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19" 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.Factory Preset Display Modes.........................10
4.3.Power Supply Requirements.........................12
4.4.Panel Specification.........................................12
5.Block Diagram.........................................................13
5.1.Software Flow Chart........................................13
5.2.Electrical Block Diagram.............................15
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......................................................17
6.1.Main Board................................................17
6.2.Power Board..............................................22
6.3.Audio Board.............................................24
6.4.Key Board.............................................25
7.PCB Layout........................................................26
7.1.Main Board.................................................26
7.2.Power Board..............................................28
7.3.Audio Board.............................................30
7.4.Key Board...................................................30
8.Maintainability................................................31
8.2.Trouble Shooting..........................................32
10.Exploded View.......................................41
11.BOM List........................................................42
SAFETY NOTICE
-1-
FSC SCALEOVIEW L19-5
Horizontal Frequency
30kHz - 83kHz
Page

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Summary of Contents for AOC l19-5

  • Page 1: Table Of Contents

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 Service Service Service Horizontal Frequency 30kHz – 83kHz TABLE OF CONTENTS Description Page Description Page Table Of Contents..……....……...…..1 6.Schematic…………….......…..17 Revision List.…......………....……..2 6.1.Main Board......…....17 Important Safety Notice.………….…....……..3 6.2.Power Board..……........22 1.Monitor Specification......………..4 6.3.Audio Board………………………………………24 2.LCD Monitor Description……………………………..5 6.4.Key Board………………………………………25...
  • Page 2: Revision List

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 Revision List Revision Date Revision History TPV Model Name Dec-12-2006 Initial Release T96HM6HBG8M9AP...
  • Page 3: Important Safety Notice

    FSC SCALEOVIEW L19-5 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

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 1. Monitor Specifications Item Specification System 48cm (19") color LCD Active Area 376 mm x 301 mm Pixel Pitch 0.294mm (H) /0.294 mm (V) Maximal Resolution 1280 x 1024 pixels Panel Display Colors 16.2 Million / Dithering (6bit)
  • Page 5: Lcd Monitor Description

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 2. LCD Monitor Description The LCD MONITOR will contain a main board, a power board, an audio board and a key board which house the flat panel control logic, brightness control logic and DDC.
  • Page 6: Operation Instruction

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control buttons are located in the front of the monitor. By changing these settings, the picture can be adjusted to your personal preferences.
  • Page 7: Adjusting The Picture

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 3.3 Adjusting the Picture 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-button to activate it. If the function selected has a sub-menu, press + or - again to navigate through the sub-menu Functions.
  • Page 8 19” LCD Color Monitor FSC SCALEOVIEW L19-5 H. Position Adjust the horizontal position of the OSD. OSD Setup V. Position Adjust the vertical position of the OSD. OSD Timeout Adjust the OSD timeout. Language Language Select the language you like.
  • Page 9: Input/Output Specification

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 4. Input/Output Specification 4.1 Input Signal Connector D-Sub Input Pin No. Description Pin No. Description Red Video +5V input Green Video Logic Ground Blue Video Monitor Ground DDC-Serial Data DDC-Return H-Sync. Red Ground V-Sync.
  • Page 10: Factory Preset Display Modes

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 4.2 Factory Preset Display Modes -10-...
  • Page 11 19” LCD Color Monitor FSC SCALEOVIEW L19-5 -11-...
  • Page 12: Power Supply Requirements

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 4.3 Power Supply Requirements A/C Line voltage range 100 V ~ 240 V± 10 % A/C Line frequency range 47Hz ~ 63Hz Current 1.5 A max. at 100V ,0.8 A max. at 240V Peak surge current <...
  • Page 13: Block Diagram

