background image

40

6

5

4

3

2

1

A

B

C

D

E

F

G

H

20F650

PWB-A: MAIN Unit (Wiring Side)

Содержание 21FL94

Страница 1: ...IC DIAGRAM 34 SCHEMATIC DIAGRAMS 35 PRINTED WIRING BOARD ASSEMBLIES 39 REPLACEMENT PARTS LIST 43 PACKING OF THE SET 49 CONTENTS SPEAKER SIZE 12 x 5 cm 2pcs VOICE COIL IMPEDANCE 16 ohm at 400 Hz ANTENNA INPUT IMPEDANCE VHF UHF 75 ohm Unbalanced TUNING RANGES VHF Channels 2 thru 13 UHF Channels 14 thru 69 CATV Channels 1 thru 125 EIA Channel Plan U S A POWER INPUT AC 120 V 60 Hz POWER RATING 88W PIC...

Страница 2: ... meter to be certain that the high voltage does not exceed the specified value and that it is regulating correctly 5 Do not use a picture tube other than that specified or make unrecommended circuit modifications to the high voltage circuitry 6 When trouble shooting and taking test measurements on a receiver with excessive high voltage avoid being unnecessarily close to the receiver Do not operate...

Страница 3: ... metallic control knobs insulating materials cabinet backs adjustment and compartment covers or shields isolation resistor capacity networks mechanical insulators etc 3 To be sure that no shock hazard exists check for leakage current in the following manner Plug the AC cord directly into a 120 volt AC outlet Do not use an isolation transformer for this test Using two clip leads connect a 1 5k ohm ...

Страница 4: ...e celui spécifié et ne pas effectuer de modifications déconseillées du circuit à haute tension 6 Lors de la recherche des pannes et des mesures d essai sur un récepteur qui présente une haute tension excessive éviter de s approcher inutilement du récepteur Ne pas faire fonctionner le récepteur plus longtemps que nécessaire pour localiser la cause de la tension excessive AVERTISSEMENT 1 N entrepren...

Страница 5: ...e remplacement étalonnées pour haute tension puissance etc Les pièces de remplacement qui présentent ces caractéristiques sont identifiées dans ce manuel les pièces électriques qui présentent ces particularités sont PRECAUTIONS A PRENDRE LORS DE LA REPARATION Suite 1 Inspecter tous les faisceaux de câbles pour s assurer que les fils ne soient pas pincés ou qu un outil ne soit pas placé entre le ch...

Страница 6: ...6 20F650 LOCATION OF USER S CONTROL ...

Страница 7: ...creen 7 If the operation of the horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer HIGH VOLTAGE CHECK High voltage is not adjustable but must be checked to verify that the receiver is operating within safe and efficient design limitations as specified checks should be as follows 1 Connect an accurate high voltage meter between grou...

Страница 8: ...key input MENU SERVICE MODE 6 AFT processing is disabled during service mode PLL setting data is set to fo data 7 All user data are set to default during service mode FAO and SPEAKER user settings are off and on respectively in service mode Energy Save is off 8 Sleep timer View timer On timer and OFF timer are inactivated in Service mode 9 Sound is muting in service mode except at Adjustment Items...

Страница 9: ...32 V11 R CUTOFF 1 Chip R CUTOFF 0 255 127 V12 G CUTOFF 1 Chip G CUTOFF 0 255 127 V13 B CUTOFF 1 Chip B CUTOFF 0 255 127 V14 R DRIVE 1 Chip R DRIVE 0 127 64 V15 B DRIVE 1 Chip B DRIVE 0 127 64 V16 SUB COLOR YUV 1 Chip COLOR 0 127 64 V17 SUB TINT YUV 1 Chip BASEBAND TINT 0 127 64 V18 CC POS MICON CC POS 0 255 32 V19 SCREEN CUT OFF 1 Chip CUT OFF 0 2 0 V20 SUB VOL 1 Chip A ATT 0 127 127 V21 H VCO 1 C...

