Download Daewoo DTH-21S7 Service manual
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DAEWOO(T011-21”) COLOUR TELEVISION SERVICE MANUAL 1 CONTENTS 1. Safety Precautions………………………………………………………………………………… 3 2. MCU and signal Processor for a PAL/NTSC TV…………………………………………………… 4 3. Definition of A8899CPCNG6VU9 Pin……………………………………………………………5 4. Remote Control Circuit Diagram and Function…………………………………………………… 6 1)User Remote……………………………………………………………………………………… 6 2)Service Remote…………………………………………………………………………………… 7 5. Service Controlled Function………………………………………………………………………… 8 1)White balance adjustment………………………………………………………………………… 8 2)Pictureand AGC adjustment…………………………………………………………………… 8 3)Option set………………………………………………………………………………………… 9 6. Service and Design Data…………………………………………………………………………… 15 7. ICs Functional Description………………………………………………………………………… 16 8. Test Point Waveforms……………………………………………………………………………… 16 9. IC Voltages………………………………………………………………………………………… 17 10. Other…………………………………………………………………………………………… 17 2 1. SAFETY PRECAUTIONS 1. 2. 3. 4. 5. 6. 7. 8. The design of this product contains special hardware, many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only. Alterations of the design or circuitry of the products should not be made. Any design alterations or additions will void the manufacturer’s warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom. Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the parts list of Service manual. Electrical components having such features are identified by shading on the schematics and by ( ! ) on the parts list in Service manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement part shown in the parts list of Service manual may cause shock, fire, or other hazards Don’t short between the LIVE side ground and ISOLATED (NEUTRAL) side ground or EARTH side ground when repairing. Some model’s power circuit is partly different in the GND. The difference of the GND is shown by the LIVE: ( ) side GND, ISOLATED (NEUTRAL) : ( ) side GND and EARTH : ( ) side GND. Don’t short between the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND and never measure with a measuring apparatus (oscilloscope etc.) the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at the same time. If above note will not be kept, a fuse or any parts will be broken. If any repair has been made to the chassis, it is recommended that the B1 setting should be checked or adjusted (See ADJUSTMENT OF B1 POWER SUPPLY). The high voltage applied to the picture tube must conform with that specified in Service manual. Excessive high voltage can cause an increase in X-Ray emission, arcing and possible component damage, therefore operation under excessive high voltage conditions should be kept to a minimum, or should be prevented. If severe arcing occurs, remove the AC power immediately and determine the cause by visual inspection (incorrect installation, cracked or melted high voltage harness, poor soldering, etc.). To maintain the proper minimum level of soft X-Ray emission, components in the high voltage circuitry including the picture tube must be the exact replacements or alternatives approved by the manufacturer of the complete product. Do not 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. When service is required, observe the original lead dress. Extra precaution should be given to assure correct lead dress in the high voltage circuit area. Where a short circuit has occurred, those components that indicate evidence of overheating should be replaced. Always use the 9. manufacturer’s replacement components. 