Akai PDP4206EM - 42" Plasma EDTV Service Manual
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Akai PDP4206EM - 42" Plasma EDTV Service Manual

Service manual
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SERVICE MANUAL

Customer Model:

Safety Precaution
Technical Specifications
Block Diagram
Circuit Diagram
Basic Operations & Circuit Description
Main IC Specifications
Product Specification of PDP Module
Trouble Shooting Manual of PDP Module
Spare Part List
Exploded View
If you forget your V-Chip Password
Software Upgrade
This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing,
by the constant improvement of product.
PDP4206EM

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Summary of Contents for Akai PDP4206EM - 42" Plasma EDTV

  • Page 1: Customer Model

    SERVICE MANUAL Customer Model: PDP4206EM Safety Precaution Technical Specifications Block Diagram Circuit Diagram Basic Operations & Circuit Description Main IC Specifications Product Specification of PDP Module Trouble Shooting Manual of PDP Module Spare Part List Exploded View If you forget your V-Chip Password Software Upgrade This manual is the latest at the time of printing, and does not include the modification which may be made after the printing,...

  • Page 2: Safety Precaution

    Safety Precaution The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to CAUTION alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclo sure that may be of sufficient magnitude to RISK OF ELECTRIC SHOCK constitute a risk of electric shock to persons.

  • Page 3: Product Safety Notice

    5. When replacing a MAIN PCB in the cabinet, PRODUCT SAFETY NOTICE always be certain that all protective are installed properly such as control knobs, Many electrical and mechanical parts in this adjustment covers or shields, barriers, isolation apparatus have special safety-related resistor networks etc.

  • Page 4: Technical Specifications

    PDP4206EM MODEL : Technical Specifications 42” Plasma Monitor DATE FIRST ISSUED ISSUE RAISED BY CHECKED BY NUMBER OF PAGES REVISIONS ISSUED DATE DESCRIPTION RAISED BY : SPECIFICATION AGREED : SIGNATURE DATE R & D DEPARTMENT ........................COMMERCIAL DEPARTMENT ..................

  • Page 5: Viewing Distance

    CONTINUATION PAGE Technical Specifications PDP420 NUMBER PAGES Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light 150ux (When measuring I , the ambient luminance ≦0.1Cd/m Viewing distance 50cm in front of PDP Warm up time 30 minutes PDP Panel facing...

  • Page 6: Electrical Characteristics

    CONTINUATION PAGE Technical Specifications PDP4206EM NUMBER PAGES ELECTRICAL CHARACTERISTICS Power Input Voltage 110 ~120VAC Input Current 3.5 / 1.5A Maximum Inrush Current <30 A (FOR AC110V ONLY) Test condition Measured when switched off for at least 20 mins Frequency 50Hz to 60Hz(±3Hz) Power Consumption ≤...
  • Page 7 CONTINUATION PAGE Technical Specifications PDP4206EM NUMBER PAGES Audio input Audio I/P(L/Rx5) 1 for DVI / D-Sub 1 for Y/ Pb/Pr 1 for Y/ Cb/Cr 1 for Video 1 for S-Video Audio output 1 for Line out Audio O/P(L/Rx1) Other function PIP, 16:9, 4:3, Zoom Environment Operating environment...

  • Page 8: Color Temperature

    CONTINUATION PAGE Technical Specifications PDP4206EM NUMBER PAGES 6.11 Color temperature Contrast at center (50); Brightness center (50); Color temperature set at Natural x=0.285±0.02 y=0.293±0.02 6.12 Cell Defect Specifications Subject to Panel supplier specification as appends. Front Panel Control Button SEL. UP/Down Button Push the key to selecting the item on OSD menu Volume Up/ Down Button Push the key to increase the volume up or down.
  • Page 9 CONTINUATION PAGE Technical Specifications PDP4294LV1 NUMBER PAGES Agency Approvals Safety UL60950 Emissions FCC class B 10. Reliability 11.1 MTBF 20,000 hours(Use moving picture signal at 25°C ambient) User manual x1, Remote control x1, Stand x1, Power cord x1, 11. Accessories Battery x 2, Accessories box x 1.
  • Page 10 CONTINUATION PAGE Technical Specifications PDP4206EM NUMBER PAGES 12. Supportthe Signal Mode The PDP can support the different from DVI or VGA Signal Mode in 24 kinds Resolution Horizontal Vertical Dot Clock Frequency Frequency Frequency (KHz) (Hz) (MHz) 640 x400 31.47 70.08 25.17 640 x400...

