SERVICE MANUAL MODEL: 21TS1020 CHASSIS: 3P66SN

Transcription

1 SERVICE MANUAL MODEL: 2TS2 CHASSIS: 3P66SN

2 EN. 3P66 Technical Specifications, Connections, and Chassis Overview. 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...technical Specifications Chassis 3P66A 3P66E(RCAMODE) 3P66E(SCART MODE) 3P66S CRT Size 4"~2" 4"~2" 4"~2" 4''-2'' Main IC. 4/2RF:TDA5 2Slim:TDA35 4/2RF:TDA6 2Slim:TDA36 4/2RF:TDA6 2Slim:TDA36 TDA45 System Main PCB Size (mm) Color Standard Sound Receiver System (AV) Power Source Power Standby Maximum Power PRESET CHANNEL TUNER TYPE 34X246 34X246 34X246 34X246 PAL PAL/SECAM PAL/SECAM NTSC-M/PAL-M/N BG/DK/I BG/DK/I BG/DK/I M,N PAL/NTSC PAL/SECAM/NTSC PAL/SECAM/NTSC PAL/NTSC AC-24V 5/6Hz AC-24V 5/6Hz AC-24V 5/6Hz AC-24V 5/6Hz <3W < 3W < 3W <3W 4"6W;2" REAL FLAT CRT 8W;2"SLIM CRT W FLAT CRT 8W;2"SLIM CRT W FLAT CRT 8W;2"SLIM CRT W CH FS FS FS FS 4"7W;2" REAL FLAT CRT 9W;2"SLIM CRT 5W Antenna InpuT 75 Ohm(Unbalance) 75 Ohm(Unbalance) 75 Ohm(Unbalance) 75 Ohm(Unbalance) Picture COM.FILTER Double Window Progressive Scan Freeze zoom SVM Screen saver Blue Back Noise Reduction YES YES YES YES NO NO NO No Pictures effect: Standard,soft,rich,user Standard,soft,rich,user Standard,soft,rich,user Standard,Soft,Rich, User Nicam/A2 Color Temperature Black Extend (with AV STEREO) YES YES YES YES Tone Control surround MTS ( with AV STEREO ) NO NO NO OPTION Tone Control surround AV STEREO YES YES YES YES SOUND Tone Control surround MONO Audio Output Power ( MAX ) 2W+2W 2W+2W 2W+2W 5W+5W

3 Technical Specifications, Connections, and Chassis Overview 3P66. EN 2 Subwoofer Out Mute sounds effect YES YES YES YES No NO NO NO Features No signal auto standby Timer Off/On Sleep Timer Rename channel Favorite channel Biological Clock Calendar Program prearrange Child Lock Quick view Hotel mode Clock Game CCD V-Chip High gain tuner 5 MIN 5 MIN 5 MIN 5Min YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO YES NO NO NO YES Customer Band Name (OSD) Mode Teletext Pages X26 Packet OSD Language ENGLISH, RANCAIS,Portuguese,T URKEY,ARABIC,FARSI, RUSSIA,SPAIN,THAI,VI ETNAM ENGLISH, ENGLISH, FRANCAIS,Portuguese, TURKEY,ARABIC,FAR SI,RUSSIA,SPAIN,THAI,VIETNAM FRANCAIS,Portuguese, TURKEY,ARABIC,FAR SI,RUSSIA,SPAIN,THAI,VIETNAM English,French,Portuguese,Spanis h RCA Jack SCART YES YES NO YES NO NO YES NO AV In-Front Terminal s AV Input-Rear AV Output YES YES YES YES Certification Other earphone YUV S-Video In UL CB CE/EMC Handset Option feature cost YES YES NO YES YES YES YES YES YES(OPTION) YES(OPTION) YES(OPTION) NO RC3 RC3 RC3 RC3 Applicable Cabinet 4NK,4NX,4NZ,4NI,4NS,4N3,4N,4N2,4N7,2NX,2NZ,2T5,2N 5,2NK,2NI,2TN,2TI,2T5,2N5,2NS,2N3,2T3,2N,2T,2N2,2 N7,2T7,2NC,2TOC,2T9,2N9,2N,2T,2D93,2T,2U,2D, 2D88,2U,2U6,2N2,2T2,2U2

