GTK-XB90
3
1.
SERVICING NOTES
............................................. 4
2. DISASSEMBLY
2-1. Disassembly
Flow
........................................................... 6
2-2. Side Panel L (Left Side),
Lithium Ion Battery Connector (XP3) ............................ 7
2-3. Lithium Ion Battery ........................................................ 7
2-4. Side Panel R (Right Side) ............................................... 8
2-5. Top Panel Block .............................................................. 8
2-6. POWER
Board
................................................................ 9
2-7. MIC KNOB Board .......................................................... 9
2-8. MAIN
Board
................................................................... 10
2-9. Chassis
Block
.................................................................. 11
2-10. NFC Board ...................................................................... 12
2-11. Top Handle ...................................................................... 12
2-12. KEY Board ...................................................................... 13
2-13. BT Board ......................................................................... 13
2-14. Bottom Panel Assy .......................................................... 14
2-15. Front Panel Block-1 ........................................................ 15
2-16. Front Panel Block-2 ........................................................ 16
2-17. Speaker Unit (WF) .......................................................... 17
2-18. TOP SPEAKER Board, TOP LED Board ....................... 18
2-19. BOTTOM SPEAKER Board, BOTTOM LED Board .... 19
2-20. Speaker Unit (TW), Front Panel Assy ............................ 20
3.
TEST MODE
............................................................ 21
4. TROUBLESHOOTING
.......................................... 21
5. DIAGRAMS
5-1. Block Diagram - OVERALL Section - ........................... 22
5-2. Block Diagram - POWER SUPPLY Section - ................ 23
5-3. Printed Wiring Board - MAIN Board - ........................... 25
5-4. Schematic Diagram - MAIN Board (1/8) - ..................... 26
5-5. Schematic Diagram - MAIN Board (2/8) - ..................... 27
5-6. Schematic Diagram - MAIN Board (3/8) - ..................... 28
TABLE OF CONTENTS
5-7. Schematic Diagram - MAIN Board (4/8) - ..................... 29
5-8. Schematic Diagram - MAIN Board (5/8) - ..................... 30
5-9. Schematic Diagram - MAIN Board (6/8) - ..................... 31
5-10. Schematic Diagram - MAIN Board (7/8) - ..................... 32
5-11. Schematic Diagram - MAIN Board (8/8) - ..................... 33
5-12. Printed Wiring Board - NFC Board - .............................. 34
5-13. Schematic Diagram - NFC Board - ................................. 34
5-14. Printed Wiring Board - BT Board - ................................. 34
5-15. Schematic Diagram - BT Board - ................................... 35
5-16. Printed Wiring Board - KEY Board -.............................. 36
5-17. Schematic Diagram - KEY Board - ................................ 37
5-18. Printed Wiring Board - MIC KNOB Board - .................. 38
5-19. Schematic Diagram - MIC KNOB Board - .................... 38
5-20. Printed Wiring Board - TOP SPEAKER Board - ............ 39
5-21. Schematic Diagram - TOP SPEAKER Board - .............. 39
5-22. Printed Wiring Board
- BOTTOM SPEAKER Board - ..................................... 39
5-23. Schematic Diagram - BOTTOM SPEAKER Board - ..... 39
5-24. Printed Wiring Board - TOP LED Board - ...................... 40
5-25. Schematic Diagram - TOP LED Board - ........................ 41
5-26. Printed Wiring Board - BOTTOM LED Board - ............ 42
5-27. Schematic Diagram - BOTTOM LED Board - ............... 43
5-28. Schematic Diagram - POWER Board - .......................... 44
5-29. Printed Wiring Board
- POWER Board (US and CND models) - ..................... 45
5-30. Printed Wiring Board
- POWER Board (Except US and CND models) - ......... 46
6.
EXPLODED VIEWS
6-1. Side Panel Section .......................................................... 47
6-2. Speaker Cabinet Section ................................................. 48
6-3. Top Panel Section ........................................................... 49
6-4. Board
Section
.................................................................. 50
6-5. Front Panel Section ......................................................... 51
7.
ELECTRICAL PARTS LIST
.............................. 52
Accessories are given in the last of the electrical parts list.
Ver. 1.1
SYS SET
2020/08/20 22:42:53 (GMT+09:00)
