Toshiba 46HM84 - 46" Rear Projection TV, Service Manual

Page 1: ...SERVICE MANUAL Projection Television 46HM84 52HM84 62HM84 FILE NO 020 200401 REVISED 2 Published in Japan Jan 2005 YC ...

Page 2: ...ATION OF CONTROLS 8 PROGRAMMING CHANNEL MEMORY 10 LAMP UNIT REPLACEMENT 12 PARTS REPLACEMENT IN LIGHT ENGINE 15 LIGHT ENGINE REPLACEMANT 17 EXPLODED VIEW 19 MECHANICAL DISASSEMBLY 20 CHASSIS REPLACEMENT PARTS LIST 21 PC BOARDS TOP AND BOTTOM VIEW 29 TERMINAL VIEW OF TRANSISTORS 41 CIRCUIT BLOCK DIAGRAM 44 SPECIFICATIONS END APPENDIX CIRCUIT DIAGRAM ...

Page 3: ... manual carefully The use of substitute replacement parts which do not have the same safety character istics as specified in the parts list may create shock fire or other hazards PRODUCT SAFETY NOTICE CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS WARNING Service should not be attempted by anyone unfamiliar with the necessary precautions on this receiver The following are the necessary precauti...

Page 4: ...n will change the value of data in the range from 00H to FFH The variable range depends on the adjusting item 5 EXIT FROM SERVICE MODE 1 Pressing POWER button to turn off the TV once SERVICE MODE 1 ENTERING SERVICE MODE MUTE S Service mode display 3 While pressing the MUTE button press MENU button on TV set 2 Press MUTE button again and keep pressing 1 Press MUTE button twice on Remote Control 2 D...

Page 5: ...SCL SDA short circuit BUS line ACK acknowledge check OK Normal Sync signal check Green display Normal Red display NG MAIN Main sync SUB Sub sync when turn on the PIP ID code for TV Set Version of EEP Data for OPT SELF CHECK NO 23 POWER 000 BUS LINE OK BUS CONT OK BLOCK MAIN SUB SET ID 80 E2P VER 08 OPT1 00 OPT2 A0 SW VER DLE May 13 2004 17 HDMI NO ERR CDDE 00 BEP SW VER 42 E2R VER 02 TIME TV LAMP ...

Page 6: ...he lamp is not working properly after the third automatic reset see item 7 U FAN Light engine unit has stopped BUS line is damaged The color wheel has stopped Temperature rises abnormally U is restoration by the user Solution The TV automatically will try to reset itself three times Turn the POWER OFF and unplug the power cord Review How to replace the lamp unit on pages 12 14 to ensure that the l...

Page 7: ...IAS OPT0 TV SET OPTION 1 Note The image system data of RCUT CNTX is different by each image format The NTSC value is indicated in the table 60H 60H 64H 48H 53H 5FH 76H 20H D0H 40H 7FH 00H 00H 00H FAH 03H 00H A0H 40H 14H 03H 0FH 05H 14H 04H 23H 4AH 63H 6FH 73H 20H 91H 24H 73H 01H Item Name of adjustment Preset Data OPT1 TV SET OPTION 2 TVOP TV OPTION PLLW0 PLL WAIT TIME PLLW1 PLL WAIT TIME PLLW2 PL...

Page 8: ...NU VOLUME CHANNEL EXIT TV VIDEO POWER AUDIO IN Green ON Touchpad key being pressed Red ON Power ON See page 60 for additional LED indications Channel zy Volume x Green and Red LED indicators Side Control touchpad on TV front Gently touch the printed keys Front Back deo aud o pu s HDMI IN ANT 2 IN ANT 1 IN VIDEO 1 2 ColorStream HD1 HD2 Audio OUT Push to open ANT OUT AUDIO IN Variable Audio OUT Back...

Page 9: ...ugh programmed channels Channel Numbers 0 9 100 allow direct access to channels VOL volume y z adjusts the volume level CH RTN returns to the memorized channel MENU allows access to on screen programming menus ENTER activates the function settings in the menu y z x select or adjust programming menus POP CH y z selects the POP picture out picture channel FAV y z cycles through favorite channels FAV...