4 EN 3. 3P66 Technical Specifications, Connections, and Chassis Overview.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 Cable Television Network 75 ANT Plug the aerial or cable network input cable to the 75 coaxial socket on the rear of the television. Front(or side)audio/video Input(option) SOCKETS VIDEO RIGHT LEFT LEFT RIGHT or VIDEO AV2 IN AV2 IN VCR V V Decoder/ video game device VIDEO L L Video disc player LEFT R R Camcorder RIGHT Satellite receiver

5 Technical Specifications, Connections, and Chassis Overview 3P66. EN 4 STEREO AV &YUV AV OUT AV IN YCbCr IN VIDEO VIDEO Y LEFT LEFT Cb 75 ANT RIGHT RIGHT Cr Cable Television Network AV IN V V VCR VIDEO L L LEFT R R Decoder/ video game device RIGHT Video disc player YCbCr IN AV IN Y Y Y VIDEO Cb Cb Cr Cr Camcorder Cb LEFT L L Cr RIGHT R R Satellite receiver AV OUT TV V V VIDEO L L Amplifier LEFT RIGHT R R VCR

6 EN 5. 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. 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. 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..

7 .3. ChassisOverview Technical Specifications, Connections, and Chassis Overview 3P66. EN 6 CRT PANEL MAIN CHASSIS PANEL POWER SUPPLY LINE DEFLECTION FRAME DEFLECTION TUNER IF AV I/O AUDIO / VIDEO VIDEO IF SOUND IF CPU CONTROL AUDIO AMPLIFIER

8 EN P66 Safety Instructions 2.Safety Instructions 2.. 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 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 Unplug the TV product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning 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 Do not insert liquids or foreign object. Penetration of liquids or foreign objects could result in fire or electrical shock 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 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 Avoid dusty places, since accumulated dust inside the chassis may cause failure of the TV when in high humidity environment Do not place the TV near water. For example, a bathroom, a beach, etc. 2.. Do not obstruct the ventilation openings of the equipment with items such as newspapers, tablecloth, etc. 2.. Do not place the TV on a carpet, sofa or bedding Keep the TV away from heat sources such as radiators, heaters, stoves and other heat generating products Do not place the TV in a "built-in" enclosure, unless proper ventilation is provided Do not place flower vases, pots, cups, cosmetics, liquids such as water, etc on or around the TV Choose a place where light (artificial or sunlight) does not shine directly on the screen 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 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 For added protection for this TV during a lightning storm, unplug it from the wall outlet and disconnect the antenna or cable system 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 To prevent fire, never place any type of candle or naked flames on the top or near the TV Avoid any kind of impact to the TV. Be special careful not to damage the screen face If the TV is to remain unused for a period of time. Turn off and unplug it from the wall outlet.

9 MechanicalInstructions 3P66 3. EN 8

10 EN P66 Service Modes 4. 3P66SN Service Modes 4.. 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 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 VG2 adjust mode Two methods to adjust VG2 voltage: () OSD mode: This mode is for sets with AKB function(page "VG2-MODE"is set to 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 "VG2-MODE" is set to 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) 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" RF AGC adjustment a. Receive 57.25MHz, 6dB color bar signal. b. Enter factory mode and press digital key "3". c. Measure tuner AGC point voltage, and adjust AGC item till the voltage is 2.7V.V(or till picture noise just disappears) Usually the AGC value is fixed to FOCUS adjudtment a. Receive cross-hatch pattern signal. b. Set picture to"rich" mode. c. Adjust FBT's FOCUS knob till picture is clear 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 "3" 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 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 BTSC alignment method(3p66sn) a. FLUKE 542 trasmitting colour bar, Signal frequency at 6.25MHZ, Signal strength at 8dB, Test 3 under BTSC settings( sound frequency at 3HZ) Input signal to 3P66SN Latam RF, turn on TV.