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 5. Block Diagram 5.1 Software Flow Chart -13-...
  • Page 14 19” LCD Color Monitor FSC SCALEOVIEW L19-5 1) MCU initialize. 2) Is the EEPROM blank? 3) Program the EEPROM by default values. 4) Get the PWM value of brightness from EEPROM. 5) Is the power key pressed? 6) Clear all global flags.
  • Page 15: Electrical Block Diagram

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 5.2 Electrical Block Diagram 5.2.1 Scalar Board Block Diagram LCD Interface (CN101) OSD Control Interface Scalar (Keypad) TSUM56AK (CN403) (Include MCU, ADC, OSD) U401 EEPROM PM25LV010-25SCE Digital DDCA_SDA (U402) Video CLOCK DDCA_SCL HSYNC...
  • Page 16 19” LCD Color Monitor FSC SCALEOVIEW L19-5 5.2.2 Inverter/Power Board Block Diagram - 16 -...
  • Page 17: Schematic

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 6. Schematic 6.1 Main Board 715G1558 1 FS 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...
  • Page 18 19” LCD Color Monitor FSC SCALEOVIEW L19-5 SOT-223 U701 VCTRL 4 +3V3 NC/LT1117-18 R702 +3V3   1/16W C701 C703 C704 VCC1.8 100uF/25V + C702 VCC1.8 4 4.7uF/16V D701 1N4148 R703 Q702 BL_ADJ(DC)   1/16W 0V ~ 3.3V 4.7K D702 CHT2907 0V ~ 5V 4.7K...
  • Page 19 19” LCD Color Monitor FSC SCALEOVIEW L19-5 CN405 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 BLUE- PC5V R437  ...
  • Page 20 19” LCD Color Monitor FSC SCALEOVIEW L19-5 VDVI VMPLL VPLL AVDD VDDP VDDC VCC1.8 FB401 VDDC VCC3.3 FB402 AVDD VCC1.8 600 OHM VCC3.3 600 OHM C403 C407 U401 VCC3.3 4.7uF/16V 0.1uF VCTRL VCTRL C404 C405 C406 0.1uF 0.1uF 0.1uF NC/LVACKP/NC...
  • Page 21 19” LCD Color Monitor FSC SCALEOVIEW L19-5 PB[0..5] PB[0..5] CN102 CN103 PA[0..7] RB1P PA[0..7] PA[0..7] RB1N PA[0..7] LVACKP FB0N RB2P RA3N RB3N RA1P LVACKM RB2N RA3P FB0P RB3P LVA2P RA1N RB3P RA2P LVA2M RB3N RA2N FB1N RB2N LVA1P FB1P RA2N...
  • Page 22: Power Board

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 6.2 Power Board 715G1994 1 R951 47 1/8W R952 47 1/8W C920 BD901 0.001uF/500V 2A 800V D920 J901 SBT150-10LS TIN COATED L921 T901 3.5UH F902 4A/32V J902 +12V TIN COATED + C922 + C923...
  • Page 23 19” LCD Color Monitor FSC SCALEOVIEW L19-5 RJ802 PT801 CN801 RJ801 0 1/8W RJ803 80GL17T-36-DN 0 1/8W 0 1/10W RJ804 0 1/8W R836 C835 1K 1/10W +12V C816 15PF/6KV 33G8021-2D-U CN802 R802 R804 R805 300K 1/8W N.C C828 10K 1/8W 470 1/8W 0.1uF/50V...
  • Page 24: Audio Board

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 6.3 Audio Board 715G1841 1 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 18k E-TDA7496L C205 CN201 C204 0.47uF/25V R201 18K 1/16W NC...
  • Page 25: Key Board

    POWER_ KEY KEY _RIGHT LED_ORANGE LED_GRN KEY _RIGHT KEY _MANU KEY _MANU POWER_ KEY KEY _LEFT LED_ORANGE LED_GRN KEY _SEL SPKR_R+ SPKR_L+ SW001 SW002 SW003 SW004 SW005 CONN DP101 AOC (Top Victory) Electronics Co., Ltd. Title KEY PAD - 25 -...
  • Page 26: Pcb Layout

