SERVICE MANUAL 5Y18 CHASSIS

Transcription

1 SERVICE MANUAL 5Y18 CHASSIS Design and specifications are subject to change without prior notice. ( ONLY REFERRENCE) ENGINEER BY: CHECKED BY: PPROVED BY:

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3 Systems: a. North America: NTSC-M b. South America and southeast Asia: NTSC-M/PAL BG/DK/I/M/N C.Europe: PAL SECAM Power: VAC Sound systems:a. AV STEREO(TONE CONTROL optional) b. MTS STEREO(TONE CONTROL optional) Sound power: STEREO 5W5W OR 10W10W (PIN TO PIN) AV input/output: 1 F.AV 2 AV OUT 3 AV IN optional:a. ONE FULL SCART b. RCA&S-video c. RCA&YUV d. RCA&YUV&S-video Other functions: TONECONTROL/CCD/V-CHIP/LOGO/GAME/calendar /blue screen /lock/time -3- PDF 文件使用 "pdffactory" 试用版本创建

4 Chassis Block Diagram -4-

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19 Service Adjustments 1 Please notice the following before Servicing 1-1 The main power is 90~260V/50/60Hz, Please be careful when you debug and equip. 1-2 Don t short any two soldering points, which should not be shorted and don t touch any components, which should not be touched. 1-3 Please disconnect the power plug from the wall outlet before servicing. 1-4 For safety reasons, all components equipped or replaced should be identical with BOM. 1-5 Before alignment, ensure the TV set has been heated for at least 30 minutes and degauss the CRT thoroughly with demagnetizer. 1-6 The data of EEPROM must be stored before the adjustment for main chassis. 2 Tools and equipments for adjustment: 2-1 small - screwdriver 2-2 screwdriver without inductance 2-3 Pattern Generator 2-4 Digital Voltmeter 2-5 DC Regulated power supply 2-6 Sweep Signal Generator MHz 2-channel Oscilloscope. 2-8 Signal condition(factory debug signal): Picture Item Logo Pattern carrier 1 CHN-1CH PHILIPHS Picture System PAL I 2 WE-6CH MHz Red filed PAL BG 3 CHN-12CH MHZ Grey/ Half color bar SECAM-D/K Sound mode 1KHz L: R:400HZ BTSC 4 CHN-13CH Cross hatch PAL D/K 1KHZ 5 USA-3CH Color bar NTSC M 1KHZ Monoscope PAL I 7 WE-S20CH Half color bar PAL BG A:BTSC B:MUSIC C:1KHZ A:400HZ B:1KHZ Remark A2 STEREO /TELETEXT I NICAM STEREO A:BTSC PHILIPHS B/G PAL BG B:MUSIC Picture NICAM C:1KHZ Cross hatch PAL DK BTSC 16: Cross hatch NTSC M BTSC MTS 11 USA-31CH Monoscope NTSC M 1KHZ -19-

20 Service Adjustments 3 Adjust for main IC 3-1 Power check Item Main voltage TESTING OF EACH VOLTAGE Rating Power voltage voltage 1 B Power supply 130V±1V 70V C532 2 TFA Power supply (load) 20V±2V C582 3 UOC Main resistance 16V±1V C542 4 Memorizer power supply 5V±0.5V 5V±0.5V W722 5 Tuner power supply 5V±0.5V 0V TUNER 6 Tune voltage 33V±0.5V C708 7 Vertical power supply 26V±0.5V 0V C452 8 RGB power supply 190V±10V 0V C AGC adjustment Test position (positive pole of the capacitor) Method : Receive 60dB MHZ monoscope pattern, after pressing PROD key three times TV SET will go to factory mode. Then pressing the MUTE key three times to go to MENU3, select RF AGE with PROG/- key. Pressing VOL- key to change its value. Adjust W101 to 4V or just get the clearest picture. At last press PROD key to exit the factory mode. 4 COMPLETE MACHINE GENERAL ADJUSTMENT: 4-1 Set TV to factory mode before aging line. Method:Press PROD key to entering factory menu, Select the item by PROG and PROG- keys, Adjust it by VOL and VOL- keys, Press PROD key to exit factory mode! 4-2 Focus Adjustment Receive monoscope pattern Set TV to work in dynamic status Adjust the focus knob of FBT to get the clearest picture. 4-3 Screen Voltage Adjustment : Set TV at TV / STANDARD mode,no signal input; Press key PROD two times to enter factory mode; Press MUTE button on Remote Control ; Adjust the screen knob of FBT to set the horizontal line just be seen, then press MUTE button to return other factory menu. -20-