10. Isolation Check (Safety for Electrical Shock Hazard) After re-assembling the product, always perform an isolation check on the exposed metal parts of the cabinet (antenna terminals, video/audio input and output terminals, Control knobs, metal cabinet, screwheads, earphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock. 11. The surface of the TV screen is coated with a thin film which can easily be damaged. Be very careful with it when handle the TV. Should the TV screen become soiled, wipe it with a soft dry cloth. Never rub it forcefully. Never use any cleaner or detergent on it. (1) Dielectric Strength Test The isolation between the AC primary circuit and all metal parts exposed to the user, particularly any exposed metal part having a return path to the chassis should withstand a voltage of 3000V AC (r.m.s.) for a period of one second. (…Withstand a voltage of 1100V AC (r.m.s.) to an appliance rated up to 120V, and 3000V AC (r.m.s.) to an appliance rated 200V or more, for a periode of one second.) This method of test requires a test equipment not generally found in the service trade. (2) Leakage Current Check Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check.). Using a “Leakage Current Tester”, measure the leakage current from each exposed metal part of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground (water pipe, etc.). Any leakage current must not exceed 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.2mA AC (r.m.s.). ●Alternate Check Method Plug the AC line cord directly into the AC outlet ( do not use a line isolation transformer during this check.). Use an AC voltmeter having 1000 ohms per volt or more sensitivity in the following manner. Connect a 1500Ω 10W resistor paralleled by a 0.15µF AC-type capacitor between an exposed metal part and a known good earth ground (water pipe, etc.). Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage measured must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.3V AC (r.m.s.). This corresponds to 0.2mA AC (r.m.s.) 3 2.MCU and signal processor for a PAL/NTSC TV The A8899CPCNG6VU9 is an integrated circuit for a PAL/NTSC TV. A MCU and a TV signal processor are integrated in a 64-pin shrink DIP package. The MCU contains 8-bit CPU, ROM, RAM, I/O ports, timer/counters, A/D converters, an on-screen display controller, remote control interfaces, IIC bus interfaces and the Closed Caption decoder. The TV signal processor contains PIF, SIF, Video, multi-standard chroma, Sync, RGB processors. ◆ A8899CPCNG6VU9 MCU+OSD+CCD+ TV Processor controller with Software inside. ◆ 24C08 Non Volatile memory(EEPROM) ◆ STV9325 Vertical deflection system output circuit. ◆ TDA7263 Audio Output ◆ SC6122 Remote Controlled Transmitter. TOSHIBA G8 chassis color TV block diagram Speaker AV Input/Output Audio Out ANT Tuner MEMORY SA Sound Process MCU , PIF/SIF, Video ,Chroma, Sync, RGB processors, H./V. driving pulse CRT Drive CR V.OUT H.OUT IR transmit IR receive Power Supply 4 3. Definition of A8899CPCNG6VU9 Pin NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Pin name X-ray Thermal resistance KEY VSS RESET XOUT XIN TEST VDD VSS TV DEF AGND FBP in H out HAFC 1 V saw V out AVcc(8V) TV A GND Cb in EW out Cr in Ext AU1 in C/V3 in Y/V2 in ALC Filter V1 in ABCL AU out1(ATT) AU out2(ATT) TV out/FM radio SIF out Ext AU2 in H correct/SIF in DC NF I/O I/O Out I/O I/O Out In In In Out Out In Out In In In In In In In Out Out Out Out In In Out 35 PIF PLL - 36 37 38 IF Vcc 5V Reg Fil AU monitor out1 - 39 40 41 42 43 44 45 IF AGC IF GND IF in IF in RF AGC Black Det SVM/Monitor In In 46 47 48 49 50 51 APC Filter YC Vcc 5V EHT in DVCC R out G out - In Out Out Function X-ray Thermal resistance Key input GND connection Reset signal input 8 MHz oscillator connecting 8 MHz oscillator connecting GND connection 5V power supply GND connection GND yerminal for TV DEF block Input terminal for FBP Output terminal for Horizontal driving pulse Terminal to be connected capacitor for H AFC filter Terminal to be connected capacitor to generate Vsaw signal Output terminal for Vertical driving pulse Vcc terminal for DEF,RGB,Audio out and PIF out circuit GND terminal for TV block Input terminal for Cb signal output terminal for EWsignal Input terminal for Cr signal Input terminal for Audio1 signal 1 Input terminal for Chroma or Video signal Input terminal for Video signal2 or Y signal Terminal to be connected capacitor for ALC(Audio Level Control) Input terminal for Video signal.