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Atec AV32OPD Service Manual

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Isidro
February 8, 2025

Tiene Bluetooth este modelo cual es la aplicación que conecta al teléfono

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Summary of Contents for Atec AV32OPD

  • Page 2: Table Of Contents

    INDEX 1. Safety Precautions. 2. Product Specification. General Specification RGB/DVI Spec DTV Mode Spec CHASSIS / FUNTION General Spec. Engineering Spec. 3. Service Mode Adjustment. 4. Firmware upgrade 5. Adjustment Standard 6. Remote Controller(PAL/SECAM) 7. Trouble Shooting - POWER Trouble - SCREEN Trouble - SOUND Trouble 8.

  • Page 3: Safety Precautions

    9. Circuit Diagram - MAIN BOARD - POWER BOARD (SMPS) 10. BOM (Parts List) - MAIN BOARD - POWER BOARD (SMPS) 11. Assembly Diagram 1. Safety precautions * General details 1) When providing service, pay attention to the basic wiring and if you see a short circuit, you must replace all parts overheated or damaged by the short circuit.
  • Page 4 8) Never change the design or add to the design of the device or electric circuit for this set. If you add to the design, it can cause danger to the safety. Also if you change the design or add to the design, the manufacturer’s warranty would be ineffective.

  • Page 5: Product Specification

    6) The voltage should not exceed 0.75V in any location and the current leakage must not exceed 0.75mA. * service precautions 1) When inserting the part or circuit board, you must keep the lead wire fixed to the end before soldering. 2) When inserting the high power resistance, leave about 10mm clearance from the board (metal oxidation coated resistance or metal coated resistance).
  • Page 6 - AV320PD 32” In/Out Analog RGB 15 pin D-Sub Input Video SCART(half) Composite Input * 2 S-Video Input * 1 Component Input * 1 HDMI Input Audio Composite RCA L/R Input * 2 SCART(half) Component RCA L/R Input *1 Headphone Output * 1 PC/DVI Audio Input * 1 RF Signal Antenna...
  • Page 7 800 * 600 35.156 56.25 36.0 VESA 800 * 600 37.879 60.317 40.0 VESA 800 * 600 48.077 72.188 50.0 VESA 800 * 600 46.875 75.0 49.5 VESA 832 * 624 49.726 74.551 57.284 1024 * 768 48.780 60.001 64.11 1024 * 768 48.363 60.004...
  • Page 8 COMPONENT Type RCA Jack (Green, Blue, Red)*1 Mode 480i: 59.94/60Hz, 480p: 59.94/60Hz SD and HD 765i:50Hz, 765p: 50Hz 720p: 59.94/60Hz, 1080i: 50/59.94/60Hz VIDEO INPUT Type CVBS: RCA Jack(yellow)*1, VCB4430 Half SCART *1 VCB4430 SVHS: Mini-Din 4P *1. Auto Select System PAL, SECAM AV OUTPUT Selected TV, Video and Audio Out through SCART...
  • Page 9 ○ ○ ○ ⅹ ⅹ HDMI ○ ○ ○ ⅹ ⅹ ◆ Engineering Specification Item Desc ription Remark For Audio V(Voltage) 11.4 12.6 POWER For Stand-by SUPPLY For Logic For Tuner 32.5 DPMS Sync(V/H) VIDEO Power(V/A) state Stand By, Sleep & Suspend Mode Off/on &...
  • Page 10 0.5±0.05 V rm 0.4±0.05 V rms Video Cross-Talk 3. S ervice mode Adjustment Move to Factory Men u pres sing MENU + MUTE + I/II Button on remote controller. SERVICE MENU VERSION V1.0 Remarks BLE MODE Do not change the value which is currently set. BLE GAIN Do not change the value which is currently set.

  • Page 11: Firmware Upgrade

    B OFFSET Do not change the value which is currently set. SUB CON Do not change the value which is currently set. SUB BRI Do not change the value which is currently set. AUTO COLOR Do not change the value which is currently set. TTX AREA Do not change the value which is currently set.
  • Page 12 3. Uncompress the ISP_update_programmming.zip file. 4. T here are two files in DRIVER folder. - port95nt.exe : Execute po rt95nt.exe when you are using Windows95 Operating System. - setup_LptDrvDev _v020201_XP_2000.exe : Execute setup_LptDrv Dev_v020201_XP_2000.exe When you are using W indows2000 Operating System. 5.
  • Page 13 vctidown -rv > RdVer.txt vctidown -rv > RdVer.txt vctidown -rv > RdVer.txt fc VctF2Ver.txt RdVer.txt if errorlevel 1 goto FAIL vctidown –rv =============================================================== You should make \SrcCode\BinHex\VCB4430_1.bin folder and the name of Firmware(VCB4430 _1.bin) can be redefined by user. The name of the file in the folder and the file in ips.bat must be identical. In addition, the firmware to be updated must be located in the folder of \SrcCode\BinHex.

