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.
2
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.
3
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.
4
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.
5
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:
6
A: GENERAL SPECIFICATION :
1: CRT
14” 20” 21” 25”
XX
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
X
4.433MHz
X
X
3.579MHz
X
3.58MHz
8: INTERMEDIATE FREQUENCIES
PICTURE 39.5MHz
XX
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
XX
10: POWER SOURCE : AC 120V 60Hz±10% AC 200V 50Hz±10% AC 220V 50Hz±10%
AC 220V 50Hz+10%~25%
XX
AC 240V 50Hz±10%
AC 110V-240V 50/60Hz±10%
OTHER
11: AUDIO OUTPUT POWER (7%THD)
8
13”& 14”---1W
20”& 21”---2W
20”& 21”---2W + 2W (R + L)
25”---4W + 4W (R + L)
XX
29” >=6W + 6W (R + L)
34”---8W + 8W(R + L) OTHER
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
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
X
VOLTAGE SYNTHESIZER (V.S.)
X
9
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
XX
AUTO SEARCH) XX
FINE TUNING
XX
MANUAL TUNING)
4: PICTURE AND SOUND ADJUSTMENT
X
BRIGHT,CONTRAST,COLOUR AND VOLUME CONTROL
X
XX
TINT CONTROL(NTSC)
TREBLE,BASS,BALANCE CONTROL
XX
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
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
XX
10-120 MINUTES WITH 10M.INCREMENT
8:AUTO OFF WHEN NO BROADCASTING SIGNAL
10 min XX
15 min 20 min
10
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
XX
MAIN POWER SWITCH FUNCTION SELECT
XX
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
XX
75Ω AERIAL TERMINAL
300Ω AERIAL TERMINAL
RCA SOCKET(AV INPUT ONLY
RCA SOCKET--AV IN/OUT
08-29704T-MAN ASS'Y - MAIN BD25-BCB100-M1XCAP. ELEC 10 UF 16V +/-20%C12
08-29704T-MAN ASS'Y - MAIN BD41-WJ0160-B00WIRE BARE JUMPER 16MMC4 J238, J325, J334, J431
08-29704T-MAN ASS'Y - MAIN BD18-CB0472-JNXRES. C.F. 4.7K OHM 1/6W +/-5%C4 R066, R211, R965, R967
08-29704T-MAN ASS'Y - MAIN BD18-CB0332-JNXRES. C.F. 3.3K OHM 1/6W +/-5%C8
08-29704T-MAN ASS'Y - MAIN BD67-H30147-1A0HEAT SINK FOR HORIZC1 FOR Q412
08-29704T-MAN ASS'Y - MAIN BD67-H30179-3A0HEAT SIN
08-29704T-MAN ASS'Y - MAIN BD41-WJ0090-B00WIRE BARE JUMPER 9MMC2 J031, J634
08-29704T-MAN ASS'Y - MAIN BD41-WJ0170-B00WIRE BARE JUMPER 17MMC3 J231, J240, J835
08-29704T-MAN ASS'Y - MAIN BD67-H30705-3A0HEAT SIN
08-29704T-MAN ASS'Y - MAIN BD18-CB0223-JNXRES. C.F. 22K OHM 1/6W +/-5%C7
08-29704T-MAN ASS'Y - MAIN BD71-270870-0A9LABELH2
