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SERVICE MANUAL
MODEL: 21TS1020
CHASSIS: 3P66SN
EN 1 1. 3P66 Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections,and Chassis Overview
Index of this chapter
Technical Specifications
Connection Overview
Chassis Overview
Note: Data below can deviate slightly from the actual situation, due to the different set executions.
1.1.Technical Specifications
Chassis 3P66A 3P66E(RCAMODE) 3P66E(SCART MODE) 3P66S
CRT Size 14"~21" 14"~21" 14"~21" 14''-21''
14/21RF:TDA11105 14/21RF:TDA11106 14/21RF:TDA11106
Main IC. TDA11145
21Slim:TDA11135 21Slim:TDA11136 21Slim:TDA11136
Main PCB Size (mm) 304X246 304X246 304X246 304X246
Color Standard
PAL PAL/SECAM PAL/SECAM NTSC-M/PAL-M/N
Sound Receiver BG/DK/I BG/DK/I BG/DK/I M,N
System System (AV) PAL/NTSC PAL/SECAM/NTSC PAL/SECAM/NTSC PAL/NTSC
Power Source AC100-240V 50/60Hz AC100-240V 50/60Hz AC100-240V 50/60Hz AC100-240V 50/60Hz
Power Standby <3W < 3W < 3W 3W
14"60W;21" REAL FLAT FLAT CRT FLAT CRT
Maximum Power CRT 80W;21"SLIM CRT 80W;21"SLIM CRT 80W;21"SLIM CRT 14"70W;21" REAL FLAT CRT
100W 100W 100W 90W;21"SLIM CRT 115W
PRESET CHANNEL 200 200 200 181CH
TUNER TYPE FS FS FS FS
Antenna InpuT 75 Ohm(Unbalance) 75 Ohm(Unbalance) 75 Ohm(Unbalance) 75 Ohm(Unbalance)
COM.FILTER NO NO NO NO
Double Window NO NO NO NO
Progressive Scan
NO NO NO NO
Freeze NO NO NO NO
zoom NO NO NO NO
SVM NO NO NO NO
Picture
Screen saver NO NO NO NO
Blue Back YES YES YES YES
Noise Reduction NO NO NO No
Pictures effect: Standard,soft,rich,user Standard,soft,rich,user Standard,soft,rich,user Standard,Soft,Rich, User
Color Temperature NO NO NO NO
Black Extend YES YES YES YES
Nicam/A2 (with AV STEREO)
NO NO NO NO
Tone Control NO NO NO NO
surround NO NO NO NO
MTS ( with AV STEREO )
NO NO NO OPTION
Tone Control NO NO NO NO
surround NO NO NO NO
AV STEREO YES YES YES YES
Tone Control NO NO NO NO
SOUND
surround NO NO NO NO
MONO NO NO NO NO
Audio Output Power MAX 2W+2W 2W+2W 2W+2W 5W+5W
Technical Specifications, Connections, and Chassis Overview 3P66 1. EN 2
Subwoofer Out NO NO NO NO
Mute YES YES YES YES
sounds effect No NO NO NO
No signal auto standby 15 MIN 15 MIN 15 MIN 15Min
Timer Off/On YES YES YES YES
Sleep Timer YES YES YES YES
Rename channel NO NO NO NO
Favorite channel NO NO NO NO
Biological Clock NO NO NO NO
Calendar NO NO NO NO
Program prearrange NO NO NO NO
Child Lock YES YES YES YES
Quick view YES YES YES YES
Hotel mode NO NO NO NO
Clock
Features YES YES YES YES
Game NO NO NO NO
CCD NO NO NO YES
V-Chip NO NO NO YES
High gain tuner NO NO NO NO
Customer Band Name (OSD) NO NO NO NO
Mode NO NO NO NO
Teletext Pages NO NO NO NO
X26 Packet NO NO NO NO
ENGLISH ,
ENGLISH, ENGLISH,
RANCAIS,Portuguese,T
FRANCAIS,Portuguese, FRANCAIS,Portuguese,
URKEY,ARABIC,FARSI, English,French,Portuguese,Spanis
OSD Language RUSSIA,SPAIN,THAI,VI
TURKEY,ARABIC,FAR TURKEY,ARABIC,FAR
h
SI,RUSSIA,SPAIN,THAI SI,RUSSIA,SPAIN,THAI
ETNAM
,VIETNAM ,VIETNAM
RCA Jack YES YES NO YES
SCART NO NO YES NO
AV In-Front
1 1 1
AV Input-Rear 1
Terminal
s YES YES YES
AV Output YES
earPhone NO NO NO NO
YUV YES YES NO YES
S-Video In NO NO NO NO
UL NO NO NO NO
Certification CB YES YES YES YES
CE/EMC YES(OPTION) YES(OPTION) YES(OPTION) NO
Handset RC13 RC13 RC13 RC13
Other
Option feature cost
14NK,14NX,14NZ,14NI,14NS,14N03,14N01,14N02,14N07,21NX,21NZ,21T05,21N0
Applicable Cabinet 5,21NK,21NI,21TN,21TI,21T15,21N15,21NS,21N03,21T03,21N01,21T01,21N02,21
N07,21T07,21N0C,21TOC,21T91,21N91,21N10,21T10,21D93,21T11,21U10,21D11,
21D88,21U11,21U16,21N12,21T12,21U12
EN 3 1. 3P66 Technical Specifications, Connections, and Chassis Overview
1.2. Connections
Connecting the Aerial(or Cable Television Network)
To view television channels correctly ,a signal
must be received by the set from one of the
following sources:
*An outdoor aerial
*A cable television network
75 ANT
Plug the aerial or cable network input cable to
Cable the 75 coaxial socket on the rear of the
Television
Network television.
