Sony FD TRINITRON KV-21LT1K Service Manual
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Sony FD TRINITRON KV-21LT1K Service Manual

Sony FD TRINITRON KV-21LT1K Service Manual

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SERVICE MANUAL
MODEL
COMMANDER
KV-21LT1B
KV-21LT1E
KV-21LT1K
KV-21LT1U
All manuals and user guides at all-guides.com
DEST
CHASSIS NO.
RM-887
French
SCC-Q54C-A
RM-887
Spanish SCC-Q53C-A
RM-887
OIRT
SCC-Q51C-A
RM-887
UK
SCC-Q52C-A
KV-21LT1
MODEL
KV-21FT2K
RM-889
RM-887
1
FE-2
CHASSIS
COMMANDER
DEST
CHASSIS NO.
RM-887
OIRT
SCC-Q51E-A
KV-21FT2

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  • Page 1 All manuals and user guides at all-guides.com SERVICE MANUAL FE-2 CHASSIS MODEL MODEL COMMANDER DEST CHASSIS NO. COMMANDER DEST CHASSIS NO. KV-21LT1B KV-21FT2K RM-887 French SCC-Q54C-A RM-887 OIRT SCC-Q51E-A KV-21LT1E RM-887 Spanish SCC-Q53C-A KV-21LT1K RM-887 OIRT SCC-Q51C-A KV-21LT1U RM-887 SCC-Q52C-A KV-21LT1 RM-889 RM-887...

  • Page 2: Table Of Contents

    TANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, THESE COMPONENTS WITH SONY PARTS WHOSE PART NE LES REMPLACER QUE PAR DES COMPSANTS SONY DONT LE NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL SUPPLEMENTS PUBLISHED BY SONY.
  • Page 3 All manuals and user guides at all-guides.com o i t t a l i r T t i n ) y l l f e o i t . s l . s l e i l , t x n i l o i t i n i...
  • Page 4 All manuals and user guides at all-guides.com y t i WARNING (UK Models only) The flexible mains lead is supplied connected to a B.S. 1363 fused plug having a fuse of 5 AMP rating. Should the fuse need to be replaced, use a 5 AMP FUSE approved by ASTA to BS 1362, ie one that carries the mark.

  • Page 5: Rear Connection Panel

    All manuals and user guides at all-guides.com 21 pin connector Pin No Signal Signal level Audio output B Standard level : 0.5V rms (right) Output impedence : Less than 1kohm* Audio output B Standard level : 0.5V rms (right) Output impedence : More than 10kohm* Audio output A Standard level : 0.5V rms (left)

  • Page 6: Self Diagnostic Software

    All manuals and user guides at all-guides.com FE-2 SELF DIAGNOSTIC SOFTWARE The identification of errors within the FE-2 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.

  • Page 7: General

    All manuals and user guides at all-guides.com SECTION 1 GENERAL...
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  • Page 11 All manuals and user guides at all-guides.com...

  • Page 12: Disassembly

    All manuals and user guides at all-guides.com SECTION 2 DISASSEMBLY KV-21LT1 2-1. Rear Cover Removal 2-2. A Board PWB Removal [ Step 1 ] <= => Remove screw. => <= Release the mains power cable from its securing posts. Remove the rear cover fixing screws indicated. Pull the rear cover away from the front beznet until clear of chassis.

  • Page 13: Picture Tube Removal

    All manuals and user guides at all-guides.com 2-6. Picture Tube Removal WARNING: BEFORE REMOVING THE ANODE CAP High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to remove the anode cap.

  • Page 14: Kv-21Ft2

    All manuals and user guides at all-guides.com KV-21FT2 2-7. Rear Cover Removal 2-8. Chassis Removal and Refitting => => Remove the rear cover fixing screws indicated. Pull the rear To remove the chassis release the clips indicated at opposite cover straight back until clear of chassis. sides of the main bracket and slide the chassis away from the beznet.

  • Page 15: Picture Tube Removal

    All manuals and user guides at all-guides.com 2-11. Picture Tube Removal WARNING: BEFORE REMOVING THE ANODE CAP High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT before attempting to remove the anode cap.

  • Page 16: Set-Up Adjustments

    All manuals and user guides at all-guides.com SECTION 3 SET-UP ADJUSTMENTS • Carry out the adjustments in the following order : When complete readjustment is necessary or a new picture 3-1. Beam Landing. tube is installed, carry out the following adjustments. 3-2.

