HT-GT1
3
1.
SERVICING NOTES
.............................................
4
2. DISASSEMBLY
2-1. Disassembly
Flow
........................................................... 6
2-2. Side L, R Panel ............................................................... 7
2-3. Top Panel Block .............................................................. 8
2-4. Front Panel Block ........................................................... 9
2-5. NFC Module (NFC1) ...................................................... 10
2-6. Bluetooth Module (BT1) ................................................ 11
2-7. PANEL Board Block ....................................................... 12
2-8. Button
Assy
..................................................................... 13
2-9. Knob
Assy
....................................................................... 14
2-10. Top Panel Assy ................................................................ 15
2-11. Rear Panel Block ............................................................ 16
2-12. DC Fan (M1) ................................................................... 17
2-13. TUNER Board ................................................................ 17
2-14. MAIN Board-1 ................................................................ 18
2-15. MAIN Board-2 ................................................................ 19
2-16. Sub Chassis ..................................................................... 20
2-17. Power Cord (AC1) .......................................................... 21
2-18. SMPS Board ................................................................... 22
2-19. Loudspeaker (18 cm) (SP1) ............................................ 23
2-20. Service Position .............................................................. 24
3.
TEST MODE
............................................................ 25
4.
ELECTRICAL CHECK
......................................... 27
5. TROUBLESHOOTING
.......................................... 28
TABLE OF CONTENTS
6. DIAGRAMS
6-1. Block Diagram - MAIN Section - ................................... 29
6-2. Block Diagram - AMP Section - ..................................... 30
6-3. Block
Diagram
- PANEL/POWER SUPPLY Section - ............................ 31
6-4. Schematic Diagram - MAIN Section (1/5) - ................... 33
6-5. Schematic Diagram - MAIN Section (2/5) - ................... 34
6-6. Schematic Diagram - MAIN Section (3/5) - ................... 35
6-7. Schematic Diagram - MAIN Section (4/5) - ................... 36
6-8. Schematic Diagram - MAIN Section (5/5) - ................... 37
6-9. Printed Wiring Boards - MAIN Section (1/2) - .............. 38
6-10. Printed Wiring Board - MAIN Section (2/2) - ................ 39
6-11. Printed Wiring Boards - KEY Section - .......................... 40
6-12. Schematic Diagram - KEY Section - .............................. 41
6-13. Printed Wiring Board - PANEL Board - ......................... 42
6-14. Schematic Diagram - PANEL Board - ............................ 43
6-15. Printed Wiring Board - SMPS Board - ........................... 44
6-16. Schematic Diagram - SMPS Board - .............................. 45
7.
EXPLODED VIEWS
7-1. Side Panel Section .......................................................... 53
7-2. Top Panel Section ........................................................... 54
7-3. Front Panel Section ......................................................... 55
7-4. MAIN Board Section ...................................................... 56
7-5. SMPS Board Section ...................................................... 57
7-6. Speaker Cabinet Section ................................................. 58
8.
ELECTRICAL PARTS LIST
.............................. 59
Accessories are given in the last of the electrical parts list.
