Sony HT-NT3, Service Manual

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HT-NT3
4
1. SERVICING NOTES
............................................. 5
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 9
2-2. Front Panel (Left, Right, Center) Section-1 .................... 10
2-3. Front Panel (Left, Right, Center) Section-2 .................... 11
2-4. CARD
WLAN/BT COMBO ........................................... 12
2-5. KEY Board, IR TXL Board, IR TXR Board, WS CHUKEI
Board, RC-S730 (WW) ................................................... 13
2-6. Loudspeaker (6 cm)-080-12 (L-ch, R-ch),
Mounted Board (Left, Right) .......................................... 14
2-7. Power Cord, MB-1407 Board Section ............................ 15
2-8. Switching Regulator (3L405W), AUDIO IO Board ....... 16
2-9. AMP
Board ..................................................................... 17
2-10. MB-1407 Board .............................................................. 18
3. TEST MODE
............................................................ 19
4. TROUBLESHOOTING
.......................................... 27
5. DIAGRAMS
5-1. Block Diagram - HDMI/USB/NETWORK Section - ..... 28
5-2. Block Diagram - MEMORY/AUDIO/AMP Section - .... 29
5-3. Block Diagram - PANEL/POWER SUPPLY Section - .. 30
5-4. Printed Wiring Board - MB-1407 Board
(suffi x 12 (EXCEPT AEP, UK, RU, AUS)) - .................. 32
5-5. Printed Wiring Board - MB-1407 Board
(suffi x 23 (AEP, UK, RU, AUS)) - ................................. 33
5-6. Schematic Diagram - MB-1407 Board (1/12) - .............. 34
5-7. Schematic Diagram - MB-1407 Board (2/12) - .............. 35
5-8. Schematic Diagram - MB-1407 Board (3/12) - .............. 36
5-9. Schematic Diagram - MB-1407 Board (4/12) - .............. 37
5-10. Schematic Diagram - MB-1407 Board (5/12) - .............. 38
TABLE OF CONTENTS
5-11. Schematic Diagram - MB-1407 Board (6/12) - .............. 39
5-12. Schematic Diagram - MB-1407 Board (7/12) - .............. 40
5-13. Schematic Diagram - MB-1407 Board (8/12) - .............. 41
5-14. Schematic Diagram - MB-1407 Board (9/12) - .............. 42
5-15. Schematic Diagram - MB-1407 Board (10/12) - ............ 43
5-16. Schematic Diagram - MB-1407 Board (11/12) - ............ 44
5-17. Schematic Diagram - MB-1407 Board (12/12) - ............ 45
5-18. Printed Wiring Board - AMP Board - ............................. 46
5-19. Schematic Diagram - AMP Board - ................................ 47
5-20. Printed Wiring Board - AUDIO IO Board - .................... 48
5-21. Schematic Diagram - AUDIO IO Board - ...................... 48
5-22. Printed Wiring Board - WS CHUKEI Board - ................ 49
5-23. Schematic Diagram - WS CHUKEI Board - .................. 49
5-24. Printed Wiring Board - OLED CHUKEI Board - ........... 50
5-25. Schematic Diagram - OLED CHUKEI Board - .............. 50
5-26. Printed Wiring Board - IR TXL Board - ......................... 51
5-27. Schematic Diagram - IR TXL Board - ............................ 51
5-28. Printed Wiring Board - IR TXR Board - ......................... 51
5-29. Schematic Diagram - IR TXR Board - ........................... 51
5-30. Printed Wiring Board - KEY Board -.............................. 52
5-31. Schematic Diagram - KEY Board - ................................ 52
6. EXPLODED VIEWS
6-1. Overall Section ............................................................... 78
6-2. Front Panel Section ......................................................... 79
6-3. Cabinet Section 1 ............................................................ 80
6-4. Cabinet Section 2 ............................................................ 81
6-5. MB-1407 Board Section ................................................. 82
7. ELECTRICAL PARTS LIST
.............................. 83
Accessories are given in the last of the electrical parts list.
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE
WITH MARK
0
ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0
SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
Ver. 1.1