Page 10: ... 1 2 TV CABLE CH PROGRAM ADD ERASE SELECT SET ENTER 4 Press ENTER 5 Press z to select CH PROGRAM LANGUAGE SET UP CLOCK SET 0 0 0 0 ENGLISH ANT 1 2 ANT1 TV CABLE CABLE ADD CH PROGRAM ADD ERASE MOVE START ENTER 6 Press ENTER to start channel programming The TV will automatically cycle through all the TV or Cable channels depending on which you selected and store all active channels in the channel me...

Page 11: ...channel you must select the channel using the Channel Number buttons 2 Press MENU and then press x or until the SET UP menu appears 3 Press y or z to highlight ADD ERASE and then press ENTER to display the pull down menu LANGUAGE SET UP CLOCK SET ADD ERASE ANT 1 2 TV CABLE CH PROGRAM ADD ERASE SELECT SET ENTER 4 Press y or z to select ADD or ERASE depending on the function you want to perform 5 Re...

Page 12: ... lamp unit is replaced Note The lamp unit is designed so broken lamp glass remains se curely inside the lamp unit CAUTION Always handle the lamp unit with care The lamp unit in this TV was designed for safe replace ment by consumers however if the lamp unit is subjected to inten tional abuse such as excessive mechanical abuse or handling by children or pets the unit may break exposing edges or pin...

Page 13: ...nit handle and gently pull the lamp unit straight out of the TV Set the old lamp unit aside 6 Carefully insert the new lamp unit straight into the TV until it is fully seated Note Never subject the lamp unit to excessive shock Never touch the lamp unit glass or otherwise get it dirty Doing so may affect the image quality and reduce the service life of the lamp See Cleaning the lamp unit glass belo...

Page 14: ...10 Plug in the power cord and turn on the TV After the initial warmup period which may take up to 45 seconds for full picture brightness the TV should operate nor mally If any of the following conditions exist turn off the TV unplug the power cord and repeat steps 1 9 to en sure that the lamp unit and lamp unit door are installed correctly No picture Dark picture TV will not turn on ...

Page 15: ...ue in bar code Adjusted value Hex 1 2 Adjustment is made from service mode The adjusting items consist of CWDL CWDH and DMDB When CW delay number of the data bar code is 0450 Double 45 0 to form hexadecimal number HEX The adjusted value becomes 5A for CWDL and 00 for CWDH If hexadecimal number forms 3 or 4 digits the latter 2 digits indicate CWDL while the first 2 digits indicate CWDH For 3 digits...

Page 16: ...B 0860 00 AC 0865 00 AD 0870 00 AE 0875 00 AF 0880 00 B0 0885 00 B1 0890 00 B2 0895 00 B3 0900 00 B4 0905 00 B5 0910 00 B6 0915 00 B7 0920 00 B8 0925 00 B9 0930 00 BA 0935 00 BB 0940 00 BC 0945 00 BD 0950 00 BE 0955 00 BF 0960 00 C0 0965 00 C1 0970 00 C2 0975 00 C3 0980 00 C4 0985 00 C5 0990 00 C6 0995 00 C7 1000 00 C8 1005 00 C9 1010 00 CA 1015 00 CB 1020 00 CC 1025 00 CD 1030 00 CE 1035 00 CF 10...

Page 17: ... screws holding chassis of ballast power unit SK03 to detach the chassis Note Treat with enough care so as not to damage the cable for lamp power FAN for cooling lamp SK06 FAN for cooling heatsink SK07 Ballast power unit SK03 2 3 Detach the ballast power unit by removing 4 substrate stoppers that hold the ballast power unit CAUTION Precautions When Exchanging Ballast Power Units When you install a...

Page 18: ...TICALENGINE PJ TB25 46 Incl SK02 SK08 2 23405372 OPTICALENGINE PJ TB25 52 Incl SK02 SK08 3 23405379 OPTICALENGINE PJ TB25 62 Incl SK02 SK08 SK01 1 23405384 OPTICALENGINE PJ TB25 46S Incl SK03 SK08 2 23405385 OPTICALENGINE PJ TB25 52S Incl SK03 SK08 3 23405386 OPTICALENGINE PJ TB25 62S Incl SK03 SK08 SK02 23587201 SERVICE KIT SHP66 LAMP UNIT SK03 23122468 POWERUNIT RPB 4434ZA SK04 23762354 PC BOARD...

