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Polaroid FXX-321C manual

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Table of contents for the manual

  • Page 1

    32” HD-LCD TV/DVD Combo with High Definition ATSC Tuner FXM-3211C, FXX-321C SERVICE MANUAL 20060811[...]

  • Page 2

    Important Service and Safety Information Prior to using this service manual, pl ease ensure that you have carefully followed all the procedures outlined in the user's manual for this product. (1) Read all of these instructi ons. (2) Save these instructions. (3) Follow all warnings and instruction s marked on the product. (4) Unplug this produc[...]

  • Page 3

    Important Service and Safety Information Service work should be performed only by qualif ied service technicians fa miliar with all safety checks and these service guidelines: ELECTRIC SHOCK HAZARD Always disconnect AC power before servici ng! Never modify any circuit! Never insert any objects into the holes in the TV case! ELECTROSTATIC DISCHARGE [...]

  • Page 4

    4 Table of Contents 1. Specifications ............................................................................................................................... ....... 5 2. Operation ............................................................................................................................... ............. 7 3. Troubleshootin[...]

  • Page 5

    5 1. Specifications FXM-3211C, FXX-321C Specifications : TFT-LCD Resolution 1366x768 TFT-LCD Screen Size 31.5 inches Laser Wavelength 780/650 nm Video System NTSC Frequency Response 20Hz-20kHz ±2.5 dB Audio Signal-to-noise Ratio ≥ 85dB Audio distortion + noise ≤ 70dB (1kHz) Channel Separation ≥ 70dB (1kHz) Dynamic Range ≥ 80dB (1kHz) Audio[...]

  • Page 6

    Discs Formats Supported By This Player: DISC LOGO CONTENTS SIZE MAXIMUM TIME 133min(SS-SL) 242min(SS-DL) 266min(DS-SL) DVD Audio + Video (movies) 12cm 484min(DS-DL) CD Audio 12cm 74min JPEG Still Photographs 12cm • The operating method of s ome DVD discs is specifi ed by the software maker . Please refer to the instruction manual of the disc. •[...]

  • Page 7

    2. Operation Front and Right View: (1) 31.5" Color TFT screen - Offers a cry stal clear image. (2) INPUT button - Press to en ter the Input menu and then use the  buttons to select mode: Tuner, AV1 (Composite 1), AV2 (Composite 2), A V3 (Component 1), AV 4 (C omponent), VGA, HDMI, DVD , then press the Enter button to enter the selected m[...]

  • Page 8

    Rea r V ie w: (1) Y/Pr(Cr)/Pb(Cb) and L/R audi o Input Jacks - Connectors for the Y/Pr(Cr)/Pb(Cb) input in AV3 (Component) mode. (2) Y/Pr(Cr)/Pb(Cb) and L/R audi o Input Jacks - Connectors for the Y/Pr(Cr)/Pb(Cb) input in AV4 (Component) mode. (3) Video and L/R audio Input Ja ck s - Connectors for the audio and video signal input in AV1 (Composite)[...]

  • Page 9

    Remote Contr ol – General: Installing Batteries Push the back cover to open the ba ttery compartment. Insert two batteries (1.5V , size AAA), please make sure the polarity matches the marks inside the compartment. Press the back cover to close it. Under normal use the batteries will last for six months. Remove the bat teries when the remote will [...]

  • Page 10

    Remote Contr ol – TV Mode: (1) POWER button - Press to enter or exi t the standby mode. (2) 0~9 Number buttons - Press to sele ct numbers. (3) MTS button - In TV mode, press to shif t among SAP, Mono or Stereo mode . (4) VOL +/- button - Pre ss to increase or decrease the volume. (5) MUTE button - Press to turn on or off the speaker output. (6) I[...]

  • Page 11

    Remote Control – DVD Mode: (1)  Play button - Press to play the disc in DVD mode. (2) Pause button - In DVD mode, press to pause the playback or start step frame by frame playback . Press the  PLAY button to resume normal playback. (3)  Fast Reverse button - In DVD mode, press to search backward (4)  Fast Forward button - In DVD mode,[...]

  • Page 12

    Moving the DVD Disc T ray: CAUTION: Before removing or in stalli ng the DVD disc tray, unplug the power sup ply cord. This unit is designed wit h a movable DVD Disc T ray . The Dis c T ray can be installed in three different positions giving you the ability to maximize space and convenie nce. Follow the procedure (below) to remove and reinstall. Re[...]

  • Page 13

    3. Troubleshooting Flow Chart 13 START Power on Does Backlight power on? N Y Does Remote Control work? N 1. Check connection between Remote Board and Main Board 2. Check ATMAGE8 pin 23 3. Check the remote receiver and transfer circuit Y 1. Check connection between Power Board and LCD Module 2. Check Main Board J32 Back light Control Does OSD appear[...]

  • Page 14

    14 A Do channels save correctly? Y N 1. Check CAS-220 2. Check connect circuit between tuner and CAS-220 3. Check control circuit betw een main chip (ZR39660) and CAS-220 Can you change SRS mode? Y N NOTE: Some Inputs don ’ t support SRS mode 1. Check AP8206AA chip 2. Check control circuit be tween main chip and AP8206 Can you change sources? 1. [...]

  • Page 15

    15 4. Display Cell Defect Specification In some cases, a panel may have d efective cells that cannot be contr olled. These defective cells can be categor ized into two types; (1) Non-lighting or dark cell defect: defect in which the c ell is always off (2) Non-extinguishing or bright cell defect: defect in which the cell is always on The display ce[...]

  • Page 16

    5. Before Returning This Product to the User Before returning this product to the user, always perform the following safety checks: (1) Inspect all wiring to be sure no wires are pi nched between the chassis or any metal parts. (2) Inspect all protective devices for prop er installation, incl uding non-metallic contr ols, insulation materials, cabi[...]

