Yamaha PDM-4220 Service Manual
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Yamaha PDM-4220 Service Manual

Yamaha PDM-4220 Service Manual

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PDM-4220
Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury, harmful radiation
and materials, various measures are provided in this Plasma display.
Be sure to read cautionary items described in the manual to maintain safety before servicing.
1. Since Panel Module and front Filter are made of glass, handling the broken Module and Filter shall be
taken care sufficiently in order not to be injured.
2. Replacing work shall be started after the Panel Module and the AC/DC Power supply become sufficiently
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 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 flexible
cables connecting Panel glasses to drive circuit PWBs are very weak, so shall be taken care sufficiently
not to break. If you break Chip Tube, the Panel doesn't display anything forever.
CONTENTS
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Service points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Component names . . . . . . . . . . . . . . . . . . . . . . . . . 5
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Self diagnosis function . . . . . . . . . . . . . . . . . . . . 32
© 2005 YAMAHA CORPORATION. All rights reseved.
1 0 0 9 8 5
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically without permission.
PLASMA MONITOR
SERVICE MANUAL
SERVICE MANUAL
Caution
Service Warning
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Connection diagram . . . . . . . . . . . . . . . . . . . . . . . 36
Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Disassembly diagram . . . . . . . . . . . . . . . . . . . . . . 39
Replacement parts list . . . . . . . . . . . . . . . . . . . . . 41
Diagnosis of the panel module . . . . . . . . . . . . . 42
'05.10

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  • Page 1: Table Of Contents

    Self diagnosis function ....32 © 2005 YAMAHA CORPORATION. All rights reseved. 1 0 0 9 8 5 This manual is copyrighted by YAMAHA and may not be copied or redistributed either in print or electronically without permission. ’05.10...

  • Page 2: Features

    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 surface with sharp or hard objects.

  • Page 3: Specifications

    PDM-4220 Specifications Display Approx. 42 inches (922 (H) x 522 (V) mm, diagonal 1059mm) dimensions Panel Resolution 1024(H) x 1024 (V) pixels Net dimensions 1030 (W) x 636 (H) x 104 (D) mm (excluding Speakers/Stand) Net weight 36.0kg (excluding Speakers/Stand) Operating : 5 °C to 35 °C, Storage : 0 °C to 40 °C...

  • Page 4: Service Points

    PDM-4220 Service points Lead free solder This product uses lead free solder (unleaded) to help preserve the environment. Please read 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).

  • Page 5: Component Names

    PDM-4220 Component names [Main unit] • Adjustment buttons are located on the bottom. • The back cover is provided with indications to distinguish the Remote-control adjustment buttons. receiver Indicating lamp •The main power switch is located at the Menu button back, on the lower surface.