Page 19: ...screws 4 screws M4 16 4 screws M4 16 3 screws A201 A222 K601 W661 A204 A101 W662 UV03 A333 UA06 A227 A225 A205 UA03 A026 A025 A215 A271 A401 A101 K501 K502 Note A205 Back Cover Assy includes A204 W661 and W662 except A101 UD02 OPSS SCALER BOARD U802 MAIN POWER BOARD U101 IF AUDIO BOARD U103 BACK AV BOARD 2 screws UA02 ...

Page 20: ...W661 and W662 1 Rear Cover Removal 4 Speaker Removal 5 Bracket Removal 6 Optical Engine Removal 12 screws 13 screws 2 screws 2 screws 3 screws A201 UA03 A026 A025 A271 4 screws 10 screws K601 2 screws 1 screw 4 screws 4 screws A101 A205 A401 UV03 A333 A227 A222 UA06 A204 W661 W662 A215 2 screws UA02 ...

Page 21: ...63 24073086 ELECTROLYTIC 50V 10UF M 3A C665 24109103 CERAMIC CHIP 50V B 0 01UF K C666 24073084 ELECTROLYTIC 50V 4 7UF M 3A C667 24794100 ELECTROLYTIC 16V 10UF M C668 1 24105560 CERAMIC CHIP 50V CH 56PF J 2 24436560 CERAMIC DISC 50V SL 56PFJ 3 24105560 CERAMIC CHIP 50V CH 56PF J C669 1 24105560 CERAMIC CHIP 50V CH 56PF J 2 24436560 CERAMIC DISC 50V SL 56PFJ 3 24105560 CERAMIC CHIP 50V CH 56PF J C68...

Page 22: ...CS09 24092795 CERAMIC CHIP CK73B 6 3V 2 2UP K CS10 24092795 CERAMIC CHIP CK73B 6 3V 2 2UP K CS11 24092795 CERAMIC CHIP CK73B 6 3V 2 2UP K CS12 24092795 CERAMIC CHIP CK73B 6 3V 2 2UP K CS13 24092795 CERAMIC CHIP CK73B 6 3V 2 2UP K CS14 24092795 CERAMIC CHIP CK73B 6 3V 2 2UP K CS15 24092795 CERAMIC CHIP CK73B 6 3V 2 2UP K CS16 24092795 CERAMIC CHIP CK73B 6 3V 2 2UP K CS25 24109103 CERAMIC CHIP 50V B...

Page 23: ... 22K OHM J R684 24011223 CHIP METAL FILM 1 20W 22K OHM J R687 24011103 CHIP METAL FILM 1 20W 10K OHM J R688 24011224 CHIP METAL FILM 1 20W 220K OHM J R693 24000445 CHIP JUMPER 1608TYPE R697 24553561 OXIDE METAL FILM 1W 560 OHM J R698 24011103 CHIP METAL FILM 1 20W 10K OHM J R699 24011103 CHIP METAL FILM 1 20W 10K OHM J R810 24568479 CERAMIC COVERED 7W 4 7 OHM J R811 24007061 CERAMIC COVERED 2W 1 8...

Page 24: ...P METAL FILM 1 20W 4 7K OHM J RS35 24011102 CHIP METAL FILM 1 20W 1K OHM J RS36 24011102 CHIP METAL FILM 1 20W 1K OHM J RS37 24011223 CHIP METAL FILM 1 20W 22K OHM J RS38 24011223 CHIP METAL FILM 1 20W 22K OHM J RV001 24011102 CHIP METAL FILM 1 20W 1K OHM J RV002 24011101 CHIP METAL FILM 1 20W 100 OHM J RV003 24011102 CHIP METAL FILM 1 20W 1K OHM J RV004 24011101 CHIP METAL FILM 1 20W 100 OHM J RV...

