Toshiba TCL M28LG2 Service Manual Download Page 23

Page: 23 / 56

Tentative

Confidential

TMPA8873CxBNG

2006/05/25

Microcontrollers Descriptions

(MROM version: TMPA8873CMBNG /CPBNG /CRBNG /CSBNG)

Ring

Oscillator

TLCS-870/X

CPU core

Data Memory

(RAM)

Display

Memory

Character

ROM

High

frequency

Clock

Generator

Timing Generator

Standby Controller

System Controller

Time Base

Timer

Watchdog

Timer

DA Converter

(PWM)

Video signal

output

Remote

control signal

Serial Bus

Interface

Interrupt Controller

8-bit

Timer/Counter

TC3

TC4

16-bit
Timer

TC1

TC2

ROM corrective circuit

Data Slicer

Program Counter

Program Memory

(ROM)

Key on

wake up

up AV

up MPAGND

up DV

up VV

RESET

TEST

XIN

XOUT

Resonator
Connecting Pins

Reset I/O Test Pin

Power Supply

Inst. Register

Inst. Decoder

8-bit

Jitter

Elimination

R, G, B,
Y/BL

HD I

P20 P40

P50 to P53, 56

P60 to P61, 63

P30, 31

P64 to P67 P70, 71 P57

I/O Ports

On-screen display circuit

P54 P34, 35

P33

P32

CLK

TV signal processor interface

CSOUT

Summary of Contents for TCL M28LG2

Page 1: ... BOM list 24 5 Alignment Procedure 38 6 Block Diagram 50 7 Schematic Diagram 51 8 PCB Layout 52 9 Trouble Shooting 53 10 Explode View Diagram 56 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 ...

Page 2: ...he presence of uninsulated 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 Use of controls adjustments or procedure...

Page 3: ...onnel 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 ...

Page 4: ...pporting structure grounding of the lead in wire to an antenna discharge unit size of grounding conductors location of antenna discharge unit connection to grounding electrode and requirements for the grounding electrode 15 2 Note to CATV system installer Only for the television set with CATV reception This reminder is provided to call the CATV system attention to Article 820 40 of the NEC that pr...

Page 5: ...AL D K PAL I SECAM B G SECAM D K Add Systems Ext In NTSC 3 58 NTSC 4 43 NTSC Play Back x PAL 60 x TV Systems Multi NTSC PAL x Sound Systems AV Stereo x NICAM German Stereo American Stereo Korean Stereo Picture Processing Scan Standard x Scan Modes 4 3 x 4 3 Expand Wide Screen Switching Combfilter Picture Control Brightness x Colour Hue tint x Contrast x Color Temperature Sharpness x scan velocity ...

Page 6: ...Technology CRT only Iron x Black Matrix x Real Flat CRT Defl 090 degr x 100 degr 110 degr 500 degr CRT Gun Stand Gun x CRT Magn field Neutral S Hemisphere x North Neutral Resolution Coating only for D V sets White Point Sound Leaflet Power 01W 02W 04W x 06W 10W 12W 20W RMS Power Intern 1x1W 2x1W 2x2W 21 2x3W 2x4W 2x5W 2X6W 2X10W RMS Power Extern Surround Sound Sound Features AVL Mute x Smart Sound...

Page 7: ...ng Channel Lock Favorite Channel x Manual Skip channel navigation Personal Zapping Signal Strength Indicator V chip with Smart Lock Hotel Mode x Recall AT High Sensitive Operational Features Alternate Channel Surf PP Features One PP for all channels x Tuning Install Features Aut Cable Ant Select x Auto Channel Prog x Auto Store x Factory Mode x Fine Tuning x Language Selection x Manual Search Stor...

Page 8: ...Cinch CVBS St 1x X 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 X 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 x Guide IR Blaster Jac...

Page 9: ...requency 50Hz X Type Mains Cord FlatPin Non Polarised Australia New Zealand Euro New Zealand VDE Power Consumption P TV in On 70W Power Consumption SB in Watts Less than 1 X 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 X FCC Elect Shock caution label Serial label X Warning l...

Page 10: ...e 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 Buil...

Page 11: ...PFS Product Functional Specification Date ProductView Report by Linda Wen Specs Products M28L G2 XX Radio Antenna in Non Volatile Memory In Y C Cinch CVBS Mo Version of deck Page 7 ...