11 Service Modes 3P66 4. EN b. After TV operate normally, use 3P66SN Latam RC to perform Auto-search or select CH3. c. Enter factory mode (exact details refer to 3P66SN alignement instruction), use Multimeter FLUKE87Ⅲto measure at J852 to achieve a reading of.25.2 Vrms. d. Enter factory mode page 7, in the selection of BTSC-L, use multimeter FLUKE 87 Ⅲ to measure R86(CHL) and R862(CHR) ( effective L, R audio output from TDA958 BTSC demodulation), Adjust BTSC-L to achieve CHR, CHL at.5.2 Vrms. e. FLUKE 542 transmitting colour bar, Signal frequency at 6.25MHZ, Signal strength at 8dB, Item Test under BTSC, BTSC-MOD to set Stereo. f. Use Dual Trace Oscilloscope, CH measures R86 (CHL), CH2 measures R862(CHR).Enter Factory mode page 7, Select Stereo in BTSC-MODE, adjust BTSC-A and BTSC-A2, to achieve the clearest, cleanest, least interdependent waveforms of 3Hz and 3kHz. Also adjust BTSC-TC, to achieve the best waveform of 3Hz and 3kHz. (Suggest default value of 4) g. Reduce the signal strength of FLUKE 542 to 3dB, transmitting colour bar, Signal frequency at 6.25MHZ, BTSC-Stereo, SAP-MOD, audio frequency at L=3Hz, 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.. Factories parameters of the adjustment Debugging items and directive from the page " " to page" 5" consists of 6 items, and a "predetermined adjustment page", Belows are testing the items specified: () Page Service setting OSD display Description Value Default Horizontal shift HSH 5Hz Horizontal center Horizontal shift HSH-6 6Hz Horizontal center 63 3 EW Width EWW 5Hz EW Width 63 5 EW Width EWW-6 6Hz EW Width 63 5 Vertical Slope VSL 5Hz Vertical Slope 63 3 Vertical Slope VSL-6 6Hz Vertical Slope 63 3 Vertical Shift VSH 5Hz Vertical Shift Vertical Shift VSH-6 6Hz Vertical Shift Vertical Amplitude VAM 5Hz Vertical Amplitude Vertical Amplitude VAM-6 6Hz Vertical Amplitude S-correction SC 5Hz S-correction 63 2 S-correction SC-6 6Hz S-correction 63 2

12 EN 4. 3P66 Service Modes () Page Service setting OSD display Description Value Default EW parabola/width PW 5Hz EW parabola/width 63 4 EW parabola/width PW-6 6Hz EW parabola/width 63 4 EW trapezium TC 5Hz EW trapezium EW trapezium TC-6 6Hz EW trapezium Upper corner parabola UCP 5Hz Upper corner parabola 63 4 Upper corner parabola UCP-6 6Hz Upper corner parabola 63 4 Lower corner parabola LCP 5Hz Lower corner parabola Lower corner parabola LCP-6 6Hz Lower corner parabola Horizontal parallelogram HPAR 5Hz Horizontal parallelogram Horizontal parallelogram HPAR-6 6Hz Horizontal parallelogram Horizontal bow HBOW 5Hz Horizontal bow Horizontal bow HBOW-6 6Hz Horizontal bow (2) Page 2 Service setting OSD display Description Value Default Black level offset C BLC Common course black level offset 63 7 Black level offset R BLR Fine black level offset R Black level offset G BLG Fine black level offset G Black level offset B BLB Fine black level offset B White point R WPR White point R White point G WPG White point G 63 3 White point B WPB White point B 63 48

13 Service Modes 3P66 4. EN 2 (3) Page 3 Service setting OSD display Description Value Default AGC Take over AGC AGC Take-over 63 2 VG2 VG2 Adjustment Vg2 voltage (4) Page 4 Service setting OSD display Description Value Default Speech treble S-TR Speech treble Speech bass S-BA Speech bass Music treble M-TR Music treble Musia bass M-BA Music bass Theatre treble T-TR Theatre treble Theatre bass T-BA Theatre bass AV curve offset AV-OF AV curve offset compare TV Volume curve V-5-5 Volume curve 8 4 Volume curve V- 5- Volume curve 8 55 Volume curve V-2-2Volume curve 8 63 Volume curve V-3 2-3Volume curve 8 67 Volume curve V-4 3-4Volume curve 8 69 Volume curve V-5 4-5Volume curve 8 7 Volume curve V Volume curve 8 8

14 EN P66 Service Modes (5) Page 5 Service setting OSD display Description Value Default Soft brightness S-BRI Soft brightness Soft color S-COL Soft color Soft contrast S-CON Soft contrast 63 3 Soft sharpness S-SHA Soft sharpness Nature brightness N-BRI Nature brightness Nature color N-COL Nature color Nature contrast N-CON Nature contrast 63 4 Nature sharpness N-SHA Nature sharpness 63 6 Rich brightness R-BRI Rich brightness 63 4 Rich color R-COL Rich color 63 3 Rich contrast R-CON Rich contrast 63 6 Rich sharpness R-SHA Rich sharpness (6) Page 6 Service setting OSD display Description Value Default IFA IFB IFC IF PLL demodulator frequency setting : 58.75MHz : 45.75MHz 2: 38.9MHz 3: 38.MHz 4: 33.4MHz 5: 33.9MHz AGC Speed A SPD AGC Speed..3 Noise reduce NR Noise reduce(effect when reopen TV) : OFF : ON

