Akai PDP4273MN Service Manual
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Akai PDP4273MN Service Manual

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Summary of Contents for Akai PDP4273MN

  • Page 2: Table Of Contents

    SERVICE MANUAL Model: PDP4273M Safety Precaution..................1~2 Technical Specifications................ 3~9 Circuit Diagram..................10~30 Basic Operations & Circuit Description.......... 31~35 Main IC Information.................. 36 Panel Information................37~49 Spare Part List..................50~54 Exploded View..................55 If you forget your V-Chip Password............56 Software Upgrade................57~60 This manual is the latest at the time of printing, and d o e s not include the modification which may be made after the printing, by the constant improvement of product.

  • Page 3: Safety Precaution

    Safety Precaution T he lightning flash w ith arrow head sym bol, w ithin an e qu ila tera l trian gle , is intended to CAUTION alert the user to the presence o f uninsulated “dangerous voltage” w ithin the product’s enclo R IS K OF E L E C T R IC S H O C K sure th a t m ay be o f su ffic ie n t m a g n itu d e to DO N O T O P E N...
  • Page 4 W hen rep la cing a M AIN PC B in th e cabinet, P R O D U C T S A F E T Y N O T I C E a lw ays be certa in th a t all p ro tective are installed properly such as co ntrol knobs, M any e le ctrica l and m ech an ical parts in th is a djustm e nt covers o r shields, barriers, isolation...

  • Page 5: Technical Specifications

    PDP4273M Technical Specifications Standard Test C o n d itio n s All tests shall be performed under the following conditions, unless otherwise specified. Ambient light 150ux (When measuring IB, the ambient luminance ^0 .1 C d /m 2) Viewing distance 50cm in front of PDP Warm up time 30 minutes...

  • Page 6: Technical Specifications

    Technical Specifications PDP4273M ELECTRICAL CHARACTERISTICS Pow er Input Voltage 120VAC Input Current 3.5A Maximum Inrush Current <30 A (FOR AC 120V ONLY) Test condition Measured when switched off for at least 20 mins Frequency 60Hz(±3Hz) Power Consumption 330W Typical Test condition full white display with maximum brightness and contrast Power Factor...
  • Page 7 Technical Specifications PDP4273M Audio input Audio Input(L/Rx5) 1 for DVI / D-Sub 2 for YPbPr 1 for S-Video 1 for AV Audio output Audio Output (L/Rx1) : Monitor out(L/R) Coaxial x 1 (only for HDMI) SPDIF E nvironm ent Operating environment 5.1.1 Temperature 5°...
  • Page 8 Technical Specifications PDP4273M 6.11 Color temperature Contrast and Brightness at Normal; Color temperature set at Middle x=0.285±0.02 y=0.293±0.02 6.12 Cell Defect Specifications Subject to Panel supplier specification as appends. Front Panel C ontrol B utton SEL. Up / Down Button Select the up or down item in OSD menu.
  • Page 9 Technical Specifications PDP4273M 12. Remote Control Standby(<!>): Press this button to turn off to standby and turn on from standby. 2 Mute(K): Press this button to quiet the sound system. Press again to reactivate the sound system. 3 Number buttons: Use these buttons to enter the password.
  • Page 10 Technical Specifications PDP4273M 13. Support the Signal Mode A. VGA Mode Horizontal Vertical Resolution Frequency Frequency (KHz) (Hz) 31.50 60.00 c±j\ r\ A&n 640 X 480 37.86 72.81 35.16 56.25 37.90 60.32 800 X 600 46.90 75.00 48.08 72.19 1024x 768 48.40 60.00 B.YPbPr Mode...
  • Page 11 Technical Specifications PDP4273M 9 / 6 0...
  • Page 12 ZhonaShan KAWA Electronic Inc M T 820 2 B lo c k 1 0 / 6 0...

