20F630 CU20F630 1st Edition SERVICE MANUAL S52J320U-FS1/ COLOR TELEVISION Chassis No. GA-2 MODELS 20F630 CU20F630 In the interests of user-safety (Required by safety regulations in some countries ) the set should be restored to its original condition and only parts identical to those specified should be used. CONTENTS Page » ELECTRICAL SPECIFICATIONS ......................................................................................................... 1 » IMPORTANT SERVICE SAFETY PRECAUTION .....
0F630 CU20F630 IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING X-RADIATION AND HIGH VOLTAGE LIMITS 1. For continued safety, no modification of any circuit should be attempted. 2. Disconnect AC power before servicing. 3. Semiconductor heat sinks are potential shock hazards when the chassis is operating. 4.
20F630 CU20F630 IMPORTANT SERVICE SAFETY PRECAUTION (Continued) • Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. AII checks must be repeated with the AC line cord plug connection reversed. (If necessary, a nonpolarized adapter plug must be used only for the purpose of completing these check.) Any current measured must not exceed 0.
20F630 CU20F630 PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ë Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. AVERTISSEMENT LIMITES DES RADIATIONS X ET DE LA HAUTE TENSION 1. N'entreprendre aucune modification de tout circuit. C'est dangereux. 2. Débrancher le récepteur avant toute réparation. 3.
20F630 CU20F630 PRECAUTIONS A PRENDRE LORS DE LA REPARATION (Suite) » Toucher avec la sonde d'essai les pièces métalliques exposées qui présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance. Toutes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation.
20F630 CU20F630 LOCATION OF USER'S CONTROL Front Panel VIDEO IN 2 L-AUDIO-R POWER Press → On. Press again → Off. SENSOR AREA FOR REMOTE CONTROL (INSIDE DOOR) MENU Press → Accesses MAIN MENU. Press again → Exits MAIN MENU. VOLUME UP/DOWN (+) Increases sound. ( ) Decreases sound. CHANNEL UP/DOWN (') Selects next higher channel. (") Selects next lower channel. Basic Remote Control Functions POWER Press → On. Press again → Off. REMOTE KEYPAD Accesses any channel from keypad.
20F630 CU20F630 INSTALLATION AND SERVICE INSTRUCTIONS Note: (1) When performing any adjustments to resistor controls and transformers use non-metallic screwdrivers or TV alignment tools. (2) Before performing adjustments, the TV set must be on at least 15 minutes. CIRCUIT PROTECTION HIGH VOLTAGE CHECK The receiver is protected by a 4.0A fuse (F701), mounted on PWB-A, wired into one side of the AC line input.
20F630 CU20F630 SERVICE MODE Service Mode Overview 1. 2. 3. 4. Service mode is entered by SERVICE key input or CH-UP +VOL-DOWN input during reset. Service mode is cleared by entering SERVICE key or CH-UP +VOL-DOWN key command during service mode. If key input port (SERVICE) input is LOW, then it is in service mode. During key input port (SERVICE) input is LOW, clearing service mode by key input SERVICE or CH-UP + VOLDOWN is disabled. 5.
20F630 CU20F630 Adjustment Mode Items No.
20F630 CU20F630 Ë SELF ADJUSTMENT H-VCO 1. 2. 3. 4. 5. 6. 7. When there is H-VCO self-adjustment key input for adjustment item H-VCO, self-adjustment is performed. H-FREE(1chip) is set to 1. H-OUT is set by intelligent monitor output. IM input is set as TIM input. H-VCO(1chip) data is changed so that the number of input pulse is 125 inside 8ms interval. When adjustment completed, OSD display and H-VCO self-adjustment status data of EEPROM are updated.
20F630 CU20F630 Setting Mode Items No.
20F630 CU20F630 Option Mode Items No O01 O02 O03 O04 O05 O06 O07 O08 O09 O10 O11 O12 O13 O14 O15 O16 O17 O18 O19 ITEM DEM0 DOWNLOAD V-CHIP SPEAKER FAO P.PREF UNIV+ VIEW TIMER EZ-SETUP PON-CH FAV-COL COMPONENT AV AV2 MTS TONE-CTRL AUTO-OFF INIT-LANG SETUP-FLAG O20 FR.AV (Front, Rear AV) 0 1 Without DEMO With DEMO Without V-CHIP OP With V-CHIP OP Without V-CHIP With V-CHIP Without SPEAKER With SPEAKER Without FAO With FAO Without P.PREF With P.