Page 12: ...ut Sync out H L out AU Monitor out ALC filter A Vcc 8V YC Vcc 5V AU out 2 P20 Int5 Stop P40 PWM14bit Reset P50 PWM7bit TC2 Int0 TV AGND 6dB PIF Proc PAL NTSC demod Auto VCO alignment Vert Proc V C D V ramp V geometry V Drive Chroma Proc C BPF PAL NTSC Hor Proc Sync sepa Hor VCO HAFC 1 HAFC 2 H shift Cut off Drive RGB switch Brightness Half tone Transparent XO 870X CPU core STOP IDLE mode I O 10 I ...

Page 13: ...ns of SP from MCU are controllable through the IIC bus of the internal connections 2 Power Supply TMPA8873 has some power supplies and GND pins Power supplies related MCU must be applied at the first Power supplies for H VCC and TV D VCC are the second with at least 100 ms delay after MCU power ON The other power supplies are the last which are recommended to be supplied from a regulator circuit u...

Page 14: ...verter analog input LED output 2 P60 KWU4 AIN4 I O Input Input Key on wake up input A D converter analog input 3 P53 KWU0 AIN0 TC1 INT2 SCK1 I O Input Input Input Input I O Key on wake up input A D converter analog input Timer counter input External interrupt input SIO serial clock input output 4 up DVss Power Supply GND 5 Reset I O Reset signal input or watchdog timer output Address trap reset ou...

Page 15: ...X tal connecting pins 8 TEST Input Test pin for out going test 9 up DVdd Power Supply Vdd Supply 5V 10 up VVss Power Supply GND for Slicer circuit 54 up AGND Power Supply GND for Oscillator circuit 55 up AVdd Power Supply Vdd for Oscillator circuit Supply 5V 56 P56 I O 57 P52 SDA SO1 I O I O Output IIC bus serial data input output SIO serial data output ...

Page 16: ...nput output SIO serial data input 59 P50 PWM8 TC2 INT0 I O Output Input Input 7 bit D A conversion PWM output Timer Counter input External interrupt input 60 P40 PWM0 I O Output 14 12 bit D A conversion PWM output 61 P20 INT5 STOP I O Input Input External interrupt input STOP mode release signal input 62 P31 INT4 TC3 I O Input Input External interrupt input Timer Counter input ...

Page 17: ... Tentative Confidential TMPA8873CxBNG 2006 05 25 8 Pin No Pin Name I O Function Interface Circuit 63 P30 INT3 RXIN I O Input Input External interrupt input Remote control signal preprocessor input 64 P63 LED2 I O Output LED output ...

Page 18: ...Ω 14 HAFC 1 Terminal to be connected capacitor for H AFC filter This terminal voltage controls H VCO frequency 100Ω 300Ω 14 17 11 33kΩ 15 V saw Terminal to be connected capacitor to generate V saw signal V saw amplitude is kept constant by V AGC function 15 17 11 6kΩ 1kΩ 5kΩ 16 V out Output terminal for Vertical driving pulse 16 17 11 7 5kΩ 200Ω 200Ω 17 AVcc 8V Vcc terminal for DEF RGB Audio out a...

Page 19: ...21 18 22 Ext Au1 Input terminal for Audio signal 1 17 22 18 35kΩ 35kΩ 5kΩ 200Ω 23 C in Input terminal for Chroma signal 23 47 18 1 5kΩ 40kΩ 24 V2 in Input terminal for Video signal 24 47 18 11kΩ 1 5kΩ 1 5kΩ 25 ALC filter Terminal to be connected capacitor for ALC Audio Level Control 25 17 18 200Ω 5kΩ 26 V1 in Input terminal for Video signal Input level 1 Vp p 26 47 18 11kΩ 1 5kΩ 1 5kΩ 27 ABCL Inpu...

Page 20: ...inal for 1bit DAC or detected SIF signal 36 40 31 32 Ext Au2 in Input terminal for Audio signal 1 17 32 18 35kΩ 35kΩ 5kΩ 200Ω 33 H correc SIF in Input terminal for H correction and 2nd SIF 33 36 40 500Ω 70kΩ 30pF 30kΩ 6pF 30kΩ 34 DC NF Terminal to be connected capacitor for DC Negative Feedback from SIF Det output 34 17 18 500Ω 20kΩ 2kΩ 3kΩ 35 PIF PLL Terminal to be connected with loop filter for ...

