13 Measurements and Adjustments
13.1. Service Tools and Equipment
Application
Name
Number
Tilt adjustment
DVD test disc
DVDT-S20 [SPG]
TORX screw driver (T6)
Available on sales route. (T6) or
RFKZ0185 [SPG]
Others
Grease
RFKXPG641 [SPG]
Confirmation
CD test disc
PVCD-K06 or any other commercially
available disc
VCD test disc
PVCD-K06 or any other commercially
available disc
Recovery disc
RFKZD03R005 [SPG]
13.2. Important points in adjustment
13.2.1. Important points in optical adjustment
·
Before starting optical 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
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.
13.2.2. Important points in electrical adjustment
·
Follow the adjustment procedures described in this manual.
13.3. Storing and handling of 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.
4. If adjustment is done using a warped disc, the adjustment will be incorrect and some discs will not be playable.
48
SA-HT640WPL
Summary of Contents for SA-HT640WPL
Page 4: ...23 2 Packaging 109 24 Replacement Parts List 110 24 1 Component Parts List 111 4 SA HT640WPL ...
Page 10: ...10 SA HT640WPL ...
Page 16: ...16 SA HT640WPL ...
Page 19: ...8 2 Detail Block Diagram Receiver module 19 SA HT640WPL ...
Page 31: ...31 SA HT640WPL ...
Page 37: ...10 1 Disassembly Flow Chart 37 SA HT640WPL ...
Page 38: ...10 2 Main Components and P C B Locations 38 SA HT640WPL ...
Page 46: ...Step 3 Push tray assembly to the direction of arrow shown 46 SA HT640WPL ...
Page 53: ...14 2 Main P C B 53 SA HT640WPL ...
Page 60: ...SA HT640WPL 60 ...
Page 68: ...SA HT640WPL 68 ...
Page 70: ...70 SA HT640WPL ...
Page 80: ...SA HT640WPL 80 ...
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Page 97: ...97 SA HT640WPL ...
Page 104: ...21 3 4 2 Receiver Module P C B 104 SA HT640WPL ...
Page 106: ...23 Explode Views 23 1 Cabinet Parts Location 106 SA HT640WPL ...
Page 107: ...107 SA HT640WPL ...
Page 108: ...108 SA HT640WPL ...
Page 109: ...23 2 Packaging 109 SA HT640WPL ...