Yamaha YST-MS55D Service Manual - Page 2
Browse online or download pdf Service Manual for Speaker System Yamaha YST-MS55D. Yamaha YST-MS55D 34 pages. Powered multimedia speakers
Also for Yamaha YST-MS55D: Owner's Manual (15 pages)
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- 1. Table of Contents
- 2. To Service Personnel
- 3. Front and Rear Panels
- 4. Specifications
- 5. Internal View
- 6. Disassembly Procedures
- 7. Usb Port Operation Check
- 8. Block Diagram
- 9. Printed Circuit Board
- 10. Printed Circuit Board
- 11. IC Data
- 12. Schematic Diagram
- 13. Schematic Diagram
- 14. Parts List
- 15. Parts List for Carbon Resistors
YST-MS50/YST-MS55D
TO SERVICE PERSONNEL
1. Critical Components information.
Components having special characteristics are marked and
must be replaced with parts having specifications equal to
those originally installed.
2. Leakage Current
Measurement (For 120V Model only).
When service has been completed, it is imperative that you
verify that all exposed conductive surfaces are properly insu-
lated from supply circuits.
Meter impedance should be equivalent to 1500 ohm shunted by
0.15µF.
Leakage current must not exceed 0.5mA.
Be sure to test for leakage with the AC plug in both polarities.
"CAUTION"
"F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE ONLY WITH SAME TYPE 1.25A, 250V FUSE."
CAUTION
F1: REPLACE WITH SAME TYPE 1.25A, 250V FUSE.
A
V
ATTENTION
F1: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.25A, 250V FUSE.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes
to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling
food.
FRONT AND REAR PANELS
•
Satellite Speakers Front Panel
Lch
YST-MS55D
1
YST-MS50
YST-MS55D
ˆ
Rch
WALL
EQUIPMENT
OUTLET
UNDER TEST
INSULATING
TABLE
•
Satellite Speakers Rear Panel
Lch
AC LEAKAGE
TESTER OR
EQUIVALENT
Rch