21 Service Adjustments 4-4 Horizontal Center and EW Adjustment Receive 50HZ cross hatch pattern. Set TV standard status. Adjust H.PHASE to obtain picture s horizontal center at the center of CRT screen in factory MENU4. Receive cross hatch pattern. Set TV standard status,.adjust E/W DC E/W TILE E/W AMP E/W TOP E/W BOTTOM to obtain picture s horizontal redisplay ratio more than 90% in factory MENU4. E/W DC 50HZ Horizontal amplitude E/W AMP 50HZ EW width E/W TOP 50HZ EW upper corner parabola E/W BOTTOM 50HZ EW lower corner parabola E/W TILE 50HZ EW trapezium H. PHASE 50HZ Horizontal center adjustment Receive 60HZ cross hatch pattern. Set TV standard status, Adjust NT. H. PHASE to obtain picture s horizontal center at the center of CRT screen in factory MENU1. Adjust NT.E/W DC NT.E/W AMP NT.E/W TOP NT.E/W BOT to obtain picture s horizontal redisplay ratio more than 90% in factory MENU4. NT.E/W DC NT.E/W AMP NT.E/W TOP NT.E/W BOT NT. H. PHASE 60HZ Horizontal amplitude 60HZ EW width 60HZ EW upper corner parabola 60HZ EW lower corner parabola 60HZ Horizontal center adjustment 4-5 Vertical size and Linearity Adjustment Receive 50HZ monoscope PATTERN. Set TV standard status. Adjust V.LINE V.SC and SHIFT to obtain vertical center at the center of CRT screen in factory MENU Receive 50HZ monoscope PATTERN. Set TV standard status. Adjust V.SIZE to obtain picture s vertical redisplay ratio more than 90% in factory MENU -21-

22 Service Adjustments V.LINE V.SC SHIFT V.SIZE 50HZ Vertical linearity 50HZ Vertical S-correction 50HZ Vertical center 50HZ Vertical amplitude Receive 60HZ monoscope PATTERN. Set TV standard status. Adjust NT.V.LINE and NT.V.SC to change vertical size. Adjust NT.SHIFT to obtain vertical center at the center of CRT screen in factory MENU Receive 60HZ monoscope PATTERN. Set TV standard status. Adjust NT.V.SIZE to obtain picture s vertical redisplay ratio more than 90% in factory MENU NT.V.LINE 60HZVertical linearity NT.V.SC NT.SHIFT 60HZ Vertical S-correction 60HZ Vertical center NT.V.SIZE 60HZ Vertical amplitude If necessary, adjust Horizontal Center and EW again. 4-6 OSD position adjustment: Receive 50/60HZ cross hatch pattern. Set TV standard status. Adjust OSD H.POSI.and OSD V.POSI item to obtain menu OSD at the center of CRT screen in factory MENU1; 4-7 White Balance Adjustment Set TV AV status and receive Black-White signal, connect the line to XS703,then go to auto white balance adjustment; Disconnect the line when the adjustment is OK; White Balance Adjustment ( repairing) Set TV AV status and receive Grey-White signal The one sampling tube of CRT color analyzer (CA-100) covers on grey signal and the another covers on white signal; Go to factory mode,. Obtain Grey signal X=281, Y=311 by adjusting R-BIA GBIA B-BIA. Obtain White signal X=281, Y=311 by adjusting R-DRV G-DRV B-DRV. Obtain both X=281 and Y=311 by adjusting the two status repeatedly Be this machine to take When the function of YUV and white balances be partial to, need the white balance adjustment of carry on the -22-

23 Service Adjustments appearance of YUV. Method:Enter the factory menu, adjust the YUV B- Y DC, the YUV R- Y DC to adjust to try again and again, make the white equilibrium the best. 4-8 CONVERGENCE ADJUSTMENT: Receive a dotted pattern. Set the TV receiver dynamic; Loose the convergence magnet clamper and make red with blue dots at the center of the screen by rotating (R, B) static convergence magnets; Align Red/Blue with green dots at the center of the screen by rotating (RB-G) static convergence magnet; Remove the DY wedges and slightly tilt the deflection yoke horizontally and vertically to obtain the good edge convergence. Fix them after the good overall convergence got Fix the convergence magnets in turn of Left-Low, Right-Low Right-Up, Left-Up If purity error is found, adjust color purity. 4-9 SUB BRIGHT ADJUSTMENT: Receive the gray scale. Get into the menu of factory mode. Then adjust the SUB..BRI option to get a scale to be seen a little brightness(only one-two rows can be seen). 5 E2PROM Adjustment( Department of engineering adjustment) 5-1 E2PROM Initializtion: -23-

