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TCL SERVICE MANUAL
M28L(G2)
1. Caution.....................................................................2 2. Specification...............................................................6 3. BOM List ........................... .........................................13 4. Alignment Procedure....................................................31 5. Block Diagram............................................................43 6. Schematic Diagram......................................................44 7. PCB Layout................................................................45 8. Explode View Diagram...................................................46
This manual is the latest at the time of printing, and does not include the modification which may be made after the printing, by the constant improvement of product.
CAUTION: Use of controls, adjustments or procedures other than those specified herein may result in hazardous radiation exposure. CA UTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SER VICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN.
The lighting flash with arrowhead symbol, with an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous 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.
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. 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. 2. 3. 4. 5. 6. 7. 8. 9. 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. Do not overload wall outlets and extension cords as this can result in fire or electric shock. 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. 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. Never push objects of any kind into this television set through cabinet slots as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the television set. 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. If liquid has been spilled into the television set, unplug this television set from the wall outlet and refer servicing to qualified service personnel. Do not subject your television set to impact of any kind. Be particularly careful not to damage the picture tube surface. 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 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 a built-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.
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE ANTENNA LEAD- IN WIRE
GROUND CLAMP ANTENNA DISCHARGE UNIT (NEC SECTION 810-20)
ELECTRIC SERVICE EQUIPMENT
GROUNDING CONDUCTORS (NEC SECTION 810-21)
GROUND CLAMPS NEC-NATIONAL ELECTRICAL CODE POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250. PART H)
15.2. Note to CATV system installer : (Only for the television set with CATV reception) This reminder is provided to call the CATV system installer s 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. 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.
17.
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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. 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. 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 off and unplug the television set from the wall outlet.
19.
20.
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.
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PFS (Product Functional Specification) Date: ProductView......: Report by............: Linda Wen Specs / Products MasterData Customer Id Version BOM No Brand Reception -Tuning - presets/channels 100 125 200 -Tuning - technology PLL VST -Tuning - Indication ---Freq Bands UVSH Full-Cable -IF Freq 38MHz 38.9MHz 45.75MHz -TV Systems Off Air/Cable NTSC M (3.58 - 4.5) NTSC (4.43 - 5.5) NTSC (4.43 - 6.5) NTSC 3.58 NTSC 4.43 PAL B/G PAL D/K PAL I SECAM B/G SECAM D/K -Add Systems Ext In NTSC 3.58 NTSC 4.43 NTSC Play Back PAL 60 -TV Systems Multi NTSC PAL -Sound Systems AV Stereo NICAM German Stereo American Stereo Korean Stereo Picture - Processing -Scan Standard -Scan Modes 4:3 4:3 Expand -Wide Screen Switching -Combfilter -Picture Control Brightness Colour/Hue/ tint Contrast Color Temperature Sharpness scan velocity modulation LTI / CTI Smart Pict. 4 Modes Smart Pict. 5 Modes Multiplicate picture scan mode -Pict Enhancement Active Control (without LNA) Black Stretch dynamic skin -Pict Noise Reduction NR Page 1
