Page 1
All manuals and user guides at all-guides.com FILE NO. 030-200004 SERVICE MANUAL COLOUR TELEVISION C00P Chassis 40WH08G , 40WH08B PRINTED IN JAPAN Jun., 1999 T...
All manuals and user guides at all-guides.com TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ............................3 CRT ASSEMBLY REPLACEMENT AND MOUNTING ..................... 4 PICTURE TUBE COMPONENTS ADJUSTMENT ....................6 SERVICE POSITION ..............................9 SERVICE MODE ..............................10 DESIGN MODE ..............................13 ELECTRICAL ADJUSTMENT ..........................
All manuals and user guides at all-guides.com 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 hazard- 2.
All manuals and user guides at all-guides.com CRT ASSEMBLY REPLACEMENT AND MOUNTING CAUTION : DO NOT LOOSEN THE HEX HEAD BOLTS WITH SPRINGS (12 PCS), BECAUSE THOSE ARE FOR SEALING OF CRT COOLANT. Attention Serviceman The Hex Head Bolts with Springs.
Page 5
All manuals and user guides at all-guides.com TO REMOVE CRT (Same procedure for R, G, B) 1. Remove CRT DRIVE Board, S. V. M. COIL and DEF. YOKE from CRT. 2. Remove Lens Assembly. 3. Detach CRT Anode Cap from CRT. 4.
All manuals and user guides at all-guides.com WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRE- CAUTION" AND "PRODUCT SAFETY NOTICE" ON PAGE 3 OF THIS MANUAL. PICTURE TUBE COMPONENTS ADJUSTMENT ADJUSTING PROCEDURE IN REPLACING CRT RGB FOCUS ADJUSTMENT 1.
Page 7
All manuals and user guides at all-guides.com Note: The aim of the above-described adjustment procedure Note: Keep in mind that only the BLUE electric focus is ad- for the Green lens focus is to obtain the best lens focus justed with the black cross-hatch. after 2 - 3 hours of warming up taking into account the focus drift;...
Page 8
All manuals and user guides at all-guides.com LOCATION OF SCREEN AND FOCUS VR'S To remove the Speaker grille and Front panel. SCREEN VR FOCUS VR Front panel Speaker grille REPLACEMENT OF HIGH VOLTAGE CABLE 1. When replacing Anode Lead or Anode Cap with new one, remove Lead Holder from old lead as shown in ANODE LEAD figure below, and put it on new lead.
All manuals and user guides at all-guides.com WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAU- TION" AND "PRODUCT SAFETY NOTICE" ON PAGE 3 OF THIS MANUAL. SERVICE POSITION In order to assure the performance, processed wires shall be replaced after the repair work. Work procedures are as follows: Remove the back board.
All manuals and user guides at all-guides.com SERVICE MODE 1. ENTERING TO SERVICE MODE 3) While pressing the o button, 1) Press o button once on 2) Press o button again to Remote Control. keep pressing. press MENU button on TV set. Item Data or Sound Mute...
Page 11
All manuals and user guides at all-guides.com 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 &...
Page 12
SELF DIAGNOSTIC FUCTION for some model. 3) Press "9" button on Remote Control during display of selfcheck display as above, the selfcheck screen for EPG/TEXT unit as shown below is displayed. (This function is only 40WH08G (EPG model). SELFCHECK...
All manuals and user guides at all-guides.com DESIGN MODE 1. ENTERING TO DESIGN MODE 1) Select the Service mode. 2) While pressing CALL button on Remote 3) Press MENU button on TV. and press MENU button on TV. ITEM Press DATA Press (Design mode)
All manuals and user guides at all-guides.com ELECTRICAL ADJUSTMENT ITEM ADJUSTMENT PROCEDURE 1. Select picture size WIDE mode. WIDTH 2. Call up the adjustment mode display, and press the TV/VIDEO (WID) button on the remote untill the white cross dot pattern appears on the screen.
Page 15
All manuals and user guides at all-guides.com – 15 –...
Page 16
All manuals and user guides at all-guides.com – 16 –...
Page 17
All manuals and user guides at all-guides.com – 17 –...
Page 18
All manuals and user guides at all-guides.com – 18 –...
Page 19
All manuals and user guides at all-guides.com – 19 –...
Page 20
All manuals and user guides at all-guides.com – 20 –...
Page 21
All manuals and user guides at all-guides.com – 21 –...
All manuals and user guides at all-guides.com CONVERGENCE ADJUSTMENT 1. Screen Adjustment The four PAL screens Wide/4:3, Super Live, Cinema and Subtitle, and the four NTSC screens Wide/4:3, Super Live, Cinema and Subtitle are adjusted. When adjusting, input an external signal for matching the sync. CAUTION: The convergence circuit eliminates screen distortion but cannot make large corrections such as changing the overall screen size.
Page 23
All manuals and user guides at all-guides.com 1-2. Remote Contr o l Key o key ....Push this key twice and the set con- SIZE sole menu key to enter the service mode . F key ....Push this key and 7 key to enter CALL TEXT the con vergence menu.
Page 24
All manuals and user guides at all-guides.com 1-3. Adjusting Screen 1) Adjusting menu Item Description Adjust PAL Wide Used for manual adjustment of the Wide/4:3 screen in the PAL mode. Returns to the original screen data screen before data conversion, explained below. PAL Wide to others Automatically saves approximate supplementary data for the other PAL screens based on the PAL Wide/4:3 screen data.
