Sony KV-20S90, KV-21SE43C service manual

TRINITRON® COLOR TELEVISION

SERVICE MANUAL

BA-4D

CHASSIS

MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.

Self Diagnosis

Supported model

KV-20S90

9-965-905-01

KV-20S90

RM-Y155 US SCC-S27NA

KV-21SE43C

RM-Y155 E SCC-S55BA

RM-Y155

Trinitron

Contents

Main BA-4D SERVICE MANUAL TRINITRON COLOR TELEVISION KV-20S90 / 21SE43C TABLE OF CONTENTS KV-20S90 / 21SE43C Television system Channel coverage Picture tube SPECIFICATIONS ! ! SAFETY CHECK-OUT To Exposed Metal Parts on Set 0.15 F 1.5 K AC Voltmeter (0.75 V) Earth Ground Trouble Light AC Outlet Box Ohmmeter Cold-water Pipe SELF-DIAGNOSTIC FUNCTION Self Diagnosis Page Page KV-20S90 / 21SE43C 1-4. PICTURE TUBE REMOVAL ANODE CAP REMOVAL PROCEDURE HOW TO HANDLE AN ANODE CAP SECTION 2: SET-UP ADJUSTMENTS 2-1. BEAM LANDING ADJUSTMENT PROCEDURE 2-2. CONVERGENGE VERTICAL STATIC CONVERGENCE Center dot V.STAT magnet b BMC magnet a DYNAMIC CONVERGENCE ADJUSTMENT SCREEN-CORNER CONVERGENCE 2-3. FOCUS 2-4. SCREEN (G2) pedestal GND 2-5. METHOD OF SETTING THE SERVICE ADJUSTMENT MODE SERVICE MODE PROCEDURE SERVICE ADJUSTMENT MODE IN Mode Display Item Item Data SERVICE HSIZ 0 Mode WRITE ENTER HOLD-DOWN READJUSTMENT ABL + IABL T504 FBT range - ampmeter 3.0 mA DC A Figure 1 IC541 X AMMETER 3mA dc range A TP600 4-1. SETTING THE SERVICE ADJUSTMENT MODE SERVICE ADJUSTMENT MODE ON ENTER VOLUME (+) Mode Carry out Step 1 when adjusting IDs 0-7 and when replacing and adjusting IC003 ADJUSTMENT ITEMS (1 OF 2) * = TV/VIDEO = 0 * = TV/VIDEO = 0 ** = TV = 0, VIDEO = 1 ID MAP ADJUSTMENT ITEMS (2 OF 2) 4-4. A BOARD ADJUSTMENTS H. FREQUENCY ADJUSTMENT V. FREQUENCY CHECK SUB CONTRAST ADJUSTMENT (RDRV) White Black DISPLAY POSITION ADJUSTMENT (DISP) SUB BRIGHT ADJUSTMENT (SBRT) V. SIZE ADJUSTMENT (VSIZ) V. CENTER ADJUSTMENT (VPOS) H. CENTER ADJUSTMENT (HPOS) V. LINEARITY (VLIN), V. CORRECTION KV-20S90 / 21SE43C 5-2. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM INFORMATION 5-1. CIRCUIT BOARDS LOCATION A Board REFERENCE INFORMATION SECTION 5: DIAGRAMS 5-3. BLOCK DIAGRAM AND SCHEMATICS BLOCK DIAGRAM DY ASSY TUNER/IF,AUDIO,MTS TUNING CONTROL, Y/C/J POWER SUPPLY,DEFLECTION, {} J 17 18 19 BA4D-905-A CN1751 IN (*) A BOARD VARIANT MODEL LIST A BOARD IC VOLTAGE LIST IC541: AN5522 IC521: NJM4558M-TE2 A BOARD IC BLOCK DIAGRAMS KV-20S90/21SE43C IC301: CXA2133BS 45 VCC1 1 REF GND1 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 [TUNING CONTROL, Y/C/J, POWER SUPPLY, DEFLECTION, TUNER/IF, AUDIO, MTS] 1-673-985-51 IC401 CN203 1 | 2 | 3 | 4 | 5 | 6 | C BOARD SCHEMATIC DIAGRAM RBG DRIVER ) CN1752 1 | 2 | 3 | 4 | 5 | [RGB DRIVE, CRT DRIVE] C BOARD WAVEFORMS 1-673-986-11 C BOARD IC VOLTAGE LIST 5-4. SEMICONDUCTORS SECTION 6: EXPLODED VIEWS * 6-1. CHASSIS (KV-20S90/21SE43C) SECTION 7: ELECTRICAL PARTS LIST * Page Page Page Page Page Page Sony Corporation 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | A BOARD SCHEMATIC DIAGRAM +5V SET-5V 30V 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CN1752 TP300 BLUE OUT J IN ERC06-15S IC602 Q601 <TUNING CONTROL> D541 TP503 H.PROT DEFLECTION Page Page WARNING Note to the CATV Installer SAFETY PRECAUTIONS CAUTION NOTIFICATION Protecting the TV Note on Caption Vision Owners Record Trademarks and Copyrights Important Safeguards WARNING Use Power Sources Grounding or Polarization Installation Water and Moisture Accessories Ventilation Power-Cord Protection Grounding or Polarization Antennas Outdoor Antenna Grounding Antenna Grounding According to the NEC Lightning Service Damage Requiring Service Servicing Replacement Parts Safety Check Page Contents Page Introduction Trinitron Color TV Features Batteries for the Remote Control About this Manual Connecting Your TV Basic Connections 4 Connecting Additional Equipment TV and VCR 1 2 5 1 2 6 TV, VCR, and Cable box 1 2 3 Rear of TV VCR Cable Box Page Page Using the Remote Control and Basic Functions Using the Remote Control and Basic Functions Page 11 Setting Up the TV Automatically 1 2 3 4 Quick Start to the Menus The following settings are available in your on-screen menus: Using the Menus To access a menu 1 2 3 Using the VIDEO menu Using the AUDIO menu Using the Menus Using the TIMER menu Except KV-13M42 Using the SET UP menu Using the Menus CHANNEL SET UP menu 18 Using PARENTAL CONTROL Overview of the Ratings TV RATINGS 19 MOVIE RATINGS UNRATED 20 ENGLISH RATINGS FRENCH RATINGS U.S.A. RATINGS Page 22 Setting the RATING 1 2 Using the CUSTOM menu 1 2 3 4 1 2 Page Other Information Other Information Troubleshooting Page Other Information Specifications For all models (except as noted) Page 29 Index Page Page Page Page Page Page Page PRINTING THE SERVICE MANUAL T NON-SCHEMATIC PAGES SCHEMATIC DIAGRAMS ON-SCREEN SEARCH OPTION BA-4D TRINITRON COLOR TELEVISION