TEAC CTF-5151 Service manual

SERVICE MANUAL

CTF5151

51CM CTV

MAR04 SERVCTF5151

TEAC

SERVICE MANUAL

EC-21166

1. Caution……………………………………………………………2

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

3. BOM List ……………………… ……………...............................9

4. Alignment Procedure………………………………………….…29

5. Block Diagram……………………………………………………36

6. Schematic Diagram………………………………………………37

7. PCB Layout………….……………………………………………38

8. Explode Diagram…….……………………………………………39

This manual is the latest at the time of printing, and does not

include the modification which ma

the constant improvement of product.

be made after the printing, b

CAUTION:

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

CAUTION: T O 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 products 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 . Follow 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 shor t 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 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 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 approved by the manufacturer.

10.2. An appliance and car t 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 batter y 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 ser vice technician to perform routine safety checks to determine that the television is in safe operating condition.

PFS2 FORMAT-1 Report

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ProductView......:

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Specs / Products

MasterData Customer Id Version Status Brand EAN UPC Rece

tion +Tunin +Tunin +Tunin +Fre +Channels +IF Fre +TV Systems Off Ai +Add Systems Ext In

+TV S +Sound S Picture - Processin +Scan +Scan Modes +Wide Screen Switchin +Combfilter +Picture Control

+Pict Enhancement +Pict Noise Reduction Picture - Dis +Display T +Screen Format +Size +Deflection S +Tube Technology (CRT onl +CRT Defl +CRT Gun +CRT Ma +Resolution +Coatin +White Point Sound +RMS Power Intern +RMS Power Extern +Surround Sound +Sound Features +Sound Control Sound - S +S +S +S User Interface +Interface Name +Voice Control +Menu +Menu Colours +Menu Lan +Special Features

+O +PP Features +Tuning/Install Features

+Clock/Timer Functions

- presets/channels

- technolo

- Indication

Bands

stems Multi

stems

Visual)" - size/vis. cm

stem (CRT onl

n field

only for D.V. sets

eakers eaker configuration eakers used eaker Size

erational Features

Product:

CT-M5110H

TEAC AUSTRALIA PTY LTD

0.1

New

TEAC

\ \

100

VST

UVSH

100

PAL B/G

NTSC 3.58, NTSC 4.43, NTSC

Play Back, PAL 60

PAL-Multi

AV Stereo

Standard

4;3

Brightness, Colour, Contrast, Color Temperature, Hue, Sharpness Cont Var, Smart Pict. 4 Modes

Black Stretch

DV - CRT - RF 4:3 21"

Black Matrix, Iron

Stand Gun Neutral

Mute Volume

Normal

L01- Full Interface

Cursor Control

English No signal Auto Standby,Timer Power ON/OFF, Favorite Channel, Sleep timer, Game, Calendar, Notebook, Hotel lock , Auto Search

Auto Store, Factory Mode, Fine Tuning, Manual Search/Store, Manual Sort, Service Mode Clock, On/off timer, Sleep timer

2003-9-16 15:13 21166 PFS 1 of 3

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Specs / Products

+Local Controls Front

+Local Controls To +Indicators - screen +Indicators - front +Numb of Loc Cont +Number of Ind. +Local Controls Remote Control Connectors Rea +Scart RGB+Y/C+CVBS +Scart RGB+CVBS +Scart CVBS+Y/C +Com +In Y/C+Cinch +In Y/C+Cinch(CVBS+Mo +In Y/C+Cinch(St +In BNC (CVBS +In Cinch(CVBS+St +In Cinch +Out Cinch(CVBS+St +Out Cinch(CVBS+Mo +Out Cinch Audio Stereo +Out Cinch Audio Mono +Out Cinch Dolb +Out Cinch Subwoofer +Di +Louds +Control Busses +Feature Slot +ITV Smart Port +Terr. Antenna in Guide + IR Blaster Jack Connectors Fron +In Y/C + Cinch(CVBS+St +In Y/C + Cinch Stereo +In Cinch +In Cinch (CVBS+Mo +Headphone Out +Feature Slot Connectors Side +In Y/C + Cinch +In Y/C + Cinch Stereo +In Cinch +IN Cinch +Headphone Out Connectors To +In Cinch (CVBS + St +Headphone Out Connectors Mechanical +Head +Cinch A/V in/out +Cinch Com +Cinch Y/C St +Cabinet Name +Confi +Gra

-Cabinet Colour and Finish

Silver Frost

+Mechanics +S General +Se +Chassis +Software Deliver +Software Version +Mains Volta +Mains Fre +T Power Consum

onent In (Y/U/V) Cinch

CVBS+Mo

Audio Out

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CVBS + St+ Mo

CVBS + Mo

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CVBS+St

Surround

CVBS+St

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Mode

tion (P)TV in On

Product:

