DAEWOO ELECTRONICS T008, Service Manual

Page 1: ...1 Daewoo Electronics SERVICE MANUAL T008 ...

Page 2: ... Remote Control Circuit Diagram and Function 1 User Remote 2 Service Remote 5 Service Controlled Function 1 White balance adjustment 2 Pictureand AGC adjustment 3 Option set 6 Service and Design Data 7 ICs Functional Description 8 Test Point Waveforms 9 IC Voltages 10 Other 3 4 5 6 6 7 8 8 8 9 13 14 14 14 15 ...

Page 3: ...ot check high voltage by drawing an arc Use a high voltage meter or a high voltage probe with a VTVM Discharge the picture tube before attempting meter connection by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10kΩ 2W resitor to the anode button 8 When service is required observe the original lead dress Extra precaution should be given to assure co...

Page 4: ...he Closed Caption decoder The TV signal processor contains PIF SIF Video multi standard chroma Sync RGB processors A8893CPNG 6RE1 MCU OSD CCD TV Processor controller with Software inside 24C08 Non Volatile memory EEPROM STV9302B Vertical deflection system output circuit TDA7263 Audio Output SC6122 Remote Controlled Transmitter TOSHIBA G8 chassis color TV block diagram MCU PIF SIF Video Chroma Sync...

Page 5: ...o signal 29 AU out2 Out Output terminal 2 for Audio signal 30 TV out FM radio Out Output terminal for detected PIF signal or FM radio 31 SIF out Out Output terminal for 1bit DAC detected SIF signal or audio monitor out 2 32 Ext AU2 in In Input terminal for External Audio signal 1 33 H correct SIF in In Input terminal for H correction and 2nd SIF 34 DC NF Out Terminal to be connected capacitor for ...

Page 6: ...al sync signal input 63 REMOTE I O Remote controller signal input 64 POWER I O Power control Check On Hi Z input Off L output 4 Remote Control Circuit Diagram and Function A User Remote NO Code Name TV Mode 01 00 0 0 02 01 1 1 03 02 2 2 04 03 3 3 05 04 4 4 06 05 5 5 07 06 6 6 08 07 7 7 09 08 8 8 10 09 9 9 11 0A CCD CCD 12 0B 1 13 0C MENU Menu switch 14 0D SYS System 15 0E QV Quick View 16 0F P Vid...

Page 7: ...ar 29 4C ZOOM Screen zoom wide 30 4D MSG Message 31 56 LOCK Lock B Service Remote NO Code Name TV Mode 01 00 G DRV G DRIVE 02 01 B DRV B DRIVE 11 0A MUTE3 To set the screen into a horizontal line 12 0B MENU MENU 13 0C ITEM SELECT UP 14 0D ITEM SELECT DOWN 15 0E Menu Item adjust decrease 16 0F Menu Item adjust increase 21 14 POWER Power Stand by 24 17 HPOS 60Hz HORIZONTAL PHASE 25 18 OSD OSD POSITI...

Page 8: ... 4 8 3 key 1 White balance adjustment The items within the White Balance mode can be accessed using Item up Item down keys and the selected item value is modified using Value Value keys The parameters controlled in the White Balance menu are a Press the key to set the screen into a horizontal line b RCUT Red cut off value increase c RCUT Red cut off value decrease d GCUT Green cut off value increa...

Page 9: ...en you push V SIZE button Æpush keys to adjust Æpush M ON button to exit after you adjust over These service remote is common remote so some function of items is a little difference as below Service R C No 2 50HZ V LINE 60Hz VERTICAL LINEARILTY 50HZ V SIZE 60Hz VERTICAL AMPLITUDE 50HZ V CENT 60Hz VERTICAL PHASE V SADJ 60Hz VERTICAL S CORRECTION 50HZ H CENT 60Hz HORIZONTAL PHASE Service R C No 5 RF...

Page 10: ...of 256ms Bit5 Fjp_pwr_delay nouse 1S delay power on Bit4 Fjp_power_option stand by status must use remote control to open TV Bit3 Fjp_woofer no use use Bit2 Fjp_ta1343n no use use Bit1 Fav_chg_mute not mute mute OPT2 Bit0 Fslice_level use to control the seventh bitof2in1 0x1e register 40 set bit6 of register 0x1e of 2in1 to 0 35 set bit6 of register 0x1e of 2in1 to 1 4 OPT3 Bit Function Status 0 S...

Page 11: ...YAN 4 RED 5 MAGENDA 6 YELLOW 7 WHITE 8 BLACK 9 DARK BLUE 10 DARK GREEN and so on 9 TCOR Bit Function Status 0 Status 1 Bit7 No use No use Bit6 Italic enable specification register normal italic Bit5 Underline enable specification register normal underline Bit4 No use No use TCOR Bit3 0 Set menu top character s color 0 BLACK 1 BLUE 2 GREEN 3 CYAN 4 RED 5 MAGENDA 6 YELLOW 7 WHITE 8 BLACK 9 DARK BLUE...

Page 12: ...3 Fjp_logo_nosignal no use logo display while no signal LOGO Bit2 0 Set logo color 000 black 001 blue 010 green 011 cyan 100 red 101 magenda 110 yellow 111 white 15 LOGH adjust the horizontal display position of lo 16 LOGV adjust the vertical display position of logo 17UVBK Bit Function Status 0 Status 1 Bit7 4 U BLK ADJ 0 22mV Input DC 8 0mV F 19mV 2 75mV dev LOGO Bit3 0 V BLK ADJ 0 22mV Input DC...

Page 13: ...0 7MHZ RF Bit4 BPF SW Normal CVBS signal passes along BPF By pass CVBS signal doesn t pass along BPF Bit3 Fvcd_spot_killer off If BB 1 RGB out is 110 IRE Bit2 Nyquist Buzz cancel Nyquist Buzz cancel off Bit1 No use FLG0 Bit0 Over mode Normal PIF over modulation switch on 23 FLG1 Bit Function Status 0 Status 1 Bit7 OSD ABL ABCL active for OSD inactive Bit6 No use don t use it Bit5 4 OSD CONTRAST 00...

Page 14: ...89x Bit4 Reg 19H bit5 0 for 889x Bit3 Reg 21H bit1 SY DET 2 for 889x Bit2 Reg 21H bit0 SY DET 3 for 889x Select the input IF signal level of Sync Lock detection 00010 0dB 00011 0dB 10010 0dB 10011 0dB 10001 4dB 10000 8dB weak signal others Do not use SYNB Sync detecti on setting for BB Off Bit1 0 Sel sync check mode for BB oFF 00 checking H LOCK 1 flag bit3 of r0 01 checking H LOCK 2 flag bit4 of ...

Page 15: ...M DATA REMARK ITEM DATA REMARK 006 RCUT 20 R CUT OFF 069 TREC 40 TREBLE CENTER VALUE 007 GCUT 20 G CUT OFF 070 BALC 3F BALANCE CENTER VALUE 008 BCUT 20 B CUT OFF 071 WOFC 39 WOFFER CENTER VALUE 009 GDRV 40 G DRIVE 072 BASX 72 BASS MAX VALUE 010 BDRV 40 B DRIVE 073 TREX 72 TREBLE CENTER VALUE 011 CNTX 7F SUB CONTRAST MAX 074 WOFX 72 WOFFER CENTER VALUE 012 BRTS 00 SUB BRIGHNESS 075 EFF1 40 SOUND EF...

Page 16: ...00 LOGO HORIZONTAL POSITION 051 VPS 00 50Hz VERTICAL PHASE 114 LOGV 0F LOGO VERTICAL POSITION 052 HITS 00 50Hz VERTICAL AMPLITUDE 115 LOGO 45 LOGO select 053 VLIS 00 50Hz VERTICAL LINEARILTY 116 ERAS A3 Be used to adjust the time of thermal resistance control 054 VSS 00 50Hz VERTICAL S CORRECTION 117 CATVM 00 CATV select 055 OV50 00 OSD Vertical position for 50Hz 118 WTON 7D Turn on delay set 056 ...

Page 17: ...25 26 27 28 29 30 31 32 33 34 35 36 37 38 Voltage 1 9 2 0 3 9 2 4 2 5 0 7 2 7 4 4 3 1 3 2 3 0 3 2 3 9 2 9 2 2 2 4 5 0 2 1 3 1 V411 C 5Vpp 7Vpp 1000Vpp 1 3Vpp H H 4 5Vpp V H H CRT KB CRT KG CRT KR 95Vpp 95Vpp 95Vpp H H H V444 C HEATER 75Vpp 23Vpp H H V444 B 0 7Vpp A8891 PIN50 3 8Vpp 3 8Vpp 3 8Vpp H H H A8891 PIN51 A8891 PIN52 A8891 PIN13 A8891 PIN12 A8891 PIN16 A8891 PIN6 H A8891 PIN26 A8891 PIN30 ...

Page 18: ... 0 0 0 0 1 1 0 0 1 0 2 0 0 1 1 3 0 1 0 0 4 0 1 0 1 5 0 1 1 0 6 0 1 1 1 7 1 0 0 0 8 1 0 0 1 9 1 0 1 0 A 1 0 1 1 B 1 1 0 0 C 1 1 0 1 D 1 1 1 0 E 1 1 1 1 F 2 Some skills of factory adjustment a How to use Service Remote enter service mode Pressing the D MODE ON OFF key Press D MODE ON OFF key again to exit service mode b How to use User remote enter Service mode Press MENU 6 4 8 3 key within 6s c How...

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