  • Page 17: Horizontal And Vertical Static Convergence

    All manuals and user guides at all-guides.com If the V.STAT magnet is moved in the direction of the (a) 3-2. Convergence and (b) arrows, the Red, Green and Blue points move as indicated below. Preparation: · Before starting this adjustment, adjust the focus, horizontal size and vertical size.

  • Page 18: Geometry Adjustment

    All manuals and user guides at all-guides.com Geometry Adjustment. YCH Adjustment Preparation: YCH VR Before starting this adjustment, adjust the horizontal and vertical Deflection Yoke static convergence. Remove the deflection yoke spacer. Tilt the deflection yoke as indicated in the figure below and TLV Adjustment optimise the geometry.

  • Page 19: Focus Adjustment

    All manuals and user guides at all-guides.com Layout of each control 3-4. Screen (G2), White Balance [Adjustment in the service mode using the remote commander] G2 adjustment Input a dot signal from the pattern generator. Set the Picture, Brightness and Colour to minimum. Apply 175V DC from an external power supply to the R, G V.STAT and B cathodes of the CRT.

  • Page 20: Circuit Adjustments

    All manuals and user guides at all-guides.com SECTION 4 CIRCUIT ADJUSTMENTS 4-1. Electrical Adjustments Service adjustments to this model can be performed using the supplied s f f Remote Commander RM-887. How to enter into the Service Mode Turn on the main power switch and enter into the stand-by mode. Press the following sequence of buttons on the Remote Commander.

  • Page 21: Sub Brightness Adjustment

    All manuals and user guides at all-guides.com Sub Brightness Adjustment Input a Monoscope pattern. Press ‘TEST’ ‘TEST’ 13 on the Remote Commander. Adjust the ‘Sub-Brightness’ data so that there is barely a difference between the 0 IRE and 10 IRE signal levels. Sub Contrast Adjustment Input a video signal that contains a small 100% white area on a black background.

  • Page 22: Test Mode

    All manuals and user guides at all-guides.com 4-2. TEST MODE 2: V SIZE Is available by pressing the ‘TEST’ button twice, OSD ‘TT’ appears. The functions described below are available by selecting the two numbers. To release the ‘Test mode 2’, press 00, 10, 20 ... twice or V LIN switch the TV set into Stand-by mode.
  • Page 23 All manuals and user guides at all-guides.com Memo...

  • Page 24: Circuit Board Location

    All manuals and user guides at all-guides.com 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 S1 Board : ADJUSTMENT RESISTOR...
  • Page 25 All manuals and user guides at all-guides.com...
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  • Page 27 All manuals and user guides at all-guides.com...
  • Page 28 All manuals and user guides at all-guides.com...

  • Page 29: Semiconductors

    All manuals and user guides at all-guides.com 5-4. SEMICONDUCTORS LM393DT DTA144ESA 2SK2251-01-F19 TDA2822M DTA144ESA-TP TEA2124 DTC114EKA DTC114EKA-T146 DTC143TKA-T146 DTC144EKA-T-146R 2SA1037K-T-146-R R2SA1162-G 2SA1037K-T-146-QR 2SD601A-QTX ( TOP VIEW ) 2SC1623-L5-L6 2SC2412K-QR 2SC2412K-T-146-R SE-135N SE135N-LF12 AK04-V1 ERD28-06S AU-01Z-V1 ERC06-15SL BYD33G FMN-G12S BYD33G- GP08DPKG23 AMMO RG1CLF-B1 DINL20-U-TA2...
  • Page 30 All manuals and user guides at all-guides.com ERA81-004TP1 MTZJ-T-77-15B ERA83-006 MTZJ-T-77-33A MTZJ-3.6A MTZJ-33C MTZJ-T-77-2.2A MTZJ-7.5B HZS9.INBZ RD3.9ES-B2 MTZJ-T-77-3.6B RD5.6ESB2 MTZJ-T-77-5.6B RD6.8ES-B2 MTZJ-T-77-5.6C RD7.5ESB2 MTZJ-T-77-6.8A RD9.1ES-B3 MTZJ-T-77-6.8C RD10ESB2 MTZJ-T-77-8.2B RD15ESB2 MTZJ-T-77-7.5B 1SS119-25TD MTZJ-T-77-9.1A 1SS133T-77 MTZJ-T-77-9.1C MTZJ-T-77-10 CATHODE ANODE SLA-570KT3F CATHODE ANODE 1SS355TE-17 RD12SB2 UDZS-TE-17-4.7B...

