FILE NO. 020-200028 SERVICE MANUAL COLOR TELEVISION N0PS Chassis 36HFX70, 36HF70 (TAC0030) (TAC0031) TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN PUBLISHED IN JAPAN. Sep.
GENERAL ADJUSTMENTS TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ........................................................................................................................................ 3 SET-UP ADJUSTMENT ............................................................................................................................................ 4 SERVICE MODE ..............................................................................................................
SAFETY INSTRUCTIONS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAUTION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid such hazards, the high voltage must not be above the specified limit. The nominal value of the high voltage of this receiver is (A) kV at zero beam current (minimum brightness) under a 120V AC power source.
GENERAL ADJUSTMENTS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAUTION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS 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. Color Purity 2. Convergence 3. White Balance Note: 1. The PURITY/CONVERGENCE MAGNET assembly and rubber wedges need mechanical positioning.
4-POLE MAGNETS 6-POLE MAGNETS ■ CENTER CONVERGENCE ADJUSTMENT 1. Display built-in cross-dot pattern using the TEST SIGNAL SELECTION function. 2. Adjust the BRIGHTNESS and CONTRAST Controls for well defined pattern. 3. Loosen the tightening ring and adjust two tabs of the 4-Pole Magnets to change the angle between them (See figure 4.) and superimpose red and blue vertical lines in the center area of the picture screen. (See figure 3.) 4.
GENERAL ADJUSTMENTS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAUTION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF SERVICE MANUAL. (SET-UP ADJUSTMENT FOR FLAT TUBE) ■ 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. Color Purity 2. Convergence 3.
Xv bow-shaped deviation of convergence red/blue blue red/blue blue red blue green red red green Main 4-pole magnet 6-pole magnet Sub-4-pole magnet ■ CIRCUMFERENCE CONVERGENCE: * Perform correction in the following manner.
GENERAL ADJUSTMENTS SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press MUTE button once on Remote Control. 2) Press MUTE button again to keep pressing. 3) While pressing the MUTE button, press MENU button on TV set. S MUTE (Service mode display) 2. DISPLAYING THE ADJUSTMENT MENU 1) Press MENU button on TV. Service mode Adjustment mode Item S Press Data Press 3. KEY FUNCTION IN THE SERVICE MODE The following key entry during display of adjustment menu provides special functions.
Refer to table-2 for preset data of adjustment mode. (See SETTING & ADJUSTING DATA on page 14) 5. ADJUSTING THE DATA 1) Pressing of VOLUME s or t button will cahnge the value of data in the range from 00H to FFH. The variable range depends on the adjusting item. 6. EXIT FROM SERVICE MODE 1) Pressing POWER button to turn off the TV once. ■ INITIALIZATION OF MEMORY DATA OF QA02 AND QA04 After replacing QA02 and QA04, the following initialization is required. 1.
GENERAL ADJUSTMENTS 8. SELF DIAGNOSTIC FUNCTION 1) Press “9” button on Remote Control during display of adjustment menu in the service mode. The diagnosis will begin to check if interface among IC’s are executed properly. 2) During diagnosis, the following displays are shown. SELF CHECK NO. 23 * * * * * * POWER : 000 BUS LINE : OK BUS CONT : OK BLOCK : UV V1 V2 or QV01 QV01S SYNC Part number of microprocessor (QA01) Operation number of protection circuit (current limiter) . . . .
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 appears on the screen. 3. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture screen. SUB-BRIGHTNESS (BRTC) 1. Constrict the picture height until the vertical retrace line appears adjusting the item HIT (HEIGHT). 2. Adjust the CONTRAST control to the minimum. 3.
GENERAL ADJUSTMENTS ITEM ADJUSTMENT PROCEDURE E-W PARABOLA (DPC) (PARA) 1. Call up the adjustment mode display, then select the item PARA. 2. Press the TV/VIDEO button on Remote until the cross-hatch pattern appears on the screen. 3. Press the VOLUME s or t button to make vertical lines straight as shown below. HORIZONTAL POSITION (HPOS) VERTICAL POSITION (VPOS) 1. Call up the adjustment mode display, then select the item HPOS or VPOS. 2.
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. High voltage must be measured below (B) kV. Troubleshooting Guide for Fail Safe Circuit Refer to table-1 for high voltage (B). (See SETTING & ADJUSTING DATA on page 14) 4.
GENERAL ADJUSTMENTS CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS HIGH VOLTAGE AT ZERO BEAM: MAX HIGH VOLTAGE: (A) (B) 36" 32.7 kV 34.
TV Front MENU Video/Audio inputs (Video 3) CHANNEL ts DEMO VIDEO-3 IN S-VIDEO VOLUME ts MENU TV/VIDEO VOLUME CHANNEL POWER AUDIO VIDEO L/MONO R DEMO POWER ANT/VIDEO Remote sensor TV Rear ANT(75 ANT-1 IN OUT IN S-VIDEO COLOR STREAM HD - 1 VIDEO L/MONO ) ANT-2 OUT COLOR STREAM HD - 2 Y L PB AUDIO PR AUDIO L Y VIDEO VAR AUDIO L/ PB MONO AUDIO CENTER CHANNEL IN AUDIO R VIDEO-1 VIDEO-2 – 15 – R R PR AUDIO L R R ON OFF GENERAL ADJUSTMENTS LOCATION OF CONTROLS
Remote Control GENERAL ADJUSTMENTS Power turns the TV on or off SLEEP sets the TV to turn at a specific time LIGHT The initial press of the LIGHT button causes two actions: Channel Numbers (0–9, 100) allow direct access to channels MODE cycles through the 6 device modes FAVOURITE allows access to Multi-Window function INFO allows access to Multi-Window function MENU allows access to programming ENTER sets programming menu information stT S selects or adjusts programming menus [FAV] T S selects your fav
The channel memory is the list of TV channel numbers your TV will stop on when you press the CHANNEL s or t button. First, use the TV/CABLE and CH PROGRAM functions to preset all active channels in your area automatically. If necessary, arrange the preset channels with the ADD/ERASE functions so that you can tune into only desired channels. Note: If you utilize both ANT-1 and ANT-2 terminals for some model, perform programming channels for each input source.