20F630 CU20F630 ADJUSTMENT METHOD Caution: to get into the service mode, one of the ways is press direct key for service items.
20F630 CU20F630 Second Stage Data F01 F02 F03 F04 F05 F06 F07 F08 F09 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30 F31 F32 F33 F34 F35 F36 F37 F38 F39 F40 F41 F42 F43 F44 F45 F46 F47 F48 F49 F50 F51 F52 F53 F54 Service Mode VIDEO TONE -GAIN (TV) VIDEO TONE -GAIN (AV VIDEO TONE -GAIN(YUV) ABCL BS ABCL-G SHP-AV SHP-YUV SHP-CLIP E-SAVE FAO-VOL PIF-G Y-DELAY(TV) Y-DELAY(AV) Y-DELAY(YUV) TINT-AV COL-AV R-DRI(R2) R-DRI( R) R-DRI(B) B-DRI(R2) B-DRI( R) B-DRI(B) V-FREE GAMMA
20F630 CU20F630 Third Stage Data 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 Service Mode DEMO DOWNLOAD V-CHIP SPEAKER FAO P.PREF UNIV+ VIEW TIMER EZ-SETUP PON-CH FAV-COL COMPONENT AV AV2 MTS TONE-CTRL AUTO-OFF INIT-LANG SETUP-FLAG AV-FR DATA="0" DATA="1" DEMO OFF ON V-CHIP OP OFF ON V-CHIP OFF ON SPEAKER OFF ON FAO OFF ON P.
ADJUSTMENT PROCEDURE 16 001 002 1 0 1 0 1 1 1 1 FAO 1 1 DEF 20F630 CU20F630 FUNCTION 1 1 1 1 AV 1 1 MTS 1 1 16-1 019 → “0”=NO SET UP “1”=AUTO SETUP 0 0 0 0 TONE AUTO LAN 016 017 018 “1”=COL-TEMP “1”=SPANISH 1 1 AV2 013 014 015 011 → ”0”=FAV-COL 018 → “0”=ENGLISH 1 1 COMP FAV-COL 1 1 012 011 1 1 P.
US 4 CH LION HEAD (MONOSCOPE) AC 120V, US MAGNETIC FIELD CONFIRMATION BY CRT SCREEN CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE OPTION SET UP, BUS SET UP, CRT-PURITY PRE-ADJUST REQUIREMENT 0-31 17 17-1 [CHECKING SPEC] LEFT AND RIGHT SYMMETRICAL A B 1. ADJUST THE V07 BUS DATA TO HAVE A BALANCE POSITION TO SPEC OF A=B. 2.
US 4 CH LION HEAD (MONOSCOPE PATTERN) 120V, RF INPUT, ZERO MAGNETIC FIELD CONFIRMATION ON CRT SCREEN CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE OPTION SET UP, BUS SET UP, CRT-PURITY PRE-ADJUST REQUIREMENT 0-7 18 18-1 [CHECKING CONFIRMATION] ADJUST V06 BUS DATA TO HAVE MOST ACCEPTABLE VERTICAL POSITION.
NO SIGNAL (RASTER) CONDITION AC 120V IC 801 PIN 11 (MANUAL ADJ) CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE OPTION SET UP, BUS SET UP PRE-ADJUST REQUIREMENT 0-7 19 [CHECKING SPEC] FREQ = 15.735 ± 0.
TUNER AGC TERMINAL (TP 201) OR CRT DISPLAY CONFIRMATION OUTPUT ADJUSTMENT PROCEDURE INPUT CONDITION RF INPUT FIELD STRENGTH 56dBµV (FIX) INPUT CONDITION 20 [CHECKING SPEC] MAX - 0.1V dc 20-1 (AT MANUAL ADJUSTMENT MODE) 1. ADJUST THE V08 BUS DATA UNTIL AGC TERMINAL VOLTAGE BECOME MAXIMUM, THEN DROP 0.1V BELOW MAXIMUM VOLTAGE. 2. CHANGE THE ANTENNA INPUT SIGNAL TO 63-67 dBµV, AND MAKE SURE THERE IS NO NOISE 3.
23CH 501RE WINDOW PATTERN 120V CRT SCREEN DISPLAY. CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE OPTION SET UP, BUS SET UP, SCREEN PRE-ADJUST REQUIREMENT 0-127, 0~255 21 21-1 [CHECKING CONFIRMATION] X=0.273, Y=0.