24 Service Adjustments When in repairing, we can replace E2PROM by other empty or unempty E2PROM,but you must initialize E2PROM to avoid unknown things When in manufacturing, first you read the data from a master E2PROM 24C08, then write to other E2PR0M 24C Function adjustment ( Department of engineering adjustment) Press remote control button PROD to entering factory adjust mode. Press MUTE button to entering MENU3, press MUTE button again after setting STEUP SELECT to 1, set up its function according as the order form. FACTORY MENU DESCRIPTION (5Y18SEA) MENU0 0 V.SIZE Vertical amplitude (0~127) 1 V.LINE Vertical linearity (0~31) 2 V.SHIFT Vertical shift(0~15) 3 V.SC Vertical SC-correction (0~31) 4 NT.V.SIZE Vertical amplitude offset of NTSC to PAL (-31~32) 5 NT.V.LINE Vertical linearity offset of NTSC to PAL (-7~8) 6 NT.V.DC Vertical out DC level offset of NTSC to PAL (-7~8) 7 NT.V.SHIFT Vertical shift offset of NTSC to PAL(-7~8) 8 NT.V.SC Vertical SC-correction offset of NTSC to PAL (-7~8) MENU1 0 H.PHASE Horizontal center (0~31) 1 NT.H.PHASE Horizontal center offset of NTSC to PAL (-7~8) 3 H.BLK.LEFT Horizontal Left Blanking adjust (0~7) 4 H.BLK.RIGHT Horizontal Right Blanking adjust (0~7) 5 OSD H.POSI. OSD horizontal position (0~63) 6 OSD V.POSI. OSD vertical position (0~31) 7 SCR.H.POSI SCR horizontal position (0~63) 8 OSD. CONT. OSD contrast (0~7) -24-

25 Service Adjustments MENU2 0 R-Y/B-Y G.BL R-Y/B-Y Amplitude adjust (0~15),Default value 8 1 R-Y/B-Y ANG. R-Y/B-Y Demodulation angle adjust(0~15),default value8 2 B-Y DC LEVEL White balance (0~15),Default value8; 3 R-Y DC LEVEL White balance (0~15),Default value8; 4 PAL/M/N B-Y PAL/M/N White balance (0~15),Default value8; 5 PAL/M/N R-Y PAL/M/N White balance (0~15),Default value8; 6 YUV B-Y DC YUV White balance (0~15),Default value8; 7 YUV R-Y DC YUV White balance (0~15),Default value8; 8 G-Y AMP G-Y Amplitude adjust(0~15) 9 G-Y ANGLE G-Y Angle option0:240,1:253 MENU3 0 SETUP SELECT MENU4~22 switch option(0:lost/1:ok) 1 RF.AGC RF.AGC adjust (0~63) 2 VOLUME OUT Volume out adjust (0~127);Make sure stereo is turn on 3 BTSC IC SEL. BTSC IC selection (0:LA72700/1:TDA9850) 4 INPUT LEVEL TDA9850 Amplitude of input signal (0~15) TDA9850 must be checked 5 SPECTRAL TDA9850 Separate of high frequency (0~63) TDA9850 must be checked 6 WIDEBAND TDA9850 Separate of low frequency (0~63) TDA9850 must be checked 7 ALC/LEVEL ALC selection and SAP output amplitude(0:alc OFF LEVEL1/1:ALC ON LEVEL1/ 2:ALC OFF LEVEL2/3:ALC ON LEVEL2) LA72700 must be checked 8 H.SIZE COMP Horizontal size compensate (0~7); MENU4 0 E/W DC E/W DC level (0~63); 1 E/W AMP E/W amplitude (0~63); 2 E/W TILT E/W Tilt (0~63); 3 E/W TOP E/W top corner correction (0~15); 4 E/W BOTTOM E/W bottom corner correction (0~15); 5 NT.E/W DC NTSC E/W DC level (-7~8); 6 NT.E/W AMP NTSC E/W amplitude (-7~8); 7 NT.E/W TOP NTSC E/W top corner correction (-7~8); 8 NT.E/W BOT NTSC E/W bottom corner correction (-7~8); 9 E/W COR.SW Control range of corner correction 0:STRONG SIDE,1:WEAK SIDE -25-