  • Page 14: Adjustment Standard

    . When download is complete, “success” will be shown on the screen. 5. Adjustment Standard 1. Sc is standard is applicable to all the models of LCD TV with VCB4430 Chassis (main board). 2. S pecification Since this chassis is non-chargeable with insulated power, insulated-type transformer is not required. How ever, n order to protect the adjustment, it is recommended to use insulated-type transformer betw een the power line...
  • Page 15 3) White Balance Adjustment 4) Main/Sub Color Adjustment 4. Adjustment - EDID (The Extended Display Identification Data)/DDC (Display Data Channel) download 1) The information is exchanged without user’s command to PC or monitor since they are specified in VESA. In other words, the function is made for “Plug and Play”...
  • Page 16 . AD9883A-Set adjust Introduction Analog Adjustment for AD9883A-Set => This is a function for the optimal level of black and gain to be automatically set from digital converter and RGB variation to be adjusted. 2) Used Equipment Pattern Generator(capable of generating 720P Vertical 100% Color Bar Patt ern (The pattern type is shown in the following figure and the caution should be used not to confused with 75% color bar which is a similar pattern) and the level of output should be precisely adjusted within 0.7±0.1Vp-p).
  • Page 17 A proper output mode of soun d can be selected as per the type of program being wa tched. .(Custom, Standard, Music, Movi e, Speech) FUNTION EMARK POWER Turns the display On or off NUMBER Direct channel select. Direct page selection Teletext display. TV/AV It converts to TV input mode and, if you press and hold the bu tton,...
  • Page 18 BLUE: Converts to the Page linked to the BLUE key. INPUT Changes the screen size. PIP input source. Changes the screen size. PIP(Small), PIP(La rge), PBP1, PBP2 screen change. SLEEP Sets the sleep timer. The apparatus is automatically turned off SWAP Swaps the main screen for a sub-screen (only in PIP, PBP mode) You can watch the LCD Display in various picture formats, Auto,...

  • Page 19: Trouble Shooting

    7. Trouble Shooting - Power Related Troubles There is NO POWER (Front Panel LED OFF) The Power of Fail SUB POWER Replace SUB POWER BOARD (master SW) BOARD is OK? Pass Fail Check the Connect Connector Connectors Related to Power Pass Check Standby Check...
  • Page 20 - Screen Related Troubles There is NO IMAGE. Fail Power Replace SUB POWER BOARD. SUB POWER BOARD is OK? Pass Check the Fail Connect Connector. connectors Related to Power and Pass Check Standby Check Power ref. Fail Voltage. Voltage: Check Chassis(VCB4430) Check Power CN401 Connector.
  • Page 21 Pass Is the Power of 24V in Fail INVERTER Entered Normally? Replace Power Board POWER BOARD CONNECTOR CN402, Pass CHASSIS의 CONNECTOR POWER BOARD REF. Fail J701 PIN(1) 5V, CN401 PIN(1) 5V, PIN(5) INV ON PIN(9&10) 12V PIN(5) INV ON, PIN(9&10) are OK? 12V are OK? Pass...
  • Page 22 - Sound Related Troubles There is NO SOUND. Pass POWER BOARD REF. Fail Replace Power Board CN401 PIN(1) 5V, PIN(5) INV ON, PIN(9&10) 12V are OK? Pass Fail Check Power of Sound supply. Replace CHASSIS (VBC3002) BOARD Check J701 9,10 24V in VCB4430 BOARD Pass Check Power of Sound supply:...
  • Page 23 8. Block Diagarm...
  • Page 24 9. Circuit Diagram...
  • Page 25 - Main board...
  • Page 32 - POWER BOARD (SMPS)

  • Page 33: Main Board

    10. BOM (Parts List) - Main Board Location Number Part number Parts Name Specification VMT-0072AB PWB(PCB) ASSY,MAIN VCB4430 MAIN TOTAL PWB(PCB) ASSY,MAIN VCB4430 MAIN VMH-0072AB HAND INSERTING BOARD LABEL VCB4450 JACK AUDIO PHONE JACK 3.5PIE J902 NINENEW SJ3501-5 H7 D-SUB 15F- BLUE DSH03A-15F-BU 15P D-SUB 2.29MM FEMALE RIGHT ANGLE J903...
  • Page 34 Al. CAPCITOR/SAMYOUNG 47UF 50V M 6.3*11*2.5 SHL-TYPE C514 C515 C518 C524 C552 Al. CAPCITOR/SAMYOUNG 22UF 50V M 5* 11*2.5 SHL-TYPE C367 C924 C929 C936 C937 C955 Al. CAPCITOR/SAMYOUNG 10UF 50V M 5*11*2.5 SHL-TYPE C174 C176 C339 C602 C729 Al. CAPCITOR/SAMYOUNG 4.7UF 50V M 5*11*2.5 SHL-TYPE C333 C352...
  • Page 35 CAPACITOR, CHIP CERAMIC 20PF 50V J NP0 1608 R/TP C623 C624 CAPACITOR, CHIP CERAMIC 15PF 50V J NP0 1608 R/TP C645 CHIP RESISTOR 0 1/8W J 2012 D.R/TP R529 R530 R547 R551 CHIP RESISTOR 1M 1/10W J 1608 D.R/TP R118 R221 CHIP RESISTOR 120K 1/10W J 1608 D.R/TP...
  • Page 36 R3100 R3101 R3104 R3105 R3112 CHIP RESISTOR 75 1/10W J 1608 D.R/TP R321 R322 R323 R324 R326 R327 R329 R344 R458 R556 R937 R947 R977 R994 R995 R996 R997 R998 R999 CHIP RESISTOR 22 1/10W J 1608 D.R/TP R140 R142 R143 R145 R146...
  • Page 37 WM8725-SOP14 865X600 P127 U103 IC,INTERNATIONAL RECTIFIER IRF7404 20V 3.1A SO-8 U708 U709 P-CHANNEL MOSFET CRISTAL SX-1 SMS, 12MHZ CL 18PF X201 CRISTAL SX-1 SMS, 14.318MHZ CL 18PF Y101 CRISTAL SX-1 SMS, 20.250MHZ CL 18PF X301 IC, TEXAS INSTRUMENT 10W STEREO AUDIO POWER U502 AMPLIFIER TPA3004 QFP48P IC, TEXAS INSTRUMENT...
  • Page 38 - Power Board (SMPS)
  • Page 41 11. Assembly Diagram...
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