Teac EC-2560 Service Manual
SERVICE MANUAL
CTM5954
59CM CTV
APR03 CTM5954SERV
TEAC
SERVICE MANUAL
1. Caution……………………………………………………………2
2. Specification………………………………………………………6
3. BOM List ……………………… …………...Temporary Absence
4. Alignment Procedure………………………………………….…13
5. Block Diagram……………………………………………………19
6. Schematic Diagram………………………………………………20
7. PCB Layout………….……………………………………………21
This manual is the latest at the time of printing, and does not
include the modification which ma
y
be made after the printing, b
y
the constant improvement of product.
EC-2560
WARNING: TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION: TO REDUCE THE RISK OF
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 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.
CAUTION:
Use of controls, adjustments or procedures other than those specified herein may result in
hazardous radiation exposure.
CAUTION
RISK RISK OF OF ELECTRIELECTRICC
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, 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 car t 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 . 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.
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, 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.
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.
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, 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.
ANTENNA
LEAD- IN WIRE
ANTENNA DISCHARGE
UNIT (NEC SECTION
810-20)
GROUNDING
CONDUCTORS
(NEC SECTION810-21)
GROUND CLAMPS
POWER SER VICE GROUNDING
ELECTRODE 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 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.
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 ser vice 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.
5
off
6
PRODUCT SPECIFICATION
MODEL：：：： 2560
AMBIENT CONDITIONS：：：：
AMBIENT TEMPERATURE：：：：
OPERATING ：：：：-10°°°°C ~ +40°°°°C
STORAGE ：：：：-15°°°°C ~ +45°°°°C
HUMIDITY
OPERATING：＜
：＜：＜
：＜80%
STORAGE: ＜＜＜＜90%
AIR PRESSURE: 86kpa ~ 106kpa
PREPARED BY : DATE:
APPROVED BY: DATE:
7
A: GENERAL SPECIFICATION :
1: CRT
14” 20”
21” XX
25”
29” 34” OTHER
2: CHASSIS:
DIGITAL NICAM STEREO XX
ANALOG
SURROUND SOUND TELETEXT GERMAN STEREO
XX
S.VHS OTHER
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
OTHERS M13
4: TV BROADCASTING SYSTEM AND COUNTRY
PAL-I XX
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 SYSTEM
UK HK GERMAN RUSSIA
CHINA USA E.EUROPE VIETNAM
CANADA DUBAI INDONESIA S.AFRICA
MALAYSIA MID. AMERICA SINGAPORE ISRAEL
XX
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
8
CH2--CHS20（CABLE BAND） CH2--CH13（USA BAND）
CH21--CH69 CH14--CH83
CHR1--CHR12（OIRT） CH1--CH12/CH13-CH57（CHINA BAND）
XX
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
3.579MHz
3.58MHz
8： INTERMEDIATE FREQUENCIES
PICTURE 39.5MHz SOUND 6.0MHz
XX
PICTURE 38.9MHz XX
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 XX
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％
X
X
AC 240V 50Hz±10％
AC 110V-240V 50/60Hz±10％
OTHER
9
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)
XX
OTHER 25” >=6W + 6W (R + L)
12： AERIAL INPUT IMPEDANCE
XX
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
CB APPORVAL
OTHER
14： PRODUCT EMC/EMI REQUIREMENT
FTZ APPOVAL
FCC APPROVAL
CHINA APPOVAL
OTHER
B： BASIC FEATURES OF CONTROLLER
1： CHANNEL TUNING METHOD
10
XX
VOLTAGE SYNTHESIZER (V.S.)
PLL FREQUENCY SYNTHESIZER (F.S.)