Page 25
All manuals and user guides at all-guides.com Item Description Adjust NTSC S.Live Used for manual adjustment of the NTSC Super Live screen. Select this mode for Super Live screen color matching and distortion adjustment. Use the specified dimensions when adjusting. Adjust NTSC Cinema Used for manual adjustment of the NTSC Cinema screen.
Page 26
All manuals and user guides at all-guides.com 2. Case Study In many cases, color matching problems can be solved by returning the HIT and WID data for main deflection to the initial adjustment values. Convergence cannot be re-adjusted in the following cases. 2-1 When the CRT has been replaced Main deflection re-adjustment and color matching are necessary when the CRT has been replaced.
Page 27
All manuals and user guides at all-guides.com 3 Screen adjustment dimensions 3-1 WIDE/4:3 (PAL mode) 207.5 124.5 41.5 (screen center) 41.5 124.5 207.5 3-2 Super Wide (PAL mode) 249.0 220.0 130.5 (pattern center) 49.5 136.5 221.0 249.0 Caution: Do not perform the VLIN adjustment. –...
Page 28
All manuals and user guides at all-guides.com 3-3 Cinema (PAL mode) Note: The cursor will move outside the screen limits in the Cinema mode; therefore, be careful to consider the position of the cursor displayed on the screen when making adjustments. 262.5 227.5 157.5...
Page 29
All manuals and user guides at all-guides.com 3-5 WIDE/4:3 (NTSC mode) (screen center) 3-6 Super Live (NTSC mode) (pattern center) Caution: Do not perform the VLIN adjustment. – 29 –...
Page 30
All manuals and user guides at all-guides.com 3-7 Cinema (NTSC mode) Note: The cursor will move outside the screen limits in the Cinema mode; therefore, be careful to consider the position of the cursor displayed on the screen when making adjustments. Note: Please be aware that the Cinema screen convergence pattern center is located at the center of the screen but the image center is located approximately 13mm above that.
All manuals and user guides at all-guides.com SCREEN AND MIRROR ALIGNMENTS ASSEMBLING AND MOUNTING OF FRONT SCREEN * Please refer to MECHANICAL DISASSEMBLY page 37. CLEANING OF LENS AND MIRROR CAUTION : Do not hold the optical system parts (lens and mirror) with bare hand to avoid finger-prints on the surface of those parts.
All manuals and user guides at all-guides.com CIRCUIT CHECKS 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 anode of the picture tube. 2.
SuperLive Cinema Substitle 14:9 VLIN Table-2-1 DESIGN MODE ADJUSTING ITEMS AND D ATAS IN THE DESIGN MODE: Preset Data of Preset Data of Item Name of adjustment Remarks 40WH08G 40WH08B OPT1 OPTION 1 OPT0 OPTION 0 Table-3 – 33 –...
All manuals and user guides at all-guides.com LOCATION OF CONTROLS Front MAIN SWITCH HEAD PHONE POWER (RED) (VIDEO-3) S-VIDEO TERMINAL ON TIMER (GREEN) VIDEO-3 BILINGUAL (ORANGE) MENU STEREO (GREEN) VOLUME DOWN EXIT VOLUME UP POSITION UP POSITION DOWN Back DIGITAL AUDIO INPUT (COAXIAL) DIGITAL AUDIO INPUT (OPTICAL) EXTERNAL SPEAKER SWITCH...
Page 35
Picture Controls Menu Control Buttons Menu Control Buttons ENTER ENTER MENU EXIT MENU Buttons EXIT • Stereo/Bilingual • Sound Mute VTR / DVD Volume Video Recoder/DVD Buttons to operate your Toshiba Video Recorder & DVD VTR / DVD – 35 –...
: Metal Film OMF : Oxide Metal Film : Variable Resistor : Fusible Resistor (All CD and PF capacitors are ±5%, 50V and all resistors, ±5%, 1/6W unless otherwise noted.) Models :40WH08G, 40WH08B Location Location Part No. Description Part No.
Page 39
All manuals and user guides at all-guides.com Location Location Part No. Description Part No. Description PF, 4700pF, ±3%, 1800V EL, 10?F, ±20%, 50V C426 24082608 C612 24669100 EL, 10?F, ±20%, 50V C430 24232103 CD, 0.01?F, +80%, -20% C613 24669100 EL, 100?F, ±20%, 16V EL, 1000?F, ±20%, 50V C431 24763101...
Page 40
All manuals and user guides at all-guides.com Location Location Part No. Description Part No. Description EL, 4.7?F, ±20%, 50V EL, 47?F, ±20%, 16V C683 24669479 C833 24666470 EL, 10?F, ±20%, 50V C685 24591102 PF, 1000pF C834 24669100 C704 24232103 CD, 0.01?F, +80%, -20% (40WH08B) EL, 4.7?F, ±20%, 50V EL, 47?F, ±20%, 16V...
All manuals and user guides at all-guides.com TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752 2SA1788 2SC752GTM (old) 2SD1763A 2SA562TM 2SC2482 2SC5243 2SC1569 2SC2655 2SA1015 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 RN2203 2SD1554 ON4409 RN2201 2SD2253 RN2004 2SD1556 2SC5143 RN1203...
Page 66
All manuals and user guides at all-guides.com SPECIFICATIONS (Representative : 40WH08G) Rated voltage AC 230 V, 50/60 Hz Power consumption 220 W (Approx.) (at AC 220 V, 50 Hz) Dimensions × × 963.2 mm 1119.7 mm 466 mm (Width × Height × Depth) Mass 51.0 kg...
Page 67
All manuals and user guides at all-guides.com...