Front(or side)Audio/Video Input(option)
SOCKETS
VIDEO RIGHT
LEFT LEFT
RIGHT VIDEO
or
AV2 IN AV2 IN
VCR
Decoder/
video game device
V V
VIDEO Video disc player
L L
LEFT
R R Camcorder
RIGHT
Satellite receiver
Technical Specifications, Connections, and Chassis Overview 3P66 1. EN 4
STEREO AV & YUV
AV OUT AV1 IN YCbCr IN
VIDEO VIDEO Y
LEFT LEFT Cb
75 ANT
Cable
RIGHT RIGHT Cr
Television
Network
AV1 IN
VCR
V V
VIDEO
L L
LEFT Decoder/
video game device
R R
RIGHT
Video disc player
YCbCr IN AV1 IN
Y Y
Cb Cb
Y VIDEO
Cr Cr Camcorder
Cb LEFT L L
Cr RIGHT R R
Satellite receiver
AV OUT
TV
V V
VIDEO
L L Amplifier
LEFT
R R
VCR
RIGHT
EN 5 1. 3P66 Technical Specifications, Connections, and Chassis Overview
PERIPHERAL EQUIPMENT CONNECTIONS
There is a wide range of audio and video equipment that can be connected to your TV.
Connection diagrams at the end of this section show you where the different equipment should be connected at the backside of the TV.
.
Aerial socket
1. Connect the RF out socket of the VCR to the aerial socket on the back of the set.
2. Connect the aerial cable to the RF aerial in socket of the VCR.
3. Select the program number where the VCR channel is stored.
4. Press the PLAY button on the VCR.
Audio/ Video in sockets
1. Connect the audio/video out sockets of the VCR to audio/video in sockets of the set.
2. Press the AV/TV button to select AV.
3. Press the PLAY button on the VCR.
The VCR playback picture appears on the screen.
Precautions when connecting to other equipments
When using external equipment with this TV, please read the instruction manual of the external equipment.
Switch off all power supplies to the equipment and TV before connection.
Always ensure that the input and output terminals are correctly connected..
Technical Specifications, Connections, and Chassis Overview 3P66 1. EN 6
1.3. ChassisOverview
CRT PANEL
MAIN POWER SUPPLY
CHASSIS
PANEL LINE DEFLECTION
FRAME DEFLECTION
TUNER IF
AV I/O
AUDIO / VIDEO
VIDEO IF SOUND IF
CPU CONTROL
AUDIO AMPLIFIER
EN 7 2. 3P66 Safety Instructions
2.Safety Instructions
2. 1. Power-supply cords should be routed so that they are not likely to be walked on or nagged by items placed
upon or against them. Pay particular attention to cords at doors, plugs, receptacles, and the point where they exit
from the product. When the power cord or plug is damaged or frayed, unplug the TV from the wall outlet and refer
servicing to your authorized dealer.
2. 2. Do not overload wall outlets, extension cords, or convenience receptacles on other equipment as this can result
in a risk of fire or electric shock.
2. 3. Unplug the TV product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.
2. 4. If the TV should be dropped and/ or broken, it could result in an injury, and continued use could result in fire or
electrical shock. Immediately turn off the power switch, disconnect the power plug from the power outlet and contact
your authorized dealer.