  • Page 17

    6. Disassembly Procedure Note: Before disassembly of any part the TV, make sure the power is OFF, and the power cord is removed from the wall outlet. Allow ti me for power within all system boards to discharge before you begin disasse mbly. Ne ver insert any objects into the vent holes in the TV case. Note: Before returning this product to the end [...]

  • Page 18

    Rear Cover Removal (1) Lay TV flat on workbench. Be careful to protect th e front bezel and LCD screen from being scratched. Use protective cloth between work bench and TV front. (2) Remove back covers A, B, and C. (3) Remove DVD Player (A), Cable (B), and Stand Cover (C). 18 A C B A C B[...]

  • Page 19

    (4) Remove six (6) screws from the TV Stand (A) and remove the stand from the TV. (5) Remove all screws from th e back cover (Location A). (6) Remove all screws from th e rear panel label area (A) and remove back cover. (7) Remove screws from the top and bottom of the two baffles and remove the baffles. 19 A A A A A A Baffle Baffle[...]

  • Page 20

    Main Board Rem oval and Replacement (1) DVD Module Board (2) Power Board (3) Main Board (4) Control Button Board (5) Speakers Note: Before disassembly of any part the TV, make sure the power is OFF, and the power cord is removed from the wall outlet. Allow ti me for power within all system boards to discharge before you begin disasse mbly. Ne ver i[...]

  • Page 21

    (3) Disconnect cables on Main Board. (4) Remove all screws from th e Main Bo ard (Location A and B) and remove. Note: Before returning this product to the end user, you must follow the steps outlined in the section, Before Returning This Product to the User , on page 16 . This procedure ensures that the chassis will not cause electric shock. 21 A B[...]

  • Page 22

    Control Button Board Removal and Replacement (1) DVD Module Board (2) Power Board (3) Main Board (4) Control Button Board (5) Speakers Note: Before disassembly of any part the TV, make sure the power is OFF, and the power cord is removed from the wall outlet. Allow ti me for power within all system boards to discharge before you begin disasse mbly.[...]

  • Page 23

    DVD Module Board Removal and Replacement (1) DVD Module Board (2) Power Board (3) Main Board (4) Control Button Board (5) Speakers Note: Before disassembly of any part the TV, make sure the power is OFF, and the power cord is removed from the wall outlet. Allow ti me for power within all system boards to discharge before you begin disasse mbly. Ne [...]

  • Page 24

    Power Board Removal and Replacement (1) DVD Module Board (2) Power Board (3) Main Board (4) Control Button Board (5) Speakers Note: Before disassembly of any part the TV, make sure the power is OFF, and the power cord is removed from the wall outlet. Allow ti me for power within all system boards to discharge before you begin disasse mbly. Ne ver i[...]

  • Page 25

    IR / Power LED Board Removal and Rep lacement (1) DVD Module Board (2) Power Board (3) Main Board (4) Control Button Board (5) Speakers Note: Before disassembly of any part the TV, make sure the power is OFF, and the power cord is removed from the wall outlet. Allow ti me for power within all system boards to discharge before you begin disasse mbly[...]

  • Page 26

    26 7. Spare Parts List – FXM-3211C, FXX-321C Part Number Description 2713C FXM-26,32,FXX-321C MAIN BOARD MLT-286A FXM-3211C, FXX-321C POWER BOA RD 2635C FXM, FXX IR/POWER LED BOARD E320C 32" LCD PANEL CMO 00 Interchangeable with E320C01 E320C01 32" LCD PANEL CMO 01 Interchangeable with E320C E090 FXM, FXX MID SPEAKER L-R E091 FXM, FXX T[...]

  • Page 27

    8. Exploded View Diagram – FXM-3211C, FXX-321C 27[...]

  • Page 28

    9. Block Diagrams – FXM-3211C, FXX-321C 28 Power Supply Zoran ZR39660BGCG (Main Chip) Video input ports Two FSAV330 Switch One FSAV331 Switch Y /Pb/Pr RGB,CVBS Y /C Tuner CVBS OREN CAS-220/CS ATSC Digit Signal MST9883 B-C(ADC) A udio Input SIF T wo CD4052 Switch AP62060 (SRS) TDA8932T (AMP) Y /Pb/Pr RGB,CVBS Y /C 32M Flash Rom 256DDRRAM*2 LVDS[...]

  • Page 29

    Video Signal Processing Block Diagram 29 Power on Input signal set to Tuner or Composite? N Y Input signal set to HDMI? N Input signal set to Component or VGA Process Circuit Y Y Process Circuit Process Circuit MST9883 ADC ATSC digital signal Y Oren CAS-220 N FMS6408 ZR39660 (Main Chip) DDR333 RAM 512M (256M*2) SDRAM 32M LVDS Switch Chip FSAV330/33[...]

  • Page 30

    10. Schematic Diagrams – FXM-3211C, FXX-321C Tuner 30[...]

  • Page 31

    Audio I/O 31[...]

  • Page 32

    Video I/O 32[...]

  • Page 33

    HDMI I/O 33[...]

  • Page 34

    1394 34[...]

  • Page 35

    Module Board 35[...]

  • Page 36

    Front Panel Conn ectors Backlight 36[...]

  • Page 37

    IR Board Reset Circuit 37[...]

  • Page 38

    11. PCB Layout Diagrams Main Board (Top View) 38[...]

  • Page 39

    Main Board (Bottom view) 39[...]

  • Page 40

    Control Button boar d top view Control Button boar d bottom view Remote board top vi ew Remote board bottom view DVD Module board top v iew DVD Module board bot tom view 40[...]