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Sony FDL-250T Service Manual
Sony FDL-250T Service Manual

Sony FDL-250T Service Manual

Lcd color tv
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SERVICE MANUAL

MODEL
COMMANDER
––––––
––––––––––––
FDL-250T
MICROFILM
∗ Please file according to model size. .......
2.5
DEST. CHASSIS NO.
––––– –––––––––––
US
MODEL
COMMANDER
––––––
––––––––––––
LCD COLOR TV
DEST. CHASSIS NO.
––––– –––––––––––

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Summary of Contents for Sony FDL-250T

  • Page 1: Service Manual

    SERVICE MANUAL MODEL COMMANDER DEST. CHASSIS NO. MODEL COMMANDER DEST. CHASSIS NO. –––––– –––––––––––– ––––– ––––––––––– –––––– –––––––––––– ––––– ––––––––––– FDL-250T LCD COLOR TV MICROFILM ∗ Please file according to model size..
  • Page 2: Table Of Contents

    MATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE CRITICAL TO SAFEOPERATION ARE IDEN- TIFIED IN THIS MANUAL.
  • Page 3: General

    2 Push and slide the battery cover open. AA (LR6) 3 Insert three batteries. Be sure to insert the (-) polarity of each battery first as illustrated. × Battery Life: With continuous use, Sony LR6 alkaline batteries will last about 3.0 hours. Battery Type Size Battery Life Approx.
  • Page 4: Using With Video Equipment (See Fig. D)

    + direction. serial number in the space provided below. Refer to these numbers • The video equipment is not connected properly. whenever you call upon your Sony dealer regarding this product. Snowy or indistinct picture Model No. FDL-250T Serial No.
  • Page 5: Disassembly

    SECTION 2 SECTION 3 DISASSEMBLY CIRCUIT ADJUSTMENTS [SETUP](A BOARD ) < A BOARD ALIGNMENT > 3-2.AFT FINE ADJUSTMENT (T201) < B BOARD ALIGNMENT > 2-2. LCD CASE AND B BOARD REMOVAL 2-1. CASE, A BOARD AND H BOARD REMOVAL 1. Apply a DC voltage of 4.5V±0.1V to the J601 terminal (DC 3-1.VIF.AFT ROUGH ALIGNMENT (T201, T202) 1.
  • Page 6: Block Diagram

    4-1. BLOCK DIAGRAM J101 IC302 EXT ANT Y/C/J CN201 CN301 CN401 VIDEO IN R OUT STHL IC201 RF IN STHL VIF/SIF DET SYNC SEP -10V -10V -10V G OUT IF AMP FILTER IF AMP TU101 R IN B OUT CK1A Q201 SWF201 CPH1...
  • Page 7: Circuit Boards Location

    FDL-250T 4-2. CIRCUIT BOARDS LOCATION : ALB BIPOLAR : ALT HIGH TEMPERATURE : ALR HIGH RIPPLE Note: The symbol display is on the component slde. The components identified by shading and mark are critical for safety. Replace only with part number specified.
  • Page 8: A Board

    FDL-250T TUNER, ELECTRONIC TUNING, VIF, SIF, POWER – A Board – A BOARD DIODE UPPER LOWER D001 CN202 CN201 D002 -10V D003 D.GND AUDIO D201 AUDIO D202 VIDEO AUDIO D501 A.GND UNREG GND D600 7.5V AUDIO A.GND D601 D.GND D602...
  • Page 9 ABOARD : IC201 M51348AFP A BOARD : IC600 MB3800PFV BUFFER AUDIO OUT REFERENCE VOLTAGE DC F/B SAW-WAVE E-VDL GENERATOR 1.25V LIMITER 0.1V ERROR AMP FM DET IN. SIF IN PWM COMP FM DET OUT PUT DRIVE LIMITER OUT Vcc(SIF) CONTROL 0.5V CIRCUIT AFT OUT...
  • Page 10 B BOARD : IC302 IR3Y29B4 24 23 22 18 17 B DC DET SYNC GAMMA 2 GAMMA 0 RGB AMPLITUED ADJUST CHROMA OUT ACC FILTER KILLER FILTER BRIGHT SUB BRIGHT B SUB BRIGHT R INT/EXT SW R-Y G-Y B-Y MATRIX BURST OUT COLOR COMMON...
  • Page 11: B Board