2. 5. Do not insert liquids or foreign object. Penetration of liquids or foreign objects could result in fire or electrical
shock.
2. 6. Do not attempt to service the TV yourself. Opening or removing covers can expose you to high voltage and other
dangerous conditions. Refer all servicing to your authorized dealer.
2. 7. Do not place the TV on an unstable shelf, slant or vibrant surface. The TV may fall, causing serious injury to
human and serious damage to the appliance.
2. 8. Avoid dusty places, since accumulated dust inside the chassis may cause failure of the TV when in high humidity
environment.
2. 9. Do not place the TV near water. For example, a bathroom, a beach, etc.
2. 10. Do not obstruct the ventilation openings of the equipment with items such as newspapers, tablecloth, etc.
2. 11. Do not place the TV on a carpet, sofa or bedding.
2. 12. Keep the TV away from heat sources such as radiators, heaters, stoves and other heat generating products.
2. 13. Do not place the TV in a "built-in" enclosure, unless proper ventilation is provided.
2. 14. Do not place flower vases, pots, cups, cosmetics, liquids such as water, etc on or around the TV.
2. 15. Choose a place where light (artificial or sunlight) does not shine directly on the screen.
2. 16. If the TV does not work properly and you are unable to restore normal operation by following the "troubleshooting"
section in your instruction manual, do not attempt any further adjustment. Unplug the TV and consult your authorized
dealer.
2. 17. Do not touch the controls other than those described in the operating instructions as improper adjustment of
other controls may result in damaging. Please ask your service authorized dealer to restore the TV to normal operation.
2. 18. For added protection for this TV during a lightning storm, unplug it from the wall outlet and disconnect the
antenna or cable system.
2. 19. If a strange sound or smell gives off from the TV, please turn off and unplug it from the wall outlet, then refer to
authorized dealer.
2. 20. To prevent fire, never place any type of candle or naked flames on the top or near the TV.
2. 21. Avoid any kind of impact to the TV. Be special careful not to damage the screen face.
2. 22. If the TV is to remain unused for a period of time. Turn off and unplug it from the wall outlet.
MechanicalInstructions 3P66 3. EN 8
EN 9 4. 3P66 Service Modes
4. 3P66SN Service Modes
4.1. Enter and exit service mode
a. Enter "factory service mode"Press "MENU","Q.VIEW" and "PP" in turn.
b. Enter "design service mode" : After entering "factory service mode",select"SC"item,then press "8","9"keys.
(Normally "design service mode"is not needed for production line.)
c. Exit service mode: Press"DISPLAY"key to exit service mode.
Adjustment:
In service mode,pressing digital keys directly can enter the corresponding page,pressing "MENU"key can enter
the next page,pressing "SCAN"key can enter prevenient page.
Pressing "UP"and"DOWN"keys can select the items to adjust, pressing"LEFT" and"RIGHT"keys can adjust the
values.
4.2. BUS OPEN mode
In service mode, pressing"MUTE"key can enter "BUS OPEN"mode, which is useful for white balance adjustment
using AUTO WHITE BALANCE EQUIPMENT or mass data written into EEPROM. IC. Pressing"MUTE"key again
can exit "BUS OPEN" mode.
4.3. VG2 adjust mode
Two methods to adjust VG2 voltage:
(1) OSD mode:
This mode is for sets with AKB function(page10 "VG2-MODE"is set to 1 and hardwire is with CCC loop ), adjust
the VG2 potmeter on the FBT till "OK" is displayed.
(2) Horizontal line mode:
This mode is for sets without AKB function(page 10"VG2-MODE" is set to 0 and hardwire is without CCC loop),
adjust the VG2 potmeter on the FBT untill the faint horizontal line appears in dark room(usually only one colour:
Red ,green or blue.
*Note:VG2 voltage is also controled by"VG2-BRI"on page (5).
*Note:
4.4. FACTORY mode
In service mode, pressing"PP"key can erter "FACTORY MODE", which is useful for aging in production lines.
Pressing "PP"key again can exit "FACTORY MODE".
4.5. RF AGC adjustment
a. Receive 571.25MHz , 60dB color bar signal.
b. Enter factory mode and press digital key "03".
c. Measure tuner AGC point voltage, and adjust AGC item till the voltage is 2.7V 0.1V (or till picture noise just
disappears)Usually the AGC value is fixed to 20.