15 Service Modes 3P66 4. EN 4 BKS&BSD Register BKS BKS&BSD Register setting BKS(Black stretch switch): :off :on BSD(Black stretch depth): : 5 IRE : 3 IRE BKS=(default) : BSD= : BSD= Blue screen B B Blue screen(effect when reopen TV) : No blue screen : blue screen Video mute V-M Video mute : No black screen when switch off : black screen when switch off 3P66 or 5P66 selection 3 or 5 3P66 or 5P66 selection(av switch ) : 3P66 : 5P66 AV POC Setting A-POC AV POC Setting : POC= : POC depend on IFI TV POC Setting T-POC TV POC Setting : POC depend on LOCK or SL : POC depend on LOCK or IFI 2: POC depend on LOCK or SL or IFI Blue screen condition BLUE Blue screen condition : depend on program : AV depend on IFI TV depend on IFI or SL Switch off condition OFF Switch off condition : depend on program : AV depend on IFI TV depend on IFI and SL VG2 MODE VG2-Mode VG2 MODE : light Line mode : character mode VSD-Bri VSD-Bri CC Delay DELAY CC Delay 27 2

16 EN P66 Service Modes (7) Page 7 Service setting OSD display Description Value Default BTSC-MODE MODE BTSC mode force selection 2 BTSC-ST ST Stereo noise limit 5 5 BTSC-SP SP SAP noise limit 5 4 BTSC-LI LI Sound input level 5 9 BTSC-A A Separate 3 5 BTSC-A2 A2 Separate 3 2 BTSC-TC TC Time constant 7 4 BTSC-STS STS Stereo level switch / BTSC-DETECT DETECT BTSC detect time ST-TIMER ST-TIMER Stereo detect count 255 MONO-TIMER M-TIMER Mono detect count 255 (8) Page 8 Service setting OSD display Description Value Default Bass and Treble BAS-TRE Bass and Treble display in sound menu Balance BLANCE Balance display in sound menu Disco Gain DISG Gain selection of DISCO COFF COF Coring of SVM specification : no display : display : no display : display : normal gain : gain 6dB :coring according to specification : coring off Cap bank switch for DCXO PAL-M Cap bank switch for DCXO DCXO NTSC DCXO_CAP setting PM-M DCXO PAL-M DCXO_CAP setting

17 Service Modes 3P66 4. EN 6 PAL-N Cap bank switch for DCXO PAL-N DCXO PAL-N DCXO_CAP setting 3 2 of volume VOL VOL- sound curve 63 3 AKB AKB Black current stabilize : active : not active DSA Register DSA Dynamic skin tone : 23 degree angle : 7 degree OSD Position O-V5 5Hz OSD vertical position OSD Position O-V6 6Hz OSD vertical position OSD Position O-HOR OSD horizontal position Init NVM INIT Initialize / (9) Page 9 Service setting OSD display Description Value Default AV AV AV switch : no AV : have AV S-VIDEO S-VIDEO S-VIDEO switch : no s-video : have s-video YUV YUV YUV switch : no YUV : have YUV AV2 AV2 AV2 switch : no AV2 : have AV2 MONO IC MONO TV MONO selection : stereo : mono 2:mono(no MTS) 3:no452,have MTS(5P66)

18 EN P66 Service Modes Standly remember R-POWER Power station :Direct bootstrap : Standby 2: remember Last state Logo LOGO Logo switch : no LOGO : have LOGO Type of LOGO TYPE Type of LOGO :normal LOGO :Continental Electric 2 8th key of board KEY8 8th key of board option Vertical linearity 5VLIN 5Hz Vertical linearity Vertical linearity 6VLIN 6Hz Vertical linearity : no 8 th mute key :have 8 th mute key VCS 5VSCR 5Hz VSCR VCS 6VCSR 6Hz VSCR () Page Service setting OSD display Description Value Default Sub-brightness SUB-BRI Sub-brightness 63 4 Max-brightness MAX-BRI Max-brightness Sub-contrast SUB-CON Sub-contrast 63 5 Max-contrast MAX-CON Max-contrast Max-colour MAX-COL Max-colour No signal EWW N-EWW No signal EWW ESPANA option ESP Espanish option : no : have FRANCE option FRA Franch option : no : have PORTUGAL option POR Po rtuguese option : no : have

