kv-21lt1u - Reptips

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TABLE OF CONTENTS Section Title Page Section Title Page Specifications .................... 3 Connectors .................... 5 Self Diagnostic Software .................... 6 1. GENERAL Switching On the TV and Automatically Tuning .................... 7 Introducing the Menu System .................... 8 Teletext .................... 10 Connecting Optional Equipment.................... 10 Using Optional Equipment .................... 10 Troubleshooting .................... 11 2. DISASSEMBLY KV-21LT1 2-1. Rear Cover Removal .................... 12 2-2. A Board PWB Removal 1 .................... 12 2-3. A Board PWB Removal 2 .................... 12 2-4. Service Position .................... 12 2-5. Wire Dressing .................... 12 2-6. Picture Tube Removal .................... 13 KV-21FT2 2-7. Rear Cover Removal .................... 14 2-8. Chassis Removal .................... 14 2-9. Service Position .................... 14 2-10. Wire Dressing .................... 14 2-11. Picture Tube Removal .................... 15 CAUTION SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE ANODE CAP. WARNING !! AN ISOLATION TRANSFORMER SHOULD BE USED DURING ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED TO THE POWER LINE. SAFETY-RELATED COMPONENT WARNING !! COMPONENTS IDENTIFIED BY SHADING AND MARKED £ ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. 2 3. SET-UP ADJUSTMENTS 3-1. Beam Landing .................... 16 3-2. Convergence .................... 17 3-3. Focus Adjustment .................... 19 3-4. Screen (G2), White Balance .................... 19 4. CIRCUIT ADJUSTMENTS 4-1. Electrical Adjustments .................... 20 4-2. Test Mode 2 .................... 22 5. DIAGRAMS 5-1. Circuit Board Location .................... 24 5-2. Block Diagrams .................... 25 5-3. Schematic Diagrams and Printed Wiring Boards .................... 24 * C Board .................... 29 * A Board .................... 31 5-4. Semiconductors .................... 39 5-5. IC Blocks .................... 41 6. EXPLODED VIEWS 6-1. Chassis (KV-21LT1) .................... 42 Chassis (KV-21FT2) .................... 44 6-2. Picture Tube(KV-21LT1) .................... 43 Picture Tube(KV-21FT2) .................... 45 7. ELECTRICAL PARTS LIST .................... 46 ATTENTION APRES AVOIR DECONNECTE LE CAP DE’LANODE, COURT-CIRCUITER L’ANODE DU TUBE CATHODIQUE ET CELUI DE L’ANODE DU CAP AU CHASSIS METALLIQUE DE L’APPAREIL, OU AU COUCHE DE CARBONE PEINTE SUR LE TUBE CATHODIQUE OU AU BLINDAGE DU TUBE CATHODIQUE. ATTENTION !! AFIN D’EVITER TOUT RISQUE D’ELECTROCUTION PROVENANT D’UN CHÁSSIS SOUS TENTION, UN TRANSFORMATEUR D’ISOLEMENT DOIT ETRE UTILISÈ LORS DE TOUT DÈPANNAGE LE CHÁSSIS DE CE RÈCEPTEUR EST DIRECTMENT RACCORDÈ Á L’ALIMENTATION SECTEUR. ATTENTION AUX COMPOSANTS RELATIFS Á LA SECURITÈ!! LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE MARQUE £ SUR LES SCHÈMAS DE PRINCIPE, LES VUES 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.