Страница 10: ...input is set as AD input 4 By decreasing RF AGC 1chip data from current RF AGC adjustment value to 0 AFT input voltage becomes the maximum setting value 5 Increase RF AGC 1chip data when AFT input voltage is at max 0 3V point adjustment is completed 6 When adjustment completed OSD display and RF AGC self adjustment status data of EEPROM are updated 7 Intelligent monitor output and IM input mode ar...

Страница 11: ...DRI R2 OFFSET R DRI OFFSET 32 32 0 F24 R DRI R OFFSET R DRI OFFSET 32 32 0 F25 R DRI B OFFSET R DRI OFFSET 32 32 0 F26 B DRI R2 OFFSET B DRI OFFSET 32 32 0 F27 B DRI R OFFSET B DRI OFFSET 32 32 0 F28 B DRI B OFFSET B DRI OFFSET 32 32 0 F29 V FREE 1 Chips V FREE 0 1 0 F30 GAMMA 1 Chips GAMMA 0 3 0 F31 TRAP TV 1 Chips TRAP FINE 0 3 2 F32 TRAP AV 1 Chips TRAP FINE 0 3 2 F33 H FREE 1 Chips H FREE 0 1 ...

Страница 12: ...ADJ TINT YUV 1 Chips BASEBAND TINT 32 32 0 F63 WAIT MD TIMER 1 Chips SLOW MODE 0 1 1 F64 R CUT YUV 1 Chips R CUT OFFSET 63 63 0 F65 G CUT YUV 1 Chips G CUT OFFSET 63 63 0 F66 B CUT YUV 1 Chips B CUT OFFSET 63 63 0 F67 R DRI YUV 1 Chips R DRI OFFSET 63 63 0 F68 B DRI YUV 1 Chips B DRI OFFSET 63 63 0 F69 CONTRAST OFFSET 1 Chips CONTRAST OFFSET 63 63 0 F70 BRIGHTNESS OFFSET 1 Chips BRIGHT OFFSET 63 6...

Страница 13: ... AV2 AV1 system AV2 system 1 015 MTS Without MTS With MTS 1 016 TONE CTRL Without S ADJ With S ADJ 1 017 AUTO OFF Without AUTO OFF With AUTO OFF 1 018 INIT LANG ENGLISH SPANISH 0 019 SETUP FLAG NO SET UP AUTO SET UP 1 020 AV FR 0 NO AV 1 REAR 2 FRONT 3 REAR FRONT 3 021 AV3 S IN Without AV3 S IN With AV3 S IN 0 022 COMB Without COMB With COMB 0 023 AUTO INPUT Without AUTO INPUT With AUTO INPUT 1 02...

Страница 14: ... 127 127 V02 SUB TINT TINT 0 127 64 V03 SUB COLOR COLOR 0 127 64 V04 SUB BRIGHT BRIGHT 0 255 128 V05 SUB SHARP VIDEO TONE 0 63 32 V06 V SHIFT V SHIFT 0 7 4 V07 H SHIFT H PHASE 0 31 16 V08 RF AGC RF DELAY 0 127 127 V09 V SIZE V SIZE 0 63 32 V10 PIF VCO VIF VCO 0 63 32 V11 R CUTOFF R CUTOFF 0 255 127 V12 G CUTOFF G CUTOFF 0 255 127 V13 B CUTOFF B CUTOFF 0 255 127 V14 R DRIVE R DRIVE 0 127 64 V15 B D...

Страница 15: ... F23 R DRI R2 R DRI OFFSET 32 32 0 F24 R DRI R R DRI OFFSET 32 32 0 F25 R DRI B R DRI OFFSET 32 32 0 F26 B DRI R2 B DRI OFFSET 32 32 0 F27 B DRI R B DRI OFFSET 32 32 0 F28 B DRI B B DRI OFFSET 32 32 0 F29 V FREE V FREE 0 1 0 F30 GAMMA GAMMA 0 3 0 F31 TRAP TV TRAP FINE 0 3 2 F32 TRAP AV TRAP FINE 0 3 2 F33 H FREE H FREE 0 1 0 F34 1W TV V WINDOW 0 1 0 F35 1W AV V WINDOW 0 1 0 F36 YLPF YSW LPF 0 1 1 ...