  • Page 6: Adjustment

    PDM-4220 Adjustment • 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.
  • Page 7 PDM-4220 Service adjustment items by I C-bus control (MAIN Part) : shoule be adjusted : should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 0 SUB_CONTRAST (RF) Main 1 SUB_CONTRAST (AV1)
  • Page 8 PDM-4220 : shoule be adjusted : should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 100 Free 101 Free 102 Free 103 Free 104 Free 105 Free 106 Free 107 Free...
  • Page 9 PDM-4220 : shoule be adjusted : should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 200 Cb offset1 Main 201 Free 202 Cr offset1 Main 203 Free 204 Cb offset1 205 Free...
  • Page 10 PDM-4220 : shoule be adjusted : should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 300 2D-YNR Lim 301 BLK EXP 302 CKILL 303 Output Clamp 304 Input Clamp auto 305 Int Clamp Manual...
  • Page 11 PDM-4220 : shoule be adjusted : should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 400 ACSESET Except NTSC3.58 401 ACSFSET Except NTSC3.58 402 AYMESET Except NTSC3.58 403 AYMFSET Except NTSC3.58 404 AYSESET Except NTSC3.58...
  • Page 12 PDM-4220 : shoule be adjusted : should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 497 VCORA : VCO range select 498 CRNTA : change pump current select 499 TESTA : Matching Test to allow increment of stability counter.
  • Page 13 PDM-4220 : shoule be adjusted : should be followed previous data Function Max. Default Changed Component value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 592 Upper Limits Value for Sync Detect of 2ms interval For Free Running at AV mode...
  • Page 14 PDM-4220 Service adjustment items by I C-bus control (SUB adjust menu) (*The change to a sub menu. press "ok" key after no.659 with a main menu) : shoule be adjusted : should be followed previous data Function Max. Default Changed Component...
  • Page 15 PDM-4220 : shoule be adjusted : should be followed previous data Function Max. Default Changed Component Value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 92 Horizontal Coring Level [HECOR1] NTSC-RF 93 (Enhancer Gain ) [HECOR2] PAL-RF/ Multi picture [HECOR3] NTSC-VIDEO...
  • Page 16 PDM-4220 : shoule be adjusted : should be followed previous data Function Max. Default Changed Component Value FORMATTER VIDEO TUNER ADJ. Items Mode PANEL 184 Menu Init. Color Temp.(Cool[0]/Normal[1]/Warm[2]/B&W[3]) For Dynamic 185 Menu Init. Color Temp.(Cool[0]/Normal[1]/Warm[2]/B&W[3]) For Natural 186 Menu Init. Color Temp.(Cool[0]/Normal[1]/Warm[2]/B&W[3]) For Cinema 187 Menu Init.
  • Page 17 PDM-4220 Item Power Unit Vs, Va Adjustment Applicable Model All models Preparation Procedure (1) Turn on the set and perform (1) Turn Vs ADJ to adjust Vs voltage to be within ±0.1V of the value pre-heat run more than 1 min on burn-in screen.
  • Page 18 PDM-4220 RGB Amplitude Adjustment (PC D-Sub input) Item Applicable Model All models Preparation Procedure Input RGB amplitude adjustment signal of VGA Receive PC signal (VGA [60Hz]), and indicate Service Adjustment Menu.(Main) (60Hz) into RGB2 [D-sub] terminal. Select No.652 of Service Adjustment Menu.
  • Page 19 PDM-4220 Video Color Temperature Adjustment (Cool) Item Applicable Model All models Adjustment Preparations Adjustment Procedures Perform the following adjustment with the remote Set the signal generator output as All White. control Component signal (480i) Set the CRT color analyzer (CA100) at the center Video level : 0.700Vp-p...
  • Page 20 PDM-4220 Video Color Temperature Adjustment (Normal) Item Applicable Model All models Preparation Procedure (1) Set signal generator output as Perform the following adjustment with the remote All White (Window ratio: 100%). control. (2) Component signal (480i) Set the CRT Color Analyzer (CA-100) at the center Video level : 0.700Vp-p...
  • Page 21 PDM-4220 Video Color Temperature Adjustment (B&W) Item Applicable Model All models Preparation Procedure Set signal generator output as All White Perform the following adjustment with (Window ratio: 100%). the remote control. Component signal (480i) Set the CRT Color Analyzer (CA-100) at Video level : 0.700Vp-p...

  • Page 22: Troubleshooting

    PDM-4220 Troubleshooting How to get to Burn-in mode This mode displays the test patterns of some single color raster in turn. These signals are from built-in generator of PDP panel. So it can be presumed that maybe the panel has some trouble when the screen of Burn-in mode is abnormal.
  • Page 23 PDM-4220 Power Power cannot be turned on (LED does not light) Is the input voltage applied to Power supply unit? (CN61 AC Fuse Filter PWB AC inlet Power switch F902 T6.3AH 250V Are the voltages applied to CN63 pins and CNPPS...
  • Page 24 PDM-4220 Teletext [Tuner PWB Circuit] No Teletext Are waveforms at QT03(E),QT04(E) and QT05(E) Check PTV2 connector or Video PWB Are waveforms at pin 46,47,48 of IT01 Check QT03,QT04,QT05 Is waveform at pin 31 of IT01 (TV,CV)? Check around IT01 Is waveform at...
  • Page 25 PDM-4220 TV Signal [Tuner PWB Circuit] No Picture of TV Is waveform at Check pin 49 of PTV2 Video PWB (TV,CV?) Is waveform at pin 7 of I101 (TV,CV)? Check Q106 Is waveform at pin 18 of U101 (TV,CV)? Check around...
  • Page 26 PDM-4220 TV Sound [Tuner PWB Circuit] No sound of TV Are waveforms at pin 30,31 of IN01(L,R)? Check PTV2 connector or Video PWB Is waveforms at Is voltage at pin 22 of IN01 pin 2 of IN01 ("H")? (SIF)? Check...
  • Page 27 PDM-4220 Picture [Video PWB Circuit] No picture, no color or dark YES (Sub picture) YES (NTSC/PAL<RF/Composite Video>) NTSC or PAL ? Sub picture ? <RF/Composite Video> Trouble of Sub picture (Single picture or Main) (S-Video/SECAM) Are waveforms at YES (SECAM<RF/Composite Video>)
  • Page 28 PDM-4220 Trouble of Sub picture Are waveforms at TP68(Y), TP69(Cb) and TP6A(Cr) ? Check Formatter PWB Are waveforms at Are waveforms at 42pin(Y), 44pin(Cb) 21pin(Y), 22pin(Cb) and 46pin(Cr) of I601? and 23pin(Cr) of I502? Check Q508, Q509 and Q510 Check Q607, Q608 and Q609...
  • Page 29 PDM-4220 Synchronization [Video PWB Circuit] No Sync or Invalid Sync YES (HDMI) HDMI Input ? YES (Sub picture) Sub picture ? (RF/Composite Video/S-Video) Is waveform at Trouble of Sub picture 25pin(Y) of I601? (Single picture or Main picture) Check I601...
  • Page 30 PDM-4220 Trouble of Sub picture Are waveforms at TP63(H) and TP64(V) ? Check Formatter PWB Are waveforms at 45pin(H) and 48pin(V) of I601? Check I602 YES (Component Video) Component Input ? Check I601 and Input terminals (RF/Composite Video/ S-Video/RGB-Video/HDMI) YES (RGB-Video)
  • Page 31 PDM-4220 HDMI [HDMI PWB Circuit] No picture, no color or dark Are waveforms at QH20<E>(Y), QH21<E>(Cb) and QH22<E>(Cr)? Check ETV3 and VIDEO PWB Are waveforms at 12pin(Y), 15pin(Cb) and 7pin(Cr) of IH13? Check QH20, QH21 and QH22 Check IH13 No sound...

