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Table Of Contents - Sony CDU31A Series Service Manual

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SECTION 4
PARTS REPLACEMENT ··· ························· ············································· ······················ 4-1
4-1
EASY REFERENCE CHART ·························································································· 4-1
4-2
BOTTOM PLATE REPLACEMENT ················································································· 4-2
4-3
FRONT PANEL ASS'Y REPLACEMENT ········································································· 4-2
4-4 .. MA-1/MA-2 MOUNTED BOARD REPLACEMENT ············································ ··············· 4-3
4-5
OPTICAL DEVICE REPLACEMENT · ·· · · · ·· · · ·· · · · · · ·· ·· · · · · ··· · · · · · · ··· · · · · · · · · · · · ·· ··· ·· · · ···· · · · ·· · · · · · · ··· · · · · 4-3
SECTION 5
CHECK AND ADJUSTMENT ························································································· 5-1
5-1
ELECTRICAL ADJUSTMENT · · · · ·· · · · · · ··· · ··· · · ·· · ······ ·· ··· · · · · ···· · · · · · ········· · · · · · · · · · · ·· · · · ·· · · · · · · · ·· · · · · · · 5-1
5-1-1 Special Tools and Measuring Equipment ·········································································· 5-1
5-1-2 Pre-Setting · · · ·· · · · · · · · · · · · · · ··· · ··· · · · · · · · · · · ····· · · ··· ····· · · · · ·· ···· ·· ·· · · · · · · · · · · · · · · · ·· · · ·· ··· · · · ·· · · · · · · · · ··· · · · · · · · 5-1
5-1-3 EF Balance ····························································································•·················· 5-3
5-1-4 Focus Servo Loop Gain · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · • · · · · · · · · · · · · · · · · ·• · · · · · · · · · · · · · • · · · · · · · · · · · · · · · · · · · · 5-4
5-1-5 Tracking Servo Loop Gain ··························································································· 5-5
5-1-6 Focus Bias ·· ··· · ··· · ··· · · · ··· · · · ·· ·· · · ···· · · · ·· ·· ·· · ·· ·· ··· ·· · ·· ··· ·· · · · · · · · ·· ······ ··· ·· ·· ····· · · · · ···· · · · ·· · · · · · · · · · ·· · 5-6
5-2
RF LEVEL (LASER POWER) AND LASER CURRENT ······················································ 5-7
5-2-1 Special Tools and Measuring Equipment ·········································································· 5-7
5-2-2 Measurement · · ·· · · · · · ···· · · · ··· · · ······ · · · ···· ····•··•···· ········· · · · ····· ······ ··············· ···•· ······ · · · · · · · · · ···· 5-7
5-3
OPTICAL DEVICE CLEANING · ···· ··· · ·· · · · ··· · · ·· · · ·········· · · · ····· · ····· ··· · ··· ··· · ······· · · ·· ·· ···· ·· ······· · · 5-8
5-3-1 Special Tools and Measuring Equipment ·········································································· 5-8
5-3-2 Cleaning with lens cleaner · ···· · · · · ···· · · ······· · ····· ··· · · · · · ·· · ··· ·· · · ··· · ·· · · · · ·· ·· ·· · · ·· · ········ · · · · · · · · ·· ······· 5-8
SECTION 6
EXPLODED VIEWS AND LIST ····················································································· 6-1,..
6-1
MECHANICAL ASS'Y LOCATION ················································································· 6-1
6-1-1 Overall Ass'y ········•··································································································· 6-1
6-1-2 Packing Material ·····················•·················•·················································•·············· 6-5
6-2
DIAGRAMS ················•···········································.·······································•············· 6-6
6-3
PART LAYOUT AND CIRCUIT DIAGRAM ···································································· 6-8
6-3-1
Parts Layout on MA- I /MA-2 Mounted Board · ···· · ····· · ·· · ··· ·· · · · · · ···· ·· ·· · ··· · · · ···· · · ······· · ······· ·· · · ·· · 6-8
6-3-2 Circuit Diagram on MA-I Mounted Board ····························•··················•·•············•···•····· 6-17
6-3-3 Circuit Diagram on MA-2 Mounted Board ·················•···············••················•···················· 6-25
6-4
ELECTRIC PARTS LIST •····························•································································· 6-33
SECTION 7
SEMICONDUCTORS PIN ASSIGNMENT ········································································ 7-1
II

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