26 Service Adjustments MENU5 0 ZOOM V.SIZE Vertical size of magnified screen (0~127) Make sure ZOOM OPTION is 1 1 ZOOM DC ZOOM E/W DC level (0~63); 2 ZOOM AMP ZOOM E/W amplitude (0~63); 3 ZOOM TOP ZOOM E/W top corner correction (0~15); 4 ZOOM BOTTOM ZOOM E/W bottom corner correction (0~15); 5 WIDE V.SIZE Vertical size of wide screen(0~127);make sure ZOOM OPTION is 1 6 WIDE DC WIDE E/W DC level (0~63); 7 WIDE AMP WIDE E/W amplitude (0~63); 8 WIDE TOP WIDE E/W top corner correction (0~15); 9 WIDE BOTTOM WIDE E/W bottom corner correction (0~15); MENU6 0 STEREO OPT. Volume control option(0:decode inside control/1:single PWM/2:double PWM/3:LV1116 control) 1 LV1116 GAIN LV1116 Gain control(0~7) 2 SUR. MODE Surround mode option(0~7)(6is the same as 7) 3 WOOFER GAIN Woofer gain control(0~7) 4 LV1116 PORT LA1116 Input port option(0:2input/1:3input) 5 MUTE LEVEL PMUTE Mute output level option(0:high level /1:low level) 6 VOLUME OPT. Option of volume linearity control(0:fool control mode /1:four parts equality and linearity control mode) 7 VOLUME 25 Four parts equality and linearity control mode,volume 25,LA7650 output (0~63) 8 VOLUME 50 Four parts equality and linearity control mode,volume 50,LA7650 output (0~63) 9 VOLUME 75 Four parts equality and linearity control mode,volume 75,LA7650 output (0~63) MENU7 0 S.TRAP TEST Narrow-band sound trap wave frequency adjust (0~7);Default : 4 1 S.TRAP.SW Inside/outside trap wave selection (0:inside 1:outside),Default : 1 2 VOL. FILTER Volume control and filter function(0:no 1:yes );commonly select 0 3 A.MONI.SW Pin 2 output Selection(0:TV audio-output 1:TV audio-output ;AV audio-output) 4 4.5M OPTION 4.5M Sound system option(1:yes / 0:no ) -26-

27 Service Adjustments 5 5.5M OPTION 5.5M Sound system option (1:yes / 0:no ) 6 6.0M OPTION 6.0M Sound system option(1:yes / 0:no) 7 6.5M OPTION 6.5M Sound system option(1:yes / 0:no) 8 THAI DUAL Thai dual option(1:yes / 0:no) 9 TFA9843A OPT TFA9843A option(1:yes/ 0:no) MENU8 0 AUTO OPTION Color system AUTO option(1:yes / 0:no ) 1 AUTO1/2 OPT. Color auto identify option (0:auto identify PAL/NTSC3.58/NTSC4.43 / 1: auto identify PAL-M/PAL-N/NTSC3.58) 2 PAL OPTION PAL Color system option(1:yes/ 0:no ) 3 PAL-M OPTION PAL-M Color system option(1:yes / 0:no) 4 PAL-N OPTION PAL-N Color system option(1:yes/ 0:no) 5 N3.58 OPTION NTSC3.58Color system option(1:yes / 0:no) 6 N4.43 OPTION NTSC4.43Color system option(1:yes/ 0:no) MENU9 0 C.TRAP TEST Color trap wave control (0~7) 1 C.BPF TEST Color BPF control (0~3) 2 C.KILLER OPE Color killer start setting (0~7) 3 PAL APC SW PAL APC switch (0~1);default value 0 4 APC OFFSET APC OFFSET current(0~7) 5 C.VCO.ADJ. NTSC/PAL-M/PAL-N Adjust VCO frequency(0~7) 6 C.BYPASS Bypass color band-pass filter(0:no/1:yes)instruction: 1: throw; 0:hold MENU10 0 SEARCH TYPE South America tune mode(1:yes /0:no) 1 TUNER OPTION Tuner mode option (0:voltage/1: frequency) 2 VL/VH FREQ. Tuner VL/VH frequency selection :(VL highest frequency VH lowest frequency)/ mhz 3 VH/UHF FREQ. Tuner VL/UHF frequency selection:( VL highest frequency UHF lowest 4 BAND OPTION Tuner UHF carry mode selection (0: B / 1: B) 5 CATV BAND South America tune mode CABLE(0:STD / 1:STD IRC and HRC) 6 SEARCH SPEED Search speed option(0:low mode/1:fast mode) 7 SEARCH CHECK Auto search check when cold power on (1:yes/0:no) -27-

