TEAC CTF-6870-S Service manual

SERVICE MANUAL

CTF6870S

68CM CTV

APR03 SERVCTF6870

TEAC

SERVICE MANUAL

CT-F6870S

1. Caution……………………………………………………………2

2. Specification………………………………………………………6

3. BOM List …………………………………………………………13

4. Alignment Procedure………………………………………….…36

5. Block Diagram……………………………………………………42

6. Schematic Diagram………………………………………………43

7. PCB Layout………….……………………………………………44

8. Exploded View Diagram ……………………Temporary Absence

This manual is the latest at the time of printing, and does not include the modifi ca tio n w hich ma y b e made after the pri nti ng, by the consta nt improvement of product.

CAUTION:

Use of controls, adjustments or procedures other than those specified herein may result in hazardous radiation exposure.

CAUTION: TO REDUCE THE RISK OF

CAUTION

RISK RISK OF OF ELECTRIELECTRICC

SHOCK SHOCK DO DO NOT NOT OPEN.OPEN.

The lighting flash with arrowhead symbol, with an equilateral triangle is intended to alert the user to the presence of uninsulated voltage within the product s enclosure 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.

ELECTRICAL SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

dangerous

WARNING: TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT

EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION:

Read all of these instructions. Save these instructions for later use. Follo w all Warnings 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 the product and in the operating instructions should be adhered to.

4. Follow Instructions- All operating and use instructions should be followed.

FOR YOUR PERSONAL SAFETY

1. When the power cord or plug is damaged or frayed, 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 cord 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 kind into this television set through cabinet slots as they may touch dangerous voltage points or short out par ts 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 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 kind. 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 television set may fall, causing serious injury to a child or an adult, and serious damage to the appliance. Use only with a car t 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 approved 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.

PROTECTION AND LOCATION OF YOUR SET

11. Do not use this television set near water ... for example, near a bathtub, washbowl, 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 sunlight) 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 protect 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 place the set in enclosure, unless proper ventilation is provided.

a built-in

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 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 electrode, and requirements for the grounding electrode.

EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS

EXAMPLE OF ANTENNA GROUNDING AS PER

NATIONALELECTRICAL CODE

ANTENNA LEAD- INWIRE

GROUND CLAMP

ELECTRIC SERVICE

EQUIPMENT

NEC-NATIONALELECTRICAL CODE

ANTENNA DISCHARGE UNIT (NEC SECTION 810-20)

GROUNDING CONDUCTORS (NECSECTION 810-21)

GROUND CLAMPS

POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250. PARTH)

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

installer s guidelines for proper grounding and, in particular, specifies 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 such 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 unused 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.

OPERATION OF YOUR SET

18.

This television 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 instructions.

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 other 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 television set and unplug the television set from the wall outlet.

off

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 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 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 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 television set, ask the service technician to perform routine safety checks to determine that the television is in safe operating condition.

PRODUCT SPECIFICATION

MODEL：：：： CT-F6870S

AMBIENT CONDITIONS：

AMBIENT TEMPERATURE：

OPERATING ：：：：-10°°°°C ~ +40°°°°C

STORAGE ：：：：-15°°°°C ~ +45°°°°C

HUMIDITY

OPERATING：＜

STORAGE: ＜＜＜＜90%

AIR PRESSURE: 86kpa ~ 106kpa

PREPARED BY : DATE:

：

：：

：

：：

：＜80%

：＜：＜

APPROVED BY: DATE:

A: GENERAL SPECIFICATION : 1: CRT 14” 20” 21” 25” XX

29” 34” OTHER

2: CHASSIS: DIGITAL

SURROUND SOUND TELETEXT XX

S.VHS

NICAM STEREO XX

ANALOG

GERMAN STEREO

OTHER COMB-F ,VM, INTERNAL WOOFER BOX

3: CPU:

