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Sony KV-21LS30B Service Manual
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Sony KV-21LS30B Service Manual

Fd trinitron color tv
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SERVICE MANUAL

MODEL
KV-21LS30B
KV-21LS30E
COMMANDER
DEST
CHASSIS NO.
RM-887
FR
SCC-Q54E-A
RM-887
ESP
SCC-Q53E-A
MODEL
KV-21LS30K
KV-21LS30U
1
FE-2
CHASSIS
COMMANDER
DEST
CHASSIS NO.
RM-887
OIRT
SCC-Q51F-A
RM-887
UK
SCC-Q52E-A
RM-889

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Summary of Contents for Sony KV-21LS30B

  • Page 1: Service Manual

    SERVICE MANUAL FE-2 CHASSIS MODEL MODEL COMMANDER DEST CHASSIS NO. COMMANDER DEST CHASSIS NO. KV-21LS30B KV-21LS30K RM-887 SCC-Q54E-A RM-887 OIRT SCC-Q51F-A KV-21LS30E KV-21LS30U RM-887 SCC-Q53E-A RM-887 SCC-Q52E-A RM-889...

  • Page 2: Table Of Contents

    EXPLOSÈES ET LES LISTES DE PIECES SONT D’UNE IMPOR- TANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, NE LES REMPLACER QUE PAR DES COMPSANTS SONY DONT LE NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL OU DANS DES SUPPLÈMENTS PUBLIÈS PAR SONY.
  • Page 3 l l a . s l . s l . s l . s l e i l i n i...
  • Page 4 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: Connectors

    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) Output impedence : Less than 1kohm*...

  • Page 6: Self Diagnostic Software

    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

    SECTION 1 GENERAL...

  • Page 12: Disassembly

    SECTION 2 DISASSEMBLY 2-1. Rear Cover Removal 2-2. Speaker Connector Disconnection <= => <= => => Release the mains power cable from its securing posts. Before completely removing the rear cover disconnect the Remove the rear cover fixing screws indicated. Pull the rear speaker connectors which are located on the inside base of cover away from the front beznet.

  • Page 13: A Board Pwb Removal

    2-5. A Board PWB Removal [ Step 1 ] 2-6. A Board PWB Removal [ Step 2 ] Remove screw. Release the 2 securing clips located at either side of the chassis and slide the PWB clear of the bracket. Remove FBT support bracket.

  • Page 14: Picture Tube Removal

    2-9. 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. Short between anode and CRT coated earth ground strap.

  • Page 15: Set-Up Adjustments

    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. Convergence. • Unless there are specific instructions to the contrary, carry 3-3.

  • Page 16: Convergence

    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 17 Geometry Adjustment. YCH Adjustment Preparation: YCH VR Before starting this adjustment, adjust the horizontal and Deflection Yoke vertical static convergence. Remove the deflection yoke spacer. Tilt the deflection yoke as indicated in the figure below and TLV Adjustment optimise the geometry. Tilting the DY Up and Down will balance the upper and lower pin adjustment.

  • Page 18: Focus Adjustment

    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 19: Circuit Adjustments

    SECTION 4 CIRCUIT ADJUSTMENTS 4-1. Electrical Adjustments Service adjustments to this model can be performed using the suppliedemote 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 20 Sub Colour Adjustment Deflection System Adjustment Enter into the ‘Geometry’ service menu. Receive a PAL colour bar signal. Select and adjust each item in order to obtain the optimum image. Connect an oscilloscope to Pin 5 of CN003 [A Board]. Enter into the ‘Service’...

  • Page 21: Test Mode

    4-2. TEST MODE 1: Test Mode 1 is available by pressing the ‘TEST’ button once, OSD ‘T’ appears. The functions described below are available by selecting the indicated keys. The ‘T’ is released automatically after each < > command is executed. y t i s i l i n i...
  • Page 22 Memo...

