Sony FDL-PT22/JE Service Manual
Sony FDL-PT22/JE Service Manual

Sony FDL-PT22/JE Service Manual

Sony lcd color tv service manual fdl-pt22 us fdl-pt22/je

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SERVICE MANUAL

MODEL
COMMANDER
FDL-PT22
FDL-PT22/JE
Please file according to model size. ....
2.2
MODEL
DEST. CHASSIS NO.
US
JE
COMMANDER
DEST. CHASSIS NO.
LCD COLOR TV

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Summary of Contents for Sony FDL-PT22/JE

  • Page 1: Service Manual

    SERVICE MANUAL MODEL COMMANDER FDL-PT22 FDL-PT22/JE Please file according to model size..MODEL DEST. CHASSIS NO. COMMANDER DEST. CHASSIS NO. LCD COLOR TV...
  • Page 2 COMPONENTS IDENTIFIED BY SHADING AND MARK ¡ ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS AP- PEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY.
  • Page 3: Table Of Contents

    Section Title 1. GENERAL 2. DISASSEMBLY 2-1. Cabinet Removal ... 2-2. Service Position ... 3. CIRCUIT ADJUSTMENTS 3-1. A Board Adjustment ... 3-2. T Board Adjustment ... 3-3. B Board Adjustment ... TABLE OF CONTENTS Page Section 4. DIAGRAMS 4-1. Block Diagram ...
  • Page 4: General

    Push and slide the battery cover open. Insert three batteries. Be sure to insert the (–) polarity AA(LR6) of each battery first as illustrated. Battery Life: With continuous use, Sony LR6 alkaline batteries will last about 3.0 hours. Battery Type Size...
  • Page 5 External Antenna Connection (see fig. C) Connect an antenna cord EAC-39 (not supplied) or EAC- 110 (not supplied) to the TV. This will improve the TV’s reception. To EXT ANT Mixer 75 coaxial cable Feeder EAC-39 antenna cable (not supplied) EAC-110 antenna cable (not supplied)
  • Page 6: Disassembly

    2-1. CABINET REMOVAL 1. Remove battery cover 8. 2. Push the two hooks in the lower section of the rear cabinet with a pint and the like to undo them. Hooks 3. While pressing the rear cabinet, undo hooks on the periphery. 4.
  • Page 7: Service Position

    2-2. SERVICE POSITION Service cord 1-900-211-84 B board CN301 AC Power adapter AC-E45HG CN601 J101 Mini jack – 7 – CN602 A board Service cord 1-900-211-84 T board CN201 Antena...
  • Page 8: Circuit Adjustments

    3-1. A BOARD ADJUSTMENT +4.5V ADJUSTMENT Measure the voltage between JL32 (4.5V) and JL33 (GND) with a digital voltmeter, and adjust RV601 so that the voltage will be as follows: <Specification> 4.45 0.05VDC S601: UHF position CONFIRMATION OF +30V Measure the voltage between JL29 (30V) and JL33 (GND) with a digital voltmeter, and adjust RV601 so that the voltage will be as follows: <Specification>...
  • Page 9 Approx. 1.0Vp 45.75MHz Fig.3-2 (3) Remove the external voltage (MGC) from JL51. (4) Connect the output between JL31 (AFT) and JL30 (D.GND) to an oscilloscope, and roughly adjust T201 so that the position of 45.75MHz will be a zero cross. (5) Remove 1k from the section between JL77 (4.5V) and JL28 (RF AGC).
  • Page 10: B Board Adjustment

    3-3. B BOARD ADJUSTMENT - B BOARD - (COMPONENT SIDE) RV301 RV402 GRADATION ADJUSTMENT (1) Input a 10-step staircase signal from the test signal generator. (2) Connect an oscilloscope probe between JL83 (G) and JL67 (D. GND) and observe the waveform. (3) The contrast should change when RV402 is turned.
  • Page 11: Diagrams

    SECTION 4 DIAGRAMS 4-1. BLOCK DIAGRAM IF AMP FILTER Q201 SWF201 AGC OUT TU101 TUNER RF IN IC001 TUNER CONTROL AGC DL RV201 Q006 COMPOSITION DEFEAT OUTPUT TUNING CONTROL BAND SELECT E-VDL SIGNAL FH SW DEFECT Q005 Q205 FM DET BAND SELECT CF202...
  • Page 12: Circuit Boards Location