28 Service Adjustments MENU11 0 AV OPTION AV input option(0~3) 1 S-VIDEO OPT. S-Video input function option(0:no 1:yes) 2 YUV OPTION YCbCr input function option(1:yes /0:no) 3 DVD OPTION DVD option(1:yes /0:no) DVD CHANNEL DVD channel option(0~3)please notice the following (1)AV OPTION=1 and DVD OPTION=1 0: DVD(VIDEO) S-VIDEO YUV 1: no 2: VIDEO DVD(S-VIDEO) YUV 3: VIDEO S-VIDEO DVD(YUV) (2)AV OPTION=2 and DVD OPTION=1 0: DVD(VIDEO) VIDEO S-VIDEO YUV 1: VIDEO DVD(VIDEO) S-VIDEO YUV 2: VIDEO1 VIDEO2 DVD(S-VIDEO) YUV 3: VIDEO1 VIDEO2 S-VIDEO DVD(YUV) (3)AV OPTION=3 and DVD OPTION=1 0: DVD(VIDEO) VIDEO1 VIDEO2 S-VIDEO YUV 1: VIDEO1 VIDEO2 DVD(VIDEO) S-VIDEO YUV 2: VIDEO1 VIDEO2 VIDEO3 DVD(S-VIDEO) YUV 3: VIDEO1 VIDEO2 VIDEO3 S-VIDEO DVD(YUV) MENU12 0 POWER OPTION Power original state option(0:off / 1.:remember / 2 3:on) 1 POWER LOGO Power logo option (1/0);make sure its value is 1 after factory setting 2 SCREEN OPT. Screen option of power on/off (0:no / 1:on / 2:off / 3:both) 3 SCREEN TYPE Screen type option (0:normal/1:fade in fade out) 4 SCREEN TIME Screen waiting time selection (0~7seconds) 5 V.MUTE P.OFF Disconnect audio output to CRT before POWER OFF(1:yes/0:no) 6 DISCHARGE DC power off discharge control(0:no/1:yes) 7 UHF/DEGAUSS LA76933 pin 39 th function option(0:uhf control/1:degauss control) -28-

29 Service Adjustments MENU13 0 LINE MODE B/W BALANCE,Picture mode of line and full screen changing(1:yes/0: no) 1 GRAY MODE Inside test signal output level setting (0:white 70%/ 1:ash 15%),Default0 2 EVERY DAY Time menu availability option(1:every time /0:one time) 3 HOTEL MODE Hotel mode (1:yes/0: no) 4 HOTEL VOLUME Hotel mode largest volume control (0~100) 5 ON POSITION Hotel mode program option(0~255) 6 ON TV/AV Hotel mode TV/AV option(0:tv/1:av) 7 ZOOM OPTION Zoom option(1:yes /0:no) 8 CHILD LOCK Child lock function option (1:yes /0:no) MENU14 0 GAME-MONEY Game-money function option(1:yes/ no) 1 GAME-CRAB Game-crab function option(1:yes/ 0:no) 2 GAME-TETRIS Game-tetris function option(1:yes/ 0:no) 3 GAME-888 Game-888 function option (1:yes/ 0:no) 4 LOTTERY Game-lottery function option(1:yes/ 0:no) 5 CALENDAR Calendar function option (1:yes/ 0:no) 6 BIO-CLOCK Bio-clock function option(1:yes/ no) 7 PHONE BOOK Phone book function option(1:yes/ 0:no) MENU15 0 ENGLISH OSD English OSD (1:yes /no) 1 CHINESE OSD Chinese OSD (1:yes /0:no) 2 INDONESIA Indonesia OSD(1:yes /0:no) 3 SPANISH OSD Spanish OSD(1:yes /0:no) 4 PORTUGAL OSD Portugal OSD (1:yes /0:no) 5 ITALIAN OSD Italian OSD(1:yes /0:no) 6 VIETNAMESE OSD Vietnamese OSD (1:yes /0:no) 7 FRANCE OSD France OSD(1:yes /0:no) 8 THAI OSD Thai OSD (1:yes /0:no) -29-

30 Service Adjustments MENU16 0 BLK PROCESS Black option in process of channel changing(1:yes /0:no) 1 BACK COLOR Back color option in mute condition(0:blue / 1:black) 2 POSITION L/R OSD position L/R (0:left / 1:right) 3 SCREEN SAVER Screen saver option(0:logo only;1:the 1th row character;2:the 2th row character;3:both rows ) 4 SAVER TOP Screen saver top (0~255) 5 SAVER BOTTOM Screen saver bottom(0~255) 6 SAVER LEFT Screen saver left (0~255) 7 SAVER RIGHT Screen saver right(0~255) MENU17 0 HALF TONE Half tone adjust(0~3) 1 MENU BACK Menu background (1:yes /0:no) 2 M.BACK COLOR Menu back color (BLK:back/BLU:blue/GRN:green/CYN:cyan/RED:red/MAG: purple/yel:yellow/ WHI:white) 3 MENU H.TONE Menu half tone option(0:no/1:half) 3 MENU ICON Menu icon option(0:yes/1:no) 5 ICON BACK Menu icon back (1:yes /0:no ) 6 ICON H.TONE Menu icon half tone option (0:no /1:half) 7 PROMPT TYPE Menu prompt type option(0:single / 1:double) MENU18 0 V.COMP Vertical compensate adjust(0~3) 1 V.SEPUP Vertical synchronization separate sensitive enhance setting (0:normal mode/ 1:father mode ),Default : 1 2 SYNC.SEP.SEN Vertical synchronization separate sensitive gate level setting (0~7),Default : 3 3 V RESET TIMING Vertical reset timing(0:normal 1:0.25H phase shift),default : 0 4 C.D.MODE Vertical count mode(0~7),default0 5 V.TRANS Vertical athwart data transfer,0:normal,1:data transfer mode; 6 V BLK SW Vertical blanking switch (0:normal mode 1:wide mode),default : 0 7 FBPBLK. SW Horizontal blanking switch(0:come from inside logic 1:come from inside logic/fbp),default : 1-30-

