THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE 4-3. Test Test Mode ........... PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN WARNING !! SUPPLEMENTS PUBLISHED BY SONY.
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 - 3 -...
KF-42SX300 RM-906 21 pin connector Pin No Signal Signal level Audio output B Standard level : 0.5V rms (right) Output impedence : Less than 1kohm* Audio input B Standard level : 0.5V rms (right) Output impedence : More than 10kohm* Audio output A Standard level : 0.5V rms...
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KF-42SX300 RM-906 SECTION 1 SELF DIAGNOSIS FUNCTION LE-4A Self Diagnostic Software The identification of errors within the LE-4A chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous flashing LED) and then communicate with each device in turn to establish if a device is faulty.
KF-42SX300 RM-906 SECTION 3 DISASSEMBLY 3-1. REAR COVER REMOVAL 3-2. CENTER PILLAR REMOVAL Rear cover Three screws (+BVTP 4x16) Three Center fasten tags pillar Two screws (+PSW 3x8) Two screws Eleven screws (+BVTP 4x16) (+BVTP 4x16) 3-3. SERVICE POSITION 3-4. CHASSIS, OPTICAL UNIT, DC FAN REMOVAL...
KF-42SX300 RM-906 3-9. A BOARD REMOVAL 3-10. G BOARD REMOVAL Nine connectors G bracket Two fasten tags Fasten tag 1 Two screws (+BVTP 4 X 16) Connector Two claws A board 3 G board 1 Screw (+BVTP 4 X 16) 3-11.
KF-42SX300 RM-906 3-13. FRONT COVER REMOVAL 3-14. CONTROL PANEL REMOVAL 1 Two screws (+BVTP 4 X 16) 1 Four strikes 2 Control panel block assembly 2 Front cover L 1 Two screws (+BVTP 4 X 16) 2 Front cover R 1 Four strikes 3-15.
KF-42SX300 RM-906 SECTION 4 ELECTRICAL ADJUSTMENTS 4-1. Adjustments with Commander 4-1-2. Programming the Remote Commander for Operation in Service Mode Service adjustments to this model can be performed using the Press the VCR/TV/DVD button until the supplied remote Commander RM-906.
KF-42SX300 RM-906 4-1-5. Operation Method for Adjustments 4-3. TEST-TEST MODE Is available by programming the Remote Commander for operation in Service Mode [ As shown on Page 27 ] then pressing the VIDEO TV STANDBY VIDEO STANDBY button twice, OSD 'TT' appears. The functions describe below are available by selectingthe two numbers.
5-1. BLOCK DIAGRAMS (3) IC2501 SCANRATE, BACKEND, B DRIVE CN2551 DIGITAL GAMMA, LCD DRIVERS D-A 0 SID OUT Q2502 P SIG-OB P SIG-OB SID OUT Q2504 D-A 1 B-SIG 01 B-SIG 01 SIG-B6 SH OUT 1 D-A 2 B-SIG 02 B-SIG 02 SIG-B5 SH OUT 2...
5-1. BLOCK DIAGRAMS (4) 5-2. CIRCUIT BOARD LOCATION Reference Information RESISTOR : METAL FILM : SOLID FPRD : NON FLAMMABLE CARBON FUSE : NON FLAMMABLE FUSIBLE : NON FLAMMABLE METAL OXIDE : NON FLAMMABLE CEMENT : NON FLAMMABLE WIREWOUND CVM Board IC3800 S1 Board CN3801...
B-#SSLE4A<...>-A..-42SX300 150K 0.47 8.2K 0.47 5.6K 5.6K HP OUT 1/3 TUNER, AUDIO, REGULATORS TO J BOARD CN3804 COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL ~ A Board Schematic Diagram [ Tuner, Audio, Regulators ] Page 1/3 ~ - 34 -...
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B-#SSLE4A<...>-A..-42SX300 TO H1 BOARD CN4404 TO H2 BOARD BTF-EF411 CN4401 ~ A Board Schematic Diagram [ Tuner, Audio, Regulators ] Page 2/3 ~ - 35 -...
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COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL B-#SSLE4A<...>-A..-42SX300 ~ A Board Schematic Diagram [ Tuner, Audio, Regulators ] Page 3/3 ~ - 36 -...
~ A Printed Wiring Board Conductor Side ~ ~ A Board Semiconductor Location Table ~ ~ A Board Semiconductor Voltage Table ~ ~ A Board IC Voltage Table ~ - 37 -...
B-#SSLE4A<...>-B..-42SX300 COMB FILTER MEMORY 3D COMB FILTER CHROMA DECODER 1/3 MICRO, 3D COMB COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL ~ B Board Schematic Diagram [ Micro, 3D Comb ] Page 1/3 ~ - 38 -...