(Input leave = 1 Vp-p) Input terminal for ABL/ACL control Output terminal 1 for Audio signal Output terminal 2 for Audio signal Output terminal for detected PIF signal or FM radio Output terminal for 1bit DAC, detected SIF signal or audio monitor out 2. Input terminal for External Audio signal 1 Input terminal for H correction and 2nd SIF Terminal to be connected capacitor for DC Negative Feedback from SIF Det output Terminal to be connected with loop filter for PIF PLL.This terminal voltage is controlled PIF VCO frequency. Vcc terminal for IF circuit. Supply 5V. Terminal to be connected capacitor for stabilizing internal bias. Output terminal for External Audio signal or TV audio signal selected by BUS(Audio SW) Terminal to be connected with IF AGC filter. GND terminal for IF circuit. Input terminals for IF signals. Input terminals for IF signals. Output terminal for RF AGC control level. Terminal to be connected with Black Det filter for black stretch. Output terminal for monitor function. Also output terminal for SVM signal selectable through IIC bus. Terminal to be connected with APC filter for chroma demodulation. Vcc terminal for Y/C circuit EHT input Vcc terminal for digital block Output terminal for R signal. Output terminal for G signal. 5 52 53 54 55 56 B out TV DGND up AGND up AVDD VIDEO1/2 Out Out 57 58 59 60 61 62 63 64 SDA1 SCL1 50/60Hz control PWM MUTE H.SYNC REMOTE POWER I/O I/O I/O I/O I/O I/O I/O I/O Output terminal for B signal. GND terminal for digital block. GND for Oscillator circuit Vdd for Oscillator circuit Supply 5V TV=0,AV1=OPEN,AV2=5V IIC-BUS SDA1 IIC-BUS SCL1 50/60Hz PWM MUTE Horizontal sync signal input Remote controller signal input Power control & Check, On=Hi-Z(input),Off=L(output) 4. Remote Control Circuit Diagram and Function A.User Remote OPTION 56 40 45 49 4D 4C 03 07 0B 0F 1B 1F 02 06 0A 0E 12 16 1A 1E 01 05 09 0D 11 00 04 08 0C 10 14 NO. Code Name TV Mode 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 0 1 2 3 4 5 6 7 8 9 CCD -/-MENU SYS QV 0 1 2 3 4 5 6 7 8 9 CCD 1-Menu switch System Quick View Video PP → ∣ P∣ ← CUSL CUSH Diode User Remote 40 BF Pin15 6 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 10 11 12 14 16 1A 1B 1E 1F 40 45 49 4C 4D 56 MUTE EyeCare POWER TV/AV DISPLAY V+ P+ VPService SLEEP CALE ZOOM MSG LOCK Mute/unmute EyeCare Power on/off TV/AV Status Recall Volume +/Menu Item adjust(increase) and confirm Channel +/Menu Item select Volume -/Menu Item adjust(decrease) Channel -/Menu Item select Service in Sleep Calendar Screen zoom/wide Message Lock B.Service Remote CUSL CUSH Diode NO. Code Name TV Mode 01 02 11 12 13 00 01 0A 0B 0C G-DRV B-DRV MUTE3 MENU ↑ G DRIVE B DRIVE To set the screen into a horizontal line. MENU ITEM SELECT UP 14 0D ↓ ITEM SELECT DOWN 15 0E ← Menu Item adjust(decrease) 16 0F Menu Item adjust(increase) 17 18 19 20 21 10 11 12 13 14 → EWP EWPS EWT EWTS POWER Service Remote 8E 8E Pin6,7,8,12 60HZ EW-parabola adjustment 50HZ EW-parabola adjustment 60HZ EW T-Distortion 50HZ EW T adjustment Power / Stand-by 7 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 42 44 45 46 48 49 50 51 58 60 61 62 63 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 29 2B 2C 2D 2F 30 31 32 39 3B 3C 3D 3E HPOS OSD M-MODE ON EWCT WIDS VPOS HIT HPS VPS RCUT RCUT + GCUT GCUT + BCUT BCUT + HITS VLIN EWCB BRTS D-Mode ON/OFF VCEN POS UP POS DOWN Shopout S-PVOC BUS OFF VSC VLIS AGC TV IC ADJUST 60Hz HORIZONTAL PHASE OSD POSITION ADJUSTMENT M-MODE ON 60HZ EW Top-corner 50HZ WIDS 60Hz VERTICAL PHASE 60Hz VERTICAL AMPLITUDE 50Hz HORIZONTAL PHASE 50Hz VERTICAL PHASE R CUT adjust(decrease) R CUT adjust(increase) G CUT adjust(decrease) G CUT adjust(increase) B CUT adjust(decrease) B CUT adjust(increase) 50Hz VERTICAL AMPLITUDE 60Hz VERTICAL-LINEARILTY 60HZ EW bottom-corner Sub Bright D-Mode ON/OFF switch Vertical Centering Position Up Position Down Shop-out LOGO ADDRESS BUS OFF 60Hz VERTICAL-S CORRECTION 50Hz VERTICAL-LINEARILTY RF-AGC White balance automatic adjustment 5.Service Controlled Function The Service mode is entered by pressing the “D-MODE ON/OFF” key when the TV is in ON condition,”D” is displayed on the screen.. Press the “POWER” key to exit Service mode. Note:How to use user remote enter Service mode? Press “MENU”→ “ 6” → “ 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 d)GCUT +: Green cut-off value increase e)GCUT -: Green cut-off value decrease 009 GDRV f)BCUT +: Green cut-off value increase 40 g)BCUT -: Green cut-off value decrease 01000000 h)Press the key again to return to the normal picture. i)GDRV -: Green drive j) → : value increase k) ← : value decrease l)BDRV +: Blue drive m) → : value increase n) : value decrease (2)Picture and AGC service adjustment The items within the Picture 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 Picture menu are: a) VCEN: 60Hz VERTICAL PHASE D b) HPOS: 60Hz HORIZONTAL PHASE c) VPOS: 60Hz VERTICAL PHASE fine adjustment 043 VCEN 3A 00111010 8 d) HIT: 60Hz VERTICAL AMPLITUDE e) HITZ: 60Hz ZOOM VERTICAL AMPLITUDE f) HITW: 60Hz WIDE VERTICAL AMPLITUDE g) VLIN: 60Hz VERTICAL-LINEARILTY h) VSC: 60Hz VERTICAL-S CORRECTION i) EWP: 60Hz Parabola Adjustment j) EWPZ: 60Hz ZOOM Parabola Adjustment k) EWPW: 60Hz WIDE Parabola Adjustment l) EWT: 60Hz T-Adjustment m) EWCT: 60Hz Top-corner Adjustment n) EWCB: 60Hz bottom-corner Adjustment o) WID: 60Hz HORIZONTAL SIZE p) HPS: 50Hz HORIZONTAL PHASE q) VPS: 50Hz VERTICAL PHASE r) HITS: 50Hz VERTICAL AMPLITUDE s) VLIS: 50Hz VERTICAL-LINEARILTY t) VSS: 50Hz VERTICAL-S CORRECTION u) EWPS: 50Hz Parabola Adjustment v) EWTS: 50Hz T-Adjustment w) WIDS: 50Hz HORIZONTAL SIZE x) RAGC:Tuner AGC. (3)Option set 1)OPT OPT Bit Function Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 The algorithm of ASM The algorithm of ASM VT Down of AFT when No Signal Fjp_bb_v_freq Fjp_digital_aft V MUTE V-MuteOn/Off when CH changes Fvmute_type During POS change Fjp_menu_background Status “ 0” ASM doesn't judge IFLOCK with case 4 ASM doesn't judge AFT area with case 4 no use C_BB_V_FREQ_313H no use Off Y-MUTE no use Status “ 1” ASM judge IF LOCK with case 4 ASM judge AFT area with case 4 use C_BB_V_FREQ_312_5H use On RGB-CUT Off DC use Status “ 0” no use no use normal no use AV status memory multi color system p3 no use Status “ 1” use use inverse use only TV while power on only358ntsc p2 use Status “ 1” add special process for mute refresh the registers of FS tuner at the interval of 256ms 1S delay power on must use remote control to open TV use use mute 35%(set bit6 of register 0x1e of 2in1 to 1) 2)OPT1 OPT1 Bit Function Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Fjp_calendar Fjp_eyecare Fjp_tint Fjp_screen Fjp_rf_pwron Fjp_ntsc358 Fjp_uhf Fjp_message 3)OPT2 OPT2 Bit Function Bit7 Bit6 Fjp_mute_process Fjp_refresh_tuner Status “ 0” no special process no refresh Bit5 Bit4 Fjp_pwr_delay Fjp_power_option nouse stand by status Bit3 Bit2 Bit1 Bit0 Fjp_woofer Fjp_ta1343n Fav_chg_mute Fslice_level(use to control the seventh bitof2in1 0x1e register) no use no use not mute 40%( set bit6 of register 0x1e of 2in1 to 0) 4)OPT3 OPT3 Bit Function Bit7 Bit6 6:9/4:3Display VPOS range Status “ 0” no use 00~07 Status “ 1” use 00~0F 9 Bit5 Fjp_pos_av_option no use using local pos key to enter AV while no local TV/AV key Bit4 Bit3 Bit2 Fjp_mute_exmute Fjp_50_60hz_control Fjp_panel_power no use no use panel power key is permitted while panel lock use use panel power key is forbidden while panel lock Bit1 Exmute while pos change Extend mode attenuation exmute output no exmute according to effect1 -5db Bit0 5)AOPT Bit AOPT Function Status “ 0” Status “ 1” Bit7-6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 No use Fjp_dvd_output Fjp_av_stereo Fjp_fm Fjp_video2 Fjp_dvd Fjp_S-video following AV1 AV mono no FM no VIDEO2 no DVD no S-video following AV2(pin56 or pin61) AV stereo use FM use VIDEO2 use DVD use S-video Bit Function Bit7 Bit6 Bit5-4 Bit3 Bit2 Bit1-0 No use ALS SW for ta1343 ALS start point No use Input attenuation No use Bit Function Bit7 Bit6 Bit5-4 Bit3 Bit2-0 Bass boost No use Woofer LPF No use Surround effect level 6)EFF1 EFF1 Status “ 0” Status “ 1” This bit must be zero off on 00:220[mv] 01:380[mv] 10:525[mv] 11:770[mv] This bit must be zero 0dB -5dB 7)EFF2 EFF2 Status “ 0” Status “ 1” off on This bit must be zero on 00:100[hz] 01:125[hz] 10:170[hz] 11:210[hz] 000:off 001:1 ….. 