Sony Trinitron KV-G21MW3 Service Manual Download | Manualshive

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http://cxema.ru

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KV-G21MW3/G21QW3

RM-869

2-1.

REAR CO

VER REMO

V

A

L

2-2.

A BO

ARD REMO

V

A

L

2-3.

SER

VICE POSITION

SECTION 2

DISASSEMBL

Y

Four screws

(BVTP 4

×

16)

1

2

Two screws

(BVTP 4

×

16)

Lever

Lever

A board

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8
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Summary of Contents for Trinitron KV-G21MW3

Page 1: ...http cxema ru MODEL COMMANDER DEST CHASSIS NO MODEL COMMANDER DEST CHASSIS NO KV G21MW3 RM 869 ME SCC U07U A KV G21QW3 RM 869 ME SCC U07T A SERVICE MANUAL BG 2S CHASSIS TRINITRON COLOR TV ...

Page 2: ...ck Ú monitor output jacks phono jacks D video 1 Vp p 75 ohms audio 500 mVrms Picture tube 21 in Tube size cm 54 Measured diagonally Screen size cm 51 Measured diagonally Dimensions w h d mm 516 464 478 Mass kg 22 Design and specifications are subject to change without notice SPECIFICATIONS CAUTION SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE ANODE CAP TO THE METAL CHASSIS CRT SHIELD OR CARB...

Page 3: ...am Landing 13 3 2 Convergence 14 3 3 Focus Adjustment 15 3 4 Remote Commander Adjustment 16 3 5 G2 Screen and White Balance Adjustments 16 4 CIRCUIT ADJUSTMENTS 4 1 Adjustments with Commander 17 4 2 Adjustment Method 18 4 3 A Board Adjustment after IC003 Memory Replacement 23 4 4 Picture Distortion Adjustment 23 5 DIAGRAMS 5 1 Block Diagram 25 5 2 Circuit Boards Location 28 5 3 Schematic Diagrams ...

Page 4: ... the LED s for 60ss each time The flickering frequency responding to each failed device is shown below SELF DIAGNOSIS FUNCTION Board name Ref No Device Flickering Frequency A Board IC003 NONVOLATILE MEMORY ST24C08FB6 1 A Board IC300 Y C JUNGLE TDA8374A 3 All the devices are checked one after another from the left of the table If an error is found the responding LED will start flickering So if more...

Page 5: ...R SELECT PROGR VOLUME TV VIDEO SELECT VHF LOW B G 1 SECTION 1 GENERAL The operating instructions mentioned here are partial abstracts from the Operating Instruction Manual The page numbers of the Operating Instruction Manual remain as in the manual 2 ...

Page 6: ...t jack Do not connect video equipment to the video input jacks at the front and the rear of your TV simultaneously otherwise the picture will not be displayed properly on the screen Connecting audio video equipment using the Ú monitor output jack Rear of TV to antenna socket VCR to antenna output Ú D to video and audio inputs Signal flow Rear of TV to antenna output to video and audio outputs VCR ...

Page 7: ...nel quickly automatically or manually TV SYSTEM SELECT SELECT or or B G I D K M MANUAL PROGRAM SELECT SELECT or 1 2 3 4 6 7 8 9 0 5 PROGR PROGR or or VHF LOW B G 1 SELECT SELECT or 1 2 3 1 1 2 3 4 6 7 8 9 0 5 PROGR PROGR or or or or or Getting Started 6 EN Presetting channels If the picture color is poor and or the sound is noisy for KV G21MW3 only Select the appropriate TV system as follows 1 Pre...

Page 8: ...P TIMER OFF SLEEP TIMER 90M C I Displaying on screen information Press E G The program position local system and TV settings are displayed on the screen E G Setting the Sleep Timer You can set the TV automatically turned off as you program Press C I To cancel the Sleep Timer press C I repeatedly until SLEEP TIMER OFF appears or turn off the TV Changing the on screen display language You can use bu...

Page 9: ...ay be caused by local interference e g cars neon signs and hair dryers Adjust the antenna for minimum interference Double images or ghosts This may be caused by reflections from nearby mountains or buildings A highly directional antenna may improve the picture Good picture Noisy sound Check the TV SYSTEM setting for KV G21MW3 only Additional Information Operations 10 EN Adjusting the picture Each ...

Page 10: ...http cxema ru 10 KV G21MW3 G21QW3 RM 869 2 1 REAR COVER REMOVAL 2 2 A BOARD REMOVAL 2 3 SERVICE POSITION SECTION 2 DISASSEMBLY Four screws BVTP 4 16 1 2 Two screws BVTP 4 16 Lever Lever A board ...

