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ORIGINAL MANUAL ISSUE DATE: 12/2010 REVISION DATE SUBJECT 12/2010 Original Manual Release Date. 1/25/2011 Added KDL-22BX320 MX/LA and KDL-22BX321 MX models. Reissue entire manual. 11/7/2011 Added Accessories and Packing to Electrical Parts List. Replaced page 31. LCD DIGITAL COLOR TV 9-883-850-53...
KDL-22BX320/22BX321 SAFETY-RELATED COMPONENT WARNING There are critical components used in LCD color TVs that are important for safety. These components are identified with shading and mark on the schematic diagrams and the electrical parts list. It is essential that these critical parts be replaced only with the part number specified in the electrical parts list to prevent electric shock, fire, or other hazard.
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Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade. This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics. For more information on the use of Lead Free Solder, please refer to http://www.sony-training.com KDL-22BX320/22BX321...
KDL-22BX320/22BX321 SAFETY CHECK-OUT The AC leakage from any exposed metal part to earth ground and After correcting the original service problem, perform the following from all exposed metal parts to any exposed metal part having a safety checks before releasing the set to the customer: return to chassis, must not exceed 0.5 mA (500 microamperes).
KDL-22BX320/22BX321 SECTION 1: DIAGRAMS 1-1. CIRCUIT BOARDS LOCATION SWITCH UNIT 1-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS INFORMATION All capacitors are in µF unless otherwise noted. pF : µµF 50WV or All voltages are in V. less are not indicated except for electrolytics and tantalums. S : Measurement impossibility.
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KDL-22BX320/22BX321 REFERENCE INFORMATION Terminal name of semiconductors in silk screen printed circuit ( RESISTOR CAPACITOR : RN METAL FILM : TA TANTALUM Circuit Device Printed symbol Terminal name : RC SOLID : PS STYROL Collector : FPRD NONFLAMMABLE CARBON : PP POLYPROPYLENE Transistor Base...
KDL-22BX320/22BX321 1-3. BLOCK DIAGRAM TUNER CLASS D AUDIO COMPOSITE OR COMPONENT 1 COMPONENT 2 ANALOG AUDIO OUT MT5388 HDMI 1 A/V DECODER OPTICAL AUDIO OUT A/V PROCESS HDMI 2 PC HD15 LVDS INVERTER USB2.0 LCD PANEL SWITCH UNIT IR RX 24V B+ AND CTL AC IN...
KDL-22BX320/22BX321 SECTION 2: ELECTRICAL PARTS LIST Items marked with an asterisk are not stocked since they NOTE: The components identified by shading RESISTORS are seldom required for routine service. Expect some delay mark are critical for safety. Replace only • All resistors are in ohms when ordering these components.
APPENDIX A: ENCRYPTION KEY COMPONENTS Encryption key components developed by Sony Corporation contain confidential information, and shall be handled under the non-disclosure obligations provided in the applicable agreement with Sony Corporation (and/or its subsidiary). As part of this agreement specific instructions must be adhered to whenever a Circuit Board containing encryption key components is repaired and/or replaced pursuant to the following: 1) In the service manual the Circuit Board(s) containing encryption key components shall be identified with a red outline and a .