31 Service Adjustments MENU19 0 SUB. CONT. Sub-contrast (0~31) 1 SUB. COLOR Sub-color adjust (0~15) 2 SUB. SHARP Sub-shape adjust (0~31) 3 SUB. TINT Sub-tint adjust (0~63) 4 BRT.ABL.DEF Auto-bright control (0:on / 1:off) 5 MID.STP.DEF Auto-bright center control (0:on / 1:off) 6 BRT.ABL.TH Auto-bright gate control (0~7) 7 OVER.MOD.SW Over modulate function switch (0:off 1:on) 8 OV.MOD.LEVEL Over modulate level(0~15) MENU20 0 CORING W/DEF Coring noise control(0:off 1:least Plus 3:most plus) 1 PRE SHOOT Bright signal pre-edge shoot adjust (0~3) 2 OVER SHOOT Bright signal back edge shoot adjust (0~3) 3 Y GAMMA STA. Y GAMMA correction start setting(0:none 1:High 3:Low) 4 DC.REST DC reset option (0:100% 1:107% 2:113% 3:129%) 5 WPL OPE. WPL Operation point option(0~3)0:default,1:high,3:low 6 SH ADJUST Shape attribute adjust(0,normal;1,self-adapt) 7 BLK.STR.OPT. Black level stretch screen display option(1:yes /0:no) 8 BLK.STR.STA. Black level stretch start setting(0:high 2:low 3:none) 9 BLK.STR.GAIN Black level stretch plus adjust(0~3) MENU21 0 AFC GAIN AFC gain (0:AUTO / 1:HIGH),Default : 0 1 VIF.SYS.SW Picture mid-frequency setting(0:38.0m 1:38.9M 2:39.5M 3:45.75M) 2 VIDEO.LEVEL Video demodulation output level(0~7);default : 4 3 V.LEV.OFFSET Video demodulation output offset level (0~3) 4 RGB TEMP SW. RGB output temperature compensate switch(0:off 1:on) 5 VCO FREQ. Picture mid-frequency VCO frequency adjust(0~255) 6 VCO ADJUST VCO Correction(0~15) 7 SVO OR FSC Pin 52 output signal(0:video output 1:Color Sub-carrier wave output) Default : 0 8 BLANK DEF RGB Output H/V BLK {0:on(normal mode) 1:off } -31-

32 Service Adjustments MENU22 0 Y TH Signal s delicacy of Blue level extend(0~3)default : 0 1 Y GAIN Blue level stretch gain adjust(0~3)default : 0 2 R WIDTH Blue level stretch gain adjust(0~3)default : 0 3 R OFFSET Blue level stretch gain adjust(0~3)default : 0 4 B WIDTH Blue level stretch gain adjust(0~3)default : 0 5 B OFFSET Blue level stretch gain adjust(0~3)default : 0 6 VM/AUDIO SW VM Output/AUDIO outside output switch,0:audio outside output,1:vm output 7 VM DELAY ADJ VM Delay time(0~3) 8 VM GAIN VM Gain option(0~7),0:default Form2:Factory setting Item SHIP1 SHIP2 Channel 1 1 Volume 0 0 Picture mode PERSONAL PERSONAL Sound mode MUSIC MUSIC Tint 0 0 Balance 0 0 Color system AUTO AUTO Sound system I BG Language ENGLISH ENGLISH -32-