08-29704T-MAN ASS'Y - MAIN BD25-BEA102-M1
08-29704T-MAN ASS'Y - MAIN BD41-WJ0065-B00WIRE BARE JUMPER 6.5MMC8
08-29704T-MAN ASS'Y - MAIN BD41-WJ0110-B00WIRE BARE JUMPER 11MMC11
08-29704T-MAN ASS'Y - MAIN BD41-WJ0200-B00WIRE BARE JUMPER 20MMC8
08-29704T-MAN ASS'Y - MAIN BD41-WJ0125-B00WIRE BARE JUMPER 12.5MMC13
08-29704T-MAN ASS'Y - MAIN BD10-0BY228-F0XDIODE BY228 (FAST RECTIFIER)C1 D411
08-29704T-MAN ASS'Y - MAIN BD10-1N4001-EBXDIODE 1N4001 (RECTIFIER)C1 D301
08-29704T-MAN ASS'Y - MAIN BD10-55C12V-DBXDIODE ZENER 12V 1/2W +/-5%C2 D731, D732
08-29704T-MAN ASS'Y - MAIN BD10-55C4V7-DBXDIODE ZENER 4.7V 1/2W +/-5%C1 D222
08-29704T-MAN ASS'Y - MAIN BD10-55C5V1-DBXDIODE ZENER 5V1 1/2W +/-5%C2 D061, D101
08-29704T-MAN ASS'Y - MAIN BD10-55C8V2-DBXDIODE ZENER 8V2 1/2W +/-5%C2 D240, D471
08-29704T-MAN ASS'Y - MAIN BD10-CW574C-DJXDIODE CW574CSC1 D111
08-29704T-MAN ASS'Y - MAIN BD10-TFR104-FBXDIODE TFR104 (FAST RECOVERY)C4 D412, D421, D431, D441
08-29704T-MAN ASS'Y - MAIN BD18-CB0333-JNXRES. C.F. 33K OHM 1/6W +/-5%C4 R114, R208, R289, R714
08-29704T-MAN ASS'Y - MAIN BD18-CB0124-JNXRES. C.F. 120K OHM 1/6W +/-5%C1 R287
08-29704T-MAN ASS'Y - MAIN BD18-CB0752-JNXRES. C.F. 7.5K OHM 1/6W +/-5%C1 R221
08-29704T-MAN ASS'Y - MAIN BD11-SK2541-0BXTRANSISTOR 2SK2541 (N-CHANNEL)H1 Q052
08-29704T-MAN ASS'Y - MAIN BD26-EBP331-JCXCAP. CER 330 PF 50V +/-5% CHH6
08-29704T-MAN ASS'Y - MAIN BD26-EBP390-JCXCAP. CER 39 PF 50V +/-5% CHH1 C051
08-29704T-MAN ASS'Y - MAIN BD26-EBP470-JZXCAP. CER 47 PF 50V +/-5% SLH4 C072, C073, C261, T141
08-29704T-MAN ASS'Y - MAIN BD27-MCC562-J0
08-29704T-MAN ASS'Y - MAIN BD45-OSC4M4-3Y0CRYSTAL 4.43 MH
08-29704T-MAN ASS'Y - MAIN BD45-TRA5M5-0Y0CER. TRAP 5.5 MHZC1 Z254
08-29704T-MAN ASS'Y - MAIN BD45-OSC8M0-0Y0CRYSTAL 8.0MH
08-29704T-MAN ASS'Y - MAIN BD47-SVI002-XX0SOCKET S-W16-JC1 P981
08-29704T-MAN ASS'Y - MAIN BD63-B30100-BT4S/T SCREW B 3 X 10 BTC2 MTG M.BD & FB
08-29704T-MAN ASS'Y - MAIN BD63-W30100-AB4S/T SCREW W 3 X 10 ABC6 MTG M.BD & BK
08-29704T-MAN ASS'Y - MAIN BD64-P30080-104M/C SCREW P 3 X 8C1 FOR Q722
08-29704T-MAN ASS'Y - MAIN BD64-P30080-104M/C SCREW P 3 X 8C1 FOR IC301
08-29704T-MAN ASS'Y - MAIN BD64-P30080-104M/C SCREW P 3 X 8C1 FOR Q412
08-29704T-MAN ASS'Y - MAIN BD64-P30100-104M/C SCREW P 3 X 10C2 FOR IC601
08-29704T-MAN ASS'Y - MAIN BD65-Z30050-23MNUT M 3C2 FOR IC301 & Q412
08-29704T-MAN ASS'Y - MAIN BD65-Z30050-23MNUT M 3C2 FOR IC601
08-29704T-MAN ASS'Y - MAIN BD46-20598W-04XPIN BASE *4 TJC1-4AC1 P411FOR DY CONNECT.