  • Page 11: Remote Function

    CONTINUATION PAGE Technical Specifications PDP4206EM NUMBER PAGES Remote Function+ Mute Standby on/off YPbPr Video Number Buttons/ Channel up/ Channel down/ Return V-CHIP VOL +/- I. P. C I. S. C Menu Left/Right Up/Down Left/Right Button EXIT Button Input ZOOM plus/minus Wide Freeze Display...

  • Page 12: Physical Characteristics

    CONTINUATION PAGE Technical Specifications PDP4206EM NUMBER PAGES PHYSICAL CHARACTERISTICS 14. Power Cord Length 1.8m nominal Type optional 15. Cabinet 15.1 Color “Black” colour as defined by colour plaque reference number 15.2 Weight (with stand) 84.5lbs (38.3kg) Net weight 15.3 Dimensions(with stand) 40-7/8 inches (1040mm) Width 27-1/4 inches (692mm)

  • Page 13: Block Diagram

    Block Diagram Product Specification of PDP Module Vs(180V~190V) Memory LVDS Input Controller Input Va(55V~65V) Interface Vcc(+5V) Controller Control Signal (Serial Interface) Driver Timing Controller APL Data Display data, Driver timing Color Plasma Display Panel 852 X 480 pixels Address Driver Applied Voltage level is specified at the time when Full-White pattern is displayed on the panel.
  • Page 14 Block Diagram...