Страница 16: ...1 003 V CHIP V CHIP DISABLE ENABLE 1 004 SPEAKER SPEAKER DISABLE ENABLE 1 005 FAO FAO DISABLE ENABLE 1 006 P PREF P REF DISABLE ENABLE 1 007 UNIV UNIV DISABLE ENABLE 1 008 VIEW TIMER VIEW TIMER DISABLE ENABLE 1 009 EZ SETUP EZ SETUP AUTO PRESET 0 010 PON CH POWER ON DISABLE ENABLE 0 011 FAV COL FAV COL COL TEMP 1 012 COMPONENT COMPONENT DISABLE ENABLE 1 013 AV AV DISABLE ENABLE 1 014 AV2 AV1 AV2 1...

Страница 17: ... DEF 0 DISABLE 1 ENABLE 009 0 EZ SETUP 1 AUTO PRESET BUS OPTION FOR THIRD STAGE SERVICE DATA FUNCTION 011 012 013 014 015 016 017 018 019 020 FAV COL COMP AV AV2 MTS TONE AUTO LAN SETUP AV FR 20F650 1 1 1 1 1 1 1 0 1 3 OPTION SET UP REFER AS BELOW STEP RANGE REFER AS BELOW 20F650 OSD CHECKING DATA SETUP FOR FIRST AND SECOND STAGE SERVICE DATA DATA SETUP FOR FIRST AND SECOND STAGE SERVICE DATA BUS ...

Страница 18: ...KE IT TO A B ADJ FROM THE BEST POINT SO THAT B SLIDELY SMALLER THAN A CHECKING SPEC LEFT AND RIGHT SYMMETRICAL SYMBOL REVISED CONTENT A B ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE HISTORY OF REVISION ADJUST THE V09 BUS DATA UNTILL THE OVERSCAN BECOME AS SPECIFIED BELOW CAUTION PLEASE AGING TV MORE THAN 10 MINUTES BEFORE A...

Страница 19: ...SHOULD BE BALANCE IN VERTICAL POSITION NOTE THE DATA FOR V06 LIMIT AT 04 EVEN POSITION GOOD ENOUGH CHECKING CONFIRMATION SYMBOL REVISED CONTENT ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE HISTORY OF REVISION 1 BY SELECTING THE V18 BOX BLK TEXT WILL BE APPEARED 2 ADJUST THE V18 BUS DATA TO HAVE A BALANCE POSITION TO SPEC OF ...

Страница 20: ...PROCEDURE HISTORY OF REVISION ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE HISTORY OF REVISION AT SELF ADJUSTMENT MODE 1 GO INTO SERVICE MODE BY SELECTING THE SERVICE DATA V10 2 PRESS THE R C FOR AUTO PIF VCO KEY OSD APPEAR OK AT SCREEN 3 IF APPEAR NG PLS REPEAT STEP2 AT MANUAL ADJUSTMENT MODE 1 GO INTO SERVICE MODE BY SELEC...

Страница 21: ...MODULATION BEAT VOLTAGE CONFIRMATION MAX 0 1V dc SYMBOL REVISED CONTENT ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE HISTORY OF REVISION 1 IN SERVICE MODE SET V04 V11 V12 V13 TO 127 V14 V15 TO 64 GET IN Y MUTE BY R C AND SET V19 TO 1 PICTURE APPEAR IN CUT OFF CONDITION 2 ADJUST THE SCREEN SO THAT CUT OFF LINE APPEAR IN LOW B...

