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. The only source of X-RAY RADIATION in this TV receiver ous X-RAY RADIATION.
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. (see sketch) used on CRT assembly, are “NOT”...
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. Remove CRT Assembly from CRT Mounting. Anode Cap CRT REPLACEMENT (Same procedure for R, G, B) Reverse the removal procedures except the followings.
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. Call-up the adjustment mode (see page 10) User convergence center check Cutoff 2.
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;...
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.
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.
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.
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 33) 5.
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...
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) (Adjustment mode) When QA02 is initialized, items “OPT0” and “OPT1” of DESIGN MODE are set to the data of the representative model of this chassis family.
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. 3. Press the CHANNEL s or t button to select the item WID and press the VOLUME s or t button to get the pictuer so the left and right edges of rester begin to lack.
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.
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.
1-3. Adjusting Screen 1) Adjusting menu Description Item 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.
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. Select this mode for Cinema screen color matching and distortion adjustment.
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.
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 52.5 52.5 157.5 227.5 262.5 3-4 Subtitle (PAL mode)
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 –...
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.
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.
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. Turn on the receiver. Set the BRIGHTNESS and CONTRAST to minimum (zero beam current). 3.
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 –...
LOCATION OF CONTROLS Front MAIN SWITCH HEAD PHONE (VIDEO-3) S-VIDEO TERMINAL POWER (RED) VIDEO-3 ON TIMER (GREEN) 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 EXTERNAL SPEAKER...
ENTER ENTER MENU EXIT MENU Buttons EXIT • Stereo/Bilingual • Sound Mute V T R / D VD Volume Video Recoder/DVD Buttons to operate your Toshiba Video Recorder & DVD V T R / D V D – 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.
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 C614...
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 C705 24206479...
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 Screen size...