Teac-CT-F6870-S-Service-Manual电路原理图.pdf

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1、 SERVICE MANUAL CTF6870S 68CM CTV APR03 SERVCTF6870 RadioFans.CN 收音机爱 好者资料库 TEAC SERVICE MANUAL 1. Caution2 2. Specification6 3. BOM List 13 4. Alignment Procedure.36 5. Block Diagram42 6. Schematic Diagram43 7. PCB Layout.44 8. Exploded View Diagram Temporary Absence This manual is the latest at th

2、e time of printing, and does not include the modification which may be made after the printing, by the constant improvement of product. CT-F6870S RadioFans.CN 收音机爱 好者资料库 WARNING: TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION: TO REDUCE THE RISK O

3、F ELECTRICAL SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lighting flash with arrowhead symbol, with an equilateral triangle is intended to alert the user to the presence of uninsulated voltage within the products enclosu

4、re that may be of sufficient magnitude to constitute a risk of electric shock to the person. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance

5、. CAUTION: Use of controls, adjustments or procedures other than those specified herein may result in hazardous radiation exposure. CAUTION RISK RISK OF OF ELECTRIELECTRIC C SHOCK SHOCK DO DO NOT NOT OPEN.OPEN. 2 dangerous 3 FOR YOUR PERSONAL SAFETY 1.When the power cord or plug is damaged or frayed

6、, unplug this television set from the wall outlet and refer servicing to qualified service personnel. 2.Do not overload wall outlets and extension cords as this can result in fire or electric shock. 3.Do not allow anything to rest on or roll over the power cord, and do not place the TV where power c

7、ord is subject to traffic or abuse. This may result in a shock or fire hazard. 4.Do not attempt to service this television set yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel. 5.Never push objects of any

8、kind into this television set through cabinet slots as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the television set. 6.If the television set has been dropped or the cabinet has been damaged, unplug this

9、 television set from the wall outlet and refer servicing to qualified service personnel. 7.If liquid has been spilled into the television set, unplug this television set from the wall outlet and refer servicing to qualified service personnel. 8.Do not subject your television set to impact of any kin

10、d. Be particularly careful not to damage the picture tube surface. 9.Unplug this television set from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning. 10.1. Do not place this television set on an unstable cart, stand, or table. The televi

11、sion set may fall, causing serious injury to a child or an adult, and serious damage to the appliance. Use only with a cart or stand recommended by the manufacturer, or sold with the television set. Wall or shelf mounting should follow the manufacturer s instructions, and should use a mounting kit a

12、pproved by the manufacturer. 10.2. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn. CAUTION: Read all of these instructions. Save these instructions for later use. Follow all Warni

13、ngs and Instructions marked on the audio equipment. 1. Read Instructions- All the safety and operating instructions should be read before the product is operated. 2. Retain Instructions- The safety and operating instructions should be retained for future reference. 3. Heed Warnings- All warnings on

14、the product and in the operating instructions should be adhered to. 4. Follow Instructions- All operating and use instructions should be followed. IMPORTANT SAFETY INSTRUCTIONS 4 PROTECTION AND LOCATION OF YOUR SET 11.Do not use this television set near water . for example, near a bathtub, washbowl,

15、 kitchen sink, or laundry tub, in a wet basement, or near a swimming pool, etc. Never expose the set to rain or water. If the set has been exposed to rain or water, unplug the set from the wall outlet and refer servicing to qualified service personnel. 12. Choose a place where light (artificial or s

16、unlight) does not shine directly on the screen. 13. Avoid dusty places, since piling up of dust inside TV chassis may cause failure of the set when high humidity persists. 14. The set has slots, or openings in the cabinet for ventilation purposes, to provide reliable operation of the receiver, to pr

17、otect it from overheating. These openings must not be blocked or covered. Never cover the slots or openings with cloth or other material. Never block the bottom ventilation slots of the set by placing it on a bed, sofa, rug, etc. Never place the set near or over a radiator or heat register. Never pl

18、ace the set in enclosure, unless proper ventilation is provided. PROTECTION AND LOCATION OF YOUR SET 15.1. If an outside antenna is connected to the television set, be sure the antenna system is grounded so as to provide some protection against voltage surges and built up static charges, Section 810

19、 of the National Electrical Code, NFPA No. 70-1975, provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electr

20、ode, and requirements for the grounding electrode. 15.2. Note to CATV system installer : (Only for the television set with CATV reception) This reminder is provided to call the CATV system attention to Article 820-40 of the NEC that provides guidelines for proper grounding and, in particular, specif

21、ies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical. 16.An outside antenna system should not be located in the vicinity of overhead power lines or other electric lights or power circuits, or where it can fall into su

22、ch power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal. 17.For added protection for this television set during a lightning storm, or when it is left unattended and unus

23、ed for long periods of time, unplug it from the wall outlet and disconnect the antenna. This will prevent damage due to lightning and power-line surges. ANTENNA LEAD-IN WIRE ANTENNA DISCHARGE UNIT (NEC SECTION 810-20) GROUNDING CONDUCTORS (NECSECTION810-21) GROUND CLAMPS POWER SERVICE GROUNDING ELEC