WINDOW PATTERN 120V CRT SCREEN DISPLAY. CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE OPTION SET UP, BUS SET UP, SCREEN, WHITE BALANCE, SUB-BRIGHTNESS PRE-ADJUST REQUIREMENT 22 22-1 [VOLTAGER CONFIRMATION] BRIGHTNESS Y=150 cd/m2 WHITE US14 1) LET THE GUN POINT AT WHITE POSITION (AS ATTACH DRAWING), ADJUST V01 BUS DATA UNTIL BRIGHTNESS Y=150 cd/m2.
ADJUSTMENT PROCEDURE 23 Y 23-1 [CHECKING CONFIRMATION] W G 100% WHITE Cy Mg R B 1) SET THE V03 BUS DATA TO GET A WAVEFORM AS BELOW 2) THIS WAVEFORM SHOWS THAT THE 75% WHITE & RED PORTIONS OF COLOR BAR BEAT AT THE SAME LEVEL **PLEASE TAKE NOTE THAT SERVICE DATA F52 MUST SET TO +10 ADJUSTMENT PROCEDURE – 24.5V 18.9± 1.
AC 130V, RF INPUT CRT ANODE VOLTAGE INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE US 4 CH LION HEAD (MONOSCOPE PATTERN) CONTENT – 24 24-1 [CAUTION POINT] USE ELECTROSTATIC HI-VOLTAGE METER AND FOLLOW THE UL/ DHHS STANDARD TO MAKE CORRECTION AND CONTROL. BELOW 30kV HIGH VOLTAGE SET THE USER CONTROL TO SHIPMENT SETTING POSITION. PUSH ON Y-MUTE BY R/C CONFIRM THE VOLTAGE OF CRT ANODE BY HIGH VOLTAGE METER AND MAKE SURE THE READING IS AS BELOW. AFTER ALL ADJUSTMENT FINISHED.
AC 120V, RF INPUT CONFIRMATION BY CRT SCREEN INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE RATING SYS. DOWNLOAD SIGNAL A/B (PRCC SIG) INCLUDED SIGNAL. CONTENT 25 [COMFIRMATION] 25-1 ~ Do check one sample that been picked up for presenting the specified group sample. (UPLOADING CONFIRMATION) 1) RECEIVE THE DOWNLOAD B SIGNAL. 2) UNPLUG THE AC CORD AND PLUG IT AGAIN. 3) BACK TO V-CHIP CONTROL MENU, CHECK THE DOWNLOADED RATING AND NAME. (DOWNLOADING CONFIRMATION) 1) RECEIVE THE DOWNLOAD A SIGNAL.
SIGNAL WITHOUT NOISE (SIGNAL WITHOUT SOUND MODULATION) AC 120V IC 3001 39 PIN CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE OPTION SET UP, BUS SET UP, VCO ADJ, RF-AGC PRE-ADJUST REQUIREMENT 26 26-1 [CHECKING SPEC] 62.94 ± 0.75kHz (CHECKING SPEC : 62.94 ± 1.20kHz) 1) CONNECT 100 µ F ELECTROLLYTIC CAPACITOR BETWEEN C3005 (-ve)-GND 2) ADJUST THE BUS DATA M02 UNTIL THE OUTPUT FREQUENCY OF 39 PIN BECOME AS SPECIFIED BELOW. NOTE: TO MINIMIZE THE PRODUCTION TIME, ITEM 1) CAN IGNORE.
STEREO SIGNAL SIGNAL 1,: MODULATION 30%, L-CH ONLY, NR-ON, 300Hz SIGNAL 2,: MODULATION 30%, L-CH ONLY, NR-ON, 3kHz RF INPUT IC 3001 39 PIN CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PROCEDURE OPTION SET UP, BUS SET UP, VCO ADJ, RF-AGC, MS-LEVEL, MTS-VCO, FILTER PRE-ADJUST REQUIREMENT 27 27-1 [CHECKING SPEC] OVER 25 dB (CHECKING SPEC : OVER 20 dB) SET THE SOUND VOLUME TO MAXIMUM THEN MAKE SURE THE READING FROM THE SPEAKER TERMINAL MUST BE OVER THE SPEC AS SPECIFIED BELOW.