19 Service Modes 3P66 4. EN 8 Brightness of black balance Contrastness of black balance BT Brightness of black balance (TV and YUV) CT Contrastness of black balance(tv and YUV) Brightness of white balance WBT Brightness of white balance(tv and YUV) Contrastness of white Balance WCT Contrastness of white balance(tv and YUV) VX VX-VAM VX or VAM active for VX 6:9 VX NORMAL and VX EXPAND : VX : VAM () Page Service setting OSD display Description Value Default Peak white PWL Peak white limiting 5 5 Cathode HDOL Cathode voltage 5 Offset IF demodulator OIF Correction for DC offset in the IF-PLL Mono active MONO-PIN Mono active : L&R : Fix R FBC&FBC register FBC FBC: Fixed beam current switch off FBC: Fixed beam current during switch :FBC= FBC= :FBC= FBC= 2:FBC= FBC= 3:FBC= FBC= PAL-M OF YD-YD3 SETTING P-YD PAL-M OF Y DELAY 5 9 NTSC OF YD-YD3 SETTING N-YD NTSC OF Y DELAY 5 8 AV OF YD-YD3 SETTING A-YD AV OF Y DELAY 5

20 EN P66 Service Modes DMPH register DMPH DMPH : not active : active (MTS) (nomts) CBAF&CBAF CBAF- Bass frequency selection CTRF&CTRF CRTF- Treble frequency selection CB register CB Chroma bandpass center frequency : Fsc :. F sc MTXF&MUS&MAT MATRIX :NTSC-Japanes eorpalmatrix /3/5/7: PALmatrix 4:NTSC-Japanese matrix 6:NTSC-USA matrix FMWB register FMWB : FMWB= : FMWB= 2: continue detect FML mode 3: detect FML mode in a minute HCO register HCO EHT tracking mode :EHT trackingonly on vertical :EHT tracking on vertical&ew / (2) Page 2 Service setting OSD display Description Value Default AGN AGN gain FM demodulator : normal : +6dB : PAL AGN= NTSC AGN= : PAL AGN= NTSC AGN= 2: PAL AGN= NTSC AGN= 3: PAL AGN= NTSC AGN= ( NO MTS) (MTS)

21 Service Modes 3P66 4. EN 2 AGNE&AGNE AGNE Extended gain settings for FM demodulator FMWS&FMWS2 FMWS Window select for FM demodulator : normal : +3.8dB 2: -6dB 3: -3dB : khz : 225kHz 2: 45kHz 3: 9kHz BPB2 BPB2 Bypass sound bandpass filter section 2 : active : bypass FFI FF Fast filter IF-PLL : normal time : increased time COR&COR2 A-COR Video dependent coring For AV COR&COR2 T-COR Video dependent coring For TV : off : and 2 IRE 2: and 4 IRE 3: and IRE : off : and 2 IRE 2: and 4 IRE 3: and IRE 2 3 PF&PF PEAK Peaking center b-b 56 frequency anddelay : 2.7MHz 9ns : 3.MHz 6ns 2: 3.5MHz 43ns 3: 4.MHz 25ns FOA&FOB FOA-FOB Phase time constant :normal :slow :OSDmode :fast DSG of TV TV -DSG Gain from audio inputs to audio outputs(tv) DSG of AV AV -DSG Gain from audio inputs to audio outputs(av) bit,bit NTSC PEAK FQ bit2,bit3 PAL PEAK FQ bit4,bit5 AV PEAK FQ :FOA= FOB= AV FOA= FOB= TV :FOA= FOB= 2:FOA= FOB= : db : +6dB : db : +6dB LOGO position LOGO-UD LOGO position 63

22 EN P66 Service Modes Menu position horizontal MENU-H Menu horizontal position DSGLS register DSGLS Extra gainselection : db loudspeaker outputs : +6dB (3) Page 3 Service setting OSD display Description Value Default Slicing level SSL Slicing level for horizontal sync separate Slicing level FSL Forced slicing level for vertical sync AAS&AAS AAS Black area to switch off the black strech : 5% : 3% :slicing level dependent no noise detector :fixed slicing level of 6% : 2% : 2% 2: 6% 3: 8% 2 SOC&SOC SOC Soft clipping level : %above PWL : 5%above PWL : %above PWL : soft clipping off 3 2 MUTE PIN logic M-MUTE MUTE PIN logic : for 7266SA mute L no mute H : for 252 mute H no mute L HBL HBL RGB blanking mode :normal blanking :wide blanking WBF WBF Timing of wide blank (Lift wide blanking) WBR WBR Timing of wide blank (Right wide blanking) : 3.5us 5: 5.9us : 7.8us 5:.2us