Страница 22: ...POSITION IF THE VALUE SHIFTED AWAY FROM THE DATA ADJUSTED IN STEP 1 ADJUST AGAIN THE TWO SERVICE DATA WHICH HAVE CHOSEN AT SCREEN ADJUST SO THAT TO OBTAIN THE SIMILAR AXIS AS ABOVE WARNING DO NOT DISTURB THE MINI STEP GUN DATA DURING THIS ADJUSTMENT REPEAT STEP 1 2 TO GET A REGULATED POSITION CHECKING CONFIRMATION X 0 273 Y 0 280 11 600 K 1 MPCD SYMBOL REVISED CONTENT BLACK US14 WHITE ADJUSTMENT I...

Страница 23: ...VEN Y CAN T MATCH THE SPEC VOLTAGER CONFIRMATION BRIGHTNESS Y 150 cd m2 SYMBOL REVISED CONTENT US14 WHITE ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE HISTORY OF REVISION 1 GET IN Y MUTE FUNCTION BY R C 2 ADJUST THE V02 BUS DATA TO GET A WAVEFORM AS BELOW 3 DISABLE THE Y MUTE PLS TAKE NOTE THAT SERVICE MODE DATA F61 NEED TO ...

Страница 24: ...MENT POSITION VOLTAGE CONFIRMATION CHECK THE VOLTAGE OF P603 PIN 3 AS SPECIFIED BELOW OPERATION CONFIRMATION SUPPLY THE DC VOLTAGE TO P603 PIN 3 AND MAKE SURE THE PRO TECTOR IS FUNCTIONED HORIZONTAL OSCILATION STOP AND PICTURE DISAPPEAR RECOVER INFORMATION PULL OUT THE AC CORD CAUTION FROM THE RECOVER CONFIRMATION MENTIONED ABOVE THE AC CODE MUST BE PULLED OUT AT LEAST 4 SECOND BEFORE PLUG GING IN...

Страница 25: ...T ITEM ADJUSTMENT POSITION CONTROL PRE ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE HISTORY OF REVISION HIGH VOLTAGE BELOW 30kV ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE HISTORY OF REVISION 1 SET THE SOUND VOLUME CONTROL MORE THAN 1 2 ADJUST BUS DATA OF M01 UNTIL THE VOLTAGE OF 39 PIN BE COME AS ...

Страница 26: ...Hz SIGNAL 2 MODULATION 30 L CH ONLY NR ON 3kHz RF INPUT IC 3001 39 PIN CHECKING SPEC OVER 25 dB CHECKING SPEC OVER 20 dB SYMBOL REVISED CONTENT ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE HISTORY OF REVISION 1 RECEIVE THE UHF 15 CH 2 PUSH THE DISPLAY KEY R C MAKE SURE THAT THE OSD V CHIP RATING DISPLAY IS EQUAVALENCE TO TRA...

Страница 27: ...E DOWNLOADED RATING AND NAME UPLOADING CONFIRMATION 1 RECEIVE THE D TRI VISION STEP RANGE AFTER ALL ADJUSTMENT FINISHED RATING SYS DOWNLOAD SIGNAL A B PRCC SIG INCLUDED SIGNAL AC 120V RF INPUT CONFIRMATION BY THE CRT SCREEN COMFIRMATION SYMBOL REVISED CONTENT ADJUSTMENT ITEM ADJUSTMENT POSITION CONTROL PRE ADJUST REQUIREMENT CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE HISTORY OF REVISION ...

Страница 28: ...28 6 5 4 3 2 1 A B C D E F G H 20F650 CHASSIS LAYOUT ...

Страница 29: ...29 6 5 4 3 2 1 A B C D E F G H 20F650 CRT BLOCK DIAGRAM ...

Страница 30: ...30 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 20F650 MAIN BLOCK DIAGRAM ...

Страница 31: ...31 10 11 12 13 14 15 16 17 18 19 20F650 ...

Страница 32: ...32 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 20F650 MTS BLOCK DIAGRAM ...

Страница 33: ...33 20F650 WAVEFORMS ...