Page 21: ...kΩ 40 IF GND GND terminal for IF circuit 41 42 IF in Input terminals for IF signals Pin41 and Pin42 are both input poles of differential amplifier 50kΩ 20pF 1 4kΩ 50kΩ 20pF 1 4kΩ 41 42 36 40 43 RF AGC Output terminal for RF AGC control level 43 36 40 200Ω 2kΩ 44 Black Det Terminal to be connected with Black Det filter for black stretch 44 47 18 4kΩ 4kΩ 45 SVM Monitor Output terminal for monitor fu...

Page 22: ...resister is required because of its open collector output Pull up resister minimum 4 7kohm 11 17 48 100Ω 5kΩ 49 DVCC Vcc terminal for Digital block This terminal voltage is clipped about 3 3V by regulator circuit Supply DVCC voltage from A VCC 8V 17 voltage via 270Ω 50 R out Output terminal for R signal 51 G out Output terminal for G signal 52 B out Output terminal for B signal 17 18 51 50 52 100Ω...

Page 23: ...t Remote control signal Serial Bus Interface Interrupt Controller 8 bit Timer Counter TC3 TC4 16 bit Timer TC1 TC2 ROM corrective circuit Data Slicer Program Counter Program Memory ROM P2 P4 P5 Key on wake up P6 P3 P6 P7 P5 up AVDD up MPAGND up DVDD up DVSS up VVSS RESET TEST XIN XOUT Resonator Connecting Pins Reset I O Test Pin Power Supply Power Supply Inst Register Inst Decoder 8 bit AD Jitter ...

Page 24: ... 74 009022 60C POLYBAG HANDSET 9CMX22CM 1 PC T8 0M28LF RM2 ASS Y REMOTE CONTROL BDEQU 1 PC 62 227680 0UA BRACKET ABS KINGFA 606 UO 1 PC 62 227680 1UA FBT BRACKET 1 PC 36 DEG210 DX3L DEGAUSSING COIL XC JQ2280 1 PC 41 GND021 LX0 ASS Y GND BRAID 21 CRT 1 FOR CRT GROUNDING PC 42 51208D XX1G SPEAKER 8 OHM 5W 52MMX120MM 2 W601 W602 PC 44 21RFLM HF4A 21SLIM CRT A51ERS357X440 M 1 PC 46 13902H 02XG HS 2P 2...

Page 25: ...CK R N 5 ESD700044E001起 PC 71 INDIAT SCR9B TV PRI LABEL TCL 2101 WHITE BLACK R N 1 PC 72 DE25XH E609C OPERATION MANUAL 1 PC 74 022032 6WE POLYBAG 23CMX34CMX0 06MM 1 PC 74 120120 80HAA POLYBAG W SUFFOCATION WARNING 1 PC 75 DV12LL CC0 POLYFOAM LL 1 PC 75 DV12LR CC0 POLYFOAM LR 1 PC 75 DV12UL CC0 POLYFOAM UL 1 PC 75 DV12UR CC0 POLYFOAM UR 1 PC 76 438800 0AT9P CARTON BOX 1 PC 55 DV12RC 0CN5F REAR CABI...

Page 26: ...029 XX0 TRANSFORMER HOR DRIVE BCT 1012A 1 T401 PC 36 LIN180 XX1 TCL36 LIN180 XX1 COIL LINEARITY 18 UH R 1 L411 PC 37 SC2502 84C0X TCL37 SC2502 84C0X FLYBACK BSC25 0284C 1 T402 PC 41 FG0300 0BB J WIRE UL1007 26 BLACK L 300M 1 P011 TO P011A PC 45 FIL10M 7Y0 TCL45 FIL10M 7Y0 CER FILTER LT 10 7 MS3 1 X206 PC 45 OSC8M0 0Y0 CRYSTAL 8 0MHZ 1 X001 PC 46 20598W 04XG PIN BASE 4 TJC1 4A 1 P401 FOR DY CONNECT...

Page 27: ... 400VAC 20 E 1 C829 PC 26 APK471 KBX CAP CER 470PF 400VAC 10 B 2 C804 C803 PC 26 AQK472 ZFX CAP CER 4700PF 250VAC 80 20 F 2 C808 C807 PC 27 AHP103 J06 TCL27 AHP103 J06 CAP M PP 10NF 400V 1 C810 PC 27 AQT224 MV3 CAP M PP 0 22UF 250VAC 1 C801 PC 27 MHW104 K0X CAP M P E 0 1 UF 400V 10 1 C802 PC 34 R101K2 1BX COIL CHOKE 100 UH 10 2 L834 L843 PC 35 139730 00X FERR BEAD BF60 6 FOR D841 FOR D833 FOR D830...

Page 28: ... 4A 2 P203 P002 FOR KEY BD P1002 PC 46 33079W 06XG PIN BASE 6 TJC3 6A 1 P904 TO AV BD P1002 PC 47 RCA181 XX0G AV SOCKET AV 3 2 9W15 1 P901 PC 50 03150D 1GS1G TCL50 03150D 1GS1G FUSE 3 15AT 250VAC 5 1 F801 PC 57 10654X 00F TWIST TIE NY66 1 PC 70 271510 00A SERVICE CARD 1 FOR PRODUCTION USE PC 71 270870 0A9 LABEL 2 PC 11 DD2603 RAX TRANSISTOR 3DD2603 R 1 Q1101 PC 18 FG0399 JHX RES M O 3 9 OHM 2W 5 1...

Page 29: ...H 06XG HS UL 24 400 TJC3 6Y SCN 6Y 1 P1002 反丝印插 FOR M BD P904 PC 47 RCA020 XX1G RCA SOCKET Y W R 1 P1001 PC 18 FG0153 JHX RES M O 15K OHM 2W 5 3 R510 R511 R512 PC 26 AIL103 KBX CAP CER 10NF 500V 10 1 C504 PC 26 AMM681 JZX CAP CER 2KV 680PF 5 1 C505 PC 26 EBP103 ZF1 CAP CER 50V 2 5MM 10nF 20 80 1 C514 PC 35 139730 00X FERR BEAD BF60 2 FOR C514 L505 L506 PC 46 10967W 01XG PIN BASE 1 TJC1 1A 1 P503 P...

Page 30: ...ES C F 15K OHM 1 6W 5 1 R257 PC 18 CB0154 JNX TCL18 CB0154 JNX RES C F 150K OHM 1 6 2 R245 R338 PC 18 CB0183 JNX RES C F 18K OHM 1 6W 5 1 R307 PC 18 CB0221 JNX RES C F 220 OHM 1 6W 5 8 R227 R228 R250 R204A R201 R202 R203 R217 PC 18 CB0222 JNX RES C F 2 2K OHM 1 6W 5 2 R440 D008 PC 18 CB0223 JNX RES C F 22K OHM 1 6W 5 3 R902 R441 R099 PC 18 CB0224 JNX RES C F 220K OHM 1 6W 5 1 R206 PC 18 CB0272 JNX...

Page 31: ...LEC 47 UF 16V 20 5 C081 C108 C202 C273 C 423 PC 25 BCB471 M1X CAP ELEC 470 UF 16V 20 1 C217 PC 25 BDB101 M1X CAP ELEC 100 UF 25V 20 1 C405 PC 25 BEB101 M1X CAP ELEC 100 UF 35V 20 1 C303 PC 25 BFB109 M1X CAP ELEC 1 UF 50V 20 4 C203 C095 C911 C916 PC 25 BFB229 M1X CAP ELEC 2 2 UF 50V 20 3 C214 C008A C091 PC 25 BFB478 M1X CAP ELEC 0 47 UF 50V 20 3 C218 C337 C097 PC 25 BFB479 M1X CAP ELEC 4 7 UF 50V 2...

Page 32: ...WIRE BARE JUMPER 5MM R 1 JP205 PC 41 WJ0060 B00 光铜线6MM 7 J023 JP909 JP106 J101 J102 J106 J902 PC 41 WJ0060 B00 光铜线6MM 8 J305 J302 J215 J211 J 107 J201 R016 R108 PC 41 WJ0060 B00 光铜线6MM 3 JP102 C226 J239 PC 41 WJ0065 B00 1 R N 7 J403 J207 J216 J104 J 006 JP401 J908 PC 41 WJ0065 B00 1 R N 7 JP005 J408 JP003 J910 J901 J226 J217 PC 41 WJ0065 B00 1 R N 2 R008 R012 PC 41 WJ0070 B00 WIREBAREJUMPER7MM 5 J...

Page 33: ... R1127 PC 18 CB0183 JNX RES C F 18K OHM 1 6W 5 1 R1117 PC 18 CB0184 JNX RES C F 180K OHM 1 6W 5 2 R1113 R1130 PC 18 CB0223 JNX RES C F 22K OHM 1 6W 5 3 R1114 R1122 R1121 PC 18 CB0273 JNX RES C F 27K OHM 1 6W 5 1 R1109 PC 18 CB0302 JNX RES C F 3K OHM 1 6W 5 1 R1102 PC 18 CB0333 JNX RES C F 33K OHM 1 6W 5 1 R1111 PC 18 CB0474 JNX RES C F 470K OHM 1 6W 5 1 R1115 PC 18 CB0564 JNX RES C F 560K OHM 1 6W...

Page 34: ...PER7MM 1 J1002 PC 41 WJ0075 B00 WIREBAREJUMPER7 5MM 1 J1003 PC 41 WJ0100 B00 WIREBAREJUMPER10MM 1 J1004 PC 10 0001H8 FBX DIODE 1H8 FAST RECOVERY 1 D809 PC 10 0FR104 FBX DIODE FR104 FAST RECTIFIER 1 D820 PC 10 1N4148 ABX DIODE 1N4148 SWITCHING 3 D819 D814 D840 PC 10 79C18V DBX DIODE ZENER 18V 1 2W 5 1 D821 PC 10 79C7V5 DBX TCL10 79C7V5 DBX DIODE ZENER 7V5 1 2W 5 1 D844 PC 10 TERC05 EBX DIODE TERC05...

Page 35: ...220 PF 500V 10 B 2 C841 C830 PC 26 EBP102 KBS CAP CER 1000 PF 50V 20 1 C839 PC 26 EBP103 KBS TCL26 EBP103 KBS CAP CER 10NF 50V 10 1 C844 PC 26 EBP103 ZFX CAP CER 0 01UF 50V 80 20 F 2 C831 C842 PC 26 EBP104 ZFS CAP CER 0 1UF 50V 80 20 1 C814 PC 26 EBP221 JCS CAP CER 220 PF 50V 5 1 C821 PC 26 EBP224 ZFX TCL26 EBP224 ZFX CAP CER 0 22 UF 50V 1 C818 PC 26 EBP471 JCS CAP CER 470 PF 50V 5 1 C813 PC 26 EB...

Page 36: ...2UF 63V 5 2 C602 C601 PC 27 PBC472 J0X TCL27 PBC472 J0X CAP P E 0 0047UF 63V 2 C604 C603 PC 41 WJ0060 B00 光铜线6MM 4 J602 J617 J616 J603 PC 41 WJ0065 B00 1 R N 2 J614 J613 PC 41 WJ0070 B00 WIREBAREJUMPER7MM 3 J601 J604 J606 PC 41 WJ0075 B00 WIREBAREJUMPER7 5MM 1 J608 PC 41 WJ0080 B00 WIREBAREJUMPER8MM 1 J615 PC 10 1N4148 ABX DIODE 1N4148 SWITCHING 2 D501 D502 PC 11 SA1015 YBX TRANSISTOR ST2SA1015Y P...

Page 37: ...1 6W 5 1 R414 PC 18 CB0334 JNX RES C F 330K OHM 1 6W 5 1 R819 PC 18 CB0513 JNX TCL18 CB0513 JNX RES C F 51K OHM 1 6W 1 R312 PC 18 CB0560 JNX RES C F 56 OHM 1 6W 5 2 R909 R910 PC 18 CE0221 JNX TCL18 CE0221 JNX RES C F 220 OHM 1 2W 1 R336 PC 25 BCB101 M1X CAP ELEC 100 UF 16V 20 1 C009 PC 25 BFB479 M1X CAP ELEC 4 7 UF 50V 20 1 C030 PC 26 ABC104 ZFX CAP CER 0 1 UF 50V 80 20 F 2 C910 C912 PC 41 WJ0065 ...

Page 38: ...nter size adjustment NTSC QC checking ALIGNMENT PROCEDURE FOR M28L G2 CHASSIS I Adjustment of B voltage for VR840 model only 1 Apply 160 240 110 220 VAC r5V 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 r0 5V II The alignment of RFAGC 1 Connect the detector shown below to collector of Q101 2 Receive a grey scale...

Page 39: ... 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...

Page 40: ...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 Æ FLG1 2 sets at 1 logo works Æ FLG1 1 sets at 0 TCL logo works sets at 1 Customer logo ...

Page 41: ...0Hz ʳ VCENN V CENTERING 60Hz ʳ OSDH OSD vertical position 50HZ ʳ OSDHS OSD vertical position 60HZ ʳ ʳ ʳ ʳ GROUP 3 KEY 3 ʳ CNTX CONTRAST MAX ʳ CNTN CONTRAST MIN ʳ BRTX BRIGHT MAX difference from center ʳ BRTN BRIGHT MIN difference from center ʳ COLX COLOR MAX difference from center ʳ COLN COLOR MIN ʳ TNTX TINT MAX difference from center ʳ TNTN TINT MIN difference from center ʳ ʳ ʳ ʳ GROUP 4 KEY 4 ʳ...

Page 42: ...hen position select 0 enable 1 disable ʳ ʳ ʳ ʳ FLG1 ʳ ʳ 0 0 6 key 1 7 key ʳ 1 OEM LOGO 0 Use TCL LOGO 1 Use OEM LOGO ʳ 2 LOGO 0 disable 1 enable ʳ 3 TINT por ʳ 4 PIF SELECT 00 38MHz 01 38 9MHz ʳ 5 10 45 75MHz 11 Don t Use ʳ 6 Secam 0 disable 1 enable ʳ 7 APC 1 AUTO 0 PRESET ʳ ʳ ʳ ʳ STBY ʳ ʳ 0 ʳ 1 ʳ 2 ʳ 3 hd kill timer set 40us ʳ 4 when STBY 5 0 after AC on 0 standby 1 power on ʳ 5 after AC power o...

Page 43: ... ʳ RGCN TEXT RGB CONTRAST MIN ʳ BBCT ʳ ʳ ʳ ʳ GROUP 9 KEY 8 ʳ V05 VOLUME 05 ʳ V10 VOLUME 10 V30 VOLUME 30 V50 VOLUME 50 V70 VOLUME 70 ʳ V90 VOLUME 90 ʳ V100 VOLUME 100 ʳ ʳ ʳ GROUP 10 KEY 9 ʳ SVM SVM ʳ PYNX Normal H SYNC max ʳ PYNN Normal H SYNC min ʳ PYXS Search H SYNC max ʳ PYNS Search H SYNC min ʳ ʳ ʳ ʳ GROUP 11 KEY CALENDAR ʳ CLTB TV mode SOUND SYS BG ʳ CLTD TV mode SOUND SYS M BG CLTM TV mode S...

Page 44: ... DATA except OSDF1 items ʳ ʳ ʳ ʳ HAFC ʳ ʳ 0 when nois 2 1 TV hafc gain ʳ 1 if nois 2 0 TV hafc gain depend on noise 0 1 ʳ 2 in video mode hafc gain ʳ 3 ʳ ʳ NOIS HAFC DATA ʳ 0 noise det ʳ 1 ʳ ʳ 2 fix the hafc gain ʳ UCOM MCU DATA ʳ Group KEY SCAN Items Bit Description Default 0 SY SKEW 0 Off 1 Sync skew detection on 1 SHR f0 0 2 75MHz 1 4 MHz 2 U V SW 0 Cb Cr Cr input 21 gain up 3dB 1 U V 3 HT Gain...

Page 45: ... Trap Q 0 Low 1 High 6 BPF SW 0 Normal CVBS signal passes along BPF 1 By Pass CVBS signal doesn t pass along BPF VCD2 7 Don t use 0 Sync slice level for week signal 0 Normal 1 Low 1 Sync separation level select 0 40 1 50 2 Select H Sync judgment 0 BUS Internal 1 TC3 External SYNC DET 3 7 Don t use 0x02 0 1 2 Window pulse for H Lock detection for Searching Tuning 0 Normal 1 Narrow 3 H Lock detectio...

Page 46: ...Sound Trap GD for I 00 Off 01 60nS 10 90nS 11 120nS 2 3 Sound Trap Q for I 00 Q 3 01 Q 5 10 Q 7 11 Q 9 4 5 Sound Trap HP LP for I 00 Off 01 1 dB HPF 10 3 dB LPF 11 2 dB LPF SSI 6 7 Don t use 0x00 0 1 Sound Trap GD for DK 00 Off 01 60nS 10 90nS 11 120nS 2 3 Sound Trap Q for DK 00 Q 3 01 Q 5 10 Q 7 11 Q 9 4 5 Sound Trap HP LP for DK 00 Off 01 1 dB HPF 10 3 dB LPF 11 2 dB LPF SSDK 6 7 Don t use 0x00 ...