M28L(G2)
TEDELEX TRADING (PTY) LTD. 0.1 04-D276BH-SA60 SANSUI
x
x x X
x
X
x x x
x x
x x
x x
x x x x
x
x
PFS (Product Functional Specification) Date: ProductView......: Report by............: Linda Wen Specs / Products Picture - Display -Display Type DV - CRT - Normal Flat DV-CRT-Pure Flat DV - CRT - Super Flat -Screen Format 4:3 Expand 4:3 16:9 -Size(Visual)" - size/vis. cm 14(13V) - 37/34 cm 21(20V) - 55/51cm 25(00v) - 00/00cm 29(27v) - 72/68cm 34(00v) - 00/00cm -Deflection System (CRT only) 1 Fh 2 Fh -Tube Technology (CRT only) Iron Black Matrix Real Flat -CRT Defl 090 degr 100 degr 110 degr 500 degr -CRT Gun Stand Gun -CRT Magn field Neutral S Hemisphere North-Neutral -Resolution -Coating (only for D.V. sets) -White Point Sound -Leaflet Power 01W 02W 04W 06W 10W 12W 20W -RMS Power Intern 1x1W 2x1W 2x2W 2x3W 2x4W 2x5W 2X6W 2X10W -RMS Power Extern -Surround Sound -Sound Features AVL Mute Smart Sound (4 modes) -Sound Control Balance Bass Bass Boost Smart Sound 4 Modes Smart Sound 5 Modes Treble Treble Boost Volume Sound - Speakers -Speaker configuration 2x1 Page 2
M28L(G2)
x
x
x
x
x x
x
x
x
x
21"
x
x
x
PFS (Product Functional Specification) Date: ProductView......: Report by............: Linda Wen Specs / Products -Speakers used Normal Range Full Range User Interface -Interface Name Full interface -Voice Control -Menu Cursor Control -Menu Colours -Menu Languages Arabic Chinese - Simplified Chinese - Traditional English Russian Malay Thai -Record Select - sources: -Special Features On/Off Timer Sleep timer Game Notebook Calendar Auto Standby Channel Copying Channel Naming Channel Lock Favorite Channel Manual Skip channel navigation Personal Zapping Signal Strength Indicator V-chip with Smart Lock Hotel Mode Recall AT High Sensitive -Operational Features Alternate Channel Surf -PP Features One PP for all channels -Tuning / Install Features Aut Cable/Ant. Select Auto Channel Prog Auto Store Factory Mode Fine Tuning Language Selection Manual Search/Store Service Mode -Clock/Timer Functions Sleep timer Alarm Timer Crystal Clock Real Clock Biological Clock -Local Controls Front Channel +Mains Switch (Flush) Volume +TV/AV Auto search menu -Local Controls Top Channel +Volume +TV/AV menu -Indicators - screen Page 3
M28L(G2)
x
X
X
X
x x x x x x x
x
x
x x x x x x x x x x
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x x x x
PFS (Product Functional Specification) Date: ProductView......: Report by............: Linda Wen Specs / Products -Indicators - front RC Recvd LED SB LED -Numb of Loc Cont (incl Mains) 5 7 -Number of Ind. (incl Mains) 1 -Local Controls (Old) Remote Control -Remote Control - scope TV -Remote Control - type Standard -Remote Control - typenr E F Q RC115 -Remote Control - features Connectors Rear -Scart RGB+Y/C+CVBS -Scart RGB+CVBS -Scart CVBS+Y/C -Component In (Y/U/V) Cinch Ext(1) -Component In (YPbPr) Cinch -In Y/C+Cinch(CVBS+St) 1x -In Y/C+Cinch(CVBS+Mo) -In Y/C+Cinch(St) -In BNC (CVBS) -In Cinch(CVBS+Mo) Ext(1) -In Cinch(CVBS+St) Ext2 -In VGA -Out Y/C+Cinch(CVBS+St) -Out Cinch(CVBS+St) 1x -Out Cinch(CVBS+Mo) 1x -Out Cinch Audio Stereo -Out Cinch Audio Mono -Out Cinch Dolby Surround -Out Cinch Subwoofer -Dig Audio Out -Loudspeakers -Control Busses -Feature Slot -ITV Smart Port -Terr. Antenna in 75 Ohms (IEC type) Guide + IR Blaster Jack Connectors Front -In Y/C + Cinch(CVBS+St) -In Y/C + Cinch(CVBS+Mo) -In Y/C + Cinch Stereo -In Cinch (CVBS + St) -In Cinch (CVBS+Mo) Yes -Headphone Out Mini-Jack 3.5mm -Feature Slot -Cinch A/V in Connectors Side -In Y/C + Cinch(CVBS+St) -In Y/C + Cinch Stereo -In Cinch (CVBS + St) Yes -In Cinch (CVBS + Mo) Yes Page 4
M28L(G2)
x x
x
x x