  • Page 15: Circuit Diagram

    Circuit Diagram - Power supply board of PDP Module, DGP-420WXGA - Power supply board of PDP Module, USP490M-42LP - Main (Video) board - Audio/Tuner board - Keypad board - Remote control receiver board - External L/R Speakers board - Remote control board...
  • Page 16 CN01 F101 250VAC 8A 3-176976-2 T204,205 D600 VS EER4042 FSF10A60 L101 L103 L104 R108 R103 PFC + 190VS 23mH CH108200S CH108200S 5W 15 5W 20 T208 D102 PFC+ PFC COIL 200uH FEP30JP CN02 CN03 R609 3-176976-1 3-176976-1 R226 300KF R221 2W 240K R600 C600...
  • Page 17 USP490M-42LP...
  • Page 18 INPUT PW171 GBAIN HDCBIN GBE[7:0] GGAIN RXCm GRE[7:0] HDYIN GRE[7:0] D[15:0] DGE[7:0] RXCm RX0m GPEN GAFEOE DBE[7:0] RX0m RX1p GBE[7:0] VGASEL GCLK A[19:0] DRO[7:0] GHSYNC RX1m GVSYNC GFBK GFBK DGO[7:0] RX1m RX0p GBO[7:0] GCOAST GGE[7:0] CS1n DRE[7:0] RXCp GDFEOE GFBK HDCRIN VPPEN DBO[7:0]...
  • Page 19 AVDD AVDD AVDD AVDD AVDD AVDD AVDD AVDD AVDD AVDD PVDD AVDD LM2937_SOT223 LM2937_SOT223 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 47uF 0.1uF 0.1uF 47uF PVDD PVDD 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 47uF PVDD AVDD...
  • Page 20 OVCC CVCC PVCC AVCC V33T LM2937_SOT223 SISCDT 0.1uF 0.1uF 47uF SCDT GBE[7:0] AVCC SIBE0 GBE0 SIBE1 GBE1 SIBE2 GBE2 SIBE3 GBE3 SIBE4 GBE4 SIBE5 GBE5 V33T OVCC SIBE6 GBE6 FB_420_OHM_200MA OVCC OVCC OVCC OVCC OVCC SIBE7 GBE7 GGE[7:0] SIGE0 GGE0 SIRES SIGE1 GGE1...
  • Page 21 D[15:0] 3906 ROMOEn ROMWEn C167 FWPn BYTE 22uF VPPEN HDR_2X2 C168 3904 0.1uF 24C16 GND1 GND2 Flash_8M VPPON FCEn ICEn HDR_2X2 C169 3.3K 3.3K 3.3K 0.1uF IRPn 3.3K 3.3K IA20 3.3K IA21 3.3K ROMOEn ROMWEn ÉϺ£¼ÒÓ°¶àýÌå¼¼ÊõÓÐÏÞ¹«Ë¾ Shanghai Jiaying Multimedia Technology Co.,Ltd HDR_30X2 Title PW171-LGPDP...
  • Page 22 HDCR FB_40_OHM_500MA HDCRF FB_40_OHM_500MA HDCRIN FB_40_OHM_500MA HDYF FB_40_OHM_500MA HDYIN HDCB FB_40_OHM_500MA HDCBF FB_40_OHM_500MA HDCBIN AVDD AVDD AVDD 12pF 12pF 12pF GVCC1 GVCC1 GVCC1 GVCC1 GVCC1 GVCC GVCC GVCC GVCC GVCC GVCC1 3.3K 3.3K 3.3K 3.3K 3.3K 3.3K CVCK VCLK GVCC CSCL CSDA GVCK...
  • Page 23 DRE[7:0] DRE0 RP60 ARE0 C273 C274 C275 C276 C277 ARE1 DRE1 R139 ARE2 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF DRE2 ARE3 DRE3 R140 ARE4 DRE4 RP61 DRE5 ARE5 3WSDA DRE6 ARE6 DCLK CLKIN 3WSCL ARE7 DRE7 DGE[7:0] 3WSLE AGE0 ARE0 DGE0 RP62 PDWN TXIN0...
  • Page 24 MCKEXT1 CLOCK GENERATOR RMCK ICSCLK MCKEXT SCLK CLK1 C232 +5VIN ICSDAT DATA ICSSTM STROBE 0.1uF CLK2 LED RED C230 C231 ICS307 ICSREF 0.1uF 0.1uF +5VIN CON5 DCKEXT1 FROM PDP RDCK R102 NMI1 R106 SCLK CLK1 DCKEXT C241 DATA 4.7uF ICSSTD R107 STROBE C240...
  • Page 25 MD16 V33N MD17 MD18 MD19 MD20 C112 MD21 C113 C114 C115 C116 C117 C118 C119 MD22 0.1uF 0.1uF 0.1uF 0.1uF C120 C121 C122 0.1uF 0.1uF 0.1uF 0.1uF MD23 0.1uF 0.1uF 0.1uF MD24 0603 0603 0603 0603 0603 0603 0603 V33N MD25 0603 0603...
  • Page 26 LM317S R126 C252 C251 C253 C250 22uF 0.1uF 22uF 0.1uF C254 1000uF-16V V25ADJ R129 +5VIN C259 C261 0.1uF C262 220uF-16V 1000pF U29 LM3940IS-3.3 C269 0.1uF C267 C268 22uF 0.1uF ÉϺ£¼ÒÓ°¶àýÌå¼¼ÊõÓÐÏÞ¹«Ë¾ Shanghai Jiaying Multimedia Technology Co.,Ltd Title PW171-LGPDP Size File POWER Main (Video) Date: Thursday, December 09, 2004...
  • Page 27 GFBK V3P V3P AD13 DCLK DCLK AD15 AC15 GCLK GCLK GCLKOUT 4.7K CPUEN AF17 GPEN DENR GPEN GFBK CPUEN DENR A[19:0] AC16 GREF RESET RESET DENG DENG CLKIN AD16 GBLKSPL CLKIN DENB GBLKSPL DENB CLKIN1 AE15 GCOAST MCKEXT GSOG GCOAST MCKEXT RRE0 RP34...
  • Page 28 V33L C206 200+ Ohm C207 C208 C209 C210 C211 C212 C213 C214 C205 10uF C215 330pF 330pF 330pF 330pF 330pF 330pF 330pF 330pF 0.1uF U19 Sil150 DRE0 V33L DIE16 DRE[7:0] DRE1 DIE17 DRE2 DIE18 DRE3 C219 C220 DIE19 DRE4 C216 C217 C218 200+ Ohm...
  • Page 29 3.3K VVINT VCCV VCCV C280 220nF VBOX SCL5V SDA5V VCCR 8.2K VVVS VIN INTRO VVHS VCCG SDA5V GREEN BLUE CCV2 VIDED VCCB CSYNC 0.1uF SN7002 C286 560pF C285 C287 33pF C284 ASEL VSSA 6.8K 33pF +5VT VCCV 33pF 33pF 1N1183A Z86229 FB_420_OHM_200MA 6.8nF...
  • Page 30 02_INPUT 03_AUDIO OUTA OUTB MUTE AUDIO OUTL MUTE1 SCL5V AUDIO OUTB POWER_ON SDA5V AUDIO OUTL AUDIO OUTR SDA5V SCL5V 02_INPUT 03_AUDIO 04_MCU+AMP POWER_ON RELAY MUTE OUTA OUTB MUTE1 04_MCU+AMP...
  • Page 31 "U3(UVS7305M.FH) only for the Model with Turner" Audio/Tuner...
  • Page 32 Audio/Tuner...
  • Page 33 "U8(TDA9850) only for the Model with Turner" Audio/Tuner...
  • Page 34 Keypad Remote control receiver External L/R Speakers...

