.G AG172D C910 065G 1K152 1T6052 1.5nF /1K Y5P+-10% C921 065G517K102 5T 1000PF 10% Y5P 500V C920 065G517K102 5T 1000PF 10% Y5P 500V C911 067G 2152207NT KY50VB22M-TP5 5*11 C911 067G 2152207RT LOW E.S.R 22UF +/-20% 50V...
  • Page 60: Different Parts List

    17" LCD Color Monitor Hanns.G AG172D 12. Different Parts List Diversity of T76CM6HBG6HZAP compared with T76CM6HBG6Z4AP Location Part No Description 089G404A18N YH POWER CABLE...

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