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Toshiba 34JH9UH Service Manual

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FILE NO. 070-200427
SERVICE MANUAL
Color Television
34JH9UH
Sep. 2004 (YC/D)

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Summary of Contents for Toshiba 34JH9UH

  • Page 1 FILE NO. 070-200427 SERVICE MANUAL Color Television 34JH9UH Sep. 2004 (YC/D)

  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ............................3 SET-UP ADJUSTMENT ............................4 SERVICE MODE ..............................6 DESIGN MODE ................................ 9 ELECTRICAL ADJUSTMENTS ..........................10 CIRCUIT CHECK ..............................17 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ..........................18 LOCATION OF CONTROLS ...........................

  • Page 3: Chapter 1 General Adjustments

    CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazardous 2. The only source of X-RAY RADIATION in this TV receiver X-RAY RADIATION.

  • Page 4: Set-Up Adjustment

    WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF SERVICE MANUAL. SET-UP ADJUSTMENT ■ The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows : 1.
  • Page 5 (5)Adjust the sub-4-pole magnets only in case there is any deviation of Xv bow-shaped convergence. (To be usually set at the initial position) Align both sides with the sub-4-pole magnets and minimize the deviation of blue and red with the main 4-pole magnets. Xv bow-shaped deviation of convergence red/blue blue...

  • Page 6: Service Mode

    SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press o button once on 2) Press o button again to 3) While pressing the o button, Remote Control. keep pressing. press MENU button on TV set. Item Data or Sound Mute (Service mode display) 2.
  • Page 7 4. SELECTING THE ADJUSTING ITEMS 1)Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2. (t button for reverse order) Refer to table-2 for preset data of adjustment mode. (See SETTING & ADJUSTING DATA on page 27) 5.
  • Page 8 The diagnosis will begin to check if interface among IC’s are executed properly. 2) During diagnosis, the following displays are shown. JH9_000 34JH9UH Firmware: Version information of microprocessor In case of file name : JH9 and Version : 1.00 indicates[JH9_100].

  • Page 9: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 3) The following displays 1) Select the Service mode. 2) While pressing CALL button on Remote and press MENU button on TV. are shown on the screen Press Press JH9_039 (Design mode) Version information of microprocessor Main tuner information Sub tuner information...

  • Page 10: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS ITEM ADJUSTMENT PROCEDURE FOCUS VR ADJ 1. Enter the service mode, then select any register item. 2. Press the TV/VIDEO button on the Remote until the black cross-bar pattern ap- pears on the screen. 3. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture screen.
  • Page 11 ITEM ADJUSTMENT PROCEDURE WIDTH 1. Call up the adjustment mode display, then select the item WID. (WID) 2. Press the ; – /+ button to get the picture so the left and rightedges of raster begins to lack. 3. Press the ; – /+ button to advance the data by 7 steps. Note : Check the horizontal picture position is correct.
  • Page 12 V/C system adjustment ADJUSTING ITEMS ADJUSTMENT PROCEDURE REMARKS AND POINTS Cutoff adjustment and 1) Setting to horizontal alignment, turn the screen VR to No outside lighting shall be allowed. white balance adjust- stop where the brightness lines are slightly luminous. Measurement shall be ment (Adjustment shall be made so that they look almost...
  • Page 13 Circuit Adjustment (Procedure Manual for Deflection Adjustment) ADJUSTING ITEMS ADJUSTMENT PROCEDURE AND POINTS Focus Adjustment (1) Conditions : PAL RETMA ch Static (main): T461 Screen Size : Wide Dynamic : T461 Presentation Mode : Dynamic Only for 34-inch model Adjustment Procedure: 1) Turn the static VR knob to the “MIN.”...
  • Page 14 Horizontal adjustment * Deflection adjustment shall be made from PAL/100 Hz/WIDE mode. ADJUSTING ITEMS ADJUSTMENT PROCEDURE AND POINTS Hori- For PAL/100 Hz/WIDE <Adjustment condition> zontal Horizontal amplitude Horizontal adjusment shall be made using E-12CH Philips pattern and DY- (WID) NAMIC image mode. Side pin distortion (PARA) <Adjustment procedure>...
  • Page 15 Vertical adjustment ADJUSTING ITEMS ADJUSTMENT PROCEDURE AND POINTS Verti- For PAL WIDE 1) With E-12ch, WIDE mode, DYNAMIC and 100 Hz, adjust the vertical screen posi- Vertical amplitude tion (VPOS) and amplitude (HIT) as shown in the following figure: (HIT) Flags shall just be blinded.
  • Page 16 Geomagnetic compensation (chassis adjustment) ADJUSTING ITEMS ADJUSTMENT PROCEDURE AND POINTS Output voltage control Conditions: User control for geomagnetic compensation: 0 (GMF) Geomagnetic compensation coil: Unconnected Perform voltage measurement at both ends of RJ06 and adjust the volt- age to the following adjustable value with GMF of data adjustment mode: 0 ±...