    4-2. CIRCUIT BOARDS LOCATION Terminal name of semiconductors in silk screen printed circuit ( Device Printed symbol Transistor Transistor Diode Diode Diode Diode Diode Diode 4-3. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Diode Diode Note: Reference information • All capacitors are in F unless otherwise noted. pF : F 50WV or less are not RESISTOR : RN...
  • Page 13: T Board

    T BOARD : IC201 M51348AFP AUDIO OUT BUFFER GND (SIF) E-VDL DC F/B LIMITER FM DET IN SIF IN FM DET LIMITER OUT Vcc (SIF) AFT OUT VIDEO AMP GND (VIF) VIDEO OUT IF IN REF COIL IF IN VIDEO REF COIL Vcc (VIF) AFT COIL...
  • Page 14 CN602 D.GND C501 0.01 4.5V B:CHIP AUDIO AUDIO TO T BOARD CN201 H.SYNC VIDEO VIDEO S001 DOWN A.GND UP DOWN SW S002 R028 :CHIP R617 :CHIP S601 F601 125V DRY BATTERY 3PCS. 4.5V L701 100µH R701 1/8W :CHIP Q701 2SC2873Y C701 Q702 6.3V...
  • Page 15: A Board

    A BOARD : IC501 NJM2070M A BOARD D406 D601 D602 +INPUT BIAS D603 D604 D605 D701 -INPUT OUTPUT IC501 POWER TRANSISTOR 100k Q401 Q601 Q602 Q603 Q610 Q701 Q702 VARIABLE RESISTOR A BOARD IC RV450 VOLTAGE LIST RV501 RV601 Pin Volt IC501 1 All voltage are in V.
  • Page 16 4.5V CHROMA LCD INTERFACE CN301 D.GND 4.5V H.P. R301 R309 4.5V :CHIP :CHIP D.GND C303 C311 C301 TO A BOARD A.GND 180p 0.01 B:CHIP :CHIP 6.3V CN601 H.SYNC C302 VIDEO CH:CHIP R303 A.GND X301 :CHIP 3.58MHz D303 VCXO MA8051 VIDEO IC301 M52042FP VIDEO...
  • Page 17: B Board

    B BOARD IC VOLTAGE LIST B BOARD Pin Volt Pin Volt Pin Volt DIODE IC301 1 D301 IC401 1 D302 D303 D401 D403 D404 D405 IC301 IC401 33 GND TRANSISTOR 13 GND Q302 Q303 Q402 Q403 39 GND Q406 Q407 Q408 VARIABLE RESISTOR...
  • Page 18: Semiconductors

    4-4. SEMICONDUCTORS A71-2980 XN4601 SB-01-15CP SB05-05CP TOP VIEW 44 pin QFP AN5707NFAP MA8043 XP4601 MA8240 MA8360 TOP VIEW ANODE 32 pin QFP M51348AFP M52045FP 11EQS04 2SD1119-Q 1 TOP VIEW 24 pin SOP NJM2070M 2SD1819A 8 pin SOP UN2110 MA152WK UN211D UN2210 UN5210 2SB709A...
  • Page 19: Electrical Parts List

    Les composants identifies par The components identified by ¡ une trame et une marque shading and mark are criti- cal for safety. sont critiques pour la securite. Ne les remplacer que par une Replace only with part number piece portant le numero specifie. specified.
  • Page 20 (a)(b) REF. NO. PART NO. DESCRIPTION ------------ ------------- ------------------- RV501 1-223-900-21 RES, VAR 10K RV601 1-223-581-11 RES, ADJ, CARBON 220 <SWITCH> S001 1-571-532-21 SWITCH, TACTIL S002 1-571-532-21 SWITCH, TACTIL S601 1-762-368-11 SWITCH, SLIDE <TRANSFORMER> T601 1-431-580-11 TRANSFORMER, DC-DC CONVERTER T701 1-427-918-11 TRANSFORMER, CONVERTER ************************************************************* * A-4954-035-A B BOARD, COMPLETE...
  • Page 21 Les composants identifies par The components identified by ¡ une trame et une marque shading and mark are criti- cal for safety. sont critiques pour la securite. Ne les remplacer que par une Replace only with part number piece portant le numero specifie. specified.
  • Page 22 3-864-858-01 MANUAL, INSTRUCTION 1/10W 8.2K 1/10W 1/10W 1/10W 1/10W 180K 1/10W 1/10W 1/10W Sony Ichinomiya Corporation Quality Assurance Division – 34 – The components identified by ¡ ¡ shading and mark are criti- cal for safety. Replace only with part number specified.

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Fdl-pt22

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