08-29704T-MAN ASS'Y - MAIN BD40-2916MT-MAHP.C.B. MAIN BDC1
08-29704T-MAN ASS'Y - MAIN BD41-WJ0050-B00WIRE BARE JUMPER 5MMC19
08-29704T-MAN ASS'Y - MAIN BD41-WJ0085-B00WIRE BARE JUMPER 8.5MMC14
08-29704T-MAN ASS'Y - MAIN BD41-WJ0135-B00WIRE BARE JUMPER 13.5MMC7
08-02970T-AVYASS'Y - SIDE AV BD47-RCA002-XX0JACK RCA AV-3.2-1L-F3 WHITEC1 P952L
08-02970T-AVYASS'Y - SIDE AV BD47-RCA003-XX0JACK RCA AV-3.2-1L-F1 YELLOWC1 P953V
08-02970T-AVYASS'Y - SIDE AV BD47-RCA017-XX0JACK RCA 101P RED/SWC1 P951R
08-02970T-AVYASS'Y - SIDE AV BD63-W30100-AB4S/T SCREW W 3 X 10 ABC2 MTG SIDE AV BD & REAR CAB.
08-02970T-AVYASS'Y - SIDE AV BD40-2970UA-SIBP.C.B. SIDE AV BDC1
08-02970T-AVYASS'Y - SIDE AV BD41-WJ0050-B00WIRE BARE JUMPER 5MMC1 FOR P1 - P3 OF IC951
08-02970T-AVYASS'Y - SIDE AV BD41-WJ0060-B00WIRE BARE JUMPER 6MMC1 JM13
08-02970T-AVYASS'Y - SIDE AV BD41-WJ0065-B00WIRE BARE JUMPER 6.5MMC3 JM13B, R952, R953
08-02970T-AVYASS'Y - SIDE AV BD41-WJ0070-B00WIRE BARE JUMPER 7MMC1 R967
08-02970T-AVYASS'Y - SIDE AV BD41-WJ0100-B00WIRE BARE JUMPER 10MMC1 J961
08-02970T-AVYASS'Y - SIDE AV BD41-WJ0050-B00WIRE BARE JUMPER 5MMC1 FOR Q963 (B - E)
08-02970T-AVYASS'Y - SIDE AV BD41-WJ0050-B00WIRE BARE JUMPER 5MMC3 C951, C954, C955
08-02970T-AVYASS'Y - SIDE AV BD46-37031H-06XHS 6P 2468#24 500 TJC3-6Y/SCNC1 P902P2 - P7 FOR M. BD P003
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 th e D-Mode key (on factory remote hands et) by 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 b efore 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 “key 7” must keep unchanged when servicing. Othe rwise, the set may not
work properly.
Setting method:
No Adjustment
Items
1Screen
voltage
2 Focus voltage------------Cross hatch
3VCO------------Apply an IF
Data Name (default
value inside blanket)
------------“IRGB cut off”
Conditions and
input signal
must set to 80 (all
signal (see tuner
frequency) to the
pattern)
pattern.
spec. For
IF input.
Setting method (need enter D-mode)
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).
Adjust the “focus” VR on the flyback until
the screen becomes clear.
Monitor the DC voltage at pin 48 o
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.
4Vertical
f
f
geometry for
PAL system
(Key 2)
VPOS50 (04)
HIGH50 (25)
VLIN50 (04)
VSC50 (05)
OSD50 (20)
Input a PAL cross
hatch pattern.
Adjust VPOS50 for vertical position.
Adjust HIGH50 for vertical amplitude.
Adjust VLIN50 for vertical linearity.
Adjust VSC50 for vertical S-correction
Adjust OSD50 for OSD position (normally
use default value).
5Vertical
geometry for
NTSC system
(Key 3)
6Horizontal
geometry for
PAL system
(Key 4)
7Horizontal
geometry for
NTSC system
(Key 5)
VPOS60 (00)
HIGH60 (2E)
VLIN60 (05)
VSC60 (0A)
OSD60 (89)
HPOS50 (0D)
HSIZE50 (2A)
PARA50 (14)
TRAP50 (0E)
CORN50 (0A)
VEHT50 (03)
HEHT50 (02)
HPOS60 (11)
HSIZE60 (2A)
PARA60 (18)
TRAP60 (0D)
CORN60 (0D)
VEHT60 (03)
HEHT60 (02)
Input a NTSC
cross hatch
pattern.