  • Page 31: Ic Block Diagrams

    All manuals and user guides at all-guides.com 5-5 IC BLOCK DIAGRAMS A BOARD IC604 BA41W12ST A BOARD IC401/IC531 LM393TD Vref A BOARD IC601 MCZ3001D Remote DVLD Internal Driver Sel=34v ref 5v Reg. 10v 15v/8v Level Shift Vsense Control Logic Latch Centre Timer A BOARD IC1201 TDA7494...

  • Page 32: Exploded Views

    All manuals and user guides at all-guides.com SECTION 6 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.
  • Page 33 All manuals and user guides at all-guides.com 6-2. KV-21LT1 PICTURE TUBE REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK X-4200-621-1 BEZNET ASSY 52-59 4-369-318-21 SPRING, TENSION 4-047-464-01 CATCHER, PUSH £ 1-419-187-11 COIL, DEGAUSSING 4-205-364-01 DOOR *4-204-900-01 BAND, DGC 4-205-365-01 SHAFT DOOR *4-202-554-01 HOLDER, HV CABLE 4-205-376-01 MULTI BUTTON...
  • Page 34 All manuals and user guides at all-guides.com SECTION 6 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.
  • Page 35 All manuals and user guides at all-guides.com 6-4. KV-21FT2 PICTURE TUBE 54 55 REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK X-4200-622-1 BEZNET ASSY (KV-21LT1) 52-56 4-203-390-11 CUSHION, DGC 4-205-398-01 SPRING, DOOR 4-204-900-01 BAND, DGC 4-205-396-11 BUTTON, POWER (BARE) 4-202-554 01 HOLDER, HV CABLE 4-205-392-11 WINDOW ORNAMENTAL (BARE) £...

  • Page 36: Electrical Parts List

    All manuals and user guides at all-guides.com SECTION 7 ELECTRICAL PARTS LIST PARTS LISTING TABLE OF CONTENTS Page A BOARD COMMON Parts List : Parts common to all models listed in this manual .......... 47 A BOARD VARIANT Parts List : Parts that belong only to the model specified Model KV-21LT1...
  • Page 37 All manuals and user guides at all-guides.com The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C044 1-164-346-11 CERAMIC CHIP 1UF *A-1632-893-A A Board, Complete (KV-21LT1B) C045...
  • Page 38 All manuals and user guides at all-guides.com The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C538 1-165-319-11 CERAMIC CHIP 0.1UF C637 1-126-967-11 ELECT 47UF...
  • Page 39 All manuals and user guides at all-guides.com The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK D014 8-719-422-12 DIODE UDZ-TE-17-3.9B D601 8-719-510-53 DIODE D4SB60L-F D016 8-719-109-89 DIODE MTZJ-T-77-5.6B...
  • Page 40 All manuals and user guides at all-guides.com The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK IC531 8-759-665-11 IC LM393DT Q401 8-729-026-49 TRANSISTOR 2SA1037AK-T146-QR IC601 8-759-671-30 IC MCZ3001D...
  • Page 41 All manuals and user guides at all-guides.com The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R025 1-216-025-91 RES-CHIP 100 5% 1/10W R096 1-216-025-91 RES-CHIP...
  • Page 42 All manuals and user guides at all-guides.com The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R504 1-249-385-11 CARBON 2.2 5% 1/4W R562 1-216-117-00 RES-CHIP...
  • Page 43 All manuals and user guides at all-guides.com The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R652 1-216-081-00 RES-CHIP 22K 5% 1/10W A Board Variant Parts KV-21LT1B/21LT1E R653...
  • Page 44 All manuals and user guides at all-guides.com The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C713 1-101-004-00 CERAMIC 0.01UF < IC > C714 1-104-665-11 ELECT 100UF...

  • Page 45: Accessories And Packaging Materials

    All manuals and user guides at all-guides.com The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R720 1-249-421-11 CARBON 2.2K 5% 1/4W R721 1-249-405-11 CARBON...
  • Page 46 • 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.

This manual is also suitable for:

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