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PFS (Product Functional Specification) Date: ProductView......: Report by............: Linda Wen Specs / Products -Headphone Out Mini-Jack 3.5mm -Cinch A/V in -Cinch A/V out Connectors Top -In Cinch (CVBS + St) -Headphone Out Connectors Mechanical -Headphone -Cinch A/V in/out -Cinch Component -Cinch Y/C Styling -Cabinet Name -Configuration DAS Symm -Mechanics -Speaker Visibility Standard General -Segment Standard 4:3 -Chassis -Software Delivery Mode -Software Version -Mains Voltage 110V - 270V 90 - 260V 90-276 AutoV 160 - 260 V 230 - 240 V -Mains Frequency 50Hz -Type Mains Cord FlatPin(Non-Polarised) Australia / New Zealand Euro New Zealand VDE Power Consumption (P)TV in On Power Consumption SB in Watts Less than 1 Less than 3 Less than 6 Less than 10 Power Consumption Semi SB in W -Power in "ON" for -Power in Standby for -Power in "OFF" for -INDICATION on BACKCOVER Made-in in Family Sheet FCC/Elect Shock caution label Serial label Warning label on backcover -Channel National Org.-NO Final Equipment -Packaging - methods 2 Colour Printing Brown Carton White Carton -Documents and manuals Instruction Book (User Manual) Adbertising Brochure Extended Warranty Brochure Guarantee Doc Screen Sticker Approbation Labels Easy installation Guide Plastic Bag Page 5
M28L(G2)
21276
x
X
X M28L
X X
70W X
X X X X
x
X X X
PFS (Product Functional Specification) Date: ProductView......: Report by............: Linda Wen Specs / Products Warning label Warranty Card -Languages DFU Arabic English Local Integration Malay Thai -Cables Supplied -Antenna Supplied -Stand Supplied -Aux Equipm Supplied Batteries for RC (2 x AA) Miscellaneous -Approbation CB EMC -Tests -Local Integration PIP/POP -Type ---Features Digital Reception -Transmission -Profile/Level Digital Software -Services Digital Connections -Digital Rear Built-in Data System -Text Standard No Text -(Tele)text Features 1 Page text 10 Page text -Nbr bacgrnd page/Mem Size -Text Technology -Digital Data handling -Program Guide Built-in Clock/Timer -Type -Features Built-in Radio -Type Built-in PC display VGA XGA SVGA SXGA WVGA UXGA -PC Synch -PC Control Built-in TV display 50i 60i 100i 60P 75P Built-in Media Slots/ DVD driver -Type of Medium -Type of Deck -Version of Deck -Playback Formats -Copy Protection Compliance Phased Out Items -Tuner/Frontend -Sensitivity -CRT EHT -Lightning Protection -Account Page 6
M28L(G2) X
x
x
X X
PFS (Product Functional Specification) Date: ProductView......: Report by............: Linda Wen Specs / Products -XX(Radio Antenna in) -Non Volatile Memory -In Y/C + Cinch(CVBS+Mo) Version of deck
M28L(G2)
Page 7
Flowchart chart of alignment procedure for M28 chassis:
B+ adjustment Electrical properties checking for chassis White balance Adjustment Aging Adjustment of screen voltage and focus QC checking RF AGC adjustment
Sub-brightness Adjustment
Sub-color & Sub-tint adjustment
Pincushion and screen width adjustment
Screen center & size adjustment (PAL)
Screen center & size adjustment (NTSC)
ALIGNMENT PROCEDURE FOR M28 CHASSIS:
I) Adjustment of B+ voltage(for VR840 model only) 1. Apply 160-240(110-220)VAC( 5V) to mains power input, and Philips standard testing pattern to RF input. 2. Adjust VR840 in STANDARD mode until voltage at TP2 (B+) is 112V 0.5V. II) The alignment of RFAGC 1. Connect the detector shown below to collector of Q101. 2. Receive a grey scale signal with 70dB V amplitude. 3. Adjust RFAGC item until the output of the detector becomes 0.8Vpp
Collector of Q101
To CRO
1
) Adjustment of Sub-contrast, Sub-tint and Sub-color 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/Color-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 P-P as shown below. 4. Select COLC to adjust the sub-color 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/Color-bar (PAL signal) to the AV input, in STANDARD status. 7. Select COLP to adjust the sub-color by tuning the amplitude of "a", "b", "c" and "d" to the same.