Input a PAL cross
hatch pattern with
black and white
background.
Input a NTSC
cross hatch
pattern with black
and white
background.
Adjust VPOS60 for vertical position.
Adjust HIGH60 for vertical amplitude.
Adjust VLIN60 for vertical linearity.
Adjust VSC60 for vertical S-correction
Adjust OSD60 for OSD position (normally
use default value).
Adjust HPOS50 for horizontal position.
Adjust HSIZE50 for horizontal width.
Adjust PARA50, TRAP50 and CORN50
until the vertical line at left and right side
of the picture become straight.
VEHT and HENT is for the picture size
stability when changing the brightness o
the screen. Receive pattern o f cross hatch
with black background and then change to
white background, then compare the
vertical and horizontal size between black
and white background. Adjust VEHT and
HEHT until you get the minimum
difference of screen size. After you adjust
VEHT and HEHT, you must re-adjust
vertical and horizontal amplitude.
Adjust HPOS60 for horizontal position.
Adjust HSIZE60 for horizontal width.
Adjust PARA60, TRAP60 and CORN60
until the vertical line at left and right side
of the picture become straight.
Adjust VEHT and HEHT using same
method of PAL system. Also need readjustment of vertical and horizontal
amplitude.
1
2
Key 6
(Status
adjustment)
RFAGC (25)
PIFAFT (44)
HAFC (00)
S-B-Y (08)
S-R-Y (08)
VOL 05 (48)
VOL 25 (65)
VOL OUT(73)
Receive a 60dB
grey scale + color
bar signal
RFAGC – monitor the voltage at AGC pin
of the tuner. Then increase the setting o
RFAGC until the tuner AGC voltage reach
maximum (about 5V). Then decrease the
RFAGC setting until the AGC voltage just
drop.
Adjust S-B-Y and S-R-Y to get the optimal
color for SECAM system.
Please keep the PIFAFT value after auto
AFT adjustment.
HAFC item must use the default value.
(curve of
volume
control)
--------- VOL05 is the volume output level at 5%
VOL25 is the volume output level at 25%
Remark: The value of VOL05 and VOL25 was
not suggested to vary in every set. It is
suggested to use the default value.
13 White balance
adjustment
(key 1)
R CUT (6B)
G CUT (9E)
B CUT (7C)
G DRV (39)
B DRV (35)
Black and white
pattern (PAL)
1. Measure the dark side of the picture with a
color analyzer and set RCUT to 80. Then
adjust BCUT and GCUT until the data on
the analyzer become x = 284, y = 299.
2. Measure the bright side of the picture,
Then adjust BDRV and GDRV until the
data on the analyzer become x = 284, y =
299.
3. Repeat step 1 and 2 until you get right
color on both dark and bright side of the
screen.
Other adjustment (default value was suggested, except BRTC)
8Key 0OSD (0A)
TXCX (30)
RGCN (20)
TNTX (25)
TNTN (32)
FMMODE (13)
DKFMMD (20)
9Key 8SCNT (0F)
CNTX (3F)
CNTN (00)
BRTX (20)
BRTN (25)
COLX (35)
COLN (00)
10Key 9CNTC (22)
BRTC (37)
COLC (50)
TNTC (35)
COLP (00)
COLS (54)
BRTS (00)
----------OSD – OSD position
TXCX – OSD intensity when maximum
contrast
RGCN – OSD intensity when minimum
contrast
TNTX – maximum tint level
TNTN – minimum tint level
FMMODE – frequency shift for FM (mono)
mode, only useful for NICAM
model
DKFMMD - frequency shift for DK NICAM
mode
----------SCNT – sub contrast for luminance signal
CNTX – maximum contrast
CNTN – minimum contrast
BRTX – maximum brightness
BRTN – minimum brightness
COLX – maximum color
COLN – minimum color
----------CNTC – 50% contrast
BRTC – 50% brightness
COLC – 50% color
TNTC – 50% tint
COLP – color level for PAL
COLS – color level for SECAM
BRTS – sub brightness for SECAM
For the adjustment of BRTC, re ceive an 8
step grey scale pattern and adjust all
picture settings to 50%. Then adjust B RTC
until the first and second step on the screen
can just be distinguished.