  • Page 23: Block Diagrams

    5-1. BLOCK DIAGRAMS (1) IC001 CN1201 MICRO, VIDEO PROCESSOR, ROM, AUDIO, VIDEO SWITCH R AUDIO CN001 TO SPEAKERS +3.3V XTAL IN L AUDIO IC604 STBY PH601 DUAL DC REGULATOR S601 ISOLATOR XTAL OUT IC002 J1200 POWER CN601 REMOTE CONTROL IC201 RECEIVER LOWB AUDIO AMP...

  • Page 24: Circuit Board Location

    5-1. BLOCK DIAGRAMS (2) 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 COIL...
  • Page 25 C board Waveforms 20us/div 20us/div 10us/div 1.77 Vp-p (H) 1.88 Vp-p (H) 1.88 Vp-p (H) 20us/div 20us/div 20us/div Semiconductor Voltage Table 74 Vp-p (H) 74 Vp-p (H) 74 Vp-p (H) IC Voltage Table 20us/div 1.76 Vp-p (H) R, G, B OUT, VELOCITY MODULATION, ROTATION COIL...
  • Page 26 IC Voltage Table Semiconductor Voltage Table Semiconductor Location Table NOTE: Portions of the circuit marked as shown are high voltage areas. Use care to prevent electric shock during inspection or repair. PRINTED WIRING BOARD...
  • Page 27 KV-21LS30 [9-927-402-01] [ POWER SUPPLY, DEFLECTION, AUDIO AMPLIFIER (Page 1/2) ]...
  • Page 28 [ POWER SUPPLY, DEFLECTION, AUDIO AMPLIFIER (Page 2/2) ]...

  • Page 29: Semiconductors

    5-4. SEMICONDUCTORS LM393DT DTA144ESA 2SK2251-01-F19 TDA2822M DTA144ESA-TP TEA2124 DTC114EKA-T146 DTC143TKA-T146 DTC144EKA-T-146R 2SA1037K-T-146-R R2SA1162-G 2SA1037K-T-146-QR 2SD601A-QTX 2SC1623-L5-L6 2SC2412K-QR ( TOP VIEW ) 2SC2412K-T-146-R SE-135N AK04-V1 ERD28-06S SE135N-LF4 AU-01Z-V1 ERC06-15SL BYD33G FMN-G12S BYD33G-AMMO GP08DPKG23 DINL20-U-TA2 RGP10GPKG23 DINL40-U-TR2 RG1CLF-B1 ERB44-06TP1 RU-3AM EGP20G RU3YX-LF-C4 IRF614-LF EG-1Z-V1 RU3YX-V1...
  • Page 30 ERA81-004TP1 MTZJ-T-77-10A MSP3410D ERA83-006 MTZJ-T-77-10B MTZJ-3.6A MTZJ-T-77-15B MTZJ-T-77-2.2A MTZJ-T-77-33A HZS9.INBZ MTZJ-33C MTZJ-T-77-3.6B MTZJ-7.5B MTZJ-T-77-4.7B P6KE200ASY MTZJ-T-77-5.6B RD3.9ES-B2 MTZJ-T-77-6.8B RD7.5ESB2 MTZJ-T-77-8.2B RD9.1ES-B3 MTZJ-T-77-7.5B RD10ESB2 MTZJ-T-77-9.1B RD15ES-T1B2 MTZJ-T-77-9.1B 1SS119-25TD MTZJ-T-77-10 1SS133T-77 CATHODE ANODE SLA-570KT3F CATHODE ANODE 1SS355TE-17 RD12SB2 UDZS-TE-17-4.7B UDZS-TE-17-5.6B UDZS-TE-17-6.8B UDZS-TE-17-9.1B UDZ-TE-17-22B ANODE CATHODE...

  • Page 31: Ic Block Diagrams

    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 TDA7495 Sgn Gnd MUTE/STBY PROTECTION Pwr Gnd...