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 7. PCB Layout 7.1 Main Board 715G1558 1 FS - 26 -...
  • Page 27 19” LCD Color Monitor FSC SCALEOVIEW L19-5 - 27 -...
  • Page 28: Power Board

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 7.2 Power Board 715G1994 1 - 28 -...
  • Page 29 19” LCD Color Monitor FSC SCALEOVIEW L19-5 - 29 -...
  • Page 30: Audio Board

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 7.3 Audio Board 715G1841 1 7.4 Key Board 715G1960 117N - 30 -...
  • Page 31: Maintainability

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 8. Maintainability 8.1 Equipment and Tools Requirement 1、Voltmeter. 2、Oscilloscope. 3、Pattern Generator. 4、DDC Tool with a IBM Compatible Computer. 5、Alignment Tool 6、LCD Color Analyzer. 7、Service Manual. 8、User Manual. - 31 -...
  • Page 32: Trouble Shooting

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 8.2 Trouble Shooting 8.2.1 Main Board Defect Mode Failure Analysis Repair Testing Missing Line Abnorma l Display Bright Dot Dark Dot Light Leakage Mura Check Panel Panel Change Image Sticking Dot Defect Brightness Spot...
  • Page 33 19” LCD Color Monitor FSC SCALEOVIEW L19-5 Noise Check Single Cable Change Single Cable Flicker Check Main board Change Main board Change Panel Check Panel Abnormal Check Main board Change Main board Gray Check Panel Change Panel Check LVD Cable...
  • Page 34 19” LCD Color Monitor FSC SCALEOVIEW L19-5 LED Display Change Keyboard or LED Off Abnormal Main board or wire Change Keyboard or LED Dark Main board Change Keyboard or LED Abnormal Main board or wire Change Keyboard or LED Flicker...
  • Page 35 19” LCD Color Monitor FSC SCALEOVIEW L19-5 Inverter Control Relative Circuit Measured the inverter connector Check the On-Panel relative circuit, Q704, Q706, CN 701 In normal operation, when LED =green, Pin2 BL_ON=5V (on) Base of Q706 should =0V, Pin4 BL_ADJ varies from 0V to 5V In saving mode, when LED=orange, Base of Q706 should =3.3V,...
  • Page 36 19” LCD Color Monitor FSC SCALEOVIEW L19-5 8.2.2 Power/Inverter Board No Power - 36 -...
  • Page 37 19” LCD Color Monitor FSC SCALEOVIEW L19-5 No Backlight - 37 -...
  • Page 38 19” LCD Color Monitor FSC SCALEOVIEW L19-5 8.2.3 Key Board OSD is unstable or not working Connect Key Pad Board Is Key Pad Board connecting normally? Replace Button Switch Is Button Switch normally? Is Key Pad Board normally? Replace Key Pad Board...
  • Page 39 19” LCD Color Monitor FSC SCALEOVIEW L19-5 8.2.4 Audio Board No Audio output - 39 -...
  • Page 40: White-Balance, Luminance Adjustment

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 9. White-Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding White-Balance adjustment. 1. How to do the Chroma-7120 MEM. Channel setting A. Reference to chroma 7120 user guide B.
  • Page 41: Exploded View

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 10. Exploded View - 41 -...
  • Page 42: Bom List