Page 11: ...y 2 4 1 REPLACEMENT OF MULTI BUTTON 2 5 TERMINAL BOARD BRACKET REMOVAL 2 6 DEMAGNETIZATION COIL REMOVAL Two claws A board Terminal board bracket A board Terminal board bracket 1 Demagnetization coil 2 Tension spring Picture tube Cut Cut Multi button Multi button Three screws BVTP 3 12 SCREWING TORQUE 7 1 kg cm 2 4 2 REPLACEMENT OF LIGHT GUIDE Light guide Cut Cut Light guide Two screws BVTP 3 12 SC...

Page 12: ...2 Do not press the rubber too hard so as not to damage the inside of anode cap A metal fitting called the shatter hook terminal is built into the rubber 3 Do not turn the foot of rubber over too hard The shatter hook terminal will stick out or damage the rubber REMOVAL OF ANODE CAP NOTE After removing the anode short circuit the anode of the picture tube and the anode cap to the metal chassis CRT ...

Page 13: ... the power and degauss with the degausser 3 1 BEAM LANDING 1 Input a white signal with the pattern generator Contrast Brightness 2 Set the pattern generator raster signal to green 3 Move the deflection yoke to the rear and adjust with the purity control so that the green is at the center and the blue and the red take up equally sized areas on each side See Figures 3 1 through 3 3 4 Move the deflec...

Page 14: ...Beam Landing Adjustment 1 Moving vertically adjust the V STAT magnet so that the red green and blue dots are on top of each other at the center of the screen 2 Moving horizontally adjust the H STAT VR so that the red green and blue dots are on top of each other at the center of the screen 3 2 CONVERGENCE Preparation Before starting this adjustment adjust the focus horizontal size and vertical size...

Page 15: ...ergence 1 Slightly loosen the deflection yoke screws 2 Remove the deflection yoke spacer 3 Move the deflection yoke as shown in the figure below and optimize the convergence 4 Tighten the deflection yoke screws 5 Install the deflection yoke spacer B G R B G R R G B R G B R G B R G B B G R B G R R G B B G R B G R R G B a d screen corner misconvergence b a c d a d c b a to d Permalloy assembly Fix a...

Page 16: ... G WHITE POINT B Initial DATA 28 20 20 3 5 G2 SCREEN AND WHITE BALANCE ADJUSTMENTS 1 G2 SCREEN ADJUSTMENT RV701 1 Set the PICTURE and BRIGHTNESS to normal 2 Put to VIDEO input mode without signals 3 Connect R G and B of the C board cathode to the oscilloscope 4 Adjust G2 RV701 volume to the value below Item number 09 0A 0B Adjustment Item RDR GDR BDR 177 2 V DC 2 WHITE BALANCE ADJUSTMENTS 1 Set to...

Page 17: ...ecomes the values in memory 8 All user control goes to the standard state 5 Service data initialization Be sure not to use usually 2 Write 50Hz adjustment data to 60Hz or viceversa The screen display is 1 4 Select the adjustment item 3 6 Raise lower the data MUTING Writes Executes the writing RM 869 SERVICE Mode 08 Data HSF 50 Depends on the signals PAL SECAM 50 NTSC 60 Adjustment item 00 Mode Ite...

Page 18: ...te executed with 0 GREEN The WRITE display will change back to SERVICE 2nd line disappear when written 0C VSF 08 00 V3 2C 058S 060S 00 V3 2C 058S 060S Blank 4 2 ADJUSTMENT METHOD Item Number 08 This explanation uses V SHIFT as an example 1 Select 08 V SHIFT with the 1 and 4 buttons 2 Raise lower the data with the 3 and 6 buttons 3 Select the optimum state The standard is 0F for PAL reception 4 Wri...

Page 19: ...icture Minimum Data 12 5 0 16 SBR 7F 00 4B Sub Brightness 10 6 0 17 SHU 0F 00 07 Sub Hue 02 3 0 18 SSH 03 00 0 Sub Sharpness 01 03 TV Video 0F 1 0 19 SC1 3F 00 0 Sub Color Lower 26 29 50 60Hz 11 5 0 1A SC2 3F 00 0 Sub Color Higher 0C 0D 50 60Hz 11 5 0 1B AIP 7F 00 3C Adjustment IF PLL 15 6 0 1C VZM 3F 00 19 Vertical Zoom 16 5 0 1D WST FF 00 15 W G Stereo Threshold MSP3410D 80 1E WBT FF 00 EA W G B...