CT-M5110H

Channel +-, Volume +-, TV/AV,MENU, Power Switch,

RC Recvd LED, SB LED

7 1

75 Ohms (IEC type)

21166

Standard

Standard 4:3 M28

240V

50Hz

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Power Consumption SB in Watts Power Consum +Power in "ON" for +Power in Standb +Power in "OFF" for Wei Weight (P)TV (excl. Package Weight AVUnit excl Packagin +INDICATION on BACKCOVE +Channel Final E +Packa +Documents and manuals +Lan +Cables Su +Antenna Su +Stand Su +Aux E Packa Packa Packa Miscellaneous +EAN Indication +A +Tests +Local Inte

+Service Call-Rate PIP/POP +T +Features Di +Transmission Built-in Data S +Text Standard + +Nbr bck +Text Technolo +Di +Program Guide Built-in Clock/Timer +T +Features Built-in Radio +T Built-in PC displa +PC Synch +PC Control Built-in DVD drive +T +T +Version of Deck Phased Out Items +Tuner/Frontend +Sensitivit +CRT EHT +Li +Accoun +XX(Radio Antenna in +Non Volatile Memor +In Y/C + Cinch(CVBS+Mo Version of deck

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Product:

CT-M5110H

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2003-9-16 15:13 21166 PFS 3 of 3

Flowchart chart of alignment procedure for M28 chassis:

B+ adjustment NICAM

Adjustment

Sub-brightness

Adjustment

Pincushion and

screen width

adjustment

White balance

Adjustment

Screen center

& size

adjustment

(PAL)

Aging Adjustment of

Screen center

& size

adjustment

(NTSC)

Electrical

properties

checking for

chassis

screen voltage

and focus

QC checking

RF AGC

adjustment

Sub-color &

Sub-tint

adjustment

ALIGNMENT PROCEDURE FOR M28 CHASSIS:

I) Adjustment of B+ voltage

1. Apply 110-240VAC(±5V) to mains power input, and Philips standard testing pattern to RF input.

2. Adjust VR830 in STANDARD mode until voltage at TP2 (B+) is 112V ±0.5V.

II) NICAM Adjustment (for NICAM model only)

1. Apply a 38.9MHz color bar with NICAM signal to the IF input.

2. Monitor the DC voltage at pin 15 of IC1101.

3. Adjust T1101 until the voltage at pin 15 of IC1101 becomes 2.5 +/- 0.1V.

4. Then check the waveform at pin 4 and 6 of P1103 and it must show correct audio signal.

III) The alignment of RFAGC

1. Connect the detector shown below to collector of Q101.

2. Receive a grey scale signal with 70dBμV amplitude.

3. Adjust RFAGC item until the output of the detector becomes 0.8Vpp

Collector of Q101

To CRO

IV) Adjustment of Sub-contrast, Sub-tint and Sub-colour for NSTC and PAL signal.

1. Enter D-mode, and connect the probe of Oscilloscope to the conjunction between R201 and P201 (B-out).

2. Apply the Grey-scale/Colour-bar (NTSC signal) to the AV input, in STANDARD status.

3. Select CNTC to adjust the sub-contrast, until that the amplitude “A” is 2.5V

4. Select COLC to adjust the sub-colour by tuning the amplitude of “a” and “d” to the same.

5. Select TNTC to adjust the sub-tint by tuning the amplitude of “b” and “c” to the same.

6. Apply the Grey-scale/Colour-bar (PAL signal) to the AV input, in STANDARD status.

7. Select COLP to adjust the sub-colour by tuning the amplitude of “a”, “b”, “c” and “d” to the same.

V) Adjustment of Focus, Screen Voltage and Sub-brightness

1. Receive a crosshatch pattern.

2. Adjust the “FOCUS” VR on the flyback the make the picture clear.

3. Enter D-mode and press “MUTE” key and the screen will become a horizontal line. Then adjust the “SCREEN” VR on the flyback transformer to set the intensity of the line to a minimum visible level (the line can just be seen).

4. Press “MUTE” key again and the TV will become full raster.

5. Select BRTC to adjust the sub-brightness, until that the 2 be seen.

VI) Adjustment of White balance

1. Receive a black and white pattern at STANDARD status.

2. Use a color analyzer to measure the black side of the screen. By changing the value of BB and GB, set the reading of the color analyzer to x=284, y=299.

3. Then measure the white side of the screen. By changing the value of BD and GD, set the reading of the color analyzer to x=284, y=299.

4. Repeat step 2&3 until you can get the correct reading for both black and white sides.

VII) Adjustment of Pincushion and Picture Width (for pure flat model only)

1. Receive a crosshatch pattern.

2. Adjust VR302 until the vertical line become straight.

3. Adjust VR303 for horizontal size.

dark bar of 8 level grey scales just can

P-P

as shown below.

+ 23 hidden pages