Страница 34: ...All voltages measured with 1000µ V B W or Color signal WAVEFORM MEASUREMENT CONDITIONS 1 Photographs taken on a standard gated color bar signal the tint setting adjusted for proper color The wave shapes at the red green and blue cathodes of the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart waveforms are measured from point indicated to ...

Страница 35: ...35 6 5 4 3 2 1 A B C D E F G H 20F650 SCHEMATIC DIAGRAM CRT Unit ...

Страница 36: ...36 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 20F650 SCHEMATIC DIAGRAM MAIN Unit ...

Страница 37: ...37 10 11 12 13 14 15 16 17 18 19 20F650 ...

Страница 38: ...38 6 5 4 3 2 1 A B C D E F G H 20F650 SCHEMATIC DIAGRAM MTS Unit ...

Страница 39: ...39 6 5 4 3 2 1 A B C D E F G H 20F650 PWB B CRT Unit Wiring Side PRINTED WIRING BOARD ASSEMBLIES ...

Страница 40: ...40 6 5 4 3 2 1 A B C D E F G H 20F650 PWB A MAIN Unit Wiring Side ...

Страница 41: ...R4 3 7 RJ 1 2 C1 0 0 4 I C1 0 0 3 R5 0 4 C5 1 8 R5 2 8 C5 1 9 R5 2 0 RJ 3 2 RJ 3 1 Q6 0 4 R6 6 2 R1 0 4 0 RJ 3 0 Q8 0 1 R8 0 1 RJ 2 9 C1 8 5 5 C1 0 1 3 C1 0 1 1 C1 0 0 9 R8 1 7 R8 0 7 C8 1 4 R1 0 6 4 R1 0 6 3 Q8 0 4 R8 4 2 R1 0 6 5 C8 2 3 R8 1 5 C1 0 0 8 C8 1 5 R8 1 4 R8 1 6 R8 1 2 R1 0 6 2 C8 1 6 R1 0 6 1 C8 2 6 R8 3 2 C8 1 9 C7 5 7 C8 2 1 D1 0 8 6 R 8 4 7 C8 2 8 C8 3 0 R8 4 4 C8 3 1 C8 3 3 C8 3 ...

Страница 42: ...0 5 R3 0 8 2 R3 0 8 4 R3 0 2 8 R3 0 3 5 R3 0 1 9 R3 0 2 7 R3 0 3 0 C3 0 4 2 Q3 0 0 2 Q3 0 0 1 R3 0 1 4 R3 0 2 1 R3 0 2 9 R3 0 1 1 C3 0 4 3 Q3 0 0 4 R3 0 3 4 R3 0 2 6 C3 0 3 6 R3 0 0 7 C3 0 1 3 C3 0 0 8 R3 0 2 5 R3 0 0 8 R3 0 0 5 R3 0 1 2 I C3 0 0 1 R3 0 1 0 C3 0 3 5 C3 0 0 2 R3 0 0 3 R3 0 1 3 RJ 1 0 1 C3 0 3 3 C3 0 2 6 C3 0 2 5 C3 0 2 8 C3 0 3 2 C3 0 3 1 C3 0 2 3 C3 0 2 4 C3 0 2 7 R3 0 0 4 R3 0 0 ...

Страница 43: ...D1SS119 1Y X 1SS119 AA D713 RH EX0606GEZZY X Zener Diode AB D714 VHD1SS119 1Y X 1SS119 AA D716 RH EX0601GEZZY X Zener Diode AB D751 RH DXA006WJZZ X DXA006WJ AB D752 RH DX0247CEZZ X DX0247CE D801 RH EX1393CEZZY X Zener Diode 5 1V AB D802 RH EX0630GEZZY X Zener Diode 9 1V AB D803 VHD1SS119 1Y X 1SS119 AA D806 VHD1SS119 1Y X 1SS119 AA D810 RH EX0263TAZZY X Zener Diode 8 1V AB D811 RH EX0263TAZZY X Ze...

