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Daewoo DPX-42D1 Service Manual - Main Pcb Trouble Diagnosis

Manual is about: 42” PLASMA PDP TV

Summary of DPX-42D1

  • Page 1

    1 dpx-42d1nmsb dpx-42d1 pasp42b3d3s0 42” plasma pdp tv s/m no : pasp42b001.

  • Page 2: Contens

    2 contens 1. Safety precautions 2. Product specification 2-1. Dpx-42d1nmsb product specification 2-2. Available input signal 3. Block diagram 3-1. Basic block diagram 3-2. Panel block diagram 4. A/v block diagram 5. Description of power pcb 5-1. Input/output pin assignment & specification 5-2. Outpu...

  • Page 3: 1.Safety Precautions

    3 1.Safety precautions (1) when moving or laying down a pdp set, at least two people must be working. Avoid any impact towards the pdp set. (2) do not leave the broken pdp set on for a long time. To prevent any further damages, after check the broken sets condition, make sure to turn the power (ac) ...

  • Page 4: 2. Product Specification

    4 2. Product specification composite(ntst, pal, secam, pal-m/n,ntsc4.43) 2sets & s-vhs(50/60hz) 1set 1080 i, 720p, 480p , 480i, 576p, 576i (y, pb/cb, pr/cr component signal) 2 sets 15pin d-sub 1 set (1280 x 1024 60hz max.) hdmi 1 set ntsc, pal-m/n one input 75 Ω unbalanced (f-standard) vhf low : 48....

  • Page 5: Product Specification

    5 42 inches(106.68 cm) 16:9 852(h)x480(v) 16.77million color( rgb 8bit) 1080㎛ x 1080㎛ x rgb 160degree(vertical/horizontal) 4. Optical 4-1. Screen size 4-2. Aspect ratio 4-3. Number of pixels 4-4. Display color 4-5. Cell pitch 4-6. Viewing angle ch+ / ch- / vol+ / vol- / av power, mute, tv, pc/hdmi, ...

  • Page 6: Product Specification

    6 product specification 2-2. Available input signal.

  • Page 7: 3. Block Diagram

    7 3. Block diagram power board main/av board panel m+7v d+3.3v a+12v a+6v power mute ac input ac100~240v 50/60 hz power lvp vs (170v ~ 190v) va (60v ~65v) vcc (+5v) display lvds out 3-1. Basic block diagram.

  • Page 8: Block Diagram

    8 input interface controller memory controller driver timing controller display data driving display data (lvds input) ra+ ra- rb+ rb- rc+ rc- rd+ rd- rclk+ rclk- scan driver color plasma display panel 852 x 480 pixels common sustain driver address driver block diagram 3-2. Panel block diagram.

  • Page 9: 4. A/v Block Diagram

    9 4. A/v block diagram.

  • Page 10: 5. Description of Power Pcb

    10 5. Description of power pcb 5-1. Input/output pin assignment & specification output connector input connector.

  • Page 11: 5. Description of Power Pcb

    11 5-2. Output specification output voltage & load condition 5. Description of power pcb.

  • Page 12: 6. Service Mode

    12 6-1. Entering methode of service mode 1 => mute => (recall ) => mute button on the remote control (you can exit from service mode by press power button on the remote control) 6-2. Default value of service mode (1) default value of color control (2) calibration mode do not adjust. (3) option table...

  • Page 13: 7. Adjusting Method

    13 7-1. Adjusting white balance (1) input 5 step gray scale pattern to video input terminal. (2) set the screen mode to normal. (3) enter service mode by inputting remote controllers [“1” => “mute” => “recall”=> “mute” button], and then select “color control” and check default values of service mode...

  • Page 14: Adjusting Method

    14 adjusting method 7-2 power board adjustment (1) turn on the pdp tv and display full white pattern (2) check the voltage label (3) check the voltage by using multimeter each test point (4) adjust the each voltage very slowly, witted voltage at the label voltage label test point adjust volume.

  • Page 15: 8. Software Upgrade Method

    15 8-1. Preparation (1) ibm pc with serial port (d-sub 9 type) (with windows98, windows me, windows nt, windows 2000, windows xp) (2) update cable (d-sub 9 pin mail to phone jack) 8-2. Upgrade method (1) check the com port is available. If com port is not available, you must install com port. 8. Sof...

  • Page 16: Software Upgrade Method

    16 software upgrade method (6) select upgrade folder by pressing button and select firmware folder (7) select com port and baud rate(1152000) (8) select ware3.Inf..

  • Page 17: Software Upgrade Method

    17 software upgrade method (9) press the button and plug in power code to pdp’s power inlet. (10) when all files upgrade are complete, “download successful” (below) will come out. (11) check firmware version and reset pdp tv. * reset method 1. Turn on the tv 2. Enter service mode(1 -> mute -> recall...

  • Page 18

    18 9. Set disassemble/assemble method 9. Set disassemble/assemble method .9-1. Facts you must know when disassembling/assembling pdp set (1) the sheet must be clean, smooth and thick enough to reduce any impact which might occur while handling. (2) back cover can’ t be opened without separating the ...

  • Page 19

    19 check start does “no signal” screen appear? Is the signal input jack correctly connected? Does input source (av device) operate? Is input selection in used mode? Check the connection of jack (pdp or av device) check a/v device function confirm input selection is there a weak discharge on the scre...

  • Page 20: Main Pcb Trouble Diagnosis

    20 check start led light is appear? Dose pdp tv turn on by use remocone? Check the key lock function 1. Change ir_led pcb 2. Change video pcb 1. Change key pcb 2. Change video pcb no on yes yes 1. Check the connection of key_led_ir cable 2. Change the key_led_ir cable 3. Change ir_led pcb 4. Change ...

  • Page 21: 11. Trouble Shooting

    21 11. Trouble shooting 11-1. Facts you must know when trouble diagnosis or repairing (1) sets trouble diagnosis and repairing means module exchange. In other words, find out which pcb modules are not working and replace them with normal pcb modules. Do not need to fix broken pcb modules in themselv...

  • Page 22: 12. Assembly List

    22 12. Assembly list 4 1.5t*7w*100l gasket mount dp4260s655a 40 1 1.5t*7w*565l gasket av cover dp4260s654a 39 2 1.5t*7w*945l gasket retainer-h dp4260s652a 38 2 1.5t*7w*540l gasket retainer-v dp4260s651a 37 2 sponge form/5.0t*520l*8w side cushion dp4250r672a 36 2 sponge form/5.0t*895l*8w top cushion ...

  • Page 23: Assembly List

    23 assembly list 4 s/w p/w-p+5*32 machine screw 5 sm200 80 4 t*4*12 machine screw 4 sm011 79 11 t/s-2b+4*10 taptite screw 4 st140 78 43 t/s-2b+4*10 taptite screw 4 st140 77 44 t/t-bp+4*8 taptite screw 4 st104 76 11 t/t-bp+3*8 taptite screw 4 st101 75 20 twp+3*8 taptite screw 3 st108 74 4 twp+3*6 tap...

  • Page 24: Assembly List

    24 assembly list 2 battery dpc9700000a(aaa) 86 1 remote controller re-blsidewa1 87 1 pdp pioneer 42" b3 panel pdp panel 42"-pio b3 dp42b3mf01 88 1 power code dpacc0000-10(europe) 85 1 user manual ma-bdwp--3s1 84 1 paper back label pbl4260dae-01 83 2 p+8*20 machine screw 8 sm008 82 2 s/w p/w p+5*16 m...

  • Page 25: 13. Exploded View

    25 13. Exploded view.

  • Page 26: 14. Assemble Diagram

    26 14. Assemble diagram.

  • Page 27: Assemble Diagram

    27 assemble diagram.

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    28 assemble diagram.

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    29 assemble diagram.

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    30 assemble diagram.

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    31 assemble diagram.

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    32 assemble diagram.

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    33 assemble diagram.

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    34 assemble diagram.

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    35 assemble diagram.

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    36 assemble diagram.

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    37 assemble diagram.

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    38 assemble diagram.

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    39 assemble diagram.

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    40 assemble diagram.

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    41 assemble diagram.

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    42 assemble diagram.

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    43 assemble diagram.

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    44 assemble diagram.

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    45 assemble diagram.

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    46 assemble diagram.

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    47.

  • Page 48: Assemble Diagram

    48 assemble diagram.

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    49 assemble diagram.

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    50 assemble diagram.

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    51 assemble diagram.

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    52 assemble diagram.

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    53 assemble diagram.