Page 20: ...L FF 00 10 Power ON Delay 37 OFR 0F 00 00 RGB Output Time STBY OFF 38 OFM 0F 00 00 RGB Output Time AC OFF 39 OSH 3F 00 0A OSD H Position 3A DKS 1 0 1 D K Stereo enable disable 3B MUT 1 0 0 Muting on off at No Sync 3C ABL 1 0 0 Bright ABL Switch 3D SCM 1 0 0 SECAM Trap active inactive 3E FBT 1 0 1 FBT L S C M Strict plain 3F OP0 FF 00 2F Optional Flags 0 see below 40 OP1 FF 00 0F Optional Flags 1 s...

Page 21: ...No NICAM 1 NICAM search is disabled in any TV system 0 NICAM search operates Other optional bits are effevctive if set to 1 No Bal for AV stereo model 1 no balance in analog select items 0 balance included Other optional bits are effective if set to 1 Hotel TV mode should be switched with remote commander from STBY condition as below Hotel TV on push display 8 vol and power sequentially Hotel TV o...

Page 22: ...o increment decrement items and data Items push the commander button 1 4 Data push the commander button 3 6 not write into NVM Other operations Write data into NVM push the commander button mute and 0 sequentially Read data from NVM push the commander button 7 and 0 sequentially Copy 50Hz data into 60Hz area push the commander button display and 0 sequentially Modification Note V3 2 4 S Mode optio...

Page 23: ...ows the normal picture In case some items are not well adjusted give them fine adjustment Write the data per each item number MUTING 4 Select item numbers 3F OP0 40 OP1 and 41 OP2 and respectively set the bit per model with command buttons 3 and 6 5 Press commander buttons 8 and Test Normal to return to the data that was set on shipment from the factory Cancel Service Mode 00 HSF H SHIFT 01 HSZ H ...

Page 24: ...C003 MEMORY 1 2 IC004 IR DET 5V S901 5 4 IC002 5V REG 1 9V 5V X101 Q902 LED DRIVE DRIVE LED Q903 5V TIMER D901 NICAM ST BY Q403 404 FILTER SWF401 Q402 IF BUFFER IF TU101 TUNER L OUT L IN 5 11 IC203 AUDIO OUT Q1207 1208 BUFFER L MUTE Q1265 L SP MUTE Q210 VIDEO L MONO J1201 CN251 SP J251 EARPHONE MONITOR OUT A TUNER IF Y C JUNGLE SECAM DECODER H V OUT SYSTEM CONTROLLER MEMORY AUDIO VIDEO IN OUT POWE...

Page 25: ... 2Vp p H 2 2Vp p H PAL SECAM NTSC 0 9Vp p H 1 3Vp p H 1 0Vp p H 1 5Vp p V 1030Vp p 149Vp p PAL 0 7Vp p H PAL NTSC SECAM 0 5Vp p H 1 3Vp p H 0 7Vp p H SECAM NTSC PAL SECAM 0 6Vp p H 1 0Vp p H SECAM PAL 1 4Vp p H 1 3Vp p H SECAM PAL NTSC 1 5Vp p H 1 2Vp p H NTSC SECAM PAL 1 3Vp p H 0 7Vp p H 0 7Vp p H PAL SECAM NTSC 1 0Vp p H 0 6Vp p H 0 5Vp p H 1 2 3 3 3 4 4 4 5 5 6 6 7 7 8 8 9 9 10 11 10 11 10 11 ...

Page 26: ... CHIP 0 047 200V PT 0 001 B 680p 2kV B 470p B CHIP 470p B CHIP 0 01 200V PT 0 001 B CHIP 220p 500V B 1 330p 2kV B 0 0082 200V PT 2200p 500V E 0 27 200V PP 0 01 200V PT 0 001 500V B 0 001 500V B 470p 500V B 33 250V 0 033 100V PT 470p CHIP 1SS119 1SS119 1SS119 GP08D 1SS119 GP08D V DRIVE 1SS119 1SS119 ERC06 15S GP08D H CENT 1 GP08D H CENT 2 1SS119 PROTECT 1 1UH 1 1UH 1 1UH 1 1UH 1 1UH 1 1UH JW 5 L78L...