Page 25: ... 20W 33 OHM J RY589 24000445 CHIP JUMPER 1608TYPE RY590 24011103 CHIP METAL FILM 1 20W 10K OHM J RY591 24011101 CHIP METAL FILM 1 20W 100 OHM J RY592 24011101 CHIP METAL FILM 1 20W 100 OHM J RY593 24011330 CHIP 1 20W 33 OHM J RY594 24011330 CHIP 1 20W 33 OHM J RY595 24011330 CHIP 1 20W 33 OHM J RY596 24000445 CHIP JUMPER 1608TYPE COIL TRANSFORMERS L101 23289845 COIL PEAKING TRF4680AT L103 23289844...

Page 26: ...STOR 2SA1576A106 QY513 23314994 TRANSISTOR 2SA1576A106 QY514 23314994 TRANSISTOR 2SA1576A106 QY515 23314994 TRANSISTOR 2SA1576A106 QY516 23314994 TRANSISTOR 2SA1576A106 QY518 23314993 TRANSISTOR 2SC4081 Q QY522 23314993 TRANSISTOR 2SC4081 Q D601 23316231 DIODE 1SS355 D602 23316231 DIODE 1SS355 D603 23316231 DIODE 1SS355 D604 23316231 DIODE 1SS355 D605 23316231 DIODE 1SS355 D606 23316231 DIODE 1SS3...

Page 27: ...T EH B4B EH F1 TV4 P906 23367070 PLUG NP 2 5MM G JST EH B10B EH F1A P907 23367072 CONNECTOR PLUG NP 2 5MM G JST EH B12B EH F1A PA01 23713240 CONNECTOR 15FE BT VK N JST 15FE BT VK N PB22 23368578 CONNECTOR PLUG 4P 2 5MM G JST EH B4B EH F1 TV4 PJ60 23368579 CONNECTOR PLUG 5P 2 5MM G JST EH B5B EH F1 TV4 PJ61 23367071 CONNECTOR PLUG NP 2 5MM G JST EH B11B EH F1A PJ63 23368579 CONNECTOR PLUG 5P 2 5MM ...

Page 28: ...ASSY A225 23940084 PIECE STRIKER A227 1 2 23450809 PANEL PIECE TRIM TOUCH PAD 3 23450812 PANEL PIECE TRIM TOUCH PAD A231 3 23940100 PIECE PIECE SIDE RIGHT A232 3 23940099 PIECE PIECE SIDE LEFT A271 1 23405378 OPTICALENGINE PJ TB25 46 Incl SK02 SK08 2 23405372 OPTICALENGINE PJ TB25 52 Incl SK02 SK08 3 23405379 OPTICALENGINE PJ TB25 62 Incl SK02 SK08 A278 23084267 BRACKET SPEED CLIP A305 23717197 SC...

Page 29: ...03 RS17 LY502 LY013 RS22 RS04 RS23 RV43 RV61 LV13 RS34 CV30 RV89 R288 R266 RV40 RY587 CY590 CY540 RV22 RV324 RV334 RV332 CV246 RV006 RY515 RV335 RY536 DV242 R347 CV254 CY508 DV243 RY514 RY561 R348 CV251 QV005 CV253 RV325 QV91 PS01 RY593 RY596 RY502 LY506 RV002 QV006 RY592 RV005 RY590 RV008 RV333 RV001 RV23 CV247 RV331 CY591 RV003 QY510 CY518 RV330 CY505 QV004 PV14 RV007 QV008 RY519 RY588 RY591 CV1...

Page 30: ...LY105 RS12 CS11 RY551 CY101 RY104 RY101 QY504 CY541 LY103 CS26 CY110 CS27 RY107 QY503 LY100 CY117 RS08 QY101 CS14 RY105 RY509 CY106 QY506 CY107 RS05 CY111 RY511 CY102 CS07 RS07 CY536 RY508 CS08 RY103 CS30 GJ02 CS29 CS12 RY578 RS13 RY512 CY104 CY116 CY506 RY102 RY110 CY108 RS06 LY104 QY102 RY109 RS14 CY109 CS05 CY112 RY106 QY103 CY103 B CV02 CV06 CV71 RV11 RV12 RV39 CV03 RV14 CV01 RV147 RV03 RV07 L...