4.6. FOCUS adjudtment
a. Receive cross-hatch pattern signal.
b. Set picture to"RICH" mode.
c. Adjust FBT's FOCUS knob till picture is clear.
4.7. SCREEN VOLTAGE adjustment
a. The TV set will be set up in the "AV" "STANDARD" mode, no signal input.
b. Enter into adjust factory mode, and press "03" keys to choose "Vg2" item, it will be permitted to enter light
Line mode.
c. In light-Line mode, Rotating screens potential for grid-line level so you can adjust. Press "CH+."or "CH-." Key ,
the by-line can be returned to the state in full screen mode, and then exit it.
4.8. Aging of machine mode
a. When enter into factory mode state, pressing P.P. key will be permitted to enter Aging of machine mode.
b.Press "8"key and "9"key one by one button exit aging mode .
4.9. BTSC alignment method(3P66SN)
a. FLUKE 54200 trasmitting colour barSignal frequency at 61.25MHZSignal strength at 80dBTest 3 under
BTSC settingssound frequency at 300HZInput signal to 3P66SN Latam RF, turn on TV.
Service Modes 3P66 4. EN 10
b. After TV operate normally, use 3P66SN Latam RC to perform Auto-search or select CH03.
c. Enter factory mode (exact details refer to 3P66SN alignement instruction), use Multimeter FLUKE 87 to
measure at J852 to achieve a reading of 0.25 0 .02 Vrms.
d. Enter factory mode page 7 , in the selection of BTSC-L1, use multimeter FLUKE 87 to measure R860(CHL)
and R862(CHR) ( effective L, R audio output from TDA9580 BTSC demodulation), Adjust BTSC-L1 to achieve
CHR, CHL at 0.5 0.02 Vrms.
e. FLUKE 54200 transmitting colour barSignal frequency at 61.25MHZSignal strength at 80dB, Item Test1
under BTSC, BTSC-MOD to set Stereo.
f. Use Dual Trace Oscilloscope, CH1 measures R860 (CHL), CH2 measures R862(CHR).Enter Factory mode
page 7, Select Stereo in BTSC-MODE, adjust BTSC-A1 and BTSC-A2, to achieve the clearest, cleanest, least
interdependent waveforms of 300Hz and 3kHz. Also adjust BTSC-TC, to achieve the best waveform of 300Hz
and 3kHz. (Suggest default value of 4)
g. "Reduce the signal strength of FLUKE 54200 to 30dB, transmitting colour bar, Signal frequency at 61.25MHZ
BTSC-Stereo, SAP-MOD, audio frequency at L=300Hz, R=3kHZ. Adjust values of BTSC-ST and BTSC-SP while
pressing "SAP" key on the RC, until no detection of Stereo and SAP, then Adjust values of BTSC-ST and
BTSC-SP while pressing "SAP" key on the RC, until proper detection of Stereo and SAP. Final confirmation of
values for BTSC-ST and BTSC-SP."
4.10. Factories parameters of the adjustment
Debugging items and directive from the page " 0" to page" 15" consists of 16 items, and a "predetermined
adjustment page"Belows are testing the items specified
(0) Page 0
Service setting OSD display Description Value Default
Horizontal shift HSH 50Hz Horizontal center 0...63 35
Horizontal shift HSH-60 60Hz Horizontal center 0...63 30
EW Width EWW 50Hz EW Width 0...63 50
EW Width EWW-60 60Hz EW Width 0...63 50
Vertical Slope VSL 50Hz Vertical Slope 0...63 30
Vertical Slope VSL-60 60Hz Vertical Slope 0...63 30
Vertical Shift VSH 50Hz Vertical Shift 0...63 35
Vertical Shift VSH-60 60Hz Vertical Shift 0...63 35
Vertical Amplitude VAM 50Hz Vertical Amplitude 0...63 25
Vertical Amplitude VAM-60 60Hz Vertical Amplitude 0...63 25
S-correction SC 50Hz S-correction 0...63 20
S-correction SC-60 60Hz S-correction 0...63 20
EN 11 4. 3P66 Service Modes
(1) Page 1
Service setting OSD display Description Value Default
EW parabola/width PW 50Hz EW parabola/width 0...63 40
EW parabola/width PW-60 60Hz EW parabola/width 0...63 40
EW trapezium TC 50Hz EW trapezium 0...63 25
EW trapezium TC-60 60Hz EW trapezium 0...63 25
Upper corner parabola UCP 50Hz Upper corner parabola 0...63 40