Page 27: ...Q709 Q705 Q708 Q704 Q707 Q710 Q711 Q712 R705 R723 R721 R719 R728 R701 RV701 R702 R715 C714 R733 C713 R732 C712 R731 470p B 470p B 470p B 1SS119 1SS119 100 100 100 1SS119 1SS119 100 0 022 400V PP 0 0047 2kV E 100k 1 2W 1k FPRD 1k FPRD EL0607 4P WHT MINI JW 5 JW 5 JW 5 TAB CONTACT 1SS119 1SS119 1SS119 1SS119 1SS119 1SS119 RD9 1ESB SOCKET 0 001 100 1 2W 1k FPRD 8 2k 1 2W 8 2k 1 2W 6P WHT S MICRO JW 5...

Page 28: ...TER SIDE 2SC2785 HFE 2SC2410SN E C B 2SA1091 0 B C E 2SD2012 E LETTER SIDE C B 2SC2611 1 TOP VIEW Dual In line Package Pin 6 98 CXP85220A 058S 64PIN CXP85220A 060S 64PIN ST24C04FB6 8 PIN TDA4665T V5 118 TDA8375A Single In line Package Pin 6 98 1 TOP VIEW TDA8375T N3 20PIN µPC4558G2 8PIN L78LR05D MA 1 2 3 4 5 6 7 LA7830 SE 115 µPC574J ANODE CATHODE 1 n TA8248K MA77 ANODE CATHODE NJM2234L Zig zag In...

Page 29: ...ATE GUIDE LIGHT 4 1 505 740 11 SPEAKER 5X9CM 5 3 947 764 11 CUSHION SPEAKER 6 4 072 569 21 SHEET BLOTTING 7 4 365 808 12 SCREW 5 TAPPING 8 3 703 961 01 SPACER DY 9 4 369 318 61 SPRING TENSION 10 8 738 774 05 PICUTRE TUBE 21PXD SDS SD 169 1BR 11 8 451 280 33 DEFLECTION YOKE Y21PXA2 12 1 452 277 01 MAGNET BMC 13 A 1331 688 A C BOARD COMPLETE 14 1 409 942 11 COIL DEMAGNETIZATION 15 4 049 740 21 COVER...

Page 30: ...0 1 126 960 11 ELECT 1UF 20 00 50V C051 1 163 117 00 CERAMIC CHIP 100PF 5 00 50V C052 1 164 004 11 CERAMIC CHIP 0 1UF 10 00 25V C053 1 163 009 11 CERAMIC CHIP 0 001UF 10 00 50V C054 1 163 009 11 CERAMIC CHIP 0 001UF 10 00 50V C055 1 126 925 11 ELECT 470UF 20 00 10V C056 1 163 009 11 CERAMIC CHIP 0 001UF 10 00 50V C057 1 163 243 11 CERAMIC CHIP 47PF 5 00 50V C058 1 163 117 00 CERAMIC CHIP 100PF 5 0...

Page 31: ...1 1 163 117 00 CERAMIC CHIP 100PF 5 00 50V C342 1 164 004 11 CERAMIC CHIP 0 1UF 10 00 25V C344 1 126 964 11 ELECT 10UF 20 00 50V C349 1 126 964 11 ELECT 10UF 20 00 50V C350 1 104 664 11 ELECT 47UF 20 00 16V C351 1 164 004 11 CERAMIC CHIP 0 1UF 10 00 25V C352 1 164 489 11 CERAMIC CHIP 0 22UF 10 00 16V C358 1 164 004 11 CERAMIC CHIP 0 1UF 10 00 25V C359 1 104 665 11 ELECT 100UF 20 00 16V C361 1 163 ...

Page 32: ...63 133 00 CERAMIC CHIP 470PF 5 00 50V C901 1 163 133 00 CERAMIC CHIP 470PF 5 00 50V C1201 1 104 665 11 ELECT 100UF 20 00 16V C1202 1 164 004 11 CERAMIC CHIP 0 1UF 10 00 25V C1204 1 104 665 11 ELECT 100UF 20 00 16V C1205 1 164 004 11 CERAMIC CHIP 0 1UF 10 00 25V C1210 1 104 665 11 ELECT 100UF 20 00 16V C1213 1 126 960 11 ELECT 1UF 20 00 50V C1214 1 104 665 11 ELECT 100UF 20 00 16V C1217 1 104 665 1...