Page 47: ... value for RCUT of Warm 00 7F WRCUT 7 Sign bit 1 subb operation 0 add operation 0 6 Available offset value for GCUT of Warm 00 7F WGCUT 7 Sign bit 1 subb operation 0 add operation 0 6 Available offset value for BCUT of Warm 00 7F WBCUT 7 Sign bit 1 subb operation 0 add operation 0 7 Available offset value for GDRV of Warm 00 7F WGDRV 7 Sign bit 1 subb operation 0 add operation 0 7 Available offset...

Page 48: ...lack 001 use Red instead of Blue 010 Green 011 Cyan 100 Red 101 Magenda 110 Yellow 111 White OEMC 3 7 Don t use OEMH 0 7 H offset value for OEM logo 0 FF OEMV 0 7 V offset value for OEM logo in 50Hz system 0 FF OEMVS 0 7 V offset value for OEM logo in 60Hz system 0 FF Some items is removed and be changed into SCOL ĺ VCD2 CLTO ĺ CLTB CLTD SECD ĺ BBCT REFP ĺ VCD1RSNS ĺ VCD0 GSNS ĺ UBK BSNS ĺ VBK VCE...

Page 49: ...3 H Lock detection mode for Searching Tuning 0 H Lock Detection mode 1 D Sync Pulse count mode 4 Select Sync Det 1 for Sync detection 0 High Level 1 Low Level 5 Select Sync Det 1 for Sync detection 0 High Level 1 Low Level 6 LPF mode for H Lock detection for Searching Tuning 0 Off 1 LPF On SYSR 7 0x02 0 3 Noise Detection 0 1 2 Don t use 3 S N High F S N Low NOIS DET 4 7 Don t use 0x0F 0 6 Don t us...

Page 50: ...F AMP Q101 SAW Z101 TMPA8873 IC201 2 Q501 Q503 Q505 AMP R G B CRT R G B V AMP IC301 V out H drive AMP Q401 Q402 H out FBT T402 220V 24V 6 3V EHT FOCUS SCREEN TMPA8873 IC201 1 E2 PROM IC002 KEY IR001 Sensor SIDEAVVin Q902 Q210 Audio AMP IC601 REAR AV AIN Speaker IC802 Q903 Q210 AVOUT AV R L OUT 6 Block Diagram ...

Page 51: ...7 Schematic Diagram ...

Page 52: ...8 PCB Layout ...

Page 53: ...Q209 R218 OK Check the wave form at Pin50 51 52 of IC201 OK Check the voltage at Pin55 of IC201 No PIC OK Check the wave form at Pin30 of IC201 Check the wave form at Pin41 42 of IC201 Check the voltage at Pin35 Replace IC201 OK Replace CRT Board OK Troubleshooting 8ÿ 53 ...

Page 54: ...608B Check the wave form at Pin6 8 11 of IC601 and the voltage of IC601 12V Check the wave form at Pin34 37 of IC201 Check the wave form at Pin28 29 of IC201 Check the wave form at Pin7 10 of IC601 OK OK Replace IC201 OK NG No Sound OK Check the wave form at Pin31 of IC201 Check the wave form at Pin33 OK Check z2001 Z2002 D203 D204 54 ...

Page 55: ...at PIN3 4 5 OF P501 and R G B wave form and the voltage PIN1 of P501 Check the voltage at PIN1 2 3 4 7 of Replace the CRT NG Check Q501 Q502 Q50 3 Q510 NG NG Replace Q401 Q402 T40 2 NG Check the voltage of 300V NG NG Check the voltage of 12V 12VA 33V Replace Q510 Q502 Q50 3 Q510 NG Check SW801 F801 DB801 Replace T802 Check Q401 Q402 T40 2 Replace T401 Replace IC201 55 ...

Page 56: ...56 ...

Search results

Summary of Contents for TCL M28LG2

Reviews:

Related manuals for TCL M28LG2

Brands by name

Popular brands

Toshiba TCL M28LG2, Service Manual

Search results

Summary of Contents for TCL M28LG2

Reviews:

Related manuals for TCL M28LG2

Brands by name

Popular brands