111:7 8)CCOR CCOR Bit Function Bit7 Bit6 Bit5-4 Bit3-0 No use Italic enable specification register No use Set menu character’s color Status “ 0” Status “ 1” No use normal italic No use 0:BLACK 1:BLUE 2:GREEN 3:CYAN 4:RED 5: MAGENDA 6:YELLOW 7:WHITE 8:BLACK 9: DARK BLUE 10:DARK GREEN and so on 9)TCOR TCOR Bit Function Bit7 Bit6 Bit5 Bit4 Bit3-0 No use Italic enable specification register Underline enable specification register No use Set menu top character’s color Status “ 0” Status “ 1” No use normal italic normal underline No use 0:BLACK 1:BLUE 2:GREEN 3:CYAN 4:RED 5: MAGENDA 6:YELLOW 7:WHITE 8:BLACK 9: DARK BLUE 10:DARK GREEN and so on 10)SCOR SCOR Bit Function Bit7 Bit6 Bit5-4 No use Italic enable specification register No use Status “ 0” No use 0:normal 1: italic No use Status “ 1” 10 Bit3-0 Set menu selected character’s color 0:BLACK 1:BLUE 2:GREEN 6:YELLOW 7:WHITE 3:CYAN 4:RED 5: MAGENDA Bit Function Bit7 Transparency enable register for the menu area Color select for the menu area Status “ 0” not assign half transparency Status “ 1” assign half transparency 0:BLACK 1:BLUE 2:GREEN 3:CYAN 4:RED 5: MAGENDA 6:YELLOW 7:WHITE not assign half transparency assign half transparency 11)ACOR ACOR Bit6-4 Bit3 Bit2-0 Transparency enable register for the highlight menu area Color select for the highlight menu area 0:BLACK 1:BLUE 2:GREEN 6:YELLOW 7:WHITE 3:CYAN 4:RED 5: MAGENDA 12)CALB CALB Bit Function Bit7 Bit6-4 Transparency enable register for calendar area Background color for the calendar area Bit3 Bit2-0 Transparency enable register for week area Background color for the week area Status “ 0” not assign half transparency Status “ 1” assign half transparency 0:BLACK 1:BLUE 2:GREEN3:CYAN 4:RED 5: MAGENDA 6:YELLOW 7:WHITE not assign half transparency assign half transparency 0:BLACK 1:BLUE 2:GREEN3:CYAN 4:RED 5: MAGENDA 6:YELLOW 7:WHITE 13)CALC CALB Bit Function Bit7-3 Bit2-0 Set the character color of calendar 0:BLACK 1:BLUE 2:GREEN3:CYAN 4:RED 5: MAGENDA 6:YELLOW 7:WHITE Bit Function Status “ 0” Bit7 Bit6 Bit5 Bit4 No use Fjp_logv_plus Fjp_logo_size Fjp_logo_tvon up middle no use Bit3 Bit2-0 Fjp_logo_nosignal Set logo color Status “ 0” Status “ 1” No use 14)LOGO LOGO Status “ 1” no use 000: black 001:blue 110: yellow 111: white down large logo display while switching on TV set logo display while no signal 010: green 011: cyan 100: red 101: magenda 15)LOGH adjust the horizontal display position of lo 16)LOGV adjust the vertical display position of logo 17UVBK LOGO Bit Function Bit7-4 Bit3-0 U BLK ADJ V BLK ADJ Status “ 0” 0: -22mV, Input DC 0: -22mV, Input DC 8: 0mV 8: 0mV Status “ 1” F: 19mV, 2.75mV/dev F: 19mV, 2.75mV/dev 18) ABCL ABCL Bit Function Bit7 Bit6 Bit5-4 Fjp_rf_agc Y Peak Limiter ACL STATR POINT Status “ 0” IF isn't mute while AV Y peak limiter on,105IRE 0:0V 01:-0.2V Bit3 Bit2 Bit1 Bit0 ABL START POINT 00: 0V ABL GAIN 00: -0.2V 01: -0.2V 01: -0.35V 10:-0.3V Status “ 1” IF mute while AV Y peak limiter off 11:-1.0V ACL OFF 10: -0.30V 10: -0.5V 11: -0.4V 11: -0.65V 19)DCBS 11 DCBS Bit Function Bit7 Bit6 Bit5 Bit4 Bit3-2 C Trap Q _Y Blanking switch No use Black stretch SW Y GAMMA Bit1-0 Black stretch start point and gain Status “ 0” Low H,V blanking on Status “ 1” High H,V blanking off Off 00:off On 01:Y gamma point 78IRE,gain-6db 10:68 IRE 11:58 IRE 00:30IRE,gain high 01:40IRE,gain high 10:50IRE,gain low 11:75IRE,gain low 20)CLTM CLTM Bit Function Bit7 Bit6 Bit5 Bit4-3 P/N ID Killer off N COMB Demodulation Phase Bit2-0 Y Delay Time 000:0ns 001: 40ns 010: 80ns 110: 240ns 111: 280ns Bit Function Bit7-6 AFC GAIN (TV mode, weak signal and Nois_Bit4=0) AFC GAIN (TV mode, strong signal and Nois_Bit4=0) AFC GAIN (AV mode) AFC GAIN (TV mode, and Nois_Bit4=1) Status “ 0” Data Description Blanking Blanking period Picture period 