3 L E D O M M E T I m e t s y S n o i s i v e l e T e g a r e v o C l e n n a h C m e t s y S r o l o C h c n e r F I , L , H / G / B 0 1 F - 2 F , 2 1 E - 2 E : F H V 9 6 E - 1 2 E : F H U Q - B , 0 2 S - 1 S , 3 0 S - 1 0 S : V T E L B A C 1 4 S - 1 2 S : R E P Y H 9 6 F - 1 2 F , 0 1 F - 2 0 F L 9 6 B - 1 2 B : F H U I M A C E S , L A P 8 5 . 3 C S T N , 3 4 . 4 C S T N ) N I O E D I V ( h s i n a p S H / G / B 2 1 E - 2 E : F H V 9 6 E - 1 2 E : F H U 0 2 S - 1 S , 3 0 S - 1 0 S : V T E L B A C 1 4 S - 1 2 S : R E P Y H M A C E S , L A P 8 5 . 3 C S T N , 3 4 . 4 C S T N ) N I O E D I V ( T R I O K / D , H / G / B 2 1 R - 1 0 R , 2 1 E - 2 E : F H V 9 6 R - 1 2 R , 9 6 E - 1 2 E : F H U 0 2 S - 1 S , 3 0 S - 1 0 S : V T E L B A C 1 4 S - 1 2 S : R E P Y H M A C E S , L A P 8 5 . 3 C S T N , 3 4 . 4 C S T N ) N I O E D I V ( K U I 9 6 B - 1 2 B F H U : I M A C E S , L A P 8 5 . 3 C S T N , 3 4 . 4 C S T N ) N I O E D I V ( l e d o M K 2 T F 1 2 - V K B 1 T L 1 2 - V K E 1 T L 1 2 - V K K 1 T L 1 2 - V K U 1 T L 1 2 - V K n o i t p m u s n o C r e w o P W 5 5 W 5 5 W 5 5 W 5 5 W 6 7 e b u T e r u t c i P n o r t i n i r T D F y a l p s i D t a l F ) s e h c n i 1 2 ( m c 5 5 . x o r p p A d e r u s a e m e r u t c i p m c 1 5 . x o r p p A ( ) y l l a n o g a i d n o i t c e l f e d e e r g e d 0 1 1 t u p t u o d n u o S : U 1 T L 1 2 / K 1 T L 1 2 / E 1 T L 1 2 / B 1 T L 1 2 ) r e w o P c i s u M ( W 8 x 1 ) o n o M S M R ( W 4 x 1 : K 2 T F 1 2 ) r e w o P c i s u M ( W 6 x 2 ) o n o M S M R ( W 3 x 2 ] R A E R [ s l a n i m r e T t u p t u O / t u p n I s t n e m e r i u q e R r e w o P V 0 4 2 - 0 2 2 r o t c e n n o c o r u E n i p - 1 2 : 1 ) d r a d n a t s C E L E N E C ( . s l a n g i s o e d i V d n a o i d u A r o f s t u p n I . B G R r o f s t u p n I . s l a n g i s o i d u A d n a o e d i V V T f o s t u p t u O s n o i s n e m i D : U 1 T L 1 2 / K 1 T L 1 2 / E 1 T L 1 2 / B 1 T L 1 2 m m 7 8 4 x 8 7 4 x 4 1 5 x o r p p A : K 2 T F 1 2 m m 7 7 4 x 0 8 4 x 8 8 4 x o r p p A ] T N O R F [ s l a n i m r e T t u p t u O / t u p n I t h g i e W : U 1 T L 1 2 / K 1 T L 1 2 / E 1 T L 1 2 / B 1 T L 1 2 g k 4 2 x o r p p A g k 1 . 6 2 x o r p p A : K 2 T F 1 2 t u p n i o e d i V k c a j o n o h p s e i r o s s e c c A d e i l p p u S ) 1 ( r e d n a m m o C e t o m e R 7 8 8 - M R ) 2 ( y r e t t a b 6 R d e t a n g i s e d C E I t u p n i o i d u A k c a j o n o h p s e r u t a e F r e h t O , k n i l t r a m S , r e m i T p e e l S , t x e t e l e T n o i t c e t e d o t u A m e t s y s V T k c a j e n o h p d a e H k c a j i n i m o e r e t s m e t s y s l o r t n o c e t o m e R l o r t n o c d e r a r f n I s t n e m e r i u q e r r e w o P c d V 3 n o i t a n g i s e d C E I s e i r e t t a b 2 ) A A e z i s ( 6 R . e c i t o n t u o h t i w e g n a h c o t t c e j b u s e r a s n o i t a c i f i c e p s d n a n g i s e D

Page 1: SERVICE MANUAL FE-2 CHASSIS MODEL C

Page 5 and 6: 21 pin connector 21 19 17 15 13 11

Page 7 and 8: The operating instructions mentione

Page 9 and 10: Level 1 Level 2 Level 3 / Function

Page 11 and 12: Troubleshooting Here are some simpl

Page 13 and 14: 2-6. Picture Tube Removal WARNING:

Page 15 and 16: 2-11. Picture Tube Removal WARNING:

Page 17 and 18: 3-2. Convergence Preparation: · Be

Page 19 and 20: Layout of each control V.STAT 3-3.

Page 21 and 22: Sub Brightness Adjustment 1. Input

Page 23 and 24: Memo 23

Page 25 and 26: 5-2. BLOCK DIAGRAMS (1) IC604 2 1 D

Page 27 and 28: A B C D E F G R S T U V W X Y Z H I

Page 29 and 30: 5-4. SEMICONDUCTORS LM393DT TDA2822

Page 31 and 32: 5-5 IC BLOCK DIAGRAMS A BOARD IC604

Page 33 and 34: 6-2. KV-21LT1 PICTURE TUBE 51 52 53

Page 35 and 36: 51 6-4. KV-21FT2 PICTURE TUBE 52 72

Page 37 and 38: The components identified by shadin





diode

ceramic

chip

menu

board

carbon

picture

programme

elect

metal

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