  • Page 32: Self Diagnosis Function

    PDM-4220 Self-Diagnosis Function This chassis has 2 modes of self-diagnosis function. (1) PDP panel check mode: It indicates the one latest record of the PDP panel failure with blinking of the power indication light (LED). (2) Signal circuit check mode: It indicates the check result on some points of the signal circuit and the history of them with On-Screen Display (OSD).
  • Page 33 PDM-4220 Signal circuit self-diagnosis function This function is for the failure of the signal circuit, for example the phenomenon as below: "Sometimes power turns off abnormally." "Sometimes picture disappears abnormally." To enter to this Self-Diagnosis mode, follow the next steps: Preparation: 1) The Power Cord should be connected to AC line and the Main Power switch should be turned on.
  • Page 34 PDM-4220 MEMO...

  • Page 35: Block Diagram

    PDM-4220 Block diagram...

  • Page 36: Connection Diagram

    PDM-4220 Connection diagram...

  • Page 37: Wiring Diagram

    PDM-4220 Wiring diagram wiring diagram 1/2 POWER UNIT LEAD No.6 with FERRITE CORE SK Binder side No.6 To joint PWB LEAD No.11 with FERRITE CORE to the next page : Replacement parts are available for the shaded parts.
  • Page 38 PDM-4220 wiring diagram 2/2 Detail (*2) Clamp the wire as wiring diagram. POWER UNIT SK Binder SK Binder side SP TERMINAL R PWB PURSE LOCK FERRITE CORE No.6 FERRITE CORE SP TERMINAL L PWB SK Binder AUDIO PWB (*2) (*2)

  • Page 39: Disassembly Diagram

    PDM-4220 Disassembly diagram #08G #212E #202E U001 STANDBY/ON TV DVD RECALL AV 1 AV 2 AV 3 AV 4 E01 E02 AV 5 AV 6 RGB 1 RGB 2 2-4-12 MENU RETURN A. MODE P. MODE PROG I/II...
  • Page 40 PDM-4220 The figure of FHP Panel Module Rear view The state of a panel simple substance. Attachment for packing Attachment for packing *Apply it before packing *Apply it before packing this panel module. this panel module. X-SUS PWB ASS'Y Y-SUS PWB ASS'Y...

  • Page 41: Replacement Parts List

    AAX71910 PSA PW2 VIDEO EUROPE JP08092 AAX71890 PSA PW2 JOINT/SWIVEL JP08063 AAX71900 PSA PW2 TUNER EUROPE JP08112 AAX71850 PSA PW2 HDMI VESTEL JP08122 AAX71920 PSA PW2 FILTER (YAMAHA) JP08075 AAX71840 HCP227 VESTEL ASS'Y CS00877 AAX72070 POWER UNIT MPF7415 HA01481 AAX53960 CONNECTOR 50P FFC EK01433...