  • Page 35: Remote Control

    Remote control...

  • Page 36: Basic Operations & Circuit Description

    Basic Operations & Circuit Description MODULE There are 1 pc. panel and 8 pc.s PCB including 2 pc.s Y/Z Sustainer board, 2 pc.s Y Drive board, 2 pc.s X (left and right) Extension PCB, 1 pc. Control (Signal Input) and 1 pc. Power board in the Module.

  • Page 37: Parts Position

    Parts position Internal Speaker (Right) Power Supply Internal Speaker (Left) Y-Drive Top Z-Sustainer Y-Sustainer External Speaker Terminals Y-Drive Bottom Power SW X left Extension EMI filter + AC Inlet X right Extension only for the Model with Turner Remote control Receiver Local key Main (Video) Tuner/Audio...

  • Page 38: Pcb Function

    PCB function 1. Power: (1). Input voltage: AC 110V~240V, 47Hz~63Hz. Input range: AC 90V(Min)~265V(Max) auto regulation. (2). To provide power for PCBs. 2. Main (Video InterFace) board: To converter TV signals, S signals, AV signals, Y Pb/ Cb Pr/Cr signals, DVI signals and D-SUB signals to digital ones and to transmit to Control board.
  • Page 39 PCB failure analysis 1. CONTROL: a. Abnormal noise on screen. b. No picture. 2. MAIN (VIDEO): a. Lacking color, Bad color scale. b. No voice. c. No picture but with signals output, OSD and back light. d. Abnormal noise on screen. 3.
  • Page 40 Basic operation of Plasma Display 1. After turning on power switch, power board sends 5Vst-by Volt to Micro Processor IC waiting for ON signals from Key Switch or Remote Receiver. 2. When the ON signal from Key Switch or Remote Receiver is detected, Micro Processor will send ON Control signals to Power.
  • Page 41 Main IC Specifications - PW171 Image Processor - AD9883A 110MSPS/140MSPS Analog Interface for Flat Panel Displays - NV320 Video Enhancement Processor - VCP 323XD comb Filter Video Processor - SiI161B Panel Link Receiver - Z86229 NTSC Line 21 CCD Decoder - TDA9850 BTSC stereo/SAP decoder(only for the Model with Turner) - NJW1144 Audio Processor...

  • Page 42: General Description

    Product Specification: PW171 ImageProcessor XGA/SXGA/UXGA Flat Panel Display Controller IC P r e li m i n a r y d to result in a personal injury or loss of life. Customers using or selling Pixelworks devices for use in such applications do so at their ris General Description PW171 is a highly integrated “system-on-a-chip”...

  • Page 43: Functional Block Diagram

    110 MSPS/140 MSPS Analog Interface for Flat Panel Displays AD9883A FUNCTIONAL BLOCK DIAGRAM CLAMP OUTA CLAMP OUTA “ ” CLAMP OUTA MIDSCV HSYNC DTACK SYNC COAST PROCESSING HSOUT AND CLOCK CLAMP VSOUT GENERATION FILT SOGOUT BYPASS SERIAL REGISTER AD9883A POWER MANAGEMENT 140 MHz.
  • Page 44 nD S P C o r po r a t io n NV 3 2 0 D a ta S he et NV320 Video Enhancement Processor 1.0 Introduction Anti-flickering circuitry • NTSC/PAL to SDTV 480p format conver- • The NV320 is a single-chip, programmable sion video display processor providing advanced Frame rate up-conversion (50Hz up to...

  • Page 45: Ordering Information

    nD S P C o r po r a t io n NV 3 2 0 D a ta S he et 2.0 Ordering Information Internet televisions • Home theater and multimedia televisions • NV320 Part Video conferencing • Number PQFP 208 Package Plastic quad flat pack-...
  • Page 46 VPC 323xD Comb Filter Video Processor 1. Introduction The VPC 323xD is a high-quality, single-chip video front-end, which is targeted for 4:3 and 16:9. 50/60 Hz and 100/120 Hz TV sets. It can be combined with other members of the DIGIT3000 IC family (such as DDP 331x) and/or it can be used with 3rd-party products.
  • Page 47 ® SiI 161B PanelLink Receiver August 2002 Data Sheet General Description Features The SiI 161B receiver uses PanelLink Digital • Low Power Operation: 280mA max. current technology to support high-resolution displays up to consumption at 3.3V core operation UXGA (25-165MHz). This receiver supports up to true •...
  • Page 48 4 ' . + / + 0 # 4 ; 4 1 & 7 % 6 2 ' % + ( + % # 6 + 1 0 < 0 6 5 % .   % % & & + 0 ' ' % 1 &...