Page 33: ... IC CXP85220A 058S KV G21QW3 IC003 8 759 380 51 IC ST24C04FB6 IC004 8 759 180 30 HYB IC SBX3081 51 30 IC100 8 759 157 40 DIODE HZT33 02TE IC203 8 759 339 60 IC TA8248K IC300 8 759 365 26 IC TDA8375A IC351 8 759 565 20 IC TDA4665T V5 118 IC354 8 759 430 79 IC TDA8395T IC401 8 759 800 65 IC LA7910 KV G21MW3 IC521 8 759 650 98 IC PQ09RD08 IC551 8 759 801 98 IC LA7830 IC601 8 749 014 00 IC STR S6707N ...

Page 34: ...057 00 RES CHIP 2 2K 5 1 10W R009 1 216 049 91 RES CHIP 1K 5 1 10W KV G21MW3 R010 1 216 049 91 RES CHIP 1K 5 1 10W R012 1 216 017 91 RES CHIP 47 5 1 10W R013 1 216 049 91 RES CHIP 1K 5 1 10W R014 1 216 049 91 RES CHIP 1K 5 1 10W KV G21MW3 R015 1 216 043 91 RES CHIP 560 5 1 10W R016 1 216 049 91 RES CHIP 1K 5 1 10W R017 1 216 057 00 RES CHIP 2 2K 5 1 10W R018 1 216 033 00 RES CHIP 220 5 1 10W R019 ...

Page 35: ... 249 421 11 CARBON 2 2K 5 1 4W R562 1 249 419 11 CARBON 1 5K 5 1 4W R563 1 260 126 11 CARBON 180K 5 1 2W R245 1 216 069 00 RES CHIP 6 8K 5 1 10W R246 1 216 069 00 RES CHIP 6 8K 5 1 10W R247 1 216 073 00 RES CHIP 10K 5 1 10W R248 1 216 073 00 RES CHIP 10K 5 1 10W R249 1 216 077 91 RES CHIP 15K 5 1 10W R250 1 216 077 91 RES CHIP 15K 5 1 10W R251 1 216 295 91 SHORT 0 R252 1 249 411 11 CARBON 330 5 1 ...

Page 36: ... 202 818 00 SOLID 1K 20 1 2W R856 1 249 429 11 CARBON 10K 5 1 4W R857 1 249 438 11 CARBON 56K 5 1 4W R858 1 216 370 11 METAL OXIDE 1 2 5 2W R860 1 247 887 00 CARBON 220K 5 1 4W R881 1 216 043 91 RES CHIP 560 5 1 10W R882 1 216 059 00 RES CHIP 2 7K 5 1 10W R883 1 216 121 91 RES CHIP 1M 5 1 10W R895 1 216 349 00 METAL OXIDE 1 5 1W R898 1 249 421 11 CARBON 2 2K 5 1 4W R902 1 216 065 91 RES CHIP 4 7K ...

Page 37: ...17 1 101 880 00 CERAMIC 47PF 5 00 50V C736 1 102 114 00 CERAMIC 470PF 10 00 50V C737 1 102 114 00 CERAMIC 470PF 10 00 50V C746 1 102 114 00 CERAMIC 470PF 10 00 50V CONNECTOR CN701 1 508 766 00 PIN CONNECTOR 5MM PITCH 4P CN703 1 564 509 11 PLUG CONNECTOR 6P CN704 1 695 915 11 TAB CONTACT DIODE D701 8 719 911 19 DIODE 1SS119 25TD D702 8 719 911 19 DIODE 1SS119 25TD D703 8 719 911 19 DIODE 1SS119 25T...

Page 38: ... 1 249 418 11 CARBON 1 2K 5 1 4W R757 1 249 418 11 CARBON 1 2K 5 1 4W MISCELLANEOUS 1 409 942 11 COIL DEMAGNETIZATION 1 452 032 00 MAGNET DISC 1 452 277 00 MAGNET BMC 1 505 740 11 SPEAKER 5X9CM 1 473 159 21 CAP ASSY HIGH VOLTAGE 1 574 062 11 CORD POWER WITH CONNECTOR 2 5A 250V 1 900 212 58 LEAD ASSY FOCUS C 1 501 372 81 ANTENNA TELESCOPIC 8 451 280 33 DEFLECTIONYOKE Y21PXA2 8 738 774 05 PICTURE TU...

Page 39: ...y shading and mark are critical for safety Replace only with part number specified REF NO PART NO DESCRIPTION REMARK KV G21MW3 G21QW3 RM 869 Sony Corporation Sony Technology Malaysia Sdn Bhd TV Business of General Area English 2000DS70176 1 Printed in Malaysia 2000 4 9 872 206 01 ...

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