00: 1 1 01: 4/3 1/3 10: 2 1 11: OFF OFF Status “ 0” PAL/NTSC killer sensitivity, Normal Normal Off 00:PAL 01:NTSC1 10:NTSC2 Status “ 1” LOW Always killer off Color comb filter for NTSC. On 11:DVD 011: 120ns 100: 160ns 101: 200ns 21)HAFC CLTM Bit5-4 Bit3-2 Bit1-0 Status “ 1” 22)FLG0 FLG0 Bit Function Bit7 Bit6-5 vco adjust when position select Select f0 of chroma BPF Bit4 BPF-SW Bit3 Fvcd_spot_killer Bit2 Bit1 Bit0 Nyquist Buzz cancel No use Over mode Status “ 0” Status “ 1” enable disable 0: BPF (AV) 01: TOF1(F0=5MHZ)RF 10: TOF2(F0=6MHZ)RF 11: TOF3(F0=7MHZ)RF Normal, CVBS signal passes along BPF By pass, CVBS signal doesn't pass along BPF If BB=1, RGB out is 110 IRE off Nyquist Buzz cancel off Normal PIF over modulation switch on Status “ 0” ABCL active for OSD Status “ 1” inactive 23)FLG1 FLG1 Bit Function Bit7 Bit6 Bit5-4 OSD ABL No use (don't use it) OSD CONTRAST Bit3 Horizontal side blanking OFF Bit2 Bit1 Bit0 Fvcd_fm_band V ramp bias CW SW Normal power from Y/C VCC Off On, 92% (FBP BLK off, then internal BLK only) Wide power from IC On Bit Function Status “ 0” Status “ 1” Bit7-5 Bit4 No use MON/SVM Pin45 SVM out Monitor out 00: 95 IRE 01: 60 IRE 10: 70 IRE 11: 80 IRE 24)SVM SVM 12 Bit3-2 SVM delay 00:off Bit1-0 SVM gain 00: -7dB 01:-120ns 10:-100ns 01:-1Db 10:+5dB 11:-80ns 11:+11dB 25)UCOM UCOM Bit Function Bit7-5 Bit4-3 No use C APC DATA Bit2 Bit1-0 Set chroma APC Internal ADC Status “ 0” Status “ 1” 00: data 1-normal for black &white &NTSC 01: Data 2 10: Data 3 for PAL 11: the same as 10 disable enable use Bit 3,4 data 00:GND 01: R output 10: B output 11: Monitor RF AGC via ADC 26)SSM SSM Bit Function Bit7-6 Bit5-4 No use S Trap Frequency response Control HP/LP For M S Trap Q. for M S Trap Group Delay Control for M 00: Q = 3 00:off Bit Function Status “ 0” Status “ 1” Bit7-2 Bit1 Bit0 No use Fvcd_sync_separation level Sync slice level for weak signal 40% normal 50% low Bit3-2 Bit1-0 Status “ 0” Status “ 1” 00:OFF 01:1dB HPF 10:-3dB LPF 11:-2dB LPF 01:Q = 5 10:Q = 7 (Recommended) 11:Q = 9 01:60ns 10:90ns 11:120ns 27)SYNC SYNC 28)SYBN SYBN (Sync detecti on setting for BB On) Bit Function Bit7 Bit6 Bit5 No use Reg.19H bit7 SY-DET-1 for 889x Reg.19H bit6 SY-DET-4 for 889x Bit4 Bit3 Bit2 Bit1-0 Reg.19H bit5 0 for 889x Reg.21H bit1 SY-DET-2 for 889x Reg.21H bit0 SY-DET-3 for 889x Sel sync check mode for BB on Status “ 0” Status “ 1” 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 00:checking H-LOCK-1 flag(bit3 of r0) 01:checking flag(bit4 of r1) 1x:checking VLOCK flag (bit7 of r1) H-LOCK-2 29)SYBF SYNB (Sync detecti on setting for BB Off) Bit Function Bit7 Bit6 Bit5 No use Reg.19H bit7 SY-DET-1 for 889x Reg.19H bit6 SY-DET-4 for 889x Bit4 Bit3 Bit2 Bit1-0 Reg.19H bit5 0 for 889x Reg.21H bit1 SY-DET-2 for 889x Reg.21H bit0 SY-DET-3 for 889x Sel sync check mode for BB oFF Status “ 0” Status “ 1” 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 00:checking H-LOCK-1 flag(bit3 of r0) flag(bit4 of r1) 1x:checking VLOCK flag (bit7 of r1) 01:checking H-LOCK-2 30)SYSR SYNB (Sync detect ion settin Bit Function Bit7 Bit6 Bit5 No use Reg.19H bit7 SY-DET-1 for 889x Reg.19H bit6 SY-DET-4 for 889x Bit4 Bit3 Reg.19H bit5 0 for 889x Reg.21H bit1 SY-DET-2 for 889x Status “ 0” Status “ 1” 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 13 g for searc h/tuni ng) Bit2 Bit1-0 Reg.21H bit0 SY-DET-3 for 889x Sel sync check mode for search/tuning 00:checking H-LOCK-1 flag(bit3 of r0) flag(bit4 of r1) 1x:checking VLOCK flag (bit7 of r1) 01:checking H-LOCK-2 31)VCD0 VCDO Bit Function Bit7-6 Bit5-4 Audio Monitor Out C Trap MD Bit3 Bit2 Bit1 Bit0 Halftone Gain U/V Switch Sharpness f0 frequency Sync. skew switch Status “ 0” Status “ 1” 00:depend on Audio SW 01:TV 1X:mute 00: interlocking video SW 01: as 00 10: not interlocking C-trap off 11: not interlock C-trap on Main:OSD 30%: 70% Main:OSD 50%: 50% Cb/Cr, Cr input(#21)gain up,+3Db U/V 2.75MHz 4MHz OFF sync skew detection on Bit Function Status “ 0” Bit7-4 Bit3-2 Bit1-0 No use PIF detected output level trimming FM BPF 00: 1.05Vp-p 