  • Page 49: Audio Processor

    C-bus controlled BTSC stereo/SAP decoder TDA9850 FEATURES - Quasi alignment-free application due to automatic adjustment of channel separation via C-bus - Dbx noise reduction circuit - Dbx decoded stereo, Second Audio Program (SAP) or mono selectable at the AF outputs - Additional SAP output without dbx, including de-emphasis - High integration level with automatically tuned integrated filters - Input level adjustment I...

  • Page 50: Warnings And Cautions

    Product Specification of PDP Module 0. Warnings and Cautions WARNING indicates hazards that may lead to death or injury if ignored. CAUTION indicates hazards that may lead to injury or damage to property if ignored. WARNING This product uses a high voltage (450 V max.). Do not touch the circuitry of this product with your hands when power is supplied to the product or immediately after turning off the power.
  • Page 51 Product Specification of PDP Module CAUTION General Do not place this product in a location that is subject to heavy vibration, or on an unstable surface such as an inclined surface. The product may fall off or fall over, causing injuries. When moving the product, be sure to turn off the power and disconnect all the cables.
  • Page 52 Product Specification of PDP Module Because this product uses a high voltage, connecting or disconnecting the connectors while power is supplied to the product may cause malfunctioning. Never connect or disconnect the connectors while the power is on. Immediately after power has been turned off, a residual voltage remains in the product. Be sure to confirm that the voltage has dropped to a sufficiently low level.
  • Page 53 Product Specification of PDP Module 1. GENERAL DESCRIPTION DESCRIPTION The PDP42V6#### is a 42-inch 16:9 color plasma display module with resolution of 852(H) 480(V) pixels. This is the display device which offers vivid colors with adopting AC plasma technology by LG Electronics Inc. FEARURES High peak brightness (1000cd/m Typical) and high contrast ratio (3000:1 Typical) enables user to create...

  • Page 54: General Specfications

    Product Specification of PDP Module ELECTRICAL INTERFACE OF PLASMA DISPLAY The PDP42V6#### requires only 8bits of digital video signals for each RGB color. In addition to the video signals, six different DC voltages are required to operate the display. The PDP42V6#### is equipped with P-CUBE function which analyzes display signals to optimize system control factor for showing the best display performance.

  • Page 55: Connectors And Connections

    Product Specification of PDP Module 7. CONNECTORS and CONNECTIONS Power Input Connector Connector P3001 Pin Assignment Pin No. Symbol Pin No. Symbol 1-1123723-8 Pin numbers (Top View, viewed from the pin connection side) Module side connector : 1-1123723-8 (Header) Mating Connector : 1-1123722-8 (Housing) Connector Supplier : AMP...
  • Page 56 Product Specification of Power Supply Unit Pin Assignment 8. Input/Output pin assignment & specification 10 9 8 7 6 5 4 3 2 1 CN808 CN805 CN807 CN806 4 3 2 1 #1 ~ #4 8 7 6 5 4 3 2 1 : +5Vctrl #1 : Va #1 : Vs...
  • Page 57 Adjustment detail Product Specification of Power Supply Unit 9. Adjustment detail 10 9 8 7 6 5 4 3 2 1 CN808 CN805 CN807 CN806 4 3 2 1 8 7 6 5 4 3 2 1 CN804 Selection S/W 24V 30V CN803 CN809...
  • Page 58 Product Specification of PDP Module 8. LABEL LABEL Sticking Position Coner Plate E/X Tube 3211QKE008A (carved) Z - SUS Y-SUS CONTROLLER Signal Input (R,G,B,H/Vsync.) X left X right Identification Label : LABEL Model Name Bar Code (Code 128, Contains the manufacture No.) Manufacture No.
  • Page 59 Trouble Shooting Manual of PDP Module - Introduction - Precautions - Basic - Trouble shooting...
  • Page 60 1. Introduction COMPOSITION OF PDP BOARDS 42” V6 MODEL. Y-DRIVE Z-SUS B/D Y-SUS Y-DRIVE BOTTOM X-RIGHT B/D CONTROL B/D X-LEFT B/D...
  • Page 61 1. Introduction Definitions Definition of MODULE position long 1 * Back side of module Exhaust hole short 1 long 2 short 2 • • • • • • • • COF long2-1 COF long 2-7 Identification label Model Name 6#### Bar Code (Code 128, Contains the manufacture No.) Manufacture No.