20F630 CU20F630 MODEL 20F630 CHASSIS LAYOUT 28
20F630 CU20F630 MODEL CU20F630 CHASSIS LAYOUT 29
20F630 CU20F630 MODEL 20F630 BLOCK DIAGRAM: MAIN Unit 30
20F630 CU20F630 31
20F630 CU20F630 MODEL CU20F630 BLOCK DIAGRAM: MAIN Unit 32
20F630 CU20F630 33
20F630 CU20F630 MODEL 20F630 BLOCK DIAGRAM: CRT Unit 34
20F630 CU20F630 MODEL CU20F630 BLOCK DIAGRAM: CRT Unit 35
20F630 CU20F630 MODEL 20F630 BLOCK DIAGRAM: MTS MODULE Unit 36
20F630 CU20F630 37
20F630 CU20F630 MODEL 20F630 BLOCK DIAGRAM: MTS MODULE Unit 38
20F630 CU20F630 39
20F630 CU20F630 DESCRIPTION OF SCHEMATIC DIAGRAM NOTES: WAVEFORM MEASUREMENT CONDITIONS: 1. The unit of resistance "ohm" is omitted. (K=kΩ=1000Ω, M=MΩ) 2. All resistors are 1/16 watt, unless otherwise noted. 3. All capacitors are µ F, unless otherwise noted. (P=pF=µµF) 4. (G) indicates ±2% tolerance may be used. 5. indicates line isolated ground. 1. Photographs taken on a standard gated color bar signal, the tint setting adjusted for proper color.
20F630 CU20F630 WAVEFORMS 1 1.024 Vp-p 2 5.69 Vp-p 3 5.69 Vp-p 4 5.84 Vp-p 5 2.00 Vp-p 6 2.08 Vp-p Horiz.Rate Horiz.Rate Horiz.Rate Horiz.Rate Vert.Rate Vert.Rate 7 6.56 Vp-p 8 6.40 Vp-p 9 4.88 Vp-p 0 158 Vp-p q 1140 Vp-p Horiz.Rate Horiz.Rate Horiz.Rate Horiz.Rate Horiz.Rate Vert.Rate e 3.8 Vp-p r 118 Vp-p t 440 Vp-p y 5.04 Vp-p u 5.12 Vp-p i 112.8 Vp-p Vert.Rate Horiz.Rate Horiz.Rate Horiz.Rate Vert.Rate Horiz.Rate o 94.4 Vp-p p 109.6 Vp-p Horiz.Rate Horiz.
20F630 CU20F630 MODEL 20F630 SCHEMATIC DIAGRAM: MAIN Unit H G F E D C B A 1 2 3 4 5 6 42 7 8 9 10
20F630 CU20F630 10 11 12 13 14 15 43 16 17 18 19
20F630 CU20F630 MODEL CU20F630 SCHEMATIC DIAGRAM: MAIN Unit H G F E D C B A 1 2 3 4 5 6 44 7 8 9 10
20F630 CU20F630 10 11 12 13 14 15 45 16 17 18 19
20F630 CU20F630 MODEL 20F630 SCHEMATIC DIAGRAM: CRT Unit H G F E D C B A 1 2 3 4 46 5 6
20F630 CU20F630 MODEL CU20F630 SCHEMATIC DIAGRAM: CRT Unit H G F E D C B A 1 2 3 4 47 5 6
20F630 CU20F630 MODEL 20F630 SCHEMATIC DIAGRAM: MTS MODULE Unit H G F E D C B A 1 2 3 4 5 6 48 7 8 9 10
20F630 CU20F630 10 11 12 13 14 15 49 16 17 18 19
20F630 CU20F630 MODEL CU20F630 SCHEMATIC DIAGRAM: MTS MODULE Unit H G F E D C B A 1 2 3 4 5 6 50 7 8 9 10
20F630 CU20F630 10 11 12 13 14 15 51 16 17 18 19
20F630 CU20F630 PRINTED WIRING BOARD ASSEMBLIES H G F E D C B PWB-A: MAIN Unit (Wiring Side) A 1 2 3 4 52 5 6
1 2 53 3 4 5 6 A PWB-A: MAIN Unit (Chip Parts Side) B2 F DC2 B RJ 7 1 RJ 7 0 Z2 A2 R3 8 2 R3 1 3 R3 8 1 RJ 4 8 R3 1 7 RJ 6 3 D5 0 1 R3 1 5 R1 0 2 4 R8 0 1 R3 1 4 RJ 2 3 RJ 1 5 C3 1 3 R3 2 1 C3 1 9 R3 1 2 R2 0 5 C8 0 6 C7 5 9 RJ 1 1 R3 8 4 RJ 3 0 R3 8 3 RJ 0 R3 11 0 R3 0 8 RJ 2 2 R7 6 8 R1 0 5 9 RJ 6 0 C3 2 0 RJ 2 1 RJ 5 9 C3 0 8 R4 3 1 R3 0 7 R7 4 3 R1 0 3 8 C2 1 1 R2 1 1 R2 0 6 RJ 3 R1 0 2 1 C2 1 0 C2 1 2 D8 1 5 R8 3 0 R8 2 9 R8 3 3 R8 0 4 R1 8 5 1 R8
20F630 CU20F630 H G F PWB-B: CRT Unit (Wiring Side) E D PWB-E: MTS MODULE Unit (Wiring Side) C R3 0 2 4 R3 0 2 5 RJ 1 0 R3 0 8 0 RJ 4 R3 0 8 1 Q3 0 0 7 R3 0 1 6 R3 0 0 4 R3 0 0 3 C3 0 0 2 I C3 0 0 2 R3 0 0 5 C3 0 0 8 R3 0 8 5 RJ 1 3 R3 0 8 4 C3 0 8 2 R3 03 RJ 76 RJ 2 B Q3 0 0 6 RJ 6 I C3 0 0 1 R3 0 0 7 R3 0 1 9 R3 0 0 8 R3 0 8 2 RJ 1 4 R3 0 0 1 R3 0 0 2 RJ 3 R3 0 1 0 C3 0 1 3 R3 0 1 8 R3 0 8 3 R3 0 2 6 C3 0 3 1 R3 0 2 9 C3 0 3 2 C3 0 2 6 Q3 0 0 4 C3 0 2 8 C3 0 4 3
20F630 CU20F630 Ref. No. ★ Part No. Description Code Ref. No. PARTS LIST ★ Part No. Description Code LISTE DES PIECES PARTS REPLACEMENT CHANGE DES PIECES Replacement parts which have these special safety characteristics identified in this manual ; electrical components having such features are identified by å and shaded areas in the Replacement Parts Lists and Schematic Diagrams.
20F630 CU20F630 Ref. No. D502 D503 D504 D505 D510 D601 D602 D603 D606 D608 å D701 D703 D704 D708 D710 D750 D751 D752 D755 D756 D801 D806 D807 D808 D810 D811 D812 D813 D815 D1004 D1081 D1085 D1086 D1087 D1088 D1089 D1090 D1091 å IC702 VA701 Part No.
20F630 CU20F630 Ref. No. C802 C803 C804 C805 C806 C807 C808 C809 C810 C811 C812 C813 C814 C815 C816 C817 C818 C819 C820 C821 C822 C823 C824 C825 C826 C827 C828 C829 C831 C833 C834 C835 C836 C837 C839 C840 C841 C842 C843 C845 C846 C847 C848 C1001 C1003 C1004 C1006 C1007 C1008 C1009 C1011 C1012 C1013 C1014 C1015 C1081 C1849 C1855 C1856 C1861 C1862 C1863 C1864 ★ Part No.
20F630 CU20F630 Ref. No. R602 R603 R604 R605 R606 å R608 å R611 å R612 R613 R614 R615 R616 R617 R618 å R621 R622 R631 R632 å R633 R637 R638 R639 R642 R643 R661 R662 R701 R702 R705 R706 R707 R708 R710 R711 R713 R715 R716 R717 R725 R726 R742 R743 R744 R745 R746 R753 R754 R755 R756 R759 R766 R767 R768 R802 R803 R804 R805 R806 R807 R808 R810 R812 R814 R815 R816 R817 R818 R823 R824 R826 R827 R828 R829 R830 R831 R832 Part No.
20F630 CU20F630 Ref. No. ★ Part No. Description Code Ref. No. S1004 QSW-K0202PEZZ+ X Switch, VOL.
20F630 CU20F630 Ref. No. ★ Part No.
20F630 CU20F630 Ref. No. Part No. ★ Description Code Ref. No. Part No.
20F630 CU20F630 PACKING OF THE SET 62
20F630 CU20F630
20F630 CU20F630 COPYRIGHT © 2003 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. TQ1492-S May 2003 Printed in Japan In Japan gedruckt Design and Production Information Design : JAPAN Production : SEMEX MY.