Upper corner parabola UCP-60 60Hz Upper corner parabola 0...63 40
Lower corner parabola LCP 50Hz Lower corner parabola 0...63 42
Lower corner parabola LCP-60 60Hz Lower corner parabola 0...63 42
Horizontal parallelogram HPAR 50Hz Horizontal parallelogram 0...63 28
Horizontal parallelogram HPAR-60 60Hz Horizontal parallelogram 0...63 28
Horizontal bow HBOW 50Hz Horizontal bow 0...63 35
Horizontal bow HBOW-60 60Hz Horizontal bow 0...63 35
(2) Page 2
Service setting OSD display Description Value Default
Black level offset C BLC Common course black level offset 0...63 7
Black level offset R BLR Fine black level offset R 0...63 33
Black level offset G BLG Fine black level offset G 0...63 35
Black level offset B BLB Fine black level offset B 0...63 36
White point R WPR White point R 0...63 42
White point G WPG White point G 0...63 31
White point B WPB White point B 0...63 48
Service Modes 3P66 4. EN 12
(3) Page 3
Service setting OSD display Description Value Default
AGC Take over AGC AGC Take-over 0...63 20
VG2 VG2 Adjustment Vg2 voltage 0...63 25
(4) Page 4
Service setting OSD display Description Value Default
Speech treble S-TR Speech treble 0...63 24
Speech bass S-BA Speech bass 0...63 42
Music treble M-TR Music treble 0...63 42
Musia bass M-BA Music bass 0...63 48
Theatre treble T-TR Theatre treble 0...63 32
Theatre bass T-BA Theatre bass 0...63 48
AV curve offset AV-OF AV curve offset compare TV -31...+32 -3
Volume curve V-05 0-5 Volume curve 0...81 40
Volume curve V-10 5-10 Volume curve 0...81 55
Volume curve V-20 10-20Volume curve 0...81 63
Volume curve V-30 20-30Volume curve 0...81 67
Volume curve V-40 30-40Volume curve 0...81 69
Volume curve V-50 40-50Volume curve 0...81 70
Volume curve V-63 50-63Volume curve 0...81 80
EN 13 4. 3P66 Service Modes
(5) Page 5
Service setting OSD display Description Value Default
Soft brightness S-BRI Soft brightness 0...63 35
Soft color S-COL Soft color 0...63 25
Soft contrast S-CON Soft contrast 0...63 30
Soft sharpness S-SHA Soft sharpness 0...63 35
Nature brightness N-BRI Nature brightness 0...63 35
Nature color N-COL Nature color 0...63 25
Nature contrast N-CON Nature contrast 0...63 40
Nature sharpness N-SHA Nature sharpness 0...63 60
Rich brightness R-BRI Rich brightness 0...63 40
Rich color R-COL Rich color 0...63 30
Rich contrast R-CON Rich contrast 0...63 60
Rich sharpness R-SHA Rich sharpness 0...63 63
(6) Page 6
Service setting OSD Description Value Default
display
IFA IFB IFC IF PLL demodulator 0: 58.75MHz 1
frequency setting 1: 45.75MHz
2: 38.90MHz
3: 38.00MHz
4: 33.40MHz
5: 33.90MHz
AGC Speed A SPD AGC Speed 0..3 1
Noise reduce NR Noise reduce(effect 0: OFF 0
when reopen TV) 1: ON
Service Modes 3P66 4. EN 14
BKS&BSD Register BKS BKS&BSD Register BKS(Black stretch switch): 1
setting
0:off 1:on
BSD(Black stretch depth):
0: 15 IRE 1: 30 IRE
BKS=1(default)
0: BSD=0
1: BSD=1
Blue screen BB Blue screen(effect 0: No blue screen 1
when reopen TV) 1: blue screen
Video mute V-M Video mute 0: No black screen when
switch off
1: black screen when
switch off
3P66 or 5P66 3 or 5 3P66 or 5P66 0: 3P66 0
selection selection(AV switch ) 1: 5P66
AV POC Setting A-POC AV POC Setting 0: POC=0 1
1: POC depend on IFI
TV POC Setting T-POC TV POC Setting 0: POC depend on LOCK
or SL 1
1: POC depend on LOCK
or IFI
2: POC depend on LOCK
or SL or IFI
Blue screen condition BLUE Blue screen 0: depend on program
condition 1: AV depend on IFI 1
TV depend on IFI or SL
Switch off condition OFF Switch off condition 0: depend on program 0
1: AV depend on IFI
TV depend on IFI and SL
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