  • Page 62: Board Ass`y

    1. Introduction Voltage label (Attached on back side of module) Vsetup BOARD ASS`Y Part No. label (Attached on board) PART NO. BOARD NAME BOARD SERIAL NO. PCB PART NO. COF serial No. label (attached on COF) COF SERIAL NO.
  • Page 63 1. Introduction Terms of defect...
  • Page 64 2. Precaution Safety precautions Be sure to read this before service. When using/ handling this PDP module, Please pay attention to the below warning and cautions. 1. Before repairing there must be a preparation for 10 min. 2. Do not impress a voltage that higher than represented on the product. 3.
  • Page 65 2. Precaution Handle with care (COF) COF is the most important component in the PDP module. Even a little imperfection of COF can make a serious screen problem. SCRATCHING TEARING BEING PUSHED BENDING CHOPING...
  • Page 66 3. Basic 1. X B/D : receiving LOGIC signal from CONTROL B/D and make ADDRESS PULSE(generates Address discharge)by ON/OFF operation, Signal part Power part and supplies this waveform to COF(data) X RIGHT B/D X RIGHT B/D X LEFT B/D X LEFT B/D <COF Separating>...
  • Page 67 3. Basic 2. Z sustain B/D : make SUSTAIN PULSE and ERASE PULSE that generates SUSTAIN discharge in panel by receiving LOGIC signal from CONTROL B/D. this waveform is supplied to panel through FPC(Z). *composed with IPM,FET,DIODE, electrolytic capacitor ,E/R coil. * IPM (Intelligent Power Module) E/R(Energy recovery) <FPC Separating>...
  • Page 68 3. Basic 3. Y drive B/D 1) This is a path to supply SUSTAIN ,RESET waveform which made from Y SUSTAIN B/D to panel through SCAN DRIVER IC. 2) Supply a wave form that select Horizontal electrode (Y SUSTAIN electrode) sequentially.
  • Page 69 3. Basic 4. Y sustain B/D : generates SUSTAIN,RESET waveform, Vsc(SCAN)voltage. and supplies it Y DRIVER B/D. * Composed with IPM,DIODE, electrolytic capacitor ,FET. 5. Control Board : creates signal processing (Contour noise,reduction ISM,..) and an order of many FET on/off of each DRIVER B/D with R,G,B each 8bit input.
  • Page 70 3. Basic DC/DC con. 6. DC/DC Converter part part : Being impressed 5V, Va ,Vs, DC/DC converter makes 5V,Va,Vs,Vset_up,Vsc which is essential for each B/D. There is no DC/DC B/D in model 40 ¨• /42 ¨• (1 POWER B/D). * 50 ¨• 60 ¨• embedded DC/DC B/D separately because of high power consumption.
  • Page 71 3. Basic 7. FPC (Flexible Printed Circuit) : supply a driving waveform to PANEL by connecting a PAD electrode of PANEL with PCB(Y and Z). * there is two type of this for Y B/D. One is single-sided, another is double-side. These are having pattern on it * for Z B/D, there is no pattern , single-sided, and Beta type(all of copper surface).
  • Page 72 3. Basic 9. COF (Chip On Film) : supply a waveform which made from X B/D to panel and select a output pin that is controlled by COF when be on or off. 96 output pin per IC. the more the resolution higher, the less spare space where can set IC on it in B/D.
  • Page 73 3. Basic 10. IPM(Intelligent Power Module) : composition HEATSINK,CAPACITOR DIODE IC LINEAR RESISTORTANSISTOR,FETS. : description Attached at Z B/D and Y B/D, make Sustain waveform. Sustainer : supply a square wave to panel to make a video.