  • Page 13: Circuit Diagram

    Circuit Diagram - Main (Video) board - Keypad board - Remote control receiver board - External L/R Speakers board - Remote control board...
  • Page 14 11/60...
  • Page 15 LVDSVDD »LVDSGND S C L »SCL SD A — JRST# »URST# M T 8 2 0 2 E (P B G A 388) LCDTV BOARD 4 LAYERS FOR A K A I 3202JP3 »8202JP3_ GPIO2 »GPIO2 GPIO4 »GPIO4 — GPIO14 »9 V 1.
  • Page 16 _____ SB33B Pow er ON alive source 1+ CE7 = := „-p.. 100uF/J"- A Z 1 11 7-3.3V SB33 SB33A SB18A A Z 1 1 1 7 /a d j 5VSB SB33A N G O U T (S > OUT >...
  • Page 17 SB333 CLK1 D OO -)->AUDIO_GND AADCVSS *3 ? s ' * »AAÜCVSS PLLVDD1 -»LVDS_GND PLLVDD- NC BALL LVDS GND -»VFE_GND >>VI[0..23] PLLVSS2 NC BALL ÜM ->>VFE_GND1 PLLV002 NC BALL »HÜMIMCLK .VÜS GND PLLVSS3 ► S hümibclk AVDD VAD1 LLVÜÜ3 ->>AVDD_VAD1 PLLV003 »S hümilrck...
  • Page 18 S T A N D B Y A N A LO G PO W ER NO R M A L A N A LO G PO W ER ASB18A ASB18A XTALVDD — XTALVDD XTALVDD ADCVDD »ADCVDC AVICM »AVICM PWM2VREF »PWM2VREF DACFS »DACFS LVDDA...
  • Page 19 DV25B DV25B D1V25 DQ C VDDQ VSSQ VDDQ D RA7 VSSQ VDDQ ■Q S I0--31 w A_DQS[0..3] 3 LDQS Z ^ S s A_RA|0--11] 3 A_BA[0--1] VREF D_RA11 E-T O f A_DQM[0--1] 3 A_DQ[0--31] 3 A_CLK A_RAS# D_DQ0 A_CAS# D1V25 A_WE# A10/AP D_DQ3...
  • Page 20 AVCC A Z 1 11 7-1.8 DV33B DV33B AVCC CE609 » VII0--23] HDMICEN-------- HDMICEN CE610 + CE611 + CE612 HDMIODCK " T ' 10uF/16^ 0 1u CB21 HDMIODCK 0-1uF 100uF/16v 47uF/16v SOT223/SMD 47uF/16v HDMIDE HDMIHSYNC >> HDMIHSYNC HDMIVSYNC >> HDMIVSYNC >>DE_SOG OVCC >>INT0#...
  • Page 21 1 8 / 6 0...
  • Page 25 N E A R LY 8202 N E A R LY V G A CON RED+ V G A IN RED- GREEN+ GREEN GREEN- BLUE BLUE+ BLUE BLUE- VGASOG VGASOG VGAHSYNC# VGAHSYNC# 3 VGAVSYNC# VGAVSYNC# 3 VGAR_IN VGAL_IN ■ VFE_GND 2,3, VGA_PLUGPWR VGA PLUGPWR...
  • Page 27 > > IR 3 ,1 5 G P I0 1 0 — G P I0 1 0 S B 33 B G P I0 1 2 — G P I0 1 2 G P I0 1 3 — G P I0 1 3 G P I0 1 4 —...
  • Page 28 C VBS J0 T V GND FQ1216 : PAL a d d r e s s FQ1236 : NTSC t u n e r A D C JIN 4 1,7,9 TUNER S IF IN T S C 4.5M H R418 C649 820pF 560pF...
  • Page 30 A 0 S D A T A 2 GPIO DECRIPTION » A 0 S D A T A 2 A 0 M C L K N A 0 M C L K A 0 B C L K UP3_4 : SW SCL S A 0 B C L K A 0 L R C K »...
  • Page 31 2 8 / 6 0...
  • Page 32 V0L_UP V0L_DN B602 MENU > > P_UP P_DN (l_I i_ _ i , < .C602 INPUT " 1 1 T i OPEN POWER 1 0 0 XS621 Öl- m jO XS601 C0NN9 SP 1 »R601 s f l C0NN6 < / > IQ v) 'O Ul I IR_REC...

  • Page 33: Remote Control

    /''O— / o - ✓°-| ✓o-| /'o - , y o -| VD701 y o — | C702 BT701 X ° n IN4148 „ 100PF OK62 9K 61 O K29 OK63 OK32 0K 31 OK30 I h - f ^O-H I ^ O H »...