24、TRODE SYSTEM (NEC ART 250. PART H) ELECTRIC SERVICE EQUIPMENT GROUND CLAMP NEC-NATIONAL ELECTRICAL CODE EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS a built-in installer s OPERATION OF YOUR SET 18.This televisi

25、on set should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply at your home, consult your television dealer or local power company. For television sets designed to operate from battery power, refer to the operating instruc

26、tions. 19.If the television set does not operate normally by following the operating instructions, unplug this television set from the wall outlet and refer servicing to qualified service personnel. Adjust only those controls that are covered in the operating instructions as improper adjustment of o

27、ther controls may result in damage and will often require extensive work by a qualified technician to restore the television set to normal operation. 20.When going on a holiday : If your television set is to remain unused for a period of time, for instance, when you go on a holiday, turn the televis

28、ion set and unplug the television set from the wall outlet. IF THE SET DOES NOT OPERATE PROPERLY 21.If you are unable to restore normal operation by following the detailed procedure in your operating instructions, do not attempt any further adjustment. Unplug the set and call your dealer or service

29、technician. 22.Whenever the television set is damaged or fails, or a distinct change in performance indicates a need for service, unplug the set and have it checked by a professional service technician. 23.It is normal for some TV sets to make occasional snapping or popping sounds, particularly when

30、 being turned on or off. If the snapping or popping is continuous or frequent, unplug the set and consult your dealer or service technician. FOR SERVICE AND MODIFICATION 24.Do not use attachments not recommended by the television set manufacturer as they may cause hazards. 25.When replacement parts

31、are required, be sure the service technician has used replacement parts specified by the manufacturer that have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards. 26.Upon completion of any service or repairs to the televisi

32、on set, ask the service technician to perform routine safety checks to determine that the television is in safe operating condition. 5 off 6 PRODUCT SPECIFICATION MODEL： CT-F6870S AMBIENT CONDITIONS： AMBIENT TEMPERATURE： OPERATING ：-10 C +40 C STORAGE ：-15 C +45 C HUMIDITY OPERATING：80% STORAGE: 90%

33、 AIR PRESSURE: 86kpa 106kpa PREPARED BY : DATE: APPROVED BY: DATE: 7 A: GENERAL SPECIFICATION : 1: CRT 14” 20” 21” 25” X X 29” 34” OTHER 2: CHASSIS: DIGITAL NICAM STEREO X X ANALOG SURROUND SOUND TELETEXT X X GERMAN STEREO X X S.VHS X X OTHER COMB-F ,VM, INTERNAL WOOFER BOX 3: CPU: TSB M5C01 TSB M5C

34、03 TSB M5ENG TSB M6/M6A TSB M7/M7A TSB M8A TSB M8B TSB CTS-654A TSB M2A SS M4F PHIL.CTV 222S MIT.(2911) SIE SDA 5352 X X 其他(OTHERS) M13 4: TV BROADCASTING SYSTEM AND COUNTRY PAL-I X X PAL-BG PAL-DK PAL-DK.1 PAL-DK.BG SECAM-BG SECAM-L SECAM-DK.BG PAL-N NTSC-M X X NTSC3.579/4.43 AV MODE 21 MULTI SYSTE

35、M UK HK GERMAN RUSSIA CHINA USA E.EUROPE VIETNAM CANADA DUBAI INDONESIA S.AFRICA MALAYSIA MID. AMERICA SINGAPORE ISRAEL X X AUSTRALIA & NEW ZEALAND TAIWAN MOROCCO PHILIPPINES OTHER 5： RECEIVING CHANNELS CH21-CH69 CH2-CH12（CCIR） CHFA-CHS20（FRANCE BAND） CH2-CHS41（HYPER BAND） CH21-CH69 CH21-CH69 CH2-CH

36、S20（CABLE BAND） CH2-CH13（USA BAND） 8 CH21-CH69 CH14-CH83 CHR1-CHR12（OIRT） CH1-CH12/CH13-CH57（CHINA BAND） X X OTHER CATV 470MHz 6： SCANNING LINES AND FREQUENCIES 625 LINES 15.625kHz 50Hz 525 LINES 15.75kHz 60Hz X X 525/625 LINES 15.625kHz /15.75kHz 50/60Hz 7： COLOUR SUB-CARRIER X X 4.433MHz X X 3.579

37、MHz 3.58MHz 8： INTERMEDIATE FREQUENCIES PICTURE 39.5MHz SOUND 6.0MHz X X PICTURE 38.9MHz X X SOUND5.5MHz PICTURE 38.0MHz SOUND 6.5MHz PICTURE 45.75MHz SOUND 4.5MHz OTHER AM SOUND 6.5MHz 9： POWER CONSUMPTION ： 65W 70W 75W 80W 110W 120W X X 130W 140W 180W 190W OTHER 10： POWER SOURCE ： AC 120V 60Hz10 A

