Sony TRINITRON KV-27V42 Service Manual
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Sony TRINITRON KV-27V42 Service Manual

Trinitron color tv
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SERVICE MANUAL

MODEL
KV-27V42
KV-27V66
KV-27V66
KV-29SL42K
KV-29SL42T
KV-29VL42T
KV-29XL42T
MICROFILM
COMMANDER
RM-Y165
RM-Y167
RM-Y167
RM-Y149A
RM-Y165
RM-Y165
RM-Y165
KV-29SL42K
TRINITRON
BA-4D
DEST
CHASSIS NO.
US
SCC-S27M-A
US
SCC-S27J-A
CND
SCC-S28H-A
KOREA
SCC-S29A-A
TAIWAN
SCC-S30A-A
TAIWAN
SCC-S30B-A
TAIWAN
SCC-S30C-A
RM-Y149A
®
COLOR TV
CHASSIS

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Summary of Contents for Sony TRINITRON KV-27V42

  • Page 1: Service Manual

    BA-4D SERVICE MANUAL CHASSIS MODEL COMMANDER DEST CHASSIS NO. KV-27V42 RM-Y165 SCC-S27M-A KV-27V66 RM-Y167 SCC-S27J-A KV-27V66 RM-Y167 SCC-S28H-A KV-29SL42K RM-Y149A KOREA SCC-S29A-A KV-29SL42T RM-Y165 TAIWAN SCC-S30A-A KV-29VL42T RM-Y165 TAIWAN SCC-S30B-A KV-29XL42T RM-Y165 TAIWAN SCC-S30C-A KV-29SL42K RM-Y149A ® TRINITRON COLOR TV...

  • Page 2: Specifications

    • The ( ) SRS (SOUND RETRIEVAL SYSTEM) is Optional Accessories manufactured by Sony Corporation under license Dipole antenna from SRS Labs, Inc. It is covered by U.S. Patent No. Connecting cables VMC-810S/820S, VMC-720M, 4,748,669. Other U.S. and foreign patents pending.

  • Page 3: Table Of Contents

    Warnings and Cautions ................................4 Self-Diagnostic Function ................................4 Safety Check Out Instructions ..............................7 GENERAL ................................DISASSEMBLY 2-1. Rear Cover Removal (KV-27V42/66/29VL42T) ......................11 2-2. Rear Cover Removal (KV-29SL42K/42T/29XL42T) ......................11 2-3. Board Removal ................................12 2-4. Control Switch Removal ..............................12 2-5.

  • Page 4: Warnings And Cautions

    PIECES SONT D'UNEIMPORTANCE CRITIQUE POUR LA SECURITE DU THESE COMPONENTS WITH SONY PARTS WHOSE PART FONCTIONNEMENT. NE LES REMPLACER QUE PAR DES COMPOSANTS SONY NUMBERS APPEAR AS SHOWN IN THIS MANUAL DONT LE NUMERO DE PIECE EST INDIQUE DANS LE PRESENT MANUEL OU OR IN SUPPLEMENTS PUBLISHED BY SONY.
  • Page 5 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Display of Standby/Timer LED Flash Count 2 times 4 times 5 times LED ON 0.3 sec. LED OFF LED OFF 0.3 sec. 3 sec. STANDBY/TIMER LED Diagnostic Item Flash Count* +B overcurrent 2 times Vertical deflection stopped 4 times...
  • Page 6 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Handling of Self-diagnostic Screen Display Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you have completed the repairs, clear the result display to “0”. Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.

  • Page 7: Safety Check Out Instructions

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T SAFETY CHECK-OUT After correcting the original service problem, perform the Leakage Test following safety checks before releasing the set to the The AC leakage from any exposed metal part to earth customer: ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 1.