01:do not use 10: 2.2Vp-p 11:do not use 00: internal BPF mode 01: not use10: not use 11: external BPF mode 32)VCD1 VCD1 Status “ 1” 33)CATVM 00=STD 01=IRC 02=HRC 34)LOGO address 280-28F 290-29F logo display while switching on TV set logo display while no signal Use No.5 Service Remote press“ S-PVOC” key into LOGO address, then use No.1 Service Remote press“ ↑ /↓ ” key to select LOGO address and press “ ← /→ ” 1)A~Z alphabet A B data 41 42 C 43 D 44 E 45 F 46 G 47 H 48 I 49 J 4A K 4B L 4C M 4D alphabet data N 4E O 4F P 50 Q 51 R 52 S 53 T 54 U 55 V 56 W 57 X 58 Y 59 Z 5A 2)a~z alphabet data a 61 b 62 c 63 d 64 e 65 f 66 g 67 h 68 i 69 j 6A k 6B l 6C m 6D alphabet data n 6E o 6F p 70 q 71 r 72 s 73 t 74 u 75 v 76 w 77 x 78 y 79 z 7A 3)0~9 number data 0 30 1 31 2 32 3 33 4 34 5 35 6 36 7 37 8 38 9 39 4)Other Other : data 3A Other , data 2C ; 3B ! 21 . = > ? / ( ) @ < & _ 2E “ 22 3D # 23 3E $ 24 3F % 25 2F 28 29 40 3C 26 2D 5)Spacing and End Spacing/End Spacing data 20 key to adjustment data. End 00 35) PVHH/PVHL/PUHH/PUHL FS Tuner band set For example: Some Tuner band specification is: L:55.25-127.25 MHz(C2-B)/M:133.25-361.25 MHz(C - W+11)/H:367.25-801.25 MHz(W+13 –C69) PVHH/PVHL {[(127.25+133.25)÷2+45.75]x16-48} =2768(algorism), change to hex is 0AD0,so PVHH=0A ,PVHL=D0 PUHH/PUHL {[(361.25+367.25)÷2+45.75]x16-48}=6512(algorism), change to hex is 1970,so PVHH=19 ,PVHL=70 14 PVHH=OA PVHL=D0 PUHH=19 PUHL=70 6. Service and Design Data 007 008 Model:T011 ITEM DATA RCUT 20 GCUT 20 BCUT 20 009 010 GDRV BDRV 011 012 CNTX BRTS 013 014 BRTC COLC 015 016 TNTC COLP 40 40 7F 00 48 40 40 00 017 SCNT 0A NO. 006 018 CNTC 019 020 CNTN BRTX 021 022 BRTN COLX 023 024 COLN TNTX 025 TNTN 026 ST3 027 SV3 028 029 ST4 SV4 030 031 SVD ASSH 032 033 SHPX SHPN 034 035 UVBK ABCL 036 037 DCBS CLTM 038 039 CLVO CLVD 58 00 35 25 35 0B 35 28 20 25 18 25 25 07 35 10 88 E7 17 B7 B7 98 040 041 HBST HBSP 00 00 042 043 VBLK 00 VCEN 34 044 045 HPOS VPOS 12 03 046 047 HIT HITZ 32 08 CRT:21 SLIM A51QGV991X231 REMARK Data:2008-11-18 NO. ITEM R CUT OFF G CUT OFF B CUT OFF 075 076 077 HAFC G DRIVE B DRIVE SUB CONTRAST MAX SUB BRIGHNESS SUB BRIGHT CENTER SUB COLOR for NTSC SUB TINT CENTER SUB COLOR for PAL 078 079 080 081 082 083 084 085 V1 V25 SUB CONTRAST 086 SUB CONTRAST CENTER SUB CONTRAST MIN SUB BRIGHT MAX SUB BRIGHT MIN SUB COLOR MAX SUB COLOR MIN SUB TINT MAX SUB TINT MIN TV—3.58 SHARP AV—3.58 SHARP TV—4.43 SHARP AV—4.43 SHARP DVD SHARP CENTER ASYMMETRY SHARP SUB SHARP MAX SUB SHARP MIN U/V BLK ADJ ABL SYSTEM A part of Video data in detail The data when TV mode&SOUND SYS=M The data when YUV mode&SOUND SYS!=M The data when YUV mode&SOUND SYS=M H. BLK Start H. BLK Stop V BLK Start/Stop V CENTERING 60Hz HORIZONTAL PHASE 60Hz VERTICAL PHASE 60Hz VERTICAL AMPLITUDE Zoom VERTICAL AMPLITUDE 087 088 089 090 091 092 093 094 095 096 097 098 099 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 NOIS NDTC V50 V100 AV25 AV50 AV100 ATTV DATA AFC GAIN NOISE NOISE DET count (Weak -> Normal) 09 40 57 70 42 5A 77 68 TV VOLUME 1% TV VOLUME 25% TV VOLUME 50% TV VOLUME 100% AV VOLUME 25% AV VOLUME 50% AV VOLUME 100% To set the register of audio ATT while using ta1343n at TV or FM mo de To set the register of audio ATT while using ta1343n at VIDEO or DVD mode BASS CENTER VALUE TREBLE CENTER VALUE BALANCE CENTER VALUE WOFFER CENTER VALUE BASS MAX VALUE TREBLE CENTER VALUE WOFFER CENTER VALUE SOUND EFFECT1 SOUND EFFECT2 FLAGS FLAGS SVM Miciom Control AUDIO STEP S Trap f0 For M S Select For M SYNC Sync detection setting for BB On Sync detection setting for BB Off Sync detection setting for search/tuning Blue back hysteresis counter (BUS H sync detection) VCD0 data VCD1 data Set menu character’s color Set menu top character’s color Set menu selected character’s color Set menu’s background color Menu color option SET CALENDAR BACKGROUND COLOR CCD OSD POSITION ADJUSTMENT 68 ATAV BASC TREC BALC WOFC BASX TREX WOFX EFF1 EFF2 FLG0 FLG1 SVM UCOM AUSTP STM SSM SYNC SYBN SYBF SYSR BBCT VCD0 VCD1 CCOR TCOR SCOR ACOR CALB CALC CCD OSD REMARK 