Страница 44: ...Electrolytic AB C601 VCQYTA1HM563J X 0 056 50V Mylar AA C602 VCEA0A1HW475M X 4 7 50V Electrolytic AB C603 VCEA0A1HW105M X 1 50V Electrolytic AB C604 VCEA0A2EW336M X 33 250V Electrolytic AB C606 VCKYPA2HB102K X 1000p 500V Ceramic AB çåC607 VCFPVC3ZA912H X 9100p 1 8kVM Polypro AE C608 VCQYTA2AA103K X 0 01 100V Mylar C610 VCEA0A1EW227M X 220 25V Electrolytic AB C611 VCFPVC2DB334J X 0 33 200V M Polypr...

Страница 45: ...Y X 3 3k 1 16W Metal Oxide AA R431 VRS CY1JF101JY X 100 1 16W Metal Oxide AA R432 VRS CY1JF750JY X 75 1 16W Metal Oxide AA R433 VRS CY1JF750JY X 75 1 16W Metal Oxide AA R434 VRS CY1JF750JY X 75 1 16W Metal Oxide AA R435 VRS CY1JF750JY X 75 1 16W Metal Oxide AA R436 VRD RA2BE101JY X 100 1 8W Carbon AA R437 VRS CY1JF101JY X 100 1 16W Metal Oxide AA R438 VRS CY1JF000JY X 0 1 16W Metal Oxide AA R461 V...

Страница 46: ...16W Metal Oxide AA R1081 VRS CY1JF103JY X 10k 1 16W Metal Oxide AA R1096 VRS CY1JF103JY X 10k 1 16W Metal Oxide AA R1097 VRS CY1JF472JY X 4 7k 1 16W Metal Oxide AA R1098 VRS CY1JF104JY X 100k 1 16W Metal Oxide AA R1801 VRD RA2BE222JY X 2 2k 1 8W Carbon AA R1802 VRS CY1JF124JY X 120k 1 16W Metal Oxide AA R1849 VRS CY1JF222JY X 2 2k 1 16W Metal Oxide AA R1850 VRS CY1JF472JY X 4 7k 1 16W Metal Oxide ...

Страница 47: ...AB C3026 VCKYCY1HF473ZY X 0 047 50V Ceramic AB C3030 VCQYTA1HM682J X 6800p 50V Mylar AB C3031 VCKYCY1HF682ZY X 6800p 50V Ceramic AA C3034 VCEA0A1HW224M X 0 22 50V Electrolytic AB C3037 VCEA0A1HW335M X 3 3 50V Electrolytic AA C3038 VCEA0A1HW335M X 3 3 50V Electrolytic AA C3039 VCEA0A1HW224M X 0 22 50V Electrolytic AB C3042 VCKYCY1HB681KY X 680p 50V Ceramic AA C3043 VCKYCY1HB681KY X 680p 50V Ceramic...

Страница 48: ...WJZZ X Operation Manual X3 TGAN A216WJN1 X Guarantee Card PACKING PARTS NOT REPLACEMENT ITEM S1 SPAKCB876WJZZ Packing Case S2 SPAKPA055WJZZ Wrapping Paper S3 SPAKXA145WJZZ Packing Add S4 SSAKA0101GJZZ Polyethylene Bag CABINET PARTS 1 CCABAA323WEH7 X Front Cabinet Ass y 1 1 Not Available Front Cabinet 1 2 HBDGB3155CESA X Badge SHARP AD 1 3 HDECQA119WJSA X LED R C Cover 1 4 JBTN A070WJKD X Button Po...

Страница 49: ...Ref No Part No Description Code Ref No Part No Description Code 49 20F650 PACKING OF THE SET S4 X1 X2 X3 S3 S1 S2 ...

Страница 50: ... retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher SHARP CORPORATION AV Systems Group Quality Reliability Control Center Yaita Tochigi 329 2193 Japan TQ1862 S Mar 2005 Printed in Japan In Japan gedruckt MY DS Design and Production Information Design SEM Production SEMEX ...

Отзывы: