Adjustment; Service Tools And Equipment; Important Points In Adjustment; Storing And Handling Test Discs - Yamaha DVD-S1200 Service Manual

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ADJUSTMENT

1. Service Tools and Equipment

Application
Tilt adjustment DVD test disc
Inspection
Others
Confirmation
TE
L 13942296513

2. Important points in adjustment

2.1. Important points in optical pickup tilt adjustment
• Before starting optical pickup tilt adjustment, be sure to take anti-static measures.
• Optical pickup tilt adjustment is needed after replacement of the following components.
1. Optical pickup unit
2. Spindle motor unit
3. Optical pickup peripheral parts (such as the rail)
Notes
Adjustment is generally unnecessary after replacing other parts of the traverse unit. However, make adjustment if there is
a noticeable degradation in picture quality. Optical adjustments cannot be made inside the optical pickup. Adjustment is
generally unnecessary after replacing the traverse unit.
2.2. Important points in electrical adjustment
• Follow the adjustment procedures described in this Manual.

3. Storing and Handling Test Discs

• Surface precision is vital for DVD test discs. Be sure to store and handle them carefully.
1. Do not place discs directly onto the workbench, etc., after use.
2. Handle discs carefully in order to maintain their flatness. Place them into their case after use and store them vertically.
Store discs in a cool place where they are not exposed to direct sunlight or air from air conditioners.
3. Accurate adjustment will not be possible if the disc is warped when placed on a surface made of glass, etc. If this
happens, use a new test disc to make optical adjustments.
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4. If adjustment is done using a warped disc, the adjustment will be incorrect and some discs will not be playable.
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Name
Hex wrench
Extension cable 26P (module P.C.B. to mother P.C.B.)
Extension cable 18P (module P.C.B. to mother P.C.B.)
Extension cable 10P (module P.C.B. to mother P.C.B.)
Extension cable 14P (module P.C.B. to mother P.C.B.)
Screw lock
Grease
Oil
CD test disc
VCD test disc
Recovery disc
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8
DVDT-S15 (AAX07320) or DVDT-S01 (TX946080)
JZS0100 (TX946380)
JGS0098 (TX946370)
JFKZ0098 (AAX27820)
RFKZ0097 (AAX27830)
VUC8026 (AAX16590)
RZZ0L01 (TX946400)
RFKXGAK152 (AAX27800)
RFKXGA1280 (AAX27790), JZS0648 (TX946410)
PVCD-K06 (TX946090) or any other commercially
available disc
PVCD-K06 (TX946090) or any other commercially
available disc
RFKZD5TR001 (AAX27810)
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DVD-S1200
9 4 2 8
Number
0 5 8 2 9 9 4 2 8
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9 9
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