86 0F 1F 40 40 3F 39 72 72 72 40 17 46 20 10 10 04 07 07 02 44 44 44 04 0E 08 43 65 06 88 FD 00 30 15 048 049 HITW VLIN 15 0F 050 VSC 18 051 HBOW 04 052 053 HPAR 04 EWP EWPZ EWPW EWT EWCT EWCB HEHT VEHT WID WIDM EWPM OV60 HPS VPS HITS VLIS VSS EWPS EWTS WIDS OV50 RAGC 51 15 23 17 07 08 00 04 39 08 06 05 FD 02 01 FF 01 01 00 01 00 25 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 Wide VERTICAL AMPLITUDE 60Hz VERTICAL-LINEARILTY 60Hz VERTICAL-S CORRECTION H. BOW H. PAR 60Hz Parabola A 60Hz ZOOM Parabola 60Hz WIDE Parabola 60Hz T- Distortion 60Hz Top-corner 60Hz bottom-corner HORIZONTAL EHT VERTICAL EHT 60Hz HORIZONTAL SIZE 16:9 CRT HORIZONTAL SIZE 16:9 CRT Parabola OSD Vertical position for 60Hz 50Hz HORIZONTAL PHASE 50Hz VERTICAL PHASE 50Hz VERTICAL AMPLITUDE 50Hz VERTICAL-LINEARILTY 50Hz VERTICAL-S CORRECTION OSD Vertical position for 50Hz 50Hz T- Distortion 50Hz HORIZONTAL SIZE 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 001 002 003 004 005 RF AGC CCD OSDF OSDF OSD CUSL CUSH FSAD VPL VADJ SADJ LOGH LOGV LOGO ERAS CATVM WTON WOTF PVHH PVHL PUHH PUHL SOSP HPSD OTP OTP1 OTP2 OTP3 AOTP 59 51 10 40 BF C0 C1 00 07 00 0F 45 A3 00 7D EF 0A D0 19 70 10 03 17 9D B2 13 16 CCD OSD WIDTH OSD WIDTH OSD POSITION ADJUSTMENT To set remote controller's custom code(low byte) To set remote controller's custom code(high byte) FS tuner address Be used to adjust the xray protect voltage Be used to adjust the base input voltage of eyecare Be used to adjust the check speed of eyecare LOGO HORIZONTAL POSITION LOGO VERTICAL POSITION LOGO select Be used to adjust the time of thermal resistance control CATV select Turn on delay set Turn off delay set Be used to set the start frequency of VHFH band of FS tuner(high byte) Be used to set the start frequency of VHFH band of FS tuner(low byte) Be used to set the start frequency of UHF band of FS tuner(high byte) Be used to set the start frequency of UHF band of FS tuner(low byte) Position OSD adjustment DVD HORIZONTAL PHASE OPTION OPTION1 OPTION2 OPTION3 AV OPTION 7.ICs Functional Description STV9325 PIN 1 2 3 4 Function : Vertical Output PIN CONNECTIONS Input Supply Voltage Flyback Generatoy Negative Supply PIN 5 6 7 TDA7263(Stereo IC) Function : Audio Output PIN PIN CONNECTIONS PIN 1 NON INVERTING INPUT((1) 7 2 INVERTING INPUT(1) 8 3 SVR/MUTING 9 4 INVERTING INPUT(2) 10 5 NON INVERTING INPUT(2) 11 6 GND PIN CONNECTIONS V. OUT Output Stage Vcc NON. INV. IN PIN CONNECTIONS NC OUTPUT(2) +Vs OUTPUT(1) NC 8.Test Point Waveforms 2Vpp H A8891 PIN30 95Vpp 1Vpp H A8891 PIN26 95Vpp 3.8Vpp H A8891 PIN50 95Vpp 3.8Vpp H A8891 PIN51 7Vpp 3.8Vpp H A8891 PIN52 5Vpp H H CRT KR 4.5Vpp H CRT KG 1.3Vpp H CRT KB 0.7Vpp H A8891 PIN6 H A8891 PIN13 1000Vpp A8891 PIN12 23Vpp H HEATER 16 V A8891 PIN16 H V411 C V444 B 75Vpp H V444 C 9. IC Voltages A8899CPCNG-6VU9 Pin Voltage 1 2.7 2 0.1 3 5.1 4 0.0 5 5.1 6 2.3 7 2.1 8 0.0 9 5.1 10 0.0 11 0.0 12 1.1 13 2.1 14 5.5 15 4.1 16 4.9 17 7.9 18 0.0 19 1.9 Pin Voltage 20 1.9 21 2.0 22 3.9 23 2.4 24 2.5 25 0.7 26 2.7 27 4.4 28 3.1 29 3.2 30 3.0 31 3.2 32 3.9 33 2.9 34 2.2 35 2.4 36 5.0 37 2.1 38 3.1 Pin Pin 39 3.0 40 0.0 41 2.0 42 2.0 43 2.0 44 1.9 45 2.8 46 2.3 47 5.0 48 2.0 49 3.3 50 2.6 51 2.6 52 2.6 53 0.0 53 0.0 55 5.1 56 0.0 57 5.1 Pin Voltage 58 5.1 59 5.1 60 5.1 61 0.1 62 0.6 63 5.1 64 3.4 2 13.8 3 -12.7 8 11 9 23 10 11 11 0 STV9325 Pin Voltage 1 2.0 4 -13.7 5 0 6 14 7 2.0 TDA7263(Stereo) Pin Voltage 1 1.7 AC supply : 2 1.8 3 12.6 4 1.8 5 1.7 6 0 7 0 110~240V 50/60Hz 10. Other 1)Binary code change to hex Binary code 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 1 0 Hex 0 1 2 3 4 5 6 7 8 9 A 17 1 1 1 1 1 0 1 1 1 1 1 0 0 1 1 1 0 1 0 1 B C D E 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 to unlock V-CHIP if you forgot password? Press V-” key on the set to“ 00” keep then press MENU” key on the User Remote. Into V-CHIP menu, set V-CHIP password again. 3)Keyboard input: Key In 0.0-0.3V 0.3-1.0V 1.0-1.7V 1.7-2.4V 2.4-3.1V 3.1-3.8V 3.8-4.5V Key Pressed POWER Program+ ProgramVolume+ VolumeTV/AV Menu 2Vpp 18