  • Page 32: Exploded Views

    7-685-663-71 SCREW +BVTP 4x16 TYPE 2 IT-3 8-598-529-00 FRONTEND BTF-EU611 (KV-21LS30U) *A-1678-198-A SPEAKER BOX ASSY LEFT 12,15,17,18 *A-1632-927-A A BOARD, COMPLETE (KV-21LS30B) *4-205-897-01 BOX, SPEAKER (L) *A-1632-920-A A BOARD, COMPLETE (KV-21LS30E/21LS30K) *4-205-899-01 BAFFLE, SPEAKER (L) *A-1632-928-A A BOARD, COMPLETE (KV-21LS30U)

  • Page 33: Picture Tube

    6-2. PICTURE TUBE REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK X-4200-702-1 BEZNET ASSY 52-59 *4-203-022-01 HOLDER, HV 4-047-464-01 CATCHER, PUSH *A-1638-149-A CVM BOARD, COMPLETE 4-205-895-01 DOOR 4-369-318-21 SPRING, TENSION 4-205-365-01 SHAFT DOOR £ 1-419-772-11 COIL, DEGAUSSING 4-205-376-01 MULTI BUTTON *4-203-390-11 CUSHION, DGC 4-205-550-01 COVER MULTI BUTTON £...

  • Page 34: Electrical Parts List

    A BOARD COMMON Parts List : Parts common to all models listed in this manual ..... 43 A BOARD VARIANT Parts List : Parts that belong only to the model specifi ed Model KV-21LS30B ..................... 50 KV-21LS30E ..................... 50 KV-21LS30K .....................
  • Page 35 PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK C103 1-126-965-11 ELECT 22UF 20.00% 50V *A-1632-927-A A Board, Complete (KV-21LS30B) C105 1-162-970-91 CERAMIC CHIP 0.01UF 10.00% 25V *A-1632-920-A A Board, Complete (KV-21LS30E KV-21LS30K) C106 1-126-933-11 ELECT 100UF 20.00% 16V *A-1632-928-A A Board, Complete (KV-21LS30U) C111 8-719-069-55 DIODE UDZS-TE17-5.6B...
  • Page 36 REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK C427 1-163-009-11 CERAMIC CHIP 0.001UF 10.00% 50V C601 £ 1-136-516-12 FILM 0.1UF 20.00% 300V C428 1-163-009-11 CERAMIC CHIP 0.001UF 10.00% 50V C602 £ 1-136-516-12 FILM 0.1UF 20.00% 300V C429 1-163-009-11 CERAMIC CHIP 0.001UF 10.00% 50V C603 £...
  • Page 37 B1 A REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK C1210 1-126-960-11 ELECT 20.00% 50V D036 8-719-069-55 DIODE UDZS-TE17-5.6B C1211 1-163-033-91 CERAMIC CHIP 0.022UF D051 8-719-081-98 DIODE MM3Z6V8T1 C1213 1-216-295-91 SHORT D101 8-719-977-81 DIODE MTS DTZ33B C1215 1-126-952-11 ELECT 1000UF 20.00% 35V D103 8-719-081-98 DIODE MM3Z6V8T1...
  • Page 38 A F4 A REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK D534 8-719-908-03 DIODE GP08DPKG23 < FILTER > D535 8-719-908-03 DIODE GP08D D536 8-719-945-80 DIODE ERC06-15SL FL201 1-239-803-11 FILTER, EMI D537 8-719-070-62 DIODE PDZ9.1B-115 D538 8-719-908-03 DIODE GP08D < IC > D539 8-719-928-08 DIODE ERD28-06S IC001...