  • Page 17: Circuit Check

    CIRCUIT CHECK HIGH VOLTAGE CHECK CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on this chassis. Checking should be done following the steps below. 1. Connect an accurate high voltage meter to the second anode of the picture tube. 2. Turn on the receiver. Set the BRIGHTNESS and CONTRAST controls to minimum (zero beam current). 3.

  • Page 18: Chapter 2 Specific Informations

    NCSAW NTSC CENTER SAW HEIGHT Geomagnetic VLIN V-LINEARITY Table-2 DESIGN MODE ADJUSTING ITEMS AND DATAS IN THE DESIGN MODE: DATA Item Name of adjustment Note RESET 34JH9UH OPT0 OPTION 0 ← OPT1 OPTION 1 ← OPT2 OPTION 2 ← OPT3 OPTION 3 ←...

  • Page 19: Location Of Controls

    LOCATION OF CONTROLS Front Press here to open r On-timer indicator the door. 7 POWER indicator f - 7 POWER switch Remote sensor a Input source selection Behind the door L/MONO VIDEO AUDIO S-VIDEO MENU MENU Channel position t s Headphone jack a (3) Video 3 input Menu...

  • Page 20: Remote Control

    Remote Control CALL Power on/Standby CALL (For Toshiba TV/VCR/DVD only) Number buttons (0-9) Input source selection 1 or 2 digit channel selection (a1 – a3, aC1, aC2) Selectable sound Selectable picture MENU EXIT MENU EXIT MENU • Volume – + •...

  • Page 21: Programming Channel Memory

    PROGRAMMING CHANNEL MEMORY • First, use the Auto tuning feature to preset all the active channels in your area automatically. Then, arrange the preset channels with the Manual tuning feature so that you can tune in only desired channels. • Use the Channel search operation if desired channels cannot be preset with the Auto tuning or if you would like to preset channels to specific position numbers one by one.
  • Page 22 E. Channel search operation Press the button to search up the band or the button to search down the band. Press the button repeatedly until your desired channel is displayed. When a station/satellite is found, it will be displayed. F. Auto Fine Tuning Press the button to turn the Auto Fine Tuning option On “...