2： PRESETTABLE PROGRAM
50 PROGRAMS 0-99 PROGRAMS
XX
100 PROGRAMS 181 PROGRAMS
OTHER
3： TUNING FOR VHF AND UHF BANDS
X
X
AUTO SEARCH）
X
X
MANUAL TUNING）
XX
FINE TUNING
4： PICTURE AND SOUND ADJUSTMENT
XX
BRIGHT，CONTRAST，COLOUR AND VOLUME CONTROL
XX
TINT CONTROL(NTSC)
XX
TREBLE，BASS，BALANCE CONTROL
XX
SHARPNESS CONTROL OTHER
5： TELETEXT
SIMPLE TEXT TOP(TABLE OF PAGES)
FLOF (FASTEXT) LIST
6： ON SCREEN DISPLAY
X
X
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
XX
10-120 MINUTES WITH 10M.INCREMENT
8：AUTO OFF WHEN NO BROADCASTING SIGNAL
10 min XX
15 min 20 min
11
9： FULL FUNCTION INFRARED REMOTE CONTROL
P/N OF REMOTE CONTROL INLAY) :
10： REMOTE EFFECTIVE DISTANCE 8 m
C： CONSTRUCTION OF FRONT PANEL
XX
MAIN POWER SWITCH FUNCTION SELECT
XX
REMOTE SENSOR XX
MENU SELECT
SYSTEM FUNCTION S.VHS INPUT
MICROPHONE INPUT XX
TV/AV SELECT
XX
STANDBY INDICATOR XX
PROGRAM VOLUME UP/DOMN
BAND SELECT XX
RCA SOCKET (SIDE)
EARPHONE INPUT OTHER
AUTO SEARCH AND MANUAL TUNING SELECT
D： CONSTRUCTION OF REAR PANEL
XX
75Ω AERIAL TERMINAL
300Ω 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 SOCKET --A-R+L /V INPUT X 2，
SCART SOCKET
XX
S.VHS INPUT
EXT/INT SPEAKER SELECT
EXT.SPEAKERS（R+L）TERMINALS
EXT.SPEAKERS（R+L）RCA SOCKET
SUPER WOOFER TERMINAL
OTHER
E： AUDIO AND VIDEO INPUT/OUTPUT
12
XX
RCA SOCKET
SCART SOCKET(AV)
S SCART SOCKET(FULL)
SPECIFICATION SCART RCA
VIDEO INPUT 75Ω S
1V
P-P
1V
P-P
AUDIO INPUT 10kΩ (R+L)
0.5V
rmS
0.5V
rmS
VIDEO OUTPUT 75Ω
1V
P-P
1V
P-P
AUDIO OUTPUT 1kΩ (R+L)
0.5V
rmS
0.5V
rmS
RGB INTPUT 75Ω
0.7V
P-P
AUDIO LINE OUTPUT 1kΩ
1V
P-P
F： OTHERS INFORMATION
1. FLYBACK ：
2. TUNER ：
3. SAW FILTER ：
4. POWER CORD ：
5. FUSE ：
6. COLOUR TEMP ：
7. MAGNETIC FIELD ：
8. IC EEPROM ：
9. IR RECEIVER ：
10. CIRCUIT DIAGRAM ：
11. MAIN BOARD ：
TB1240 + TCLM13 chassis alignment instruction
Enter factory mode in production line
Simply press the D-mode key on the factory remote handset.
Enter service mode
Press and hold the VOLUME DOWN key tightly on the unit until minimum level and don’t release the
VOLUMN DOWN key, then press the DISPLAY key on the remote handset three times.
“D” letter on the screen indicated that the factory mode was entered. Now you can use the shortcut key
to access the factory menu. All change in factory data will save in EEPROM automatically
Note:
1. You can disable the D-Mode key (on factory remote handset) b y change “BIT-0” of “MODE2” to
“0”. If the D-Mode key was disabled, you can’t enter D-Mode by the D-mode key on the factory
remote (but you can still enter service mode). It is suggested to disable the D-Mod e key befor e the
set leave the factory.
2. On the factory remote handset, you can find the “BUS OFF” key. It can cut off the I2C control from
the CPU to other IC. This is only useful when automatic adjustment of white balance.
3. All system data in menu of “k ey 7” must keep unchanged when servicing. Otherwise, the set may not
work properly.
Setting method:
No Adjustment
Items
Data Name (default
value inside blanket)
Conditions and
input signal
Setting method (need enter D-mode)
1 Screen
voltage
------------ “IRGB cut off”
must set to 80 (all
pattern)
Press “MUTE” key on the remote handset
and the screen will become a horizontal
line. Then adjust the “screen” VR on the
flyback until the horizontal line can just be
seen (minimum visible intensity).
2 Focus voltage ------------ Cross hatch
pattern.
Adjust the “focus” VR on the flyback until
the screen becomes clear.
3 VCO ------------ Apply an IF
signal (see tuner
spec. For
frequency) to the
IF input.
Monitor the DC voltage at pin 48 o
f
IC201, then adjust T271 until the voltage at
pin 48 become 4.62 +/- 0.02 V.
Press the AFT button on the factory remote
and AFT adjustment will be done
automatically.
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