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TO C BOARD CN3004 CN3004 & CN3007 B-#SSLE4A<...>-B..-42SX300 2.7K 8.2K 100K CN5201 ~ B Board Schematic Diagram [ Micro, 3D Comb ] Page 2/3 ~ - 39 -...
~ B Printed Wiring Board Conductor Side A ~ ~ B Board Semiconductor Location Table (A Side) ~ ~ B Printed Wiring Board Conductor Side B ~ ~ B Board Semiconductor Location Table (B Side) ~ - 41 -...
B-#SSLE4A<...>-C..-42SX300 1/4 SCANRATE, BACKEND, DIGITAL GAMMA, LCD DRIVERS DISPLAY PROCESSOR AND SCALER 12-STAGE BINARY COUNTER VOLTAGE DETECTOR 6.3V COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL ~ C Board Schematic Diagram [ Scanrate, Backend, Digital Gamma, LCD Drivers ] Page 1/4 ~ - 42 -...
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B-#SSLE4A<...>-C..-42SX300 OCTAL BUS BUFFER 12C DIGITAL TEMP SENSOR ~ C Board Schematic Diagram [ Scanrate, Backend, Digital Gamma, LCD Drivers ] Page 2/4 ~ - 43 -...
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B-#SSLE4A<...>-C..-42SX300 PICTURE TUBE (G) PICTURE TUBE (B) +5V REGULATOR PICTURE TUBE (R) COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL ~ C Board Schematic Diagram [ Scanrate, Backend, Digital Gamma, LCD Drivers ] Page 3/4 ~ - 44 -...
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B-#SSLE4A<...>-C..-42SX300 ANALOG MUX/DEMUX COLOUR DECODER & SCANRATE CONVERTER TO J BOARD CN3806 & CN3807 ~ C Board Schematic Diagram [ Scanrate, Backend, Digital Gamma, LCD Drivers ] Page 4/4 ~ - 45 -...
~ G Printed Wiring Board Conductor Side ~ ~ G Board IC Voltage Table ~ ~ G Board Semiconductor Voltage Table ~ ~ H1 Printed Wiring Board Conductor Side ~ ~ H2 Printed Wiring Board Conductor Side ~ ~ H3 Printed Wiring Board Conductor Side ~ ~ T Printed Wiring Board Conductor Side ~ Note : Portions of the circuit contained within...
~ H1 Board Schematic Diagram [ User Key, Sircs ] ~ ~ H2 Board Schematic Diagram [ LED Indicators ] ~ B-#SSLE4A<...>-H1.-42SX300 H2.-42SX300 COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL R4404 R4405 1/10W 1/10W C4404 R4411 Q4403 2SC1623-L5L6 1/10W Q4405...
KF-42SX300 SECTION 6 RM-906 EXPLODED VIEWS NOTE : Items with no part number and no description are not Items marked “*” are not stocked stocked because they are seldom required for routine since they are seldom required for service. routine service. Some delay should...
KF-42SX300 RM-906 6-3. MAIN BRACKET BLOCK The components identified by shading £ and mark are critical for safety. Replace only with part number specified. REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK *4-096-934-11 BRACKET, MAIN 7-685-663-79 SCREW +BVTP 4X16 TYPE2 IT-3...
KF-42SX300 RM-906 6-4. PICTURE TUBE BLOCK The components identified by shading £ and mark are critical for safety. Replace only with part number specified. REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK - 60 -...
SECTION 7 ELECTRICAL PARTS LIST PARTS LISTING TABLE OF CONTENTS Page B BOARD COMPLETE Parts List : ....................62 A BOARD COMPLETE Parts List : ....................67 J BOARD COMPLETE Parts List : ....................72 T BOARD COMPLETE Parts List : ....................
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REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK MISCELLANEOUS 1-825-580-11 LOUDSPEAKER (10CM) 1-544-857-11 SPEAKER (13X7CM) 8-598-535-20 FRONTEND BTF-EF411 1-419-965-11 COIL, CHOKE 27.0MMH £ 1-765-286-11 CORD, POWER 1-787-057-11 D.C. FAN 1-418-257-11 FAN UNIT, DC £ 1-468-798-13 POWER SUPPLY BLOCK ACCESSORIES AND PACKAGING MATERIALS *4-096-824-01 SHEET, POLYTHENE *4-096-825-01 TOP, COVER *4-096-826-01 BASE TRAY...
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• User programmable Functional Check through Infrared • Fast and documented Test Mode setting of all Sony TV chassis Additional features such as Adjustments and Troubleshooting are available in chassis-dependent software modules. Please contact your local Sony Service organisation for the latest information.