a
b
c d
A
IV) 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 2nd dark bar of 8 level grey scales just can be seen. V) 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=274, y=280.(11500 K) 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=274, y=280. 4. Repeat step 2&3 until you can get the correct reading for both black and white sides. 5. Warm: x=291, y=300; Adjustment Item: WRCUT, WGCUT, WBCUT, WGDRV, WBDRV. 6. Cool : x=265, y=265; Adjustment Item: CRCUT, CGCUT, CBCUT, CGDRV, CBDRV. 7. DVD White Balance fine adjustment Item: UBK, VBK. VI) Adjustment of Pincushion and Picture Width (for pure flat model only) 1. Receive a crosshatch pattern. 2. Adjust VR1124 until the vertical line become straight. 3. Adjust VR1123 for horizontal size.
2
VII) Adjustment of Picture Geometry (PAL) 1. 2. 3. 4. 5. 6. Apply the crosshatch pattern (PAL signal) to the RF input, in STANDARD status. Select HPOS to adjust the Horizontal center. Select VP50 to adjust the Vertical center. Select HIT to adjust the Vertical amplitude. Select VLIN to adjust the vertical linearity. Select VSC to adjust the vertical S-correction.
XIII) Adjustment of Picture Geometry (NTSC) 1. 2. 3. 4. 5. 6. Apply the crosshatch pattern (NTSC signal) to the RF input, in STANDARD status. Select HPS to adjust the Horizontal center. Select VP60 to adjust the Vertical center. Select HITS to adjust the Vertical amplitude. Select VLIS to adjust the vertical linearity. Select VSS to adjust the vertical S-correction.
IX) Adjustment of OSD position 1. Enter D-mode and press key "1", then choose OSDH(OSDHS) item and adjust the OSD vertical position 50HZ(60HZ). 2. Enter D-mode and press key "NOTE", then choose the OSD1 item and adjust the OSD horizontal position(Volume bar, Picture bar, Half blue panel OSD). 3. Enter D-mode and press key "NOTE", then choose the OSD2 item and adjust the OSD horizontal position except OSD1 item. X) LOGO setting 1. Enter D-mode and press key "6", then choose FLG1 item and adjust. FLG1.2 sets at 1, logo works; FLG1.1 sets at 0, TCL logo works; sets at 1, Customer logo /OEM logo works; 2. Customer LOGO setting Enter D-mode and choose "MODE 2" MODE 2.2 sets at 1, NOTEBOOK works; Enter Customer Logo Font, max. 9 fonts are available in the first line. Press "Save". NOTEBOOK off. Choose OEMC item to set the color of customer logo font. Choose OEMH OEMV OEMVS items to set the position of customer logo. XI) D mode: 1. Press D-Mode ON/OFF key, and then you can enter the D-mode. 2. Press VOLUME DOWN key on the unit until the volume decrease to minimum level, then press the DISPLAY key on the remote handset (don't release the volume key) and you can enter D- mode. After enter D-mode you can adjust the setting according to the following procedure,
3
ITEM GROUP1 RB GB BB GD BD UBK VBK
Description KEY 0 R CUT OFF G CUT OFF B CUT OFF G DRIVE B DRIVE DVD U level adjustment DVD V level adjustment