  • Page 74: Troubleshooting

    4. Trouble shooting. Fast check up what kind of defect? defect Check model No. of module ,all connectors and cables. Check panel appearance Check PSU output (Va,Vs,5v) Check Y, Z b/dinput voltage No display? Replace Y, Z b/d Replace ctrl b/d Check panel appearance Check COF Replace X b/d...
  • Page 75 4. Trouble shooting. Logical judgment what kind of defect? What kind of defect ? No display? Please follow the no display trouble shooting. Bar defect appeared? vertical defect? Please follow bar defect trouble shooting. Line defect Horizontal defect? Please follow the line defect trouble shooting. Mis –discharge Please follow the mis discharge trouble shooting.
  • Page 76 4. Trouble shooting. No display 1. Connector Confirm every Connector (PSU, Y-SUS, CTRL, Z-SUS) module may not be normal by mis-connection which can not send signal and power. Also Mis connection for a long time has a specific b/d failed.
  • Page 77 4. Trouble shooting. 2. Exhaust tip Crack Confirm exhausting Tip and find Crack with naked eyes to check vacuum state. If there is problem replace the module . in case of vacuum breakdown, module makes a shaking noise because of inside gas ventilation. (there may be a small crack which could not see with naked eyes.
  • Page 78 4. Trouble shooting. 3. PSU(Power Supply Unit) 1. Check each unit part of PSU inside with naked eyes. (capacitor, FET, a kind of IC, resistor) 2. Check FUSE and SW1 (on Normal). 3. Check Output voltage which is converted from AC V SW1 Normal to DC V.
  • Page 79 4. Trouble shooting. Diode 4. Ctrl B/D 1. Confirm LED D17(flashing) ,13 lighting 2. If not CHECK OSC X1 output. Input voltage 3. Check CTRL input voltage (CONNECTOR P300) 4. CHECK 3.3V, 5V,15V. 5. Check IC 11 3.3V IC 3 2.5V OSC(X1) Probe Touching...
  • Page 80 4. Trouble shooting. 5. Y-sus B/D Vscw 1. Check FUSE [FS1(5v) ,FS2(Vs)]. 2. Check voltages(Vsetup,-Vy, Vscw) Vsetup 3. Check DIODE between GND and Y SUS output. setdn [SUSUP(OC2) SUSDN(OC1)]. forward=0.4 ,reverse=OVERLOAD. 4. Check whether output voltages agrees setup with voltage that represented in label.
  • Page 81 4. Trouble shooting. Check whether output voltages agrees with voltage that represented in label. Check diode value GND between Y-SUS output. Normal diode value= 0.4 (forward) Normal diode value = OL (reverse)
  • Page 82 4. Trouble shooting. 6. Z-sus B/D 1. Check the FUSE. 2. Check input voltages.(Va, 5V,15V) 3. Check FPC out put diode value. 4. Check ramp waveform. Check input voltages Check the FUSE 5V FUSE Va FUSE 6.3A Vs FUSE 2A or 4A...
  • Page 83 4. Trouble shooting. Variable resistance of Z RAMP waveform slope. Check FPC output diode value. caution: check certainly after removing FPC. Normal diode value=0.375(forward) Normal diode value=OVER LOAD(reverse)

  • Page 84: Power Protection

    4. Trouble shooting. Power protection It is power protection when power is off automatically within 2~3 min. from power on. Power protection function protect the boards when occurred short on circuits of PDP module or power problem. If can not impress power even after replacing PSU, find out where the short occurred. * PSU makers.
  • Page 85 4. Trouble shooting. Vertical defect (bar) 1. Connector Check here Check COF connector. If not connected well,it will Make a bar defect . Check here 2. Checking COF Confirm whether COF was torn. And then check input of COF resistor and IC. COF 6 is torn partly Tearing...
  • Page 86 4. Trouble shooting. Checking address COF input of resistor and IC COF resistor checking Check the both side of resistor With Digital multi meter(DMM) . If the resistor is normal, the resistor value will be 10.2 ~ 10.8...
  • Page 87 4. Trouble shooting. Checking address COF input of resistor and IC IC input checking Inside of IC , there is 4 ea diodes which separated in 2 series . (input 2, output 2) *how to check 1.contact DMM - terminal to a right terminal of condenser(GND) and DMM + terminal to a right terminal of IC, normal value 0.66 (fig.1) 2.contact DMM - terminal to Output terminal of resistor, and DMM + terminal to a right terminal of IC , normal value 0.73 (fig.2)
  • Page 88 4. Trouble shooting. 3. Ctrl B/D CTRL B/D supplies video signal to COF. So if there is a bar defect on screen, It may be the ctrl b/d problem. <Diagram of ctrl b/d> A flow of address signal In this figure, we can easily suppose what will be appeared on screen when a specific part failed.
  • Page 89 4. Trouble shooting. Vertical defect (line) 1 line open or short This phenomenon is due to COF IC inside short or adherence part of the Film and rear panel electrode problem. In this case, replace the panel. 1 line open 1 electrode open Line open or short with same distance.
  • Page 90 4. Trouble shooting. line defect from each parts • Case 1: Buffer IC fail 16 line open COF IC 1,2 192 line(96+96) open. COF IC 3,4 64 line open (with fixed interval there is on,off ……. Repetition) • case 2 : Array resistor fail COF IC1 16 line , COF IC2 16 line open...
  • Page 91 4. Trouble shooting. Horizontal (bar) Most horizontal defects can be repaired. In case of adherence part of the Film and rear panel electrode defect or panel electrode open,short , replace the panel. 1. Connector It can make a horizontal bar that connector on Y b/d and Z b/d did not plugged well. Because sustain voltage can not be supplied to panel.
  • Page 92 4. Trouble shooting. 2. Scan IC check Check diode value of the right side part of output pin. Check here with DMM(either forward or reverse is ok) DMM + DMM -...
  • Page 93 4. Trouble shooting. Horizontal (line) 1. Check FPC In case of horizontal 1 or more line, it is due to FPC or panel inside . ctrl b/d, Y b/d is just normal. FPC electrode open Panel electrode Insulation break down Horizontal 1 line.
  • Page 94 4. Trouble shooting. How to check IPM Forward : test 1 GND( ) , Sus-out( ) 2 Sus-out( ),Vs( ) 3 ER-DN( ),ER-COM( ) 4 ER-COM( ),ER-UP( ) when each 4 TEST Diode value is over 0.4V => OK Reverse : test 1 GND( ) , Sus-out( ) 2 Sus-out( ),Vs( ) 3 ER-DN( ),ER-COM( ) 4 ER-COM( ),ER-UP( )
  • Page 95 42D1 11 384-42D101-03 TUNER BOARD PLATE ENG 42TD1 W/O RF 12 384-42D102-01 PVC SHEET FOR MAIN BOARD 42D1 13 387-42D101-06H MODEL PLATE AKAI ENG 42TD1(JIAYING) 14 388-42D102-01 PC SHEET FOR REMOTE PCB42D1 94V0 0.3 15 388-42D103-01H CAUTION PLATE ENG 42D1 16 388-42SB02-01H SPK PLATE MAIN SANSUI 42"...
  • Page 96 SERIAL NO. LABEL 49 568-P46T02-02 WARNING LB ENG 42SF NIL 50 579-42D102-09 SERIAL NO/BAR CODE LABEL 42D1 51 579-42D102-14 BAR CODE LABEL AKAI PD4206EM(USA) 52 579-42D103-02 ON/OFF LB ENG 42D1 NIL 53 579-42D105-01 PROTECTIVE EARTH LABEL FOR ESA 42TD1 54 590-42D101-06...

