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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.
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SA-HT740GCP
Summary of Contents for SA-HT740GCP
Page 7: ...7 SA HT740GCP ...
Page 11: ...11 SA HT740GCP ...
Page 18: ...8 1 3 Advanced Digital Sound 8 1 4 Easy to Use 8 1 5 HDMI Compatible Products 18 SA HT740GCP ...
Page 29: ...10 1 Disassembly Flow Chart 29 SA HT740GCP ...
Page 30: ...10 2 Main Components and P C B Locations 30 SA HT740GCP ...
Page 39: ...Step 3 Push tray assembly to the direction of arrow shown 39 SA HT740GCP ...
Page 52: ...SA HT740GCP 52 ...
Page 54: ...SA HT740GCP 54 ...
Page 62: ...62 SA HT740GCP ...
Page 80: ...SA HT740GCP 80 ...
Page 94: ...25 Exploded Views 25 1 Cabinet Parts Location 94 SA HT740GCP ...
Page 95: ...95 SA HT740GCP ...
Page 96: ...96 SA HT740GCP ...
Page 97: ...25 2 Packaging 97 SA HT740GCP ...