11 Two digit key
-/--
(sharpness
adjustment)
13 KEY CALLDBE STR 50
SHPTV3 (1A)
SHPAV3 (1A)
SHPTV4 (18)
SHPAV4 (18)
SHPX (1A)
SHPN (1F)
DBE HMC 0D
DBE HP 07
DBE LP 00
DBE LIM FO
SUB FRE 15
SUB HP 02
VOLMAI 03
System data:
ItemAdjust itemDefault value
----------SHPTV3 – 50% sharpness in 3.58 system
(TV)
SHP AV3 – 50% sharpness in 3.58 system (AV)
SHPTV4 – 50% sharpness in 4.43 system
(TV)
SHP AV4 – 50% sharpness in 4.43 system (AV)
SHPX – maximum sharpness
SHPN – minimum sharpness
Richly Music
Signal
Effect Strength
Harmonic Content
High Pass Corner Frequency
Low Pass Corner Frequency
Amplitude Limit
Subwoofer Corner Frequency
Subwoofer Complementary High Pass Filter
Volume Loudspeaker
12Key 7VCDM0
VCDM1
VCDM2
MODE0
MODE1
MODE2
OPTION
It is subject to the current ODF.
Please check the sample to get the value.
System setting of M13
VCDM0 (default value: 28)
BIT Item
0System switch: 0 : normal identify mode 1 : weak signal identify mode
1White peak suppress: 0: on 1: off
3High Sensibility: 0: off 1: on
4, 5STANDBY status after switch on : 00 or 10: force STANDBY
01: force on. 11: status before switch off
6,7Mode0.6, Mode0.7: 0X: English 10: English + Russia 11: English + Vietnamese
MODE1
BIT Item
0BG : 0 : off 1 : on
1I : 0 : off 1 : on
2DK : 0 : off 1 : on
3M : 0 : off 1 : on
4, 5 SSIF1, SSIFO Default sound system after auto search:
00 : BG 01 : I 10 : DK 11 : M
6AV/TV: 0: TV/AV 1: TV AV1/AV2
7Number of channels: 0: 50 1: 100
MODE2
BIT Item
0D-MODE : 0: off 1: on
1Teletext 0: off 1: on
2COMB Filter 0: off 1: on
3BBE 0: off 1: on
4NICAM & IGR 0: off 1: on
5WOOFER 0: off 1: on
6DBE 0: off 1: on
7VM 0: off 1: on
OPTION (default value: 10)
BIT Item
0When blue background off (mute pin of CPU):
0: audio mute on 1: audio mute off
1When blue background off (external mute pin of CPU):
0: audio mute on 1: audio mute off
2When change channel:
0: picture mute on 1: picture mute off
3Audio demodulation gain setting:
0: 50KHz 1: 25KHz
4When no signal:
0: search channel by changing VT 1: use memorized VT
5Logo: 0: off 1: on
6OSD black background: 0: off 1: on
7Display on Sound Mode Changing:
0: on 1: off
M13 Block Diagram By XiaoCM2002/8/8
Audio, Video out
9V
AV In/OutAV Selector
IC 961
AV1/AV2 Select
Video In
9V
Tunner
TU101
SAW Filter
Z101
IF
5V
CPU
IC001
AV/TV Select
Audio Selector
IC962
Audio
5V9V
TB1240
IC201
I2C
Speakers
Amplifier
IC601
RGB
23V
AC
12V
CRT
board
V. Drive
T401, Q401, Q402
9V
IC301
H. Drive
Power Supply
T802
RGB
28V
140V
140V,23V,5V,9V
12V
CRT
Deflection
Yoke
140V
FBT
T402
HV
28V
5V
EEPROM
IC002
KEYIR Sensor
TEXT BoardComb Flitter
OptionalOptional
5V
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