TSB M5C01 TSB M5C03 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 XX

其他(OTHERS) M13

4: TV BROADCASTING SYSTEM AND COUNTRY

PAL-I XX PAL-DK.BG SECAM-BG SECAM-L SECAM-DK.BG

PAL-N NTSC-M XX

PAL-BG PAL-DK PAL-DK.1

NTSC3.579/4.43 AV MODE 21 MULTI SYSTEM

UK HK GERMAN RUSSIA

CHINA USA E.EUROPE VIETNAM

CANADA DUBAI INDONESIA S.AFRICA

MALAYSIA MID. AMERICA SINGAPORE

AUSTRALIA & NEW ZEALAND TAIWAN MOROCCO

PHILIPPINES

OTHER

ISRAEL

5： RECEIVING CHANNELS

CH21--CH69 CH2--CH12（CCIR）

CHFA-CHS20（FRANCE BAND） CH2--CHS41（HYPER BAND） CH21--CH69 CH21--CH69 CH2--CHS20（CABLE BAND） CH2--CH13（USA BAND）

CH21--CH69 CH14--CH83 CHR1--CHR12（OIRT） CH1--CH12/CH13-CH57（CHINA BAND）

OTHER CATV 470MHz

6： SCANNING LINES AND FREQUENCIES 625 LINES 15.625kHz 50Hz

525 LINES 15.75kHz 60Hz XX

525/625 LINES 15.625kHz /15.75kHz 50/60Hz

7： COLOUR SUB-CARRIER

4.433MHz

3.579MHz

3.58MHz

8： INTERMEDIATE FREQUENCIES PICTURE 39.5MHz

PICTURE 38.9MHz XX

PICTURE 38.0MHz

SOUND 6.0MHz SOUND5.5MHz

SOUND 6.5MHz PICTURE 45.75MHz SOUND 4.5MHz OTHER AM SOUND 6.5MHz 9： POWER CONSUMPTION ：

65W 70W 75W 80W 110W 120W

130W 140W 180W 190W OTHER

10： POWER SOURCE ： AC 120V 60Hz±10％ AC 200V 50Hz±10％ AC 220V 50Hz±10％

AC 220V 50Hz+10％~25％

AC 240V 50Hz±10％

AC 110V-240V 50/60Hz±10％

OTHER

11： AUDIO OUTPUT POWER (7％THD)

13”& 14”---1W

20”& 21”---2W

20”& 21”---2W + 2W (R + L)

25”---4W + 4W (R + L)

29” >=6W + 6W (R + L)

34”---8W + 8W(R + L) OTHER 12： AERIAL INPUT IMPEDANCE

75 Ω UNBALANCED DIN JACK ANT.INPUT75 75Ω UNBALANCED F TYPE ANT.INPUT FOR NTSC 300 Ω BALANCED（TWO TERMINALS ANT.INPUT） OTHER 13： PRODUCT SAFETY REQUIREMENT BS APPROVAL

VDE APPROVAL UL APPROVAL

CHINA APPROVAL XX

CB APPORVAL XX

OTHER SAA EMC

14： PRODUCT EMC/EMI REQUIREMENT

FTZ APPOVAL FCC APPROVAL XX

CHINA APPOVAL OTHER B： BASIC FEATURES OF CONTROLLER

1： CHANNEL TUNING METHOD

VOLTAGE SYNTHESIZER (V.S.)

PLL FREQUENCY SYNTHESIZER (F.S.) 2： PRESETTABLE PROGRAM 50 PROGRAMS XX

100 PROGRAMS 181 PROGRAMS

0-99 PROGRAMS

OTHER 3： TUNING FOR VHF AND UHF BANDS

AUTO SEARCH） XX

FINE TUNING

MANUAL TUNING）

4： PICTURE AND SOUND ADJUSTMENT

BRIGHT，CONTRAST，COLOUR AND VOLUME CONTROL

TINT CONTROL(NTSC)

TREBLE，BASS，BALANCE CONTROL

SHARPNESS CONTROL

4D FAULT SOUND STETTING, FIVE-BAND EQUALIZER

5： TELETEXT SIMPLE TEXT TOP(TABLE OF PAGES)

FLOF (FASTEXT) LIST 6： ON SCREEN DISPLAY XX

GENERAL FEATURES∗ STEREO DUAL 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