  • Page 8: General

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T SECTION 1 GENERAL The following are partial abstracts from the Operating Instruction Manual. The page numbers shown reflect those of the Operating Instruction Manual. Connecting Your TV User Guide This section covers basic connections in addition to any optional Connecting Additional Equipment equipment you may be connecting.
  • Page 9 Using A/V cables, connect AUDIO and VIDEO OUT on your camcorder Satellite to AUDIO and VIDEO IN on your TV. antenna (Front A/V Panel KV-27V42, 27V66 only) Cable Satellite receiver A/V output Connect the cable from your satellite antenna to SATELLITE IN on the satellite receiver.

  • Page 10: Troubleshooting

    Adjust COLOR in the VIDEO menu (page 19). If, after reading these operating instructions, you have additional questions related to the use of your Sony television, please call our Direct Response Center at 1-800-222-SONY (7669) (U.S. residents Only snow Check the CABLE setting in the CHANNEL SET UP only) or (416) 499-SONY (7669) (Canadian residents only).

  • Page 11: Disassembly

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T SECTION 2 DISASSEMBLY 2-1. REAR COVER REMOVAL (KV-27V42/66/29VL42T) Rear Cover Seven screws (+BVTP 4x16 TYPE2 N-S) Seven screws (+BVTP 3x10 TYPE 2 IT3) 2-2. REAR COVER REMOVAL (KV-29SL42K/42T/29XL42T) Rear Cover Seven screws (+BVTP 4x16 TYPE2 N-S) Two screws (+BVTP 3x10 TYPE 2 IT3)

  • Page 12: Control Switch Removal

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T 2-3. CHASSIS ASSEMBLY REMOVAL CV (C) board K board P board E board HV board A board 2-4. CONTROL SWITCH REMOVAL (KV-27V42/66/29VL42T) Control Switch Four Claws 2-5. SERVICE POSITION HV board P board K board CV (C) board A board E board —...

  • Page 13: Picture Tube Removal

    2-6. PICTURE TUBE REMOVAL Two Screws WARNING: BEFORE REMOVING THE ANODE CAP Two speaker boxes (KV-27V42/66/29VL42T ONLY) High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge E board Degaussing coil CRT before attempting to remove the A board anode cap.

  • Page 14: Set-Up Adjustments

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T SECTION 3 SET-UP ADJUSTMENTS The following adjustments should be made when Perform the adjustments in order as follows: 1. Beam Landing a complete realignment is required or when a new 2. Convergence picture tube is installed. 3. Focus These adjustments should be performed with rated 4.

  • Page 15: Convergence

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T 3-2. CONVERGENCE If the blue dot does not converge with the red and green dots, perform the following: Before starting convergence adjustments: 1. Move BMC magnet (a) to correct insufficient H. Static 1. Perform FOCUS, V.LIN AND V.SIZE adjustments.

  • Page 16: Focus

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T 3-5. METHOD OF SETTING THE SERVICE Screen-Corner Convergence ADJUSTMENT MODE 1. Affix a permalloy assembly corresponding to the misconverged areas. Service Mode Procedure 1. Standby mode (power off). Channel 5 Display Sound volume Power ON a-d: screen-corner on the Remote Commander (press each button within a misconvergence second).

  • Page 17: Safety Related Adjustments

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T SECTION 4 SAFETY RELATED ADJUSTMENTS 4-1. R584 CONFIRMATION METHOD Hold-down Readjustment (HV HOLD-DOWN CONFIRMATION) If the setting indicated in step 2 of Hold-down Operation AND READJUSTMENTS Confirmation cannot be met, readjustment should be performed The following adjustments should always be performed when...
  • Page 18 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Digital Multimeter – TP600 C574 R584 T504 ABL11 1SS119 – – – Ammeter 3mA DC Range Power Digital Supply Multimeter Figure 1 — 18 —...

  • Page 19: Circuit Adjustments

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T SECTION 5 CIRCUIT ADJUSTMENTS Electrical Adjustment by Remote Commander Use the Remote Commander (RM-Y165, RM-Y167 or RM-Y149A) to perform the circuit adjustments in this section. NOTE: Test Equipment Required: • Pattern generator • Frequency counter • Digital multimeter • Audio oscillator 5-1.