  • Page 34: Basic Operations & Circuit Description

    Basic Operations & Circuit Description M O D U LE There are 1 pcs panel and 9 pcs PCB including 2 pcs X/Y Sustainer board, 1 pcs XBUS board, 1 pcs SDM-U board, 1 pcs SDM-D board, 2 pcs ABUS (L and R) board, 1 pcs Logic (Signal Input) board, and 1 pcs PSU board in the Module.
  • Page 35 Parts position Sub PSU SDM-U XSUS YSUS XBUS External Speaker SDM-D Terminal Power Switch EMI Filter + AC Inlet Keypad and (Logic, behind remote control the Main Board) ABUS-L ABUS-R receiver 3 2 / 6 0...
  • Page 36 Basic operation of Plasma Display 1. After turning on power switch, PSU board sends 5Vst-by Volt to Main IC MT8202 waiting for ON signals from Key Switch or Remote Receiver. 2. When the ON signal from Key Switch or Remote Receiver is detected, MT8202 will send ON Control signals to Power.
  • Page 37 PCB function 1. PSU and Sub PSU: (1). Input voltage: AC 120V, 60Hz. (2). To provide power for PCBs. 2. Main board: To converter S signals, AV signals, Y Pb/Cb Pr/Cr signals, HDMI signals and D-SUB signals to digital ones and to transmit to Control board. 3.
  • Page 38 PCB failure analysis 1. LOGIC: a. Abnormal noise on screen. b. No picture. 2. MAIN : a. Lacking color, Bad color scale. b. No voice. c. No picture but with signals output and OSD. d. Abnormal noise on screen. 3. PSU and Sub PSU: No picture, no power output. 4.

  • Page 39: Main Ic Information

    Main IC Information - M13S128168A (ESMT) 2M x 16 Bit x 4 Banks Double Data Rate SDRAM - MT8202 MT8202G is a highly integrated Single-Chip for LCD TV supporting video input and output format up to HDTV. It includes 3D comb filter TV decoder to retrieve the best image from popular composite signals.

  • Page 40: Panel Information

    Panel Information FHP A3 PANEL DATASHEET JlJ.LI.L! [-v. Specification..........10.2.3 ( Jrher Specific a lion........JIJ. L!. I nterface L^nal Spec Lfirat Lon..... JI > . L!. :ï I [ j j : ■ i _ l r S ijj.i -i-.i J Lleftn L e ion a Jiri L \ 1 1 u i ■...
  • Page 41 FHP A3 PANEL DATASHEET WARNINGS / CAUTIONS / NOTICES 7 0 PREVENT TOsslE-LE DANGER. D A M A G E AN D BODILY HARM W HEN E I T O G I H E PLASM A DISPLAY MODULE. ELEASE CONSIDER AN D OBSERVE A L L WARMINGS CAUTIONS AN D NOTICES CONTAINED IN THIS SECTION.
  • Page 42 FHP A3 PANEL DATASHEET C a u tio n E allure t( ■ lured llu- foil la v big cautions when liandlbig Uic F D P modulo coidd residí in personal injury or property damage: I . Do not set Hie PDF module on an tu ist able. 1 1 > :iv 11 ig. ■ n r L i ulli led s u rfao ■ The PDI1 1 mi kIl de cot ild ■ : I n )p off and causo sorii >us personal injLdy or dam ago dio pioduct.
  • Page 43 FHP A3 PANEL DATASHEET N o tic e fo r S y s te m D e s ig n e r s L. [J the PDP module displays a fixed pul k i n on IK - screen. the Ijnage-slorage. wtUcJi means a dJfferctice Jn lJi>...
  • Page 44 FHP A3 PANEL DATASHEET N o tic e o f O p e r a tio n a n d H a n d lin g o f th e P D P M o d u le L. [J Nie E ' - ’t^E '-1 module displays a fixed pattern on the v re n i li can make a diffnetice Ln llio luminance und cl iramaticiLy betwenia fixed pul le n u i reu und tlie o ü...
  • Page 45 FHP A3 PANEL DATASHEET I-I. The information and circuit diagrams Jn Ihis document are presented as examples of display application, und are nc.'l Liu ended lo be incorporated Ln devices for actual use. Also. FUJITSU H ITA C H I PLASMA DISPLAY is unable to assume responslbdliy J"i u ifrLi jgement of ;inv patent rigfrls or oilier rights of UiJi c I parries arising from die u se d lliis Information oi' drcuJI diagrams.
  • Page 46 FHP A3 PANEL DATASHEET S to ra g e o f P D P M o d u le 1. W hen storing the PDP module, select an environmentally controlled place. Also, avoid any environment that exceeds the module's tem perature or humidity specifications. Sometimes the PD P module does not discharge easily after long storage.

  • Page 47: Block Diagram

    FHP A3 PANEL DATASHEET HH6cinf42-i]ichl High D eiinm cji F la a n a Display Module Produire Speciiicacian Description Has ■lyaci^.icu imijjri q^pLei :d :li !. 06™(42-iudj) ]adi ¿efiniriai pO rcna. chpb.y zer. H a- m rriJ t jd ji AU?i media:.