38、C 200V 50Hz10 AC 220V 50Hz10 AC 220V 50Hz+1025 X X AC 240V 50Hz10 AC 110V-240V 50/60Hz10 OTHER 11： AUDIO OUTPUT POWER (7THD) 9 13”& 14”-1W 20”& 21”-2W 20”& 21”-2W + 2W (R + L) 25”-4W + 4W (R + L) X X 29” =6W + 6W (R + L) 34”-8W + 8W(R + L) OTHER 12： AERIAL INPUT IMPEDANCE X X 75 UNBALANCED DIN JACK

39、ANT.INPUT75 75 UNBALANCED F TYPE ANT.INPUT FOR NTSC 300 BALANCED（TWO TERMINALS ANT.INPUT） OTHER 13： PRODUCT SAFETY REQUIREMENT BS APPROVAL VDE APPROVAL UL APPROVAL CHINA APPROVAL X X CB APPORVAL X X OTHER SAA EMC 14： PRODUCT EMC/EMI REQUIREMENT FTZ APPOVAL FCC APPROVAL X X CHINA APPOVAL OTHER B： BAS

40、IC FEATURES OF CONTROLLER 1： CHANNEL TUNING METHOD X X VOLTAGE SYNTHESIZER (V.S.) 10 PLL FREQUENCY SYNTHESIZER (F.S.) 2： PRESETTABLE PROGRAM 50 PROGRAMS 0-99 PROGRAMS X X 100 PROGRAMS 181 PROGRAMS OTHER 3： TUNING FOR VHF AND UHF BANDS X X AUTO SEARCH） X X MANUAL TUNING） X X FINE TUNING 4： PICTURE AN

41、D SOUND ADJUSTMENT X X BRIGHT，CONTRAST，COLOUR AND VOLUME CONTROL X X TINT CONTROL(NTSC) TREBLE，BASS，BALANCE CONTROL X X SHARPNESS CONTROL X 4D FAULT SOUND STETTING, FIVE-BAND EQUALIZER 5： TELETEXT SIMPLE TEXT TOP(TABLE OF PAGES) FLOF (FASTEXT) LIST 6： ON SCREEN DISPLAY X X GENERAL FEATURES STEREO DU

42、AL LAN. FOUR S.EFFECT INDICATOR GERMAN STEREO INDICATOR 注： REMARK：OSD-GENERAL FEATURES OF CPU： VOLUME，BRIGHTNESS，CONTRAST，COLOUR，PROGRAM，BAND， AUTO SEARCH，MANUAL，TUNE，MUTING，AV AND SLEEP TIMER 7： SLEEP TIMER X X 10-120 MINUTES WITH 10M.INCREMENT 8：AUTO OFF WHEN NO BROADCASTING SIGNAL 10 min X X 15 m

43、in 20 min 11 9： FULL FUNCTION INFRARED REMOTE CONTROL P/N OF REMOTE CONTROL INLAY) : 58-HS46F2-MUI 10： REMOTE EFFECTIVE DISTANCE 8 m C： CONSTRUCTION OF FRONT PANEL X X MAIN POWER SWITCH FUNCTION SELECT X X REMOTE SENSOR X X MENU SELECT SYSTEM FUNCTION S.VHS INPUT MICROPHONE INPUT X X TV/AV SELECT X

44、X STANDBY INDICATOR X X PROGRAM VOLUME UP/DOMN BAND SELECT X X RCA SOCKET (SIDE) EARPHONE INPUT OTHER AUTO SEARCH AND MANUAL TUNING SELECT D： CONSTRUCTION OF REAR PANEL X X 75 AERIAL TERMINAL 300 AERIAL TERMINAL RCA SOCKET(AV INPUT ONLY RCA SOCKET-AV IN/OUT X X RCA SOCKET -A-R+L IN/OUT，V- IN/OUT RCA

45、 SOCKET -A-R+L /V INPUT X 2， SCART SOCKET X X S.VHS INPUT EXT/INT SPEAKER SELECT EXT.SPEAKERS（R+L）TERMINALS EXT.SPEAKERS（R+L）RCA SOCKET SUPER WOOFER TERMINAL X X OTHER YUV E： AUDIO AND VIDEO INPUT/OUTPUT 12 X X RCA SOCKET SCART SOCKET(AV) S SCART SOCKET(FULL) SPECIFICATIONSCARTRCA VIDEO INPUT 75 S1V

46、P-P1VP-P AUDIO INPUT 10k (R+L)0.5VrmS0.5VrmS VIDEO OUTPUT 751VP-P1VP-P AUDIO OUTPUT 1k (R+L)0.5VrmS0.5VrmS RGB INTPUT 750.7VP-P AUDIO LINE OUTPUT 1k1VP-P F： OTHERS INFORMATION 1. FLYBACK ： 37-BS2901-58BOX 2. TUNER ： 07-389VI5-NX4 3. SAW FILTER ： 45-SAWK33-50K 4. POWER CORD ： 5. FUSE ： 6. COLOUR TEMP ：