    19” LCD Color Monitor FSC SCALEOVIEW L19-5 11. BOM List T96HM6HBG8M7AP Location TPV Part No. Description V000 040G 152509 RECYCLE LABEL V000 040G 152512 RECYCLE LABEL 045G 88606 PE BAG FOR BASE 045G 88609 C EPE COVER 045G 88626 1...
  • Page 43 19” LCD Color Monitor FSC SCALEOVIEW L19-5 Q40G0001622 1A CARTON LABEL Q44G3944622 1A CARTON Q44G9032 1 EPS(L) Q44G9032 2 EPS(R) V000 Q45G 88606 16 PE BAG FOR CLAMP Q52G6025 11999 MYLAR Q52G6025 13 32 MYLAR Q85G 740 2 1 SHIELD...
  • Page 44 19” LCD Color Monitor FSC SCALEOVIEW L19-5 CN405 088G 35315F H D-SUB 15PIN CN405 088G 35315F HJ SOC SUBD H 15P F CN406 088G 35424F H DV1 CONNECTOR 24PIN CN406 088G 35424FHCJ DVI 24PIN X401 093G 22 53 CRYSTAL 14.318MHZHC-49US...
  • Page 45 19” LCD Color Monitor FSC SCALEOVIEW L19-5 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 093G3006 1 31DQ06FC CN902 095G8014 12 42...
  • Page 46 19” LCD Color Monitor FSC SCALEOVIEW L19-5 Q702 057G 417 23 T TRA PZT2907AT1G SOT-223 Q704 057G 763 1 A03401 SOT23 BY AOS(A1) R488 061G0603000 RST CHIPR 0 OHM +-5% 1/10W R721 061G0603000 RST CHIPR 0 OHM +-5% 1/10W R720...
  • Page 47 19” LCD Color Monitor FSC SCALEOVIEW L19-5 R460 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R461 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R471 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R484 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R485...
  • Page 48 19” LCD Color Monitor FSC SCALEOVIEW L19-5 C416 065G0603104 32 CHIP 0.1UF 50V X7R C415 065G0603104 32 CHIP 0.1UF 50V X7R C414 065G0603104 32 CHIP 0.1UF 50V X7R C430 065G0603104 32 CHIP 0.1UF 50V X7R C706 065G0603104 32 CHIP 0.1UF 50V X7R...
  • Page 49 19” LCD Color Monitor FSC SCALEOVIEW L19-5 FB404 071G 56Z601 CHIP BEAD 600 OHM 0805 FB405 071G 56Z601 CHIP BEAD 600 OHM 0805 FB406 071G 56Z601 CHIP BEAD 600 OHM 0805 FB401 071G 56Z601 M CHIP BEAD 600OHM FB402 071G 56Z601 M...
  • Page 50 19” LCD Color Monitor FSC SCALEOVIEW L19-5 0M1G1730 8128 CR3 SCREW R909 061G152M10458F 100K OHM 5% 2W 096G 29 6 H.S. TUBE 005T 42 1 CUSHION 012T 372 1 SILICON D920 093G 60226 STPS20H100CT D920 093G 60237 SRF20100C D920 093G 60247...
  • Page 51 19” LCD Color Monitor FSC SCALEOVIEW L19-5 R809 061G0805105 1MOHM 1/10W R813 061G0805105 1MOHM 1/10W R816 061G0805105 1MOHM 1/10W R830 061G0805153 RST CHIPR 15KOHM +-5% 1/8W R820 061G0805153 RST CHIPR 15KOHM +-5% 1/8W R811 061G0805154 RST CHIPR 150KOHM +-5% 1/8W...
  • Page 52 19” LCD Color Monitor FSC SCALEOVIEW L19-5 C806 065G0805105 22 CHIP 1UF 25V X7R 0805 C812 065G0805152 32 CHIP 1500PF 50V X7R 0805 C813 065G0805152 32 CHIP 1500PF 50V X7R 0805 C822 065G0805152 32 CHIP 1500PF 50V X7R 0805 C823...
  • Page 53 19” LCD Color Monitor FSC SCALEOVIEW L19-5 Q900 006G 31502 1.5MM RIVET R916 006G 31502 1.5MM RIVET T901 006G 31502 1.5MM RIVET IC921 056G 158 10 T IC AZ431AZ-AE1 TO-92 BY AAC IC921 056G 158 12 KIA431A-AT/P TO-92 R922 061G 17247152T...

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