  • Page 48: Display Characteristics

    FHP A3 PANEL DATASHEET 4 -. Display Characteristics Display Performance (oUtfioLnf! SpOC ifi( jtLÜJl) ~Jen Hxiacutzi 1.024 x Vertkz:' .024 pixt!:- (] pixel = 1KJGB ait pj-:el: Display pi.\Eb IlCEfb-red i “ plT-' D L-LpliV TJ.I' pi’oL-, Hoiscutl: 'l~ ' 2 x Vertikal E-034sn"bpbceh P.M el pitch Hoiacnöl0 *X ) '"in >...
  • Page 49 *4 Contrast r a t i o with the display r a t i o of l ° o i s for a reference. Contrast r a t i o i s calculated from the following equation . A v e r a g e d L u m in an ce o f the 9 -lo catio n s ( 10 % ) C on trast = pHp A3 pANE|_ DATASHEET A ll black Luminance...

  • Page 50: Mechanical Specification

    FHP A3 PANEL DATASHEET 4.4 Noise Condition S |.> . iflcation Mc-asnr^mem ai I from the- From cenK r of p n u l Elackflronnd ii» ::< i- - : less than l&dEJ (Aj N > i i ■ -ii i lie U r : D igital E ' jeqi Ji i ic> :V i la 1 [.ess dian 25dl3 [Aj ] j I m.jud ft ki-.iA-rj - ] ■...
  • Page 51 ifl.Z...

  • Page 53: Spare Part List

    (M O N ITO R ) U SA 6> 200 -4 2D 1 41 -S M K 11 A F R O N T C A B IN E T B LA C K W /AKAI 1.000000 Piece ( W /O BBE & HDMI SILK) ENG 421D (S-PW 181) 4273M A 7>...
  • Page 54 PDP4273M Spare Part List 19> SP O N G E 955X 10X 7.0M M W / 329-095510-70 2.000000 Piece A D H E S IV E 20> 364-42S D 01-01H R EM O TE LEN S PVC 1.000000 Piece 21> 384-42D 103-S M U 06H PVC SH E E T FO R T E R M IN A L (S- 1.000000...
  • Page 55 PDP4273M Spare Part List 38> 5 53 -006009-25A SH IE LD G A S K E T 60X 9X 2.5M M W / 4.000000 Piece C O D U C TIV E A D H E S IV E 39> 5 53 -008009-10A SH IE LD G A S K E T 80X9X1.0M M 4.000000...
  • Page 56 PDP4273M Spare Part List 58> 590-421D 01-01 W A R R A N T Y C AR D AKAI ENG 1.000000 Piece PD P 4273M USA 59> 5 93-421D 01-10A P A AKAI IN SE R TIO N C AR D ENG 1.000000...
  • Page 57 PDP4273M Spare Part List 77> E7301-010002 B A T TE R Y A A A R 03P 1.5V <2> 2.000000 Piece 78> PCB A S S Y PSU MAIN FPF23P- 1.000000 E7801-200001 100/240A M U R A TA 79> PCB A S S Y PSU PDP 5V /9V /24V E7801-P01501 1.000000 FO R (FHP) M T8202 M E G M E E T...
  • Page 58 « G M O raw caacr «n v toe sun 277-46SD01-03S FUNCTmi KM IB 329-002510-50 S P O N G E 25X 10X 5JV M V/ADHESIVE 200-42D 102-S M K 11A FRDIT CABDET B L A C K V/AKAI ] TEM PART ND. DESCRIPTION REMARK ITEM PART ND.

  • Page 59: If You Forget Your V-Chip Password

    If you forget your V-Chip Password - O m nipotence V-C hip Passw ord: 8202. Using the “Change Password” item □ When enter the “ V-Chip” menu, select “Change Password”. □ Press ▲ or ▼ button to highlight the “Change Password” item. □...

  • Page 60: Software Upgrade

    Software Upgrade Process of update MT8202 P re p a rin g : Connect RS232-VGA download line, One connector is connected to VGA connect port of Plasma TV ,while another side is connected to PC COM port. Store the MtkTool into the PC . D o w n lo a d in g : 3 .
  • Page 61 Choose the b it rate as 115200. Select the update binary by pressing browse button. F or exemple,the binary file name is (this update firmware will be sent to your side) PD P4210EA1_V09.bin. Press Upgrade button and start update process. 5 8 / 6 0...
  • Page 62 ¿ . ■ t k l o o l - 8 2 0 2 - [ F l a s h U pgrad e] F o r t Baud R a t e Window Help | M T 820 2 |C0M1 j - J 1 1 5 2 0 0...
  • Page 63 turn off power and wait indicator light is off. Turn on power and TV can work. C h e c k in g It is needed to check the version o f the firmware for M T 8202 which has been download into the Plasma T V .

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