  • Page 97: Accessory Box

    42D1 四. ACCESSORY 1 511-42D102-01A ACCESSORY BOX 2 790-003603-A9 AKAI Remote 0036 for PDP4206EM 3 580-42D101-11 INSTRUCTION BOOKLET E FOR AKAI PDP42 4 310-111404-07V POLYBAG 11"X14"X0.04 5 E3404-157001 AC CORD UL 1.88M MET-4D7+SJT 16AWG/ 6 E7301-010002 BATTERY AAA R03P1.5V <2>...

  • Page 98: Exploded View

    Exploded View...

  • Page 99: Tuner Board

    614-400412-00 SCREW 4x12 615-400412-00 SCREW 4x14 423-42D10C-01 SUPPORT FOR PW BKT 423-42D108-01 PATCH FOR SHIELD BOX 367-42D102-01 EDGE SADDLE 27MM 604-601020-00 MACH.SCREW M6x20 248-P46U02-01 HANDLE 622-302408-10 STP SCREW 3x8 23845857 CLAMP 560-42D101-01 MODEL PLATE 384-42D102-01 PVC SHEET FOR TUNER BOARD 384-42D101-01 PVC SHEET FOR MAIN BOARD 402-42D10X-01...

  • Page 100: If You Forget Your V-Chip Password

    If you forget your V-Chip Password - Omnipotence V-Chip Password: 363200. - Press MENU Right button. - Press CH+, CH- or Up, Down buttons to highlight "CC-VChip" Control. - Press MENU Right and Up, Down buttons to highlight "Change Blocking Password". - Press Right button to pop up "Old Password".

  • Page 101: Software Upgrade Process

    Software upgrade Process - Power Switch OFF. - Connect the RS-232 jack of the computer to the RS-232 jack on the plasma back panel. RS-232C connection cables are not supplied with the Plasma. Computer RS-232 RS-232...
  • Page 102 - Power Switch ON. The power indicator on the front of the panel should now display red, that the Plasma is in standby mode. - Copy the software (Flash Upgrader) to the computer. - Open the software (Flash Upgrader.exe) - Point "Flash" on the interface of the Flash Upgrader.exe. Flash...
  • Page 103 - Press STANDBY button on the front panel or POWER button of Remote control, Power indicator is green, the Plasma is in power ON mode, software start upgrader immediately. - Hard Reset after the upgrader is finished. Method: 1. Power Switch Off 2.

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