RF-SW H003 MONIT OUTPUT VIDEO INPUT 1 VIDEO INPUT 2 DVD IN Cr, Cb VIDEO INPUT 3 KEY CONTROL ANT IN QX300 UPCON SIGNAL UNIT QV30 SIG SW QV01 SIGNAL SW VAR AUDIO L R KEY CONTROL QA01 MICROPROCESSOR H001(MAIN) HY01 TIF Q501 VCD QY03 DUAL QA02 MEMORY I2C HYPER UNIT QA03 SUB-MICON I2C QA04 MEMORY R R L L W Q610 AUDIO OUT Q420 SCANPRO. I2C-BUS LINE B A WOOFER +12V SRS QD01 Q510 CHROMA VIDEO DEF.
CHASSIS AND CABINET REPLACEMENT PARTS LIST WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAUTION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. 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.
SPECIFIC INFORMATIONS Location No. C472 C475 C476 C477 C480 C481 C481 C482 C488 * C491 * C492 C497 C499 C501 C502 C503 C504 C505 C506 C507 C508 C509 C510 C511 C512 C513 C513 C514 C515 C520 C524 C525 C526 C527 C528 C529 C530 C531 C532 C533 C534 C535 C536 C537 C540 C541 C542 C546 C547 C560 C561 C562 C563 C564 C565 C566 C567 C573 C574 C612 C621 C622 C623 C624 Part No.
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Location No. Part No. Location No. Description SPECIFIC INFORMATIONS PC BOARD ASSEMBLIES * U801 * U801 * U802 * U803 * U901 * U902 * U902 * UA01 * UA02 * UD01 * UZ01 Power/DEF Board, PB9565A (36HFX70) Power/DEF Board, PB9565B (36HF70) AC IN Board, PB9566 LOW B Board, PB9567 CRT Drive-VM Board, PB9569 Signal Board, PB9568A (36HFX70) Signal Board, PB9568B (36HF70) CONTROL-1 Board, PB9570 CONTROL-2 Board, PB9571A SRS Board, PB9587 HYPER PRO.
SIGNAL/CONV BOARD PB9568 BOTTOM (FOIL) SIDE – 43– – 44 –
POWER/DEF BOARD PB9565 BOTTOM (FOIL) SIDE – 45 – – 46 –
CONTROL-1 BOARD PB9570 BOTTOM (FOIL) SIDE –47 – –48 –
CONTROL-2 BOARD PB9571 BOTTOM (FOIL) SIDE – 49 – – 50 –
HYPER PRO BOARD PB9584 CRT/ VM BOARD PB9569 BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE – 51 – – 52 –
AC IN BOARD PB9566 BOTTOM (FOIL) SIDE SRS PRO BOARD PB9587 LOW B BOARD PB9567 BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE – 53 – – 54 –
TERMINAL VIEW OF TRANSISTORS 2SD2253 (old) 2SC5243 E C 2SC3852 2SD1763A 2SC1569 2SC4544 2SA1788 2SA1306 2SA1186A 2SC752GTM 2SC2482 2SC2655 2SC4721P B C 2SD1554 2SD2253 2SD1556 2SC5143 2SC5570 2SD2553 2SA1788 CB C E ON4409 E E E B BC RN2203 RN2201 RN2004 RN1203 RN1204 RN2204 RN1205 RN1202 RN1201 2SC752 2SA562TM 2SA1015 2SC1815 2SC2878 2SC1740S 2SC2120 2SA9335 E E C B B CB – 55 – BC E SPECIFIC INFORMATIONS
MEMO ........................................................................................................................................ ........................................................................................................................................ ........................................................................................................................................ ...............................................................................................
TELEVISION SYSTEM CHANNEL COVERAGE POWER SOURCE POWER CONSUMPTION AUDIO POWER SPEAKER TYPE VIDEO/AUDIO TERMINALS DIMENSIONS MASS SUPPLIED ACCESORIES NTSC standard VHF: 2 through 13 UHF: 14 through 69 Cable TV: mid band (A-8 through A-1, A through I) super band (J through W) hyper band (AA through ZZ, AAA, BBB) ultra band (65 through 94, 100 through 125) 120V AC, 60Hz 176 W (average) 10W + 10W, 13 W (Sub-woofer) Two 2-3/8 x 4-3/4 inches (60 x 120mm), one 4 inches (10cm) S-VIDEO INPUT Y: 1V(p-p), 75 ohm,
FILE NO. 020-200028 SERVICE MANUAL COLOR TELEVISION N0PS Chassis 36HFX70, 36HF70 (TAC0030) (TAC0031) TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN PUBLISHED IN JAPAN. Sep.