  • Page 20: Adjustment Items

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Adjustment Items Service Data Service Data Initial Value Average Data Initial Value Average Data Item Name Name Range Item Name Name Range HSIZ A_HSIZE 0-63 62 SBAS 0-15 63 STRE 0-15 HPOS A_HPOS 0-63 VBOW A_AFCB 0-15 64 SBAL...

  • Page 21: A Board Adjustments

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Feature ID Map 6. Connect an oscilloscope probe to CN301 pin (R OUT) and ground. MODEL DEST. ID-0 ID-1 ID-2 ID-3 ID-4 ID-5 ID-6 ID-7 7. Select RDRV with KV-27V42 25 151 175 234 11 8. Adjust with for 1.75 ± 0.05 Vp-p...

  • Page 22: Service Adjustment Mode Memory

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Sub Hue, Sub Color Adjustment (SHUE, SCOL) H. Center Adjustment (HPOS) 1. Input a color-bar signal. Perform this adjustment after checking H. Frequency. 2. Set to Service Adjustment Mode. 1. Input a crosshatch signal. 3. Select the DCOL item and set the value to 0.

  • Page 23: Diagrams

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM 6-2. CIRCUIT BOARD LOCATIONS • When replacing parts shown in the table below, be sure to perform the related adjustments. Part Replaced ( Adjustment ( D Y, C511, C573, C574, C575, HV HOLD-DOWN...
  • Page 24 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T A BOARD (* ) MARK VARIANT LIST A BOARD LOCATION LIST KV-29SL42T/ DIODE D306 I-11 D605 A-12 IC301 I-10 Q285 Q361 REF NO. LOC. KV-24SL42K KV-29VL42T KV-27V42 KV-27V66 KV-29SL42T/ XL42T REF NO. LOC. KV-24SL42K KV-29VL42T KV-27V42 KV-27V66 D001 D388...
  • Page 25 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T A BOARD SCHEMATIC DIAGRAM A BOARD WAVEFORMS 1.0 Vp-p (H) 2.0 Vp-p (H) 4.7 Vp-p (H) 3.6 Vp-p (8MHz) 1.0 Vp-p (H) 0.7 Vp-p (H) 0.9 Vp-p (H) 4.0 Vp-p (V) 2.0 Vp-p (H) 0.9 Vp-p (H) 1.7 Vp-p (H) 1.4 Vp-p (V)
  • Page 26 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T [2ND TUNER, AUDIO AMP] [CONTROL AUDIO AMP] [P in P] (KV-27V66 ONLY) (KV-27V42/27V66/29VL42T ONLY) (KV-27V66 ONLY) COMPONENT SIDE CONDUCTOR SIDE HV BOARD SCHEMATIC DIAGRAM P BOARD TRANSISTOR P BOARD IC VOLTAGE LIST VOLTAGE LIST IC3301 P BOARD WAVEFORMS volt...

  • Page 27: E Board

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T [CRT DRIVE, R.G.B. DRIVE] [ENERGY START] (KV-29XL42T/29SL42T/29SL42K ONLY) C BOARD IC VOLTAGE LIST IC1751 volt 198.1 137.3 138.6 140.8 All voltages are in V C BOARD WAVEFORMS E BOARD TRANSISTOR VOLTAGE LIST E BOARD (*) MARK VARIANT LIST REF NO.
  • Page 28 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T [CRT DRIVE, R.G.B. DRIVE, VELOCITY MODULATION] (KV-27V42/27V66/29VL42T ONLY) CV BOARD WAVEFORMS 179.7 Vp-p (H) 156.3 Vp-p (H) 167.2 Vp-p (H) CV BOARD SCHEMATIC DIAGRAM CV BOARD TRANSISTOR CV BOARD IC VOLTAGE LIST VOLTAGE LIST IC1701 Q943 volt Q944 Q945 Q946 133.2...