10-120 MINUTES WITH 10M.INCREMENT

8：AUTO OFF WHEN NO BROADCASTING SIGNAL

10 min XX

15 min 20 min

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

MAIN POWER SWITCH FUNCTION SELECT

REMOTE SENSOR XX

MENU SELECT SYSTEM FUNCTION S.VHS INPUT MICROPHONE INPUT XX XX

STANDBY INDICATOR XX

BAND SELECT XX

TV/AV SELECT

PROGRAM VOLUME UP/DOMN

RCA SOCKET (SIDE)

EARPHONE INPUT OTHER AUTO SEARCH AND MANUAL TUNING SELECT D： CONSTRUCTION OF REAR PANEL

75Ω AERIAL TERMINAL

300Ω AERIAL TERMINAL RCA SOCKET(AV INPUT ONLY RCA SOCKET--AV IN/OUT

RCA SOCKET --A-R+L IN/OUT，V- IN/OUT

RCA SOCKET --A-R+L /V INPUT X 2，

SCART SOCKET

S.VHS INPUT EXT/INT SPEAKER SELECT EXT.SPEAKERS（R+L）TERMINALS

EXT.SPEAKERS（R+L）RCA SOCKET SUPER WOOFER TERMINAL

OTHER YUV

E： AUDIO AND VIDEO INPUT/OUTPUT

RCA SOCKET

SCART SOCKET(AV) S SCART SOCKET(FULL)

SPECIFICATION SCART RCA VIDEO INPUT 75Ω S AUDIO INPUT 10kΩ (R+L) VIDEO OUTPUT 75Ω AUDIO OUTPUT 1kΩ (R+L) RGB INTPUT 75Ω AUDIO LINE OUTPUT 1kΩ

F： OTHERS INFORMATION

1. FLYBACK ： 37-BS2901-58BOX

2. TUNER ： 07-389VI5-NX4

3. SAW FILTER ： 45-SAWK33-50K

P-P

0.5V

P-P

0.5V

0.7V

P-P

rmS

P-P

0.5V

P-P

0.5V

rmS

4. POWER CORD ：

5. FUSE ：

6. COLOUR TEMP ：

7. MAGNETIC FIELD ：

8. IC EEPROM ： 13-00M24C-08P

9. IR RECEIVER ： 11-IRR001-1X0

10. CIRCUIT DIAGRAM ： 01-29704T-MA5

11. MAIN BOARD ： 40-2916MT-MAH

Sheet1

03-29704T-AA5 Effective Date : 2002-7-23 Parent Item Parent Item Description Item No. Item Description