Page 31: ...8213 L884 C890 Q862 4A 125V 5A 125V 4A 125V 500mA 125V R863 D865 R868 R869 C810 Q801A R811 C861 L862 F899 C863 C862 R867 R810 P811A C866 C868 R862 R865 C864 D861 R860 T862 F860 C809 Q801 D863 R861 R864 L861 R866 D866 D864 D867 2A 250V 4A 125V C865 R870 D849 SR82 R849 R8904 D8903 D8912 D8902 R8910 R8903 Q8904 R8905 R8902 Q8901 C8912 L8941 L8940 D8914 D8951 C8933 C8905 Q894A R8941 Q8940 C8941 C8931 ...

Page 32: ... Q172 RY161 R150 RY160 C105 GJ103 C109 QY160 GJ104 G101 D102 CY105 CY161 GR103 G102 R677 Q662 R667 Q661 Q664 R663 R673 R698 C665 R672 C621 R621 D628 R601 R668 R684 GJ106 C622 R604 R665 R683 R603 R699 Q681 R602 GJ105 R671 R622 R676 R662 R666 R661 Q682 R675 C601 C602 R681 R682 R674 IF AUDIO BOARD PD1775 U101 BOTTOM FOIL SIDE F AV BOARD PD1773A 2 UV03 BOTTOM FOIL SIDE 23547618 B1 V 0 S701 PV60 PV02 L...

Page 33: ...OPSS SCALER BOARD 46HM84 PD1870C1 52HM84 PD1870A1 62HM84 PD1870B1 UD02 BOTTOM FOIL SIDE 37 38 ...

Page 34: ...OPSS SCALER BOARD 46HM84 PD1870C1 52HM84 PD1870A1 62HM84 PD1870B1 UD02 TOP COMPONENT SIDE 39 40 ...

Page 35: ...A1788 2SA1306 2SA1186A 2SC752GTM 2SC2482 2SC2655 2SC4721P 2SC752 2SA562TM 2SA1015 2SC1815 2SC2878 2SC1740S 2SC2120 2SA9335 2SA1788 RN2203 RN2201 RN2004 RN1203 RN1204 RN2204 RN1205 RN1202 RN1201 2SD1554 2SD2253 2SD1556 2SD2553 2SC5143 E C B B C E B CE B CE B C E E C B E C B ON4409 B C E ...

Page 36: ...1 2 watt 1 2S Carbon compsistion of 1 2 watt 1RF Fuse resistor of 1 watt 10W Cement of 10 watt K 10 G 2 F 1 2 CAPACITOR Unless otherwise noted in schematic all capacitor values less than 1 are expressed in µF and the values more than 1 in pF All capacitors are ceramic 50V unless otherwise noted as the following marks Electolytic capacitor Mylar capacitor 3 The parts indicated with have special cha...

Page 37: ...52 34 52 35 52 36 52 37 52 38 52 39 52 40 52 41 52 42 52 43 52 44 52 45 52 46 52 47 52 48 52 49 52 50 52 51 52 52 52 DVCD TC90A92AFG Circuit DVCD POWER Circuit GENESIS Circuit SDRAM Circuit GENESIS_POWER Circuit GENESIS_IIC Circuit SCALER DIGITAL INPUT Circuit SCALER CAPTURE INPUT Circuit DDR SDRAM Circuit SCALER PLL Circuit OSD for North America Circuit IIC Circuit 94TB POWER Circuit LVDS OUT Cir...

Page 38: ... 44 CIRCUIT BLOCK DIAGRAM ...

Page 39: ...0 mV rms 30 modulation equivalent 2 2 k ohms or less VARIABLE AUDIO OUTPUT 0 300 mV rms 30 modulation equivalent 2 2 k ohms or less HDMI INPUT HDMI compliant type A connector HDCP compliant E EDID compliant Suggested scan rates 1080i 480p 480i 720p HDMI Audio 2 channel PCM 32 44 1 48 kHz sampling frequency 16 20 24 bits per sample Specifications Design and specifications are subject to change with...

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