  • Page 42: Diagnosis Of The Panel Module

    PDM-4220 Diagnosis of the Panel module NAME and FUNCTION CONFIGURATION FPF42C128128UD-55 (LOGIC set out right side) SDM-U XBB-U X-SUS Y-SUS XBB-D LOGIC SDM-D ABUSR ABUSL ADM1 ADM8...
  • Page 43 PDM-4220 BLOCK DIAGRAMS Signal Diagrams X-SUS B. Y-SUS B. X-SUS Y-SUS EVEN SW EVEN SW X-SCAN Y-SCAN EVEN SW EVEN SW X-SUS Y-SUS ODD SW ODD SW X-SCAN Y-SCAN ODD SW ODD SW ADM1 ADM2 ADM3 ADM4 ADM5 ADM6 ADM7 ADM8 ABUSL B ABUSR B.
  • Page 44 PDM-4220 Power Diagrams X-SUS B. Y-SUS B. X-SUS Y-SUS EVEN SW EVEN SW X-SCAN Y-SCAN EVEN SW EVEN SW X-SUS Y-SUS ODD SW ODD SW X-SCAN Y-SCAN ODD SW ODD SW ADM1 ADM2 ADM3 ADM4 ADM5 ADM6 ADM7 ADM8 POS/NEG POS/NEG ABUSL B.
  • Page 45 PDM-4220 FAULT SYMPTOM Fault Fault status Suspected Analysis procedure contents fault location and measure Entire screen After momentarily going on, the X-SUS Refer to Chapter does not screen becomes black Y-SUS 4.6.1 light. immediately or after a few seconds. (Main power is turned Panel chassis off.)
  • Page 46 PDM-4220 Fault contents Fault status Suspected Analysis procedure fault and measure location Horizontal bar Bar width of 1/8 or multiples of Panel chassis Replace panel 1/8 of the screen height, is chassis displayed. Abnormal (Screen does not light) Bar width of 1/2 of the screen...
  • Page 47 PDM-4220 Analysis procedure Fault contents Fault status Suspected and measure fault location Cont r ol on Contrast, color temperature LOGIC Replace LOGIC adjustment and ϒ cannot be external board communicat i on changed. is abnormal...
  • Page 48 PDM-4220 DISASSEMBLING AND REASSEMBLING Unless otherwise specified, use the torque screwdriver for screw tightening, following the tightening torques below. Screw size Tightening torque 69±0.049Nm (7±0.5kg·cm) 1.18±0.098Nm (12±1.0kg·cm) EXPLODED VIEW (10)
  • Page 49 PDM-4220 X-SUS CIRCUIT BOARD REMOVAL/INSTALLATION PROCEDURE When removing the circuit board after the main power is turned on/off, wait for at Note least one minute before starting to remove the circuit board. If the circuit board removal is started immediately after turning off the main power, it can result in electric shock or damage to the circuit due to residual electric charge.
  • Page 50 PDM-4220...
  • Page 51 PDM-4220 Y-SUS CIRCUIT BOARD REMOVAL/INSTALLATION PROCEDURE When removing the circuit board after the main power is turned on/off, wait for at Note least one minute before starting to remove the circuit board. If the circuit board removal is started immediately after turning off the main power, it can result in electric shock or damage to the circuit due to residual electric charge.
  • Page 52 PDM-4220...
  • Page 53 PDM-4220 ABUS-L CIRCUIT BOARD REMOVAL/INSTALLATION PROCEDURE When removing the circuit board after the main power is turned on/off, wait for at Note least one minute before starting to remove the circuit board. If the circuit board removal is started immediately after turning off the main power, it can result in electric shock or damage of the circuit due to residual electric charge.
  • Page 54 PDM-4220...
  • Page 55 PDM-4220 ABUS-R CIRCUIT BOARD REMOVAL/INSTALLATION PROCEDURE When removing the circuit board after the main power is turned on/off, wait for at Note least one minute before starting to remove the circuit board. If the circuit board removal is started immediately after turning off the main power, it can result in electric shock or damage of the circuit due to residual electric charge.
  • Page 56 PDM-4220...
  • Page 57 PDM-4220 LOGIC BOARD REMOVAL/INSTALLATION PROCEDURE Remove the circuit board by following the steps below. To install the circuit board, reverse the removal procedure. (1) Disconnect the EH connector CN6. (2) Release the lock of the FPC connectors CN2, CN3 and disconnect the signal cable (FPC).
  • Page 58 PDM-4220...

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