    FDL-250T Y/C/J, LCD CONTROL – B Board – CN301 CN401 B BOARD STHL -10V DIODE D.GND CPH1 CPH2 UPPER LOWER CPH3 VIDEO D301 A.GND D302 7.5V D401 A.GND TRANSISTOR D.GND STHR AVDD UNREG GND VCOM UPPER LOWER UNREG GND UNREG...
  • Page 12: H Board

    FDL-250T HEAD PHONE,BRIGHT/AUDIO VOL – H Board – CN550 AUDIO AUDIO AUDIO UNREG GND AUDIO < Component Side > < Conductor Side > – 20 –...
  • Page 13: Semiconductors

    FDL-250T 4-4. SEMICONDUCTORS AN5707NFAP XN1115 MA335 MA335-TX TOP VIEW ANODE 32pin CATHODE IR3Y29B4 XN4215 UPS015 SB01-15CP XN4215-TW ANODE CATHODE SB05-05CP TOP VIEW MB3800PFV-G-BND-EF NJM2070M XP4601 NJM2070M-TEZ XP4601-TXE NJM3414AV(TE2) MA152WK-TX TOP VIEW 1SS184 8pin M51348AFP M51348AFP-E1 XP6501 XP6501-TXE TOP VIEW MA157-TX...
  • Page 14: Exploded Views

    FDL-250T SECTION 5 EXPLODED VIEWS NOTE: • Items with no part number and no • Items marked " " are not stocked since description are not stocked because they they are seldom required for routine The components identified by shading and are seldom required for routine service service.
  • Page 15: Electrical Parts List

    FDL-250T SECTION 6 ELECTRICAL PARTS LIST • Items marked " * " are not stocked since they are • CAPACITORS PF : µµ F seldom required for routine service. Some delay The components identified by shading and should be anticipated when ordering these mark are critial for safety.
  • Page 16 FDL-250T REF. NO. PART NO. DESCRIPTION REMARK ––––––––– REF. NO. PART NO. DESCRIPTION REMARK –––––––– ––––––––– ––––––––––––– –––––––– ––––––––– ––––––––––––– ––––––––– IC401 8-759-710-79 IC NJM2107F R330 1-216-857-11 RES,CHIP 1/16W IC403 8-759-642-43 IC UPS015 R331 1-216-843-11 RES,CHIP 1/16W R332 1-216-841-11 RES,CHIP...
  • Page 17 FDL-250T REF. NO. PART NO. DESCRIPTION REMARK ––––––––– REF. NO. PART NO. DESCRIPTION REMARK –––––––– ––––––––– ––––––––––––– –––––––– ––––––––– ––––––––––––– ––––––––– R428 1-216-833-91 RES,CHIP 1/16W C202 1-164-739-11 CERAMIC CHIP 560pF R429 1-216-841-11 RES,CHIP 1/16W R431 1-216-017-91 RES,CHIP 1/10W C203 1-164-156-11 CERAMIC CHIP 0.1µF...
  • Page 18 FDL-250T The components identified by shading and mark are criti- cal for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK ––––––––– REF. NO. PART NO. DESCRIPTION REMARK –––––––– ––––––––– ––––––––––––– –––––––– ––––––––– ––––––––––––– ––––––––– C801 1-124-288-00 ELECT 22µF...
  • Page 19 FDL-250T The components identified by shading and mark are criti- cal for safety. Replace only with part number specified. REF. NO. PART NO. DESCRIPTION REMARK ––––––––– REF. NO. PART NO. DESCRIPTION REMARK –––––––– ––––––––– ––––––––––––– –––––––– ––––––––– ––––––––––––– ––––––––– R022...
  • Page 20 ***************** 1-504-847-11 SPEAKER (2.8cm) 1-675-949-11 FLEXIBLE BOARD 1-754-098-11 ANTENNA, STRAP 1-803-809-11 INDICATOR MODULE, LIQUID CRYSTAL ************************************************************* ACCESSORIES AND PACKING MATERIALS *************************************** 3-867-899-11 MANUAL, INSTRUCTION English Sony Ichinomiya Corporation 99IR74253-1 Printed in USA 9-965-268-01 Quality Assurance Division ©1999.9 – 28 –...

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