  • Page 23: Chassis And Replacement Parts List

    • The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model number and Description. ∗ • The PC board assembly with mark is no longer available after the end of the production. Model : 34JH9UH Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 24 Location Location Parts No. Description Parts No. Description C565 24092785 CERAMIC CHIP, 10V B 0.47UF K C814 24092563 CERAMIC DISC, AC250V B 220PF K C815 24092567 CERAMIC DISC, AC250V E 1000PF M C568 24014104 CERAMIC CHIP, 16V F 0.1UF Z C572 24014104 CERAMIC CHIP, 16V F 0.1UF Z...
  • Page 25 Location Location Parts No. Description Parts No. Description C4427 24092789 CERAMIC CHIP, 6.3V B 1UF K C8131 24092795 CERAMIC CHIP CK73B 6.3V 2.2UP K C4460 24092796 CERAMIC CHIP CK732B 50V 220000PF K C8132 24092795 CERAMIC CHIP CK73B 6.3V 2.2UP K C4461 24092796 CERAMIC CHIP CK732B 50V 220000PF K...
  • Page 26 Location Location Parts No. Description Parts No. Description CA54 24015104 CERAMIC CHIP CK73B 6.3V 100,000PF K CV11 24092731 CERAMIC CHIP, 16V B 1UF K CA55 24092621 CERAMIC CHIP, 10V B 1UF K CV12 24092731 CERAMIC CHIP, 16V B 1UF K CA56 24092621 CERAMIC CHIP, 10V B 1UF K...
  • Page 27 Location Location Parts No. Description Parts No. Description CX339 24015105 CHIP CERA CAP B 6.3V 105K CX605 24015105 CHIP CERA CAP B 6.3V 105K CX340 24015105 CHIP CERA CAP B 6.3V 105K CX606 24015105 CHIP CERA CAP B 6.3V 105K CX341 24092795 CERAMIC CHIP CK73B 6.3V 2.2UP K...
  • Page 28 Location Location Parts No. Description Parts No. Description CX945 24092795 CERAMIC CHIP CK73B 6.3V 2.2UP K CZ34 24013270 CERAMIC CHIP, 50V CH 27PF J CX946 24092795 CERAMIC CHIP CK73B 6.3V 2.2UP K CZ36 24015104 CERAMIC CHIP CK73B 6.3V 100,000PF K CX947 24092795 CERAMIC CHIP CK73B 6.3V 2.2UP K...
  • Page 29 Location Location Parts No. Description Parts No. Description R362 24012223 CHIP, METAL FILM, 1/16W 22K OHM J R572 24012562 METAL FILM CHIP 1005 1/16W 5R6K J R363 24012472 CHIP, METAL FILM, 1/16W 4.7K OHM J R601 24011333 CHIP, METAL FILM, 1/20W 33K OHM J R370 24872103 CHIP, 1/16W 10K OHM J...
  • Page 30 Location Location Parts No. Description Parts No. Description R733 24366683 CARBON FILM, 1/6W 68K OHM J R942 24366392 CARBON FILM, 1/6W 3.9K OHM J R734 24366330 CARBON FILM, 1/6W 33 OHM J R943 24366392 CARBON FILM, 1/6W 3.9K OHM J R735 24366683 CARBON FILM, 1/6W 68K OHM J...
  • Page 31 Location Location Parts No. Description Parts No. Description R4466 24012102 CHIP, METAL FILM, 1/16W 1K OHM J RA11 24012101 CHIP, METAL FILM, 1/16W 100 OHM J R4467 24012332 CHIP, METAL FILM, 1/16W 3.3K OHM J RA12 24012101 CHIP, METAL FILM, 1/16W 100 OHM J R4471 24011223 CHIP, 1/20W 22K OHM J...
  • Page 32 Location Location Parts No. Description Parts No. Description RA83 24012330 CHIP, METAL FILM, 1/16W 33 OHM J RJ05 24310159 OXIDE METAL FILM, 1/2W 1.5 OHM J RA84 24012330 CHIP, METAL FILM, 1/16W 33 OHM J RJ06 24382471 OXIDE METAL FILM, 1W 470 OHM J RA85 24012331 CHIP, METAL FILM, 1/16W 330 OHM J...
  • Page 33 Location Location Parts No. Description Parts No. Description RV31 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RX308 24019480 CHIP BLOCK P-8 1/32W P-8 47 J RV32 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RX309 24019480 CHIP BLOCK P-8 1/32W P-8 47 J RV33 24011101 CHIP, METAL FILM, 1/20W 100 OHM J...
  • Page 34 Location Location Parts No. Description Parts No. Description RX582 24011334 CHIP, METAL FILM, 1/20W 330K OHM J RY410 24012271 CHIP, METAL FILM, 1/16W 270 OHM J RX600 24012750 METAL FILM CHIP 1005 1/16W 750 J RY411 24012821 CHIP, METAL FILM, 1/16W 820 OHM J RX601 24011680 CHIP, METAL FILM, 1/20W 68 OHM J...
  • Page 35 Location Location Parts No. Description Parts No. Description L302 23289846 COIL, PEAKING, TRF4101AT LA13 23103828 INDUCTOR, BEAD, TEM2121M L441 23233120 COIL, LIN 20XH40 7A 9MMH TLN2228AH LA14 23103828 INDUCTOR, BEAD, TEM2121M L442 23248302 COIL, CHOKE, TLN3521GH LA15 23103828 INDUCTOR, BEAD, TEM2121M L450 23248305 COIL, CHOKE, TLN3346GH...
  • Page 36 Location Location Parts No. Description Parts No. Description LX909 23103230 INDUCTOR, BEAD, TEM2134AD Q631 23205204 TRANSISTOR, NPN VEBO=25V KTC2875B-RTK LX910 23103230 INDUCTOR, BEAD, TEM2134AD Q632 23205204 TRANSISTOR, NPN VEBO=25V KTC2875B-RTK Q670 23906523 IC, TA8256BH LY001 23103239 INDUCTOR, BEAD TEM2143AD Q671 23205204 TRANSISTOR, NPN VEBO=25V KTC2875B-RTK LY002...
  • Page 37 Location Location Parts No. Description Parts No. Description Q5403 23314289 TRANSISTOR, 2SA1586-Y QX100 23009986 IC, 110MHZ 3CH ADC MST9883C-LF-110 Q5404 23314292 TRANSISTOR, 2SC4116-Y QX106 23009094 IC, BD4728G Q5405 23314289 TRANSISTOR, 2SA1586-Y QX201 23009146 IC, REGULATOR +3.3V 2% R1170H331B-T1 Q5406 23314292 TRANSISTOR, 2SC4116-Y QX300 23085178...
  • Page 38 Location Location Parts No. Description Parts No. Description D372 23118859 DIODE, 1SS133 D843 23118094 DIODE, EU2A D373 23118859 DIODE, 1SS133 D845 23118859 DIODE, 1SS133 D374 23316716 DIODE, ZENER, MTZJ11B D846 23118633 DIODE, ZENER, RD3.0ES B2 D404 23224366 DIODE, FMQ-3GU D847 23118633 DIODE, ZENER, RD3.0ES B2 D406...
  • Page 39 Location Location Parts No. Description Parts No. Description BB07A 23713201 CONNECTOR, PLUG B-B 16P @U903 M461C 23505090 CABLE, FOCUS 23713201 CONNECTOR, PLUG B-B 16P @U905A M461D 23504719 CABLE, SCREEN BB07B 23713202 CONNECTOR, SOCKET B-B 16P @U904 N403 23960136 ADHESIVE, SILICONE, TSE3843-W 23713202 CONNECTOR, SOCKET B-B 16P @U902 N724...
  • Page 40 23945070 POLY COVER, 34G6UXC A705 23531053 PACKING, SHEET K902 23306557 REMOCON HAND UNIT IR, CTV CT-90213 Y101 23566439 OWNERS MANUAL, E/CT CTV O/M 34JH9UH CABINET PARTS A201 23533038 COVER, FRONT COVER 34JH9UH A205 23802275 BOX, SPEAKER RIGHT, 25ZS5 A208 23802203...