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45 A B C D 5V B7 AV1 BM2 B7 5V BM1 C101 C102 16V C103 BL(SDA) R712 C708 16V4.7 10K 50V4.7 XS504 RT501 PTDCA1BF7R0Q100 XS803 C817 50V1 C R Y VD D C105 16V4.7 C106 50V1 C V 1000P V1 IN 1 5 0Y Y COM C V 1000P AHA-HXC-38A1 TJC2-2A C HM0.22 XS502 NISPT-2 R C815 50V Z X COM C n/250V IF BH(SCL) BT 0 0 R1 IN L1 IN AV2 V2 IN BU(AS) R R K 5V B7 A101 Z COM 250HM0.22 0Z TC4053BP/BF 1 3 BT2 1X C816 50V10 N X AV-R IN R841 10K C814 10/50V V841 2SC1815 C R R K 1 1 IN H A 1 0 AGC C104 16V 2.2 ET-5H5E-AF101AH L503 R717 1K C813 10/50V VEE B R108 5K6 C VD501 VD504 RM11C R502 10W-3R9 L501 LCL-07G/18mH R501 1/2W-2M2 C506 C509 1KV4700P FU501 T3.15A H250V AC90~260V 50/60Hz VSS C R104 68K JQX-141FF-012-HSP-HS R503 AV1/AV2 R842 27K AV-L IN R109 1K R716 5K6 C711 FK0.47 XS804-3 C811 50V1 R B7 5V R R103 18K 100K/1W 150K/1W L502 N501 LCL-07G/18mH 1 D C502 FSCQ1265RT R504 2 GND AV/TV 3 VCC 4 FB R C809 50V10 L121 15uH V102 2SC R111 C710 FK SYNC R R/1/2W R715 5K6 C517 50V10 R2 IN L2 IN AV-OUT L OUT R R K R119 1K VDZ501 18V/1W R C C810 50V10 C709 FK0.47 R714 5K6 R R K B6 12V C V220 R507 1K/1/2W LIVE AREA B7 5V TV RIN AV-R IN C801 16V220 C V 22n VD505 FR105 L504 Z2073 R508 1K5/1/2W C V 2n2 16 1Y VD D TV RIN V701 2SC1815 C TV LIN VD506 FR105 C516 50V10 VD508 1N R711 27K 0Y Y COM R OUT VD507 FR105 VDZ AV-L IN 1 Z X COM C618 10/50V N705 UPC574 R505 3W 56K 4.7V C519 47n/63V C n/63V Z COM R718 15K/2W C514 2KV 1000P R506 10R/1/2W B7 5V 0 Z TC4053BP/BF C617 10/50V R710 33K C R OUT 13 L OUT L OUT 1X N X TV LIN R530 8M2/1/2W B1 130V T N502 HS817 C P/AC400 C845 10/50V C844 10/50V 11 IN H A R R C VEE B R804 15K VD541 EU2A N503 KA431 RF R/1W C /160V 10 C P/2KV 16 VSS C 15 AV/TV BCK-160-L001A7A C /35V 9 C P/2KV VD531 RU4AM C P/2KV R541 4K7/1/4W V801 2SC1815 R803 1K L OUT VD581 RU4AM RF R/1W C /25V 1K5/1/2W R542 4K7/1/4W R543 47K/1/4W R802 15K V802 2SC1815 R801 1K N C /16V R545 2R2/2W R546 10K R531 47K/2W VD543 VDZ541 R544 3V3 1N4148 VD542 1N4148 C n R532 XS804 C843 10/50V Z101 HJ1967 R547 1K 68K/1/2W V541 BD034 RP551 B-20K R533 1K5/1/4W 64 PIF I N1 SIF O UT CPUB5 5V C842 10/50V 5V B7 C126 18P C545 10n B1 130V B4 SOUND 22V R OUT R VD544 1N4148 PIF I N2 PIF A GC R808 82R R C125 39P L121 15uH SIF I N V540 2SC1815 V OUT C C120 22n C117 50V IF GND R120 10K N R573 27R/2W 61 3 RF AGC OUT FM FIL R R113 47K R123 3K3 C /16V C R540 1K 60 VIDEO OUT SEL A UDI O OU T B6 12V V202 2SC1815 R207 1k R114 47K 59 C210 22n R AFT FIL AUDIO OUT C B6 12V 0. 47/50V C206 C R806 82R 58 APC FIL SIF A PC FIL C203 16V2.2 B7 5V C R121 10K C N R572 56R/3W XS801 R851 82R 57 B LK D ET. FIL IF VCC VD402 1N R K C115 16V100 C204 16V1 C B7 SIGNAL 5V VD401 1N4148 R K C211 50V/1 C /16V 1K R404 16V0.47 C208 R206 24K R205 24K C G201 S4.43 C403 C245 C V220 USOC CHASSIS COLOR TV Cb C /16V Cr R805 82R C INT VIDEO IN /S-C IN EXT. AUDIO IN /VM OUT C R850 82R C n VIDEO /V VCC ABL C656 10/16V R856 82R Y EXT VIDEO IN /Y IN RGB VCC C666 10/16V C852 50V1 R852 82R VD246 8V2 C APC FIL R OUT B6 12V SEL VIDEO OUT G O UT VD245 8V2 R664 15K V661 2SC1815 R665 1K C669 10/16V Cb IN B OUT VD244 8V2 R602 10K