  • Page 29: Semiconductors

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T 6-4. SEMICONDUCTORS 2SD2144S 2SA1162-G 2SA1175-HFE 2SC3209LK 2SC4159-E 2SD601A-Q 2SC2785-HFE 2SD1312-K 2SA933AS-QT LETTER SIDE RD9.1EW MA111-TX 2SK2845-LB102 2SC5426-01 ANODE CATHODE RU4AM-T3 D4SB60L-F D5LC20U CATHODE MARKING SIDE VIEW ANODE ANODE CATHODE D1N20R D1NL20-U U05G MTZJ-33 EGP20G MTZJ-T-77-2.2A MTZJ-30D EL1Z ERA22-08 MTZJ-5.1C...

  • Page 30: Exploded View

    KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T SECTION 7 EXPLODED VIEW • The component parts of an assembly • Items marked “ * ” are not stocked since • Items with no part number and no they are seldom required for routine are indicated by the reference description are not stocked because they numbers in the remarks column.

  • Page 31: Chassis (Kv-27V42/V66/29Vl42T)

    4-063-018-12 COVER,REAR (KV-29VL42T/27V42) 1-505-893-11 SPEAKER (8CM) (KV-27V66 ONLY) 1-473-549-21 SWITCH BLOCK, CONTROL 1-505-404-11 SPEAKER (8CM) (KV-29VL42T/27V42) 4-052-906-01 DOOR,CONTROL * A-1298-901-A A COMPLETE PC BOARD (KV-27V42 ONLY) 4-031-698-01 SHEET,ADHESIVE 8-733-873-05 CRT, 29NX 4-053-005-01 SPACER,DY * A-1298-841-A A COMPLETE PC BOARD (KV-27V66 ONLY)

  • Page 32: Electrical Parts List

    0.0022µF C065 1-163-009-11 CERAMIC 0.001µF C070 1-163-259-91 CERAMIC 220PF C080 1-164-005-11 CERAMIC 0.47µF * A-1298-901-A A BOARD, COMPLETE (KV-27V42) C081 1-164-005-11 CERAMIC 0.47µF * A-1298-841-A A BOARD, COMPLETE (KV-27V66) * A-1298-939-A A BOARD, COMPLETE (KV-29SL42K) C091 1-163-231-11 CERAMIC 15PF * A-1298-940-A...
  • Page 33 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 34 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 35 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 36 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 37 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 38 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 39 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 40 KV-13M42/13M52/13M53/14MB42/14MB42C Note: Note: The components identified by in this manual have been The components identified by shading carefully factory-selected for each set in order to satisfy and mark are critical for safety. regulations regarding x-ray radiation. Should replacement be Replace only with part number specified. required, replace only with the value originally used.
  • Page 41 1-249-417-11 CARBON 1/4W TU101 8-598-477-00 FSS TUNER BTF-WG411 R658 1-249-421-11 CARBON 2.2K 1/4W (KV-29SL42T/XL42T/29VL42T) R659 1-216-362-11 METAL 0.27 TU101 8-598-431-00 TUNER,FSS BTF-WA411 (KV-27V42/27V66) R660 1-249-429-11 CARBON 1/4W R662 1-249-417-11 CARBON 1/4W CRYSTAL R664 1-249-417-11 CARBON 1/4W R665 1-249-429-11 CARBON 1/4W...
  • Page 42 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 43 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 44 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 45 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 46 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 47 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 48 KV-27V42/27V66/29SL42K/29SL42T/29VL42T/29XL42T Note: Note: Les composants identifies per un trame et une The components identified by shading marque sont critiques pour la securite. Ne and mark are critical for safety. Replace les remplacer que par une piece portant le only with part number specified.
  • Page 49 Sony Corporation English Sony Technology Center 99DS74408-1 Product Quality Division Printed in U.S.A. 9-965-858-01 Service Promotion Department © 1999.4...

This manual is also suitable for:

Trinitron kv-27v66Trinitron kv-29sl42tTrinitron kv-29vl42tTrinitron kv-29xl42tTrinitron kv-29sl42k

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