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SAFETY INFORMATION
CAUTION
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This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair
complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so
and refer the repair to a qualified service technician.
Where in a manufacturer's service documentation, for example in circuit diagrams or lists
of components, a symbol is used to indicate that a specific component shall be replaced only
by the component specified in that documentation for safety reasons, the following symbol shall
be used:
B
Danger of explosion if battery is incorrectly replaced.
Replaced only with the same or equivalent type recommended by the manufacturer.
Discard used batteries according to the manufacturer's instructions.
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CONTENTS
SAFETY INFORMATION..........................................................................................................................................................2
1. SERVICE PRECAUTIONS ....................................................................................................................................................3
1.1 SAFETY PRECAUTIONS ...............................................................................................................................................3
1.2 NOTES ON DISASSEMBLY / ASSEMBLY......................................................................................................................3
1.3 NOTES ON REPLACING PARTS ...................................................................................................................................3
1.4 OTHERS .........................................................................................................................................................................3
2. SPECIFICATIONS .................................................................................................................................................................4
2.1 SPECIFICATIONS...........................................................................................................................................................4
D
3. BASIC ITEMS FOR SERVICE...............................................................................................................................................4
3.1 CHECK POINTS AFTER SERVICING............................................................................................................................4
4. BLOCK DIAGRAM.................................................................................................................................................................5
4.1 BLOCK DIAGRAM ..........................................................................................................................................................5
4.2 POWER SUPPLY SYSTEM FIGURE..............................................................................................................................6
5. DIAGNOSIS...........................................................................................................................................................................7
5.1 OPERATIONAL FLOWCHART .......................................................................................................................................7
5.2 ERROR CODE LIST .......................................................................................................................................................8
5.3 CONNECTOR FUNCTION DESCRIPTION ....................................................................................................................9
5.4 FUSE CHECK .................................................................................................................................................................9
6. SERVICE MODE .................................................................................................................................................................10
6.1 DISPLAY TEST MODE1 ...............................................................................................................................................10
E
6.2 DISPLAY TEST MODE2 ...............................................................................................................................................11
6.3 SOFTWARE VERSION UP METHOD ..........................................................................................................................12
7. DISASSEMBLY....................................................................................................................................................................13
8. EACH SETTING AND ADJUSTMENT ................................................................................................................................15
9. EXPLODED VIEWS AND PARTS LIST...............................................................................................................................16
9.1 PACKING SECTION .....................................................................................................................................................16
9.2 EXTERIOR SECTION...................................................................................................................................................18
10. SCHEMATIC DIAGRAM ....................................................................................................................................................20
10.1 TUNER AMP UNIT......................................................................................................................................................20
10.2 KEYBOARD UNIT.......................................................................................................................................................21
11. PCB CONNECTION DIAGRAM ........................................................................................................................................22
11.1 TUNER AMP UNIT......................................................................................................................................................22
F
11.2 KEYBOARD UNIT.......................................................................................................................................................24
12. ELECTRICAL PARTS LIST ...............................................................................................................................................25
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CAUTION
MVH-S100UB/XINEW5
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