Item

Quantity

Type

Requirement Designator

C102, C211, C212, C213, C242,

08-29704T-MAN ASS'Y - MAIN BD 08-29704T-MAN ASS'Y - MAIN BD 27-PBC222-J0X CAP. P.E. 2200 PF 50V +/-5% C 2 C207, C221 08-29704T-MAN ASS'Y - MAIN BD 27-PBC223-J0X CAP. P.E. 0.022UF 50V +/-5% C 2 C611, C612 08-29704T-MAN ASS'Y - MAIN BD 27-PBC273-J0X CAP. P.E 0.027UF 50V +/-5% C 2 C653, C659 08-29704T-MAN ASS'Y - MAIN BD 27-PBC333-J0X CAP. P.E 0.033UF 50V +/-5% C 1 C302 08-29704T-MAN ASS'Y - MAIN BD 27-PBC393-J0X CAP. P.E 0.039UF 50V +/-5% C 1 C308 08-29704T-MAN ASS'Y - MAIN BD 27-PBC472-J0X CAP. P.E. 4700PF 50V +/-5% C 1 C244 08-29704T-MAN ASS'Y - MAIN BD 27-PBC563-J0X CAP. P.E 0.056 UF 50V +/-5% C 1 C304 08-29704T-MAN ASS'Y - MAIN BD 27-PBC822-J0X CAP. P.E. 8200 PF 50V +/-5% C 2 C652, C656 08-29704T-MAN ASS'Y - MAIN BD 27-RHQ563-J0X CAP. PP 0.056 UF 400V +/-5% C 1 C451 08-29704T-MAN ASS'Y - MAIN BD 34-R120J2-0EX COIL PL - 12 UH +/-5% C 1 L256 08-29704T-MAN ASS'Y - MAIN BD 13-TCLM13-V1P IC TCLM13V1 3CD4 (CPU) H 1 IC001 08-29704T-MAN ASS'Y - MAIN BD 18-CD0392-JNX RES. C.F. 3.9K OHM 1/4W +/-5% C 2 R312, R725 08-29704T-MAN ASS'Y - MAIN BD 18-CE0229-JNX RES. C.F. 2.2 OHM 1/2W +/-5% C 1 R305 08-29704T-MAN ASS'Y - MAIN BD 18-FG0479-JHX RES. M.O. 4.7 OHM 2W +/-5% C 1 R303 08-29704T-MAN ASS'Y - MAIN BD 27-RHQ223-J0X CAP. PP 0.022 UF 400V +/-5% C 1 C416 08-29704T-MAN ASS'Y - MAIN BD 36-WID601-XX1 COIL CHOKE 600 UH C 1 L414 08-29704T-MAN ASS'Y - MAIN BD 70-271510-00A SERVICE CARD C 1 FOR PRODUCTION USE 08-29704T-MAN ASS'Y - MAIN BD 62-2970TB-0UN TERMINAL BD BRACKE 08-29704T-MAN ASS'Y - MAIN BD 27-ALQ272-J0X CAP. M.PP 0.0027UF 1.6KV +/-5% C 1 C413 08-29704T-MAN ASS'Y - MAIN BD 27-ALQ432-J0X CAP. M.PP 4300 PF 1.6KV +/-5% C 1 C414 08-29704T-MAN ASS'Y - MAIN BD 27-ALR822-J0X CAP. M.PP 8200 PF 1.6KV +/-5% C 1 C415 08-29704T-MAN ASS'Y - MAIN BD 36-LIN240-XX1 COIL LINEARITY 24 UH C 1 L413 08-29704T-MAN ASS'Y - MAIN BD 18-GM0302-KT 08-29704T-MAN ASS'Y - MAIN BD 37-SC2901-58B0X FLYBACK BSC29-0158B C 1 T461 08-29704T-MAN ASS'Y - MAIN BD 18-CD0681-JNX RES. C.F. 680 OHM 1/4W +/-5% C 1 R724 08-29704T-MAN ASS'Y - MAIN BD 27-PBC103-J0X CAP. P.E. 0.01UF 50V +/-5% C 1 C052 08-29704T-MAN ASS'Y - MAIN BD 18-CB0622-JNX RES. C.F. 6.2K OHM 1/6W +/-5% C 1 R231 08-29704T-MAN ASS'Y - MAIN BD 18-CB0393-JNX RES. C.F. 39K OHM 1/6W +/-5% C 1 R314 08-29704T-MAN ASS'Y - MAIN BD 27-AGQ514-JSX CAP. M.PP 0.51 UF 250V +/-5% C 1 C418 08-29704T-MAN ASS'Y - MAIN BD 62-2970MB-0UN MAIN BD BRACKE 08-29704T-MAN ASS'Y - MAIN BD 63-W30100-AB4 S/T SCREW W 3 X 10 AB C 2 MTG TERM. BKT & M.BD BK 08-29704T-MAN ASS'Y - MAIN BD 18-FG0100-JHX RES. M.O. 10 OHM 2W +/-5% C 1 J211 08-29704T-MAN ASS'Y - MAIN BD 27-MBC473-J0X CAP. M.P.E. 0.047 UF 50V +/-5% C 2 C603, C604 08-29704T-MAN ASS'Y - MAIN BD 46-32282H-02X HS 2P22 300 F/W SCN2Y/SM2R WH C 1 P621A FOR REAR CAB. 08-29704T-MAN ASS'Y - MAIN BD 18-CB0133-JNX RES. C.F. 13K OHM 1/6W +/-5% C 1 R452 08-29704T-MAN ASS'Y - MAIN BD 18-CD0182-JNX RES. C.F. 1.8K OHM 1/4W +/-5% C 1 R313 08-29704T-MAN ASS'Y - MAIN BD 18-EG0689-JHX RES. FUSE 6.8 OHM 2W +/-5% C 1 R461

27-MBC104-J0X CAP. M.P.E.0.1 UF 50V +/-5% C 6

RES. CEMENT 3K OHM 7W +/-10% C 1 R404

C252

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