•CD and MO Overall Adjustment Items
1. CD overall adjustment items
Item No. | Description |
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761 | VC,VR power supply H/L selection |
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300 | HPIT setting . servo OFF |
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561 | SLED inward movement |
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562 | SLED outward movement |
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High reflection electrical offset adjustment | |
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312 | Laser ON . Focus UP . vc correction |
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ALFA offset adjustment | |
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313 | IJ offset adjustment |
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314 | FE offset adjustment |
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HPIT adjustment | |
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320 | Focus servo ON |
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324 | TE offset adjustment 1 |
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321 | TE gain adjustment |
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328 | TWPP gain adjustment |
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324 | TE offset adjustment 1 |
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332 | TE offset adjustment 2 |
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330 | Tracking servo ON |
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336 | ABCD gain adjustment |
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337 | KF gain correction |
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338 | RF gain adjustment |
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344 | FCS gain adjustment |
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345 | TRK gain adjustment |
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521 | |
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522 | |
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300 | HPIT setting . servo OFF |
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2. MO overall adjustment items
Item No. | Description |
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716 | VC,VR power supply H/L selection |
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100 | R_GRV setting . servo OFF |
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Low reflection electrical offset adjustment | |
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112 | Laser ON . Focus UP vc correction |
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ALFA offset adjustment | |
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113 | IJ offset adjustment |
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114 | FE offset adjustment |
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118 | Wpp denominator offset adjustment |
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LPIT adjustment | |
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200 | LPIT setting . servo OFF |
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561 | SLED inward movement |
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220 | Focus servo ON |
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224 | TE offset adjustment 1 |
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221 | TE gain adjustment |
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224 | TE offset adjustment 1 |
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232 | TE offset adjustment 2 |
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230 | Tracking servo ON |
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236 | ABCD gain adjustment |
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237 | KF gain correction |
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238 | RF gain adjustment |
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244 | Focus gain adjustment |
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245 | Tracking gain adjustment |
Item No. | Description |
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READ GRV adjustment 1 | |
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100 | R_GