Yamaha-PDM-4220-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL 100985 SERVICE MANUAL I Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 I Connection diagram . . . . . . . . . . . . . . . . . . . . . . .36 I Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .37 I Disassembly diagram . . . . . . . . . . . . .

2、 . . . . . . . . .39 I Replacement parts list . . . . . . . . . . . . . . . . . . . . .41 I Diagnosis of the panel module . . . . . . . . . . . . .42 I CONTENTS I Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 I Specifications . . . . . . . . . . . . . . . . . . . . .

3、. . . . . . . .3 I Service points . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 I Component names . . . . . . . . . . . . . . . . . . . . . . . . .5 I Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 I Troubleshooting . . . . . . . . . . . . . . . . . . . . . .

4、. . . .22 I Self diagnosis function . . . . . . . . . . . . . . . . . . . .32 PLASMA MONITOR PDM-4220 PDM-4220 Be sure to read this manual before servicing. To assure safety from fi re, electric shock, injury, harmful radiation and materials, various measures are provided in this Plasma display. Be

5、sure to read cautionary items described in the manual to maintain safety before servicing. Caution 1. Since Panel Module and front Filter are made of glass, handling the broken Module and Filter shall be taken care suffi ciently in order not to be injured. 2. Replacing work shall be started after th

6、e Panel Module and the AC/DC Power supply become suffi ciently cool. 3. Special care shall be taken to the display area in order not to damage its surface. 4. The Panel Module shall not be touched with bare hand to protect its surface from stains. 5. It is recommended to use clean soft gloves during

7、 the replacing work in order to protect not only the dis- play area of the Panel Module but also a serviceman himself. 6. The Chip Tube of Panel Module (located upper left of the back and surrounded by frame) and fl exible cables connecting Panel glasses to drive circuit PWBs are very weak, so shall

8、 be taken care suffi ciently not to break. If you break Chip Tube, the Panel doesnt display anything forever. Service Warning 2005 YAMAHA CORPORATION. All rights reseved. This manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission.

9、 05.10 RadioFans.CN 收音机爱 好者资料库 2 PDM-4220 PDM-4220 PRECAUTIONS How to clean the plasma screen panel of the monitor Before cleaning the monitor, turn off the monitor and disconnect the power plug from the power outlet. To prevent scratching or damaging the plasma screen face, do not knock or rub the

10、surface with sharp or hard objects. Clean the screen with a soft cloth moistened with warm water and dry with a soft cloth. If it is not enough, then use a cloth with mild detergent. Do not use harsh or abrasive cleaners. How to clean the cabinet of the monitor Use a soft cloth to clean the cabinet

11、and control panel of the monitor. When excessively soiled dilute a neutral detergent in water, wet and wring out the soft cloth and afterward wipe with a dry soft cloth. Never use acid/alkaline detergent, alcoholic detergent, abrasive cleaner, powder soap, OA cleaner, car wax, glass cleaner, etc. es

12、pecially because they would cause discoloration, scratches or cracks. Large-screen, high-definition plasma display panel The 42-inch color plasma display panel, with a resolution of 1024 (H) x 1024 (V) pixels, creates a high-definition, large-screen(aspect ratio : 16:9) and low-profile flat display.

13、 Free from electromagnetic interferences from geomag- netic sources and ambient power lines, the panel produces high-quality display images free from color misconver- gence and display distortion. High Performance Digital Processor A wide range of input signals can be handed,including composite, com

14、ponent,and HDMI.High Definition Digital Pro- cessor creates the fine-textured image with dynamic contrast. In addition, it corresponds to a broad array of per- sonal computer signals, from 640 x 400 and 640 x 480 VGA to 1600 x 1200 UXGA.(Analog Input) Easy-to-use remote control and on screen display

15、 system The remote control included eases the work of setting display controls. Further, the on-screen display system, displays the status of signal reception and display control settings in an easy-to-view fashion. Power saving system When connected to a VESA DPMS-compliant PC, the monitor cuts its

16、 power consumption while it is idle. Connecting to an Audio Visual Device Three SCART terminals, a composite/S Terminal*1, a component terminal*2, a HDMI terminal and have been added. A composite video output terminal is also provided as a monitoring output. *1 A composite/S terminal = A side input

17、A wide range of devices other than personal computers can also be connected. A RGB input is possible to switch to component signal from the Menu screen. Power Swivel Feature It allows to turn the plasma display left or right within 30 degree using the remote control. I Features RadioFans.CN 收音机爱 好者资

18、料库 3 PDM-4220 PDM-4220 Panel Ambient conditions Power supply Power consumption/at standby Audio output (RGB input) Input terminals Input terminals Input terminals RF Video System Input signals Input signals Sync signals (RF input) (Video input) Output Signal Temperature Relative humidity Net dimensi

19、ons (excluding Speakers/Stand) Net weight (excluding Speakers/Stand) Resolution Display dimensions Operating : 5 C to 35 C, Storage : 0 C to 40 C Operating : 20% to 80%, Storage : 20% to 90% (non-condensing) AC100 - 240V, 50/60Hz RGB1 DVI input terminal (DVI-D) RGB1 audio input terminal (3.5mm Stere

20、o Mini Jack) RGB2 analog RGB input terminal (D-sub 15-pin) RGB2 audio input terminal (3.5mm Stereo Mini Jack) 0.7 V/1.0 Vp-p, analog RGB (Recommended Signal) 480i, 576i, 480p, 576p, 1080i/50, 1080i/60, 720p/50*1, 720p/60 H/V separate, TTL level 2K H/V composite, TTL level 2K Sync on green, 0.3 Vp-p

21、75 ANT : 75 Unbalanced PAL B, G, H / I / D, K SECAM B, G / K1 / L, L / (D, K)*2 OUTPUT (MONITOR): composite video monitor-output terminal (RCA) OUTPUT (MONITOR): L/R audio monitor- output terminal (RCA) OUTPUT (HEADPHONE): L/R audio monitor- output terminal (3.5mm Stereo Mini Jack) 1030 (W) x 636 (H

22、) x 104 (D) mm 1024(H) x 1024 (V) pixels Approx. 42 inches (922 (H) x 522 (V) mm,diagonal 1059mm) 36.0kg 380W / 3W speaker 12W + 12W (6) AV1: composite video/S video/L/R audio input terminal (SCART) AV2: composite video/RGB/L/R audio input terminal (SCART) AV3: composite video/RGB/L/R audio input te

23、rminal (SCART) AV4: composite video/Y/PB/PR video/L/R audio input terminal (RCA) AV5: composite video/S video/L/R audio input terminal (RCA) AV6: HDMI input terminal AV1: PAL, SECAM, NTSC3.58, NTSC4.43 AV2: PAL, SECAM, NTSC3.58, NTSC4.43, RGB AV3: PAL, SECAM, NTSC3.58, NTSC4.43, RGB AV4: PAL, SECAM,

24、 NTSC3.58, NTSC4.43 AV4: 480i, 576i, 480p, 576p, 720p/50, 720p/60, 1080i/50, 1080i/60, AV5: PAL, SECAM, NTSC3.58, NTSC4.43 AV6: HDMI input signal Applicable video signals for each input terminal TerminalRCA/S-video/SCARTDVID-sub SignalCVBSS-videoComponentSCART (RGB)PCSTBRGBComponent AV1 AV2 AV3 AV4

25、AV5 AV6 ( :Available) HDMI RGB1 RGB2 *1 720/50 is supported by RGB1(DVI-STB) *2 The SECAM D,K system might not be normally received, depending on the model. I Specifications 4 PDM-4220 PDM-4220 Lead free solder This product uses lead free solder (unleaded) to help preserve the environment. Please re

26、ad these instructions before attempting any soldering work. Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder can splatter at high temperatures (600 C). Lead free solder indicator Printed circuit boards using lead free solder are engra

27、ved with an F. Properties of lead free solder The melting point of lead free solder is 40-50 C higher than leaded solder. Servicing solder Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended. Although servicing with leaded solder is possible, there are a few precautions tha

28、t have to be taken. (Not taking these precautions may cause the solder to not harden properly, and lead to consequent malfunctions.) Precautions when using leaded solder Remove all lead free solder from soldered joints when replacing components. If leaded solder should be added to existing lead free

29、 joints, mix in the leaded solder thoroughly after the lead free solder has been completely melted (do not apply the soldering iron without solder). Servicing soldering iron A soldering iron with a temperature setting capability (temperature control function) is recommended. The melting point of lea

30、d free solder is higher than leaded solder. Use a soldering iron that maintains a high stable temperature (large heat capacity), and that allows temperature adjustment according to the part being serviced, to avoid poor servicing performance. Recommended soldering iron: Soldering iron with temperatu

31、re control function (temperature range: 320-450 C) Recommended temperature range per part: PartSoldering iron temperature Mounting (chips) on mounted PCB320 C30 C Mounting (chips) on empty PCB380 C30 C Chassis, metallic shield, etc.420 C30 C FILTER PWB, SW PWB, LED/RECEIVER PWB, SP TERMINAL(L/R) PWB

32、 AUDIO PWB, JOINT PWB, Swievel PWB, HDMI PWB, control PWB VIDEO PWB TUNER PWB The PWB assembly which has used lead free solder Readjustment Power supply voltage When a PANEL or a Power Unit is exchanged, power supply voltage needs to be adjusted. Please adjust to make the values of Va and Vs of as s

33、hould on the label currently stuck on the panel back upper parts.Adjust- ment is performed by VR in the power supply unit. Please refer to the procedures of Va and Vs adjustments on 17page. I Service points 5 PDM-4220 PDM-4220 ( ) indicates the function while the MENU is displayed on the screen. Rem

34、ote-control receiver Indicating lamp Menu button INPUT SELECT button (OK button) CHANNEL UP/DOWN buttons (SELECT button) SUB-POWER button VOLUME UP/DOWN buttons ( ADJUST buttons) Adjustment buttons are located on the bottom. The back cover is provided with indications to distinguish the adjustment b

35、uttons. The main power switch is located at the back, on the lower surface. Main power switch Main unit Remote control STANDBY/ON RECALL TV DVD /Ii+ AV 1AV 2AV 3AV 4 AV 5 MENU VOLPROG A. MODEP. MODE RETURN AV 6RGB 1RGB 2 23 456 78 0 9 ? i I/II 2-4-12 1 OK + P+ P I Component names 6 PDM-4220 PDM-4220

36、 How to get to Adjustment mode Using the front control buttons with the set turned off (standby) can activate it. Press the SUB-POWER() button, INPUT SELECT() button and button at the same time, and hold for more than 5 seconds. The set turns on in adjustment mode with OSD. Changing data and Selecti

37、ng Adjustment code When the set is in adjustment mode, the cursor , , , and OK buttons of the remote control or front panel may be used as the adjustment keys. , buttons are used for selecting adjustment code. , buttons are used for changing data values. OK button is used for confirming the data. Af

38、ter finishing the necessary adjustment press MENU button. Adjustment mode is released and the set returns to normal condition. Memory Initialize operation NOTE: The execution of this function returns the adjustment codes to the preset values, therefore, adjustment data will be lost. Procedure (1) En

39、ter Adjustment Mode. (2) Select MEMORY INIT adjustment code (No.658) and change the data value from 0 to 1. (3) Activate MEMORY INIT by pressing OK button for more than 3 seconds. (4) Select No.525 and change data value from 1 to 0. (5) Check that the receiving channel goes to P1. Unit is set to pre

40、set values. I Adjustment 7 PDM-4220 PDM-4220 Service adjustment items by I2C-bus control (MAIN Part) : shoule be adjusted : should be followed previous data ADJFunctionMax.Default No value FORMATTERVIDEOTUNERPDP ADJ. ItemsModePWBPWBPWBPANEL 0 SUB_CONTRAST (RF)Main158 1 SUB_CONTRAST (AV1)Main/Sub Com

41、posite mode158 2 SUB_CONTRAST (AV2)Main/Sub Composite mode158 3 SUB_CONTRAST (AV3)Main/Sub Composite mode158 4 SUB_CONTRAST (AV4)Main/Sub Composite mode158 5 SUB_CONTRAST (AV5)Main/Sub Composite mode158 6 SUB_CONTRAST (RF)Sub158 7 Sub ColorMain158 8 Sub ColorSub158 9 TINT (RF)Main6333 10 TINT (VIDEO

42、)Main6333 11 TINT (RF)Sub6333 12 TINT (VIDEO)Sub6333 13 Free 14 Free 15 Free 16 Free 17 Reference Amplitude(RGB_AMP)RF/VIDEO254127 18 Reference Amplitude(RGB_AMP)PC254127 19 Reference Amplitude(RGB_AMP)Multi Picture mode254130 20 Display for Max. Amplitude LevelMain- 21 Display for Max. Amplitude Le

43、velSub- 22 Offset Value(+/-) of Upper Limit (for FC :RGB-AMP )Multi Picture mode182 23 Offset Value(+/-) of Upper Limit (for TB1274:SUB-CONT)Single Picture mode182 24 Offset Value(+/-) of Upper Limit (for TB1274:Sub Color)182 25 Terget value of White peak Adj.Single Picture mode237235 26 Terget valu

44、e of Color Level Adj. (for TB1274:Sub Color)237235 27 Set Blue Gamma gain On/Off 0:Off, 1:On (For 55V)For 55V11 28 Contrast mode SW (TV) 0:Dynamic, 1:Dynamic+AutoRF11 29 Select for WIDE Mode11 30 PinP Function (for PC) 0:PinP, 1:Infomation1, 2:Infomaiton Split20 31 Black Level(RGB_AMP)RF/VIDEO254127

45、 32 Black Level(RGB_AMP)PC254127 33 Black Level(RGB_AMP)HDMI254127 34 Black Level(RGB_AMP)For USA NTSC/480i254127 35 YNR Input Level for AV1-5 ModeRF77 36 YNR Input Level for AV1-5 ModeVIDEO77 37 YNR Input Level for AV1-5 ModeScart-RGB(50/60Hz)77 38 YNR Input Level for AV1-5 Mode480i/576i77 39 YNR I

46、nput Level for AV1-5 Mode480p/576p77 40 YNR Input Level for AV1-5 Mode1080i-50/60/720p77 41 YNR Input Level for DVI-STV Mode480i/480p/576i/576p/VGA77 42 YNR Input Level for DVI-STV Mode1080i-50/60/720p77 43 CNR Input Level at Low level for AV1-5 ModeRF/VIDEO74 44 CNR Input Level at Low level for AV1

47、-5 ModeScart-RGB(50/60Hz)74 45 CNR Input Level at Low level for AV1-5 Mode480i/576i74 46 CNR Input Level at Low level for AV1-5 Mode480p/576p74 47 CNR Input Level at Low level for AV1-5 Mode1080i-50/60/720p74 48 CNR Input Level at Low level for DVI-STV Mode480i/480p/576i/576p/VGA72 49 CNR Input Leve

48、l at Low level for DVI-STV Mode1080i-50/60/720p72 50 CNR Input Level at Low level for Dsub Comp. Mode480i/576i72 51 CNR Input Level at Low level for Dsub Comp. Mode480p/576p72 52 CNR Input Level at Low level for Dsub Comp. Mode1080i-50/60/720p72 53 main/sub YFRNR level MYNRP0NTSC/PAL/Multi picture71

49、 54 main/sub YFRNR level MYNRP5NTSC/PAL-VIDEO70 55 main/sub YFRNR level MYNRP6Scart-RGB(50/60Hz)70 56 main/sub YFRNR level MYNRP670 57 main/sub YFRNR level MYNRP770 58 main/sub YFRNR level MYNRP870 59 main/sub CFRNR level MCNRP0NTSC/PAL/70 60 main/sub CFRNR level MCNRP5NTSC/PAL-VIDEO70 61 main/sub CFRNR level MCNRP6Scart-RGB(50/60Hz)70 62 main/sub CFRNR level MCNRP6480i/576i70 63 main/sub CFRNR level MCNRP7480p/576p70 64 main/sub CFRNR level MCNRP81080i-50/60/720p70 65 B-Y/BR-Y/R (VER. Enhancer Gain)CVEG0