  • Page 41: Pc Boards Top & Bottom View

    H-SIGNAL BOARD PD1842D (U902) BOTTOM (FOIL) SIDE - 41 - - 42 -...
  • Page 42 H-SIGNAL BOARD PD1842D (U902) TOP (COMPONENT) SIDE - 43 - - 44 -...
  • Page 43 POW/DEF BOARD PD1883D (U904) BOTTOM (FOIL) SIDE CAUTION LIVE AREA D815 P498 R805 R379 R818 G380 C396 R829 D808 T803 D817 C823 GJ406 23547685 C807 R807 D803 G406 C812 C816 C809 T400 G810 D801 R814 L811 G407 P803A C829 Q801 C818 F802 T4A L/250V...
  • Page 44 CRT-D BOARD PD1882D1 (U901A) BOTTOM (FOIL) SIDE CCP-6400S 23547684 Q904 D905 Q907 L910 R939 R981 R983 R985 R984 C922 C924 C904 C905 R924 R917 Q911 R933Z Q903A Q901A R933 L905 R987 R988 R943 Q903 R912 R901 R932 L903 Q901 R942 R970 R904 R952...
  • Page 45 AV-TERMINAL BOARD PD1846J (U903) BOTTOM (FOIL) SIDE BB03A BB06A P602 P603 BB09A GR800 GRS06 R609 R610 GRS05 BB05A RS23 R603 R603 BB04A RS09 C602 CS11 RS05 RS23 C8352 C8345 RS03 RS01 GRS03 P018B RS07 Q601 GRS01 GRS01 GRS03 CS03 RS03 CS01 R672 Q833A...
  • Page 46 AV-TERMINAL BOARD PD1846J (U903) TOP (COMPONENT) SIDE JP033 JP010 P602 P603 BB05A BB06A BB03A C8345 BB04A C601 C602 PP06 BB09A 3 2 1 CS01 R672 P018B Q833 C678 GND_AUDIO GND_AUDIO D601 27V_AUDIO C836 27V_AUDIO C680 C661 C662 CS02 L836 C603 BB07A C110 PV22B...
  • Page 47 CONTROL BOARD PD1884A1 (U905A) BOTTOM (FOIL) SIDE S801 SA06 SA05 SA04 SA03 SA02 SA01 CC13 CC14 PV03 CC11 CC12 RA76 RA87 RA71 RA72 RA73 P661 Q821 PB01A D821 CAUTION CV50 LIVE AREA P019A RJ07 RJ03 1 2 3 SR83 CJ01 R691 C825 RJ08...

  • Page 48: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752GTM 2SC752 2SA1788 (old) 2SD1763A 2SA562TM 2SC2482 2SC5243 2SC1569 2SA1015 2SC2655 2SC5570 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 ON4409 RN2203 2SD1554 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SC5143 RN1204 2SD2553 RN2204 RN1205 RN1202 RN1201...

  • Page 49: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 34JH9UH WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols " " in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list.
  • Page 50 SCHEMATIC DIAGRAM STRUCTURE: CONNECTION ..............................1/54 HYPER SIGNAL (1/3) [SHEET-1/3] ......2/54 (2/3) [SHEET-2/3] .... 3/54 (3/3) [SHEET-3/3] .... 4/54 REGULATOR .................... 5/54 (1/2) [SHEET-1/2] .... 6/54 (2/2) [SHEET-2/2] .... 7/54 ACTIVE-FILTER ..................8/54 AD-CONVERTER [SHEET-1/2] .... 9/54 [SHEET-2/2] ..
  • Page 51 - 58 -...

  • Page 52: Specifications

    SPECIFICATIONS MODEL 34JH9UH Rated voltage g 220 – 240 V, 50 Hz Power consumption 200 W (at g 220 V, 50 Hz) Dimensions 829mm × 556mm × 689mm (Width × Depth × Height) Mass 75.5 kg Type 34, picture tube Picture tube 86 cm (dia.) overall picture tube...

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