23 Service Modes 3P66 4. EN 22 (4) Page 4 Service setting OSD display Description Value Default NVM version C Char NVM version C Char NVM version C2 Char NVM version Y Year 8 NVM version M Month 2 NVM version D Day 3 XDT XDT X-ray protection : hardware : software XDT SW active XDT-OFFON XDT SW active : not active : active SW detect times XDT-TIME SW detect times 255 STB setting STB Standby : standby : normal EVG register EVG Enable vertical : not active guard : active CHSE&CHSE register CHSE The CHSE vaule of strong signal : -34dB : -37dB 2: -4dB 3: -46dB Auto low signal identify CHSE ON The switch of Weak signal identify : turn off : turn on (5) Page 5 Service setting OSD display Description Value Default Black balance of Y-BR Black balance of YUV YUV (Red)

24 EN P66 Service Modes Black balance of YUV Y-BG Black balance of YUV (Green) Black balance of YUV Y-BB Black balance of YUV (Blue) White balance of YUV Y-WR Black balance of YUV (RED) Black balance of YUV Y-WG Black balance of YUV (Green) Black balance of YUV Y-WB Black balance of YUV (Blue) White Balance auto-adjustment White CPU CPU Sub address NVM NVM Sub Balance Slave (TDA35,36,256,45,265 Slave address Item address / TDA5,TDA6) address BLOR x8a x7 / x9 xa x3b BLO G x8a x 8 / x a xa x3 c BLO B x8a x 6 / x b WPR x8a x 2 / x2 WPG x8a x2/ x 3 WPB x8a x22/ x 4 xa xa xa xa x3 d x3 e x3 f x4

25 Block Diagram Chassis 3P66 5. EN 24

26 Circuit Diagrams Circuit Diagrams and PWB Layouts 3P66 6. EN 25

27 Main PCB (Top Side) N Circuit Diagrams and PWB Layouts 3P66 6. E 26

28 Circuit Diagrams and PWB Layouts Main PCB (Bottom Side) 3P66 6. EN 27

29 EN P66 IC Data Sheet IC6(POWER SUPPLY)STR-W6554A Block Diagram:

30 IC(OTP SIGNAL PROCESSOR FOR CRT TV)TDA6PS N3 Block Diagram: IC Data Sheet 3P66 7. EN 29

31 EN P66 IC Data Sheet

32 Troubleshooting 3P66 8. EN 3 8.Troubleshooting The following problems do not always indicate a hardware failure. Therefore, please use the troubleshooting guide below before calling for repair service. If, after following the guide none of the remedies work, unplug the TV and call for service. Problem Checks and Adjustments TV will not turn on No picture, no sound No sound, picture OK Spots on the screen (Snow) Poor reception of broadcast channels VCR Make sure the power cord is plugged in, then press POWER button. Check battery in the remote control. (Maybe batteries are dead.) Ensure the TV power is ON. Check antenna/ cable connections. Try different channel. Maybe sound is muted. Try pressing VOL+ button is not set to minimum. Try another channel. Check the AV cables for disconnection. Maybe the TV is being affected by interference from automobiles, trains, high-voltage transmission lines, neon signs or another sources of interference. Try redirecting or relocating your antenna to reduce the affects of the interference. Change channels to confirm if the symptom is still present. Try another channel. Check antenna connections. If using VCR, check TV/VCR button. Adjust fine tuning control. Probably local interference, such as an appliance. When the VCR test signal (TSG) is received, the lower side of the test pattern is distorted as shown in the figure. This is not a malfunction and the playback picture is not influenced by it. Cannot select a certain channel That channel may be locked out with SKIP CHANNEL function. Remote Control does not operate The picture is doubled or tripled (GHOST) Degraded colours or tints Check for any obstacle between the remote control and the remote control sensor window. Maybe batteries are dead. Try replacing batteries with new ones. Check for incorrect battery orientation. Please change the direction, height or positionof the antenna. Reflections from building or mountains might cause this phenomenon. A highly directional antenna may improve the reception. Check whether all the picture adjustments have been properly performed. Enter into the (Picture mode) inside the menu to select a different picture set-up.