MAIN BOARD R654 15K XS803 S-VIDEO R827 82R B6 12V M CRYSTAL EW Cr IN N101 LA76933 V651 2SC1815 R655 1K C659 10/16V Y C853 50V1 R855 82R V RAM P FIL R /1/4W C V601 2SA1015 VD602 1N4148 C R853 82R YUV-Y IN V O UT VD601 1N4148 C602 10/16V R854 82R NC VCO IREF R273 4K75 1% C /16V YC- Y IN H/ BUS V CC C C406 33n N601 LA42352 C /16V R652 10K R /4W L-IN R-IN R603 10K YC- C IN H A FC FIL C U R402 3K3 B6 12V FILTER C651 10/16V R604 10K C658 12n R651 3K9 V603 2SC1815 R412 10K R413 10K IN 1 R C SW707 POWER C721 33n R K VD411 R722 HZ7C3 1M FBP IN H O UT PRE GN D R662 10K AV/TV R CCD VCC VI DEO /V/ BUS G ND R735 10K C407 50V 1U C668 12n R661 3K9 B4 22V IN 2 C661 10/16V STB V602 2SC1815 C604 10n R R C722 50V2U2 C278 16V CPU GND M UTE VO L2 R601 10K SW706 AV/TV R K PLL AV 1 /AV 2 R734 4K7 VCC SW705 MENU R708 10K R K RESET AV /TV R736 4K7 OU T2 B5 5V C /25V C NF2 C /35V C667 47/16V R663 2R2 1/4W XS601 TJC3-2Y B901 5W 8HM R K C729 50V/ PWR G ND SW704 VOL- XS701 SCN (U ) DEGA USS IR 1 1 R K B5 5V (SDA) VH VO L-L R776 4K7 NF1 C665 47/16V R OUT 1 2 OU T1 SW703 VOL R772 3K3 R K VL (SCL) VO L-R R K C /25V XS602 TJC3-2Y B902 5W 8HM SW702 CH KEY R VO L1 C /16V C R653 2R2 1/4W L OUT R771 3K3 R VO L-L R K KE Y IN TU R701 27K C K7 R R775 4K7 VO L-R C /16V SW701 CH B6 12V B5 5V C704 18P R K VD D POWE R 4K7 R749 R VC C IR XT2 SDA R K C705 18P G K C /16V SDA C723 47/16V E/W V304 2SC1815 GN D R C SCL SCL N AT24C08 XT1 SCL A701 HS0038A C720 10n R745 R R330 1K SDA R R318 1K R VD701 TRL-R R C B6 12V R326 12K V305 2SA1015 R324 3K9 V303 2SA1015 C /16V B2 26V B6 12V B6 12V B R G R XS403 SCN R /2W N451 LA78041 C454 50V1 B2 26V R454 3K R /2W V431 2SC2383-O R VD301 1N4148 XP902 SCN-5Y 5 V- OUT VD441 EU2A V302 2SA1015 NON INPUT R327 10K L451 18uH VCC1 C434 47/35V R322 62K R CRT BOARD L901 10uH T431 JDT1904 B2 26V B3 180V OU TPUT VD451 EM01Z R451 5K6 C R453 12K L433 TLN501K C440 43n/400V L /2W C /35V R943 1/2W 220K R319 2K7 R325 3K3 V301 3DD3853 GN D V432 2SC5299 PUM P O UT C /35V C455 10P/500V R433 1/2W 1K C /35V C n/400V VD446 EU2A C V 3900P R320 1K5 B R R C P G R R R C P R R C P R920 1K R921 2K7 C905 10/16V V905 2SC2688 C437 33n/630V C /100V VCC2 C V1 R446 10K/1W 8K2/2000V C436 VD561 R550 EU2A 1R/1/2WF VD441 EU2A C439 22/220V R V903 2SC2688 R V901 2SC2688 R R R492 1R/1/2WF C V 1000P L VD909 1N4148 V906 2SC VD908 1N4148 V904 2SC VD904 1N4148 R R VD907 1N4148 V902 2SC R Title Size A2 VD905 1N4148 IN PU T 12K R455 VD452 1Z75 R /1/2W Number C459 R452 1R 0.1/100V R456 39K R459 1WJ 0R82 L441 TLN2083 C4358K2/2000V VD435 RU4DS R441 1K/1W RU4C VD436 R313 3R3/1W R915 15K/2W R917 15K/2W R925 15K/2W R R457 12K C V 33n C /50V C457 R458 25V2200 1K R471 7W3R9 V907 2SC2120 R924 4K7 B1 130V R918 2K7/1/2W R916 2K7/1/2W R926 2K7/1/2W C906 10/16V C /16V R VD909 1N4148 V908 2SA T471 BSC23-N0120 R /1/2W B2 12V C470 10/160V C u/16V XS402 TJC2-5A 4 R491 2R2/1W R232 10K C231 50V 1U Date: Sheet of File: F:\SW933.SCHDOC Drawn By: C /16V XP402 TJC2-5Y B3 180V HV FOCUS SCREEN R233 1/2W 1K5 XS901 GZS G C909 2KV1000 R XP SCN-4Y Revision FO K6D XS401 SCN-4Y A B C D D? 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