  • Page 39 REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK L502 1-412-531-31 INDUCTOR 33UH < RESISTOR > L503 1-412-521-31 INDUCTOR 4.7UH L504 1-535-143-61 LEAD, JUMPER (5.0MM) 1-216-296-11 SHORT L505 1-412-533-21 INDUCTOR 47UH 1-216-295-11 SHORT L507 1-412-533-21 INDUCTOR 47UH 1-216-295-11 SHORT JR10 1-216-295-11 SHORT L532 1-412-553-11 INDUCTOR 3.3MH...
  • Page 40 REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK R027 1-216-025-11 RES-CHIP 1/10W R202 1-216-073-00 RES-CHIP 1/10W R028 1-216-025-11 RES-CHIP 1/10W R211 1-216-081-00 RES-CHIP 1/10W R029 1-216-061-00 RES-CHIP 3.3K 5% 1/10W R212 1-216-069-00 RES-CHIP 6.8K 5% 1/10W R030 1-216-821-11 RES-CHIP 1/16W R213 1-216-081-00 RES-CHIP 1/10W...
  • Page 41 REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK R429 1-216-089-11 RES-CHIP 1/10W R530 1-216-085-00 RES-CHIP 1/10W R430 1-216-073-00 RES-CHIP 1/10W R531 1-216-057-00 RES-CHIP 2.2K 5% 1/10W R431 1-216-073-00 RES-CHIP 1/10W R532 1-216-085-00 RES-CHIP 1/10W R433 1-216-073-00 RES-CHIP 1/10W R533 1-216-081-00 RES-CHIP 1/10W R434 1-216-073-00 RES-CHIP...
  • Page 42 1-247-807-31 CARBON 1/4W X001 1-578-774-71 VIBRATOR, CRYSTAL R1200 1-260-093-11 CARBON 1/2W X201 1-760-628-11 VIBRATOR, CRYSTAL R1201 1-260-093-11 CARBON 1/2W A Board Variant Parts KV-21LS30B/21LS30E R1207 1-216-077-91 RES-CHIP 1/10W KV-21LS30K/21LS30U R1208 1-216-067-00 RES-CHIP 5.6K 5% 1/10W TU101 8-598-535-10 FRONTEND BTF-EF411 (KV-21LS30B) R1209...
  • Page 43 M1 C REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK C714 1-104-665-11 ELECT 100UF 20.00% 25V D717 8-719-991-33 DIODE 1SS133T-77 C715 1-101-880-00 CERAMIC 47PF 5.00% 50V D718 8-719-991-33 DIODE 1SS133T-77 C716 1-101-880-00 CERAMIC 47PF 5.00% 50V D719 8-719-991-33 DIODE 1SS133T-77 C717 1-102-114-00 CERAMIC 470PF...
  • Page 44 REF.NO. PART.NO DESCRIPTION REMARK REF.NO. PART.NO DESCRIPTION REMARK Q717 8-729-200-17 TRANSISTOR BF421-AMMO R1712 1-249-420-11 CARBON 1.8K 5% 1/4W Q718 8-729-119-78 TRANSISTOR 2SC1740S-RT R1713 1-247-807-31 CARBON 1/4W Q1701 8-729-119-78 TRANSISTOR 2SC1740S-RT R1714 1-260-089-81 CARBON 1/2W Q1704 8-729-119-78 TRANSISTOR 2SC1740S-RT R1719 1-249-418-11 CARBON 1.2K 5% 1/4W Q1705...
  • Page 45 1-453-314-31 TRANSFORMER ASSY, FLYBACK (HR1SP1) 1-452-728-61 COIL, NA ROTATION (RT-154) 1-529-125-11 SPEAKER (13X7CM) £ 1-571-433-21 SWITCH, PUSH (AC POWER) £ 1-765-286-11 CORD, POWER (KV-21LS30B/21LS30E/21LS30K) £ 1-776-204-12 POWER CORD, FILTER (KV-21LS30U) £ 8-738-809-05 PICTURE TUBE (A51LPT70X) £ 8-451-505-41 DEFLECTION YOKE (Y21RSA-1) £...
  • Page 46 With the optional IR Add-on kit, the following features can be added: Remote Commander emulation 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:

Kv-21ls30eKv-21ls30uKv-21ls30k

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