Initial
0: (-22mV, Input DC) 8: 0mV F: (19mV, 2.75mV/dev) Bits 4-7 Don't use
GROUP2 HPOS/ HPS HIT/ HITS VP50 VP60 VLIN VLIS VSC VSS VBLK VCENP VCENN OSDH OSDHS GROUP 3 CNTX CNTN BRTX BRTN COLX COLN TNTX TNTN GROUP 4 BRTC COLC COLS COLP SCNT CNTC TNTC GROUP 5 ST3 SV3 ST4 SV4 SVD
KEY 1 Horizontal Position 50HZ Horizontal Position 60HZ Height 50Hz Height 60 Hz Vertical Position 50Hz Vertical Position 60HZ V Linearity 50Hz V Linearity 60hz VS Correction 50Hz VS Correction 60HZ V BLK Start / Stop V CENTERING 50Hz V CENTERING 60Hz OSD vertical position 50HZ OSD vertical position 60HZ KEY 3 CONTRAST MAX. CONTRAST MIN. BRIGHT MAX.(difference from center) BRIGHT MIN.(difference from center) COLOR MAX.(difference from center) COLOR MIN. TINT MAX.(difference from center) TINT MIN.(difference from center) KEY 4 BRIGHT CENTER COLOR CENTER NTSC COLOR CENTER SECAM COLOR CENTER PAL(shift data from COLC) SUB CONTRAST CONTRAST CENTER TINT CENTER KEY 5 SHARP CENTER 3.58NTSC TV SHARP CENTER 3.58NTSC VIDEO SHARP CENTER OTHER TV SHARP CENTER OTHER VIDEO SHARP CENTER DVD 4
ASSH SHPX SHPN GROUP 6 OPT 0 1 2 3 4 5 6 7 FLG0 0 1 2 3 4 5 6 7 FLG1 0 1 2 3 4 5 6 7 STBY 0 1 2 3 4 5 6 7 HD DELAY MODE0 0 1 2 3 4 5 6 7 MODE1
ASYMMETRY-SHARPNESS SHARP MAX.(difference from center) SHARP MIN.(difference from center) KEY 6 OPTION DATA D mode key 0: No use 1 :use 0:normal 1: mute sound when no sync in TV 0:NORMAL 1: mute video during change channel au gain 0:50khz 1: 25khz when no sync 1: AFT 0: no AFT AV change 1: mute 0: no mute sound Korea PAL50 BLINK function 1:enable 0:disable standby state 0: high standby 1: low standby OVER MOD N Buzz Cancel SLO f0 shift hotel mode TV mode enter hotel mode AV mode enter hotel mode VCO readjust when position select 0:enable 1:disable
0: 6 key 1: 7 key OEM LOGO 0:Use TCL LOGO 1:Use OEM LOGO LOGO 0:disable 1:enable TINT por PIF SELECT 00:38MHz 01:38.9MHz 10:45.75MHz 11:Don't Use Secam 0:disable 1:enable APC 1:AUTO 0:PRESET
hd kill timer set *40us when STBY.5=0 ,after AC on 0: standby 1: power on after AC power on, 0: ref STBY.4 1: last state Biological Clock 0:disable 1:enable Child Lock 1:disable 0:enable 0C FS/VS Select 0:VS TUNER 1:FS Tuner English language select Arabic language select Vietnam language select mute type 0: y mute 1: RGB mute when mode0.7 = 1 ; preset sound system after ASM 00: BG 01 :I 10:DK 11: M preset sound system after ASM 0:Disable 1:Enable
5
0 1 2 3 4 5 6 7 MUTT STAT GROUP 7 RF AGC SBY SRY BRTS TXCX RGCN BBCT GROUP 9 V05 V10 V30 V50 V70 V90 V100 GROUP 10 SVM PYNX PYNN PYXS PYNS
BG system enable I system enable DK system enable M system enable VIDEO2 enable video3 enable YUV enable Thailand Dual language 0:Disable 1:Enable standby -->wake time contrast up timer after standby off KEY 7 RF AGC SECAM B-Y BLACK ADJUST SECAM R-Y BLACK ADJUST SUB BRIGHT shift data of BRTC TEXT RGB CONTRAST MAX. TEXT RGB CONTRAST MIN.
KEY 8 VOLUME 05 VOLUME 10 VOLUME 30 VOLUME 50 VOLUME 70 VOLUME 90 VOLUME 100 KEY 9 SVM Normal H.SYNC max Normal H.SYNC min Search H.SYNC max Search H.SYNC min
GROUP 11 KEY CALENDAR CLTB TV mode & SOUND SYS = BG CLTD TV mode & SOUND SYS != M,BG CLTM TV mode & SOUND SYS = M CLVO VIDEO CLVD YUV MODE CLTB CLTD CLTM CLVO CLVD bit setting 7 KILLER OFF 6 P/N ID 5 C GAMMA 4 NTSC-MATRIX 3 2 1 Y DL 0 ABL 5 4 ABL SETUP TB1254N RGB ABL TB1254N WPS
6
3 2 1 0 DCBS 0~3 4~5 DEF 0
ABLpoint setup
VIDEO DATA SETUP Y GAMMA BLACK STRETCH OSD LEVEL V AGC SELECT V AGC reference, 0:depends on YC Vcc 1:Depends on integrated regulator KEY OSD Horizontal Position(volume bar, Picture bar, Half blue panel OSD) OSD PLL DATA(volume bar, Picture bar, Half blue panel OSD) OSD Horizontal Position except OSD1 items OSD PLL DATA except OSDF1 items NOTEBOOK
GROUP 14 OSD1 OSDF1 OSD2 OSDF2 HAFC 0 1 2 3 NOIS 0 1 2 UCOM
when nois.2 = 1 ; TV hafc gain if nois.2 = 0 TV hafc gain depend on noise(0~1) in video mode hafc gain HAFC DATA noise det fix the hafc gain MCU DATA
Group Items VCD0
KEY SCAN Bit 0 1 Description SY SKEW SHR f0 0: Off 1: Sync skew detection on 0: 2.75MHz 1: 4 MHz 0: Cb/Cr, Cr input(#21) gain up,+3dB 1: U/V 0: Main OSD = 30% : 70% 1: Main OSD = 50% : 50% 00: Interlocking "Video Switch" 01: Same as "00" 10: C-Trap Off Not Interlocking 11: C-Trap On Not Interlocking 00: Normal, depending on Audio Switch 01: TV Default 0x00
2 3 4 5 6
U/V SW HT Gain Chroma Trap Mode Select
Audio Monitor
7
7 0 1 2 FM BPF 3 VCD1 4 5 6 ALC Gain 7 0 1 2 3 VCD2 4 5 Black Stretch Switch C Trap Q Spot Kill Y Coring Switch PIF Detected Level H SBLK
ACL Start Point
6 7 0 SYNC DET 1 2 SYBBN 3-7 0 1 2
BPF SW Don't use Sync slice level for week signal Sync separation level select Select H Sync judgment Don't use
10: Mute 11: Mute Don't use 0: Off 1: On, 92%(FBP BLK off, then internal BLK ON) 00: Internal BPF mode 01: Not Use 10: Not Use 11: External BPF mode 00: 2.10 Vp-p 01: 2.20 Vp-p 10: 2.30 Vp-p 11: 2.40 Vp-p 00: ALC off 01: 1.1 Vp-p 10: 1.6 Vp-p 11: 2.3 Vp-p 0: Off 1: & BB: (1), then RGB out: (110 IRE) 0: Off 1: On 00: 0 V 01: -0.2 V 10: -0.3 V 11: -1.0 V(ACL Off) 0: Off 1: On 0: Low 1: High 0: Normal, CVBS signal passes along BPF 1: By Pass, CVBS signal doesn't pass along BPF 0: Normal 1: Low 0: 40% 1: 50% 0: BUS(Internal) 1: TC3(External)
0x01
0x02
0x00 Window pulse for H-Lock detection for Searching & Tuning H-Lock detection mode for Searching & Tuning Select Sync-Det-1 for Sync detection Select Sync-Det-1 for Sync detection LPF mode for HLock detection for Searching & Tuning
0: Normal 1: Narrow
3
0: H Lock Detection mode 1: D-Sync Pulse count mode 0: High Level 1: Low Level 0: High Level 1: Low Level 0: Off 1: LPF On
4 5
6
8
7 0 1 2 Window pulse for H-Lock detection for Searching & Tuning H-Lock detection mode for Searching & Tuning Select Sync-Det-1 for Sync detection Select Sync-Det-1 for Sync detection LPF mode for HLock detection for Searching & Tuning 0: Normal 1: Narrow 0x00 0: H Lock Detection mode 1: D-Sync Pulse count mode 0: High Level 1: Low Level 0: High Level 1: Low Level 0: Off 1: LPF On
3 SYBBF 4 5
6 7 0 1 2
3 SYSR 4 5
6 7 NOIS DET 0-3 4-7 0-6 FM RADIO 7
Window pulse for H-Lock detection for Searching & Tuning H-Lock detection mode for Searching & Tuning Select Sync-Det-1 for Sync detection Select Sync-Det-1 for Sync detection LPF mode for HLock detection for Searching & Tuning
0: Normal 1: Narrow
0: H Lock Detection mode 1: D-Sync Pulse count mode 0x02 0: High Level 1: Low Level 0: High Level 1: Low Level 0: Off 1: LPF On
Noise Detection Don't use Don't use FM Radio
0,1,2: Don't use 3: S/N High F: S/N Low
0x0F
0: Off 1: On
0x80
Group Items STBG
KEY AT Bits 03 4-7
Description S-Trap f0 for BG Don't use S-Trap f0 for I Don't use 0: Sound Trap Off 1: f0 tuning min F: f0 tuning max 0: Sound Trap Off 1: f0 tuning min F: f0 tuning max
Default 0x08
STI
03 4-7
0x08
9
STDK
03 4-7
S-Trap f0 for DK Don't use S-Trap f0 for I Don't use Sound Trap GD for BG
0: Sound Trap Off 1: f0 tuning min F: f0 tuning max 0: Sound Trap Off 1: f0 tuning min F: f0 tuning max 00: Off 01: 60nS 10: 90nS 11: 120nS 00: Q = 3 01: Q = 5 10: Q = 7 11: Q = 9 00: Off 01: 1 dB HPF 10: -3 dB LPF 11: -2 dB LPF 00: Off 01: 60nS 10: 90nS 11: 120nS 00: Q = 3 01: Q = 5 10: Q = 7 11: Q = 9 00: Off 01: 1 dB HPF 10: -3 dB LPF 11: -2 dB LPF 00: Off 01: 60nS 10: 90nS 11: 120nS 00: Q = 3 01: Q = 5 10: Q = 7 11: Q = 9 00: Off 01: 1 dB HPF 10: -3 dB LPF 11: -2 dB LPF 00: Off 01: 60nS 10: 90nS 11: 120nS 00: Q = 3 01: Q = 5 10: Q = 7 11: Q = 9 00: Off 01: 1 dB HPF 10: -3 dB LPF 11: -2 dB LPF
0x08
STM
03 4-7 0 1 2
0x08
SSBG
Sound Trap Q for BG
3 4 5 6-7 0 1 2 Sound Trap Q for I Sound Trap HP/LP for BG Don't use Sound Trap GD for I
0x00
SSI
3 4 5 6-7 0 Sound Trap GD for DK 1 2 Sound Trap HP/LP for I Don't use
0x00
SSDK 3 4 5 6-7 0 1 2 SSM 3 4 5 6-7
Sound Trap Q for DK
0x00
Sound Trap HP/LP for DK Don't use Sound Trap GD for M
Sound Trap Q for M
0x00
Sound Trap HP/LP for M Don't use
10
Group Items NDTC NDTCT
Bit 0-7 0 -7
Key FM Description Counter for non-weak signal 00 detection FF 00 Counter for weak signal detection FF
Default 0x05 0x05
Items
Bits 0-1 2-3
Description Tuner Select Don't use Switch for startup notebook in d-mode X-Ray protection mode Hi Senstive Available offset value for RCUT of Warm Sign bit Available offset value for GCUT of Warm Sign bit Available offset value for BCUT of Warm Sign bit Available offset value for GDRV of Warm Sign bit Available offset value for BDRV of Warm Sign bit Available offset value for RCUT of Cool Sign bit Available offset value for GCUT of Cool 1: ON 0: OFF 1: > 2.5 V then active 0: < 2.5V then active 0: Off 1: On 00 7F 1: "-" subb operation 0: "+" add operation 00 7F 1: "-" subb operation 0: "+" add operation 00 7F 1: "-" subb operation 0: "+" add operation 00 7F 1: "-" subb operation 0: "+" add operation 00 7F 1: "-" subb operation 0: "+" add operation 00 7F 1: "-" subb operation 0: "+" add operation 00 7F 00: SHARP 01: TCL/PHILIPS 10: ALPS 11: SHARP
Default
Mode2
4 5 6 7 0 -6
0x02
WRCUT 7 0 -6 7 0-6 7 0 -7 WGDRV 7 0 -7 WBDRV 7 0 -6 7 CGCUT 0 -6
WGCUT
WBCUT
CRCUT
11
7 0-6 CBCUT 7 0 -7 7
Sign bit Available offset value for BCUT of Cool Sign bit Available offset value for GDRV of Cool Sign bit Available offset value for BDRV of Cool Sign bit
1: "-" subb operation 0: "+" add operation 00 7F 1: "-" subb operation 0: "+" add operation 00 7F 1: "-" subb operation 0: "+" add operation 00
CGDRV
0 -7 CBDRV 7
OEMC
0-2
OEM Logo string color setting
7F 1: "-" subb operation 0: "+" add operation 000: Black 001: use Red instead of Blue 010: Green 011: Cyan 100: Red 101: Magenda 110: Yellow 111: White 0 - FF 0 - FF
3-7 OEMH OEMV 0-7 0-7
OEMVS
0-7
Don't use H - offset value for OEM logo V offset value for OEM logo in 50Hz system V offset value for OEM logo in 60Hz system
0 -FF
Some items is removed and be changed into: SCOL VCD2 CLTO CLTB, CLTD SECD BBCT REFP VCD1RSNS VCD0 GSNS UBK BSNS VBK VCEN VCENP, VCENN New items MODE2 STBG STI STM SSBG SSI SSM SYNC NOIS DET SYBBF SYSR FM RADIO WGCUT WBCUT WGDRV CRCUT CGCUT CBCUT CGDRV CBDRV OEMC OEMH OEMVS
STDK SSDK SYBBN WRCUT WBDRV OEMV
12
M28B Block Diagram
By ZSM
2002/9/10
220V~
D801--D804
Q801~ Q804 AMP.
T803 Transformer
112v 12V 12V
R/G/B
Q501 Q503 Q505 AMP.
R/G/B
CRT
V.out
TMPA8821
V. AMP. IC301
Tuner TU101 IC201
IF AMP Q101
SAW Z101
EHT FOCUS SCREEN
H.out
CPU IC001
IC603
H.drive AMP. Q401 Q402
FBT T402
Audio AMP.
TV/AV SW
220V,24V 6.3V IC601 Speaker
E2PROM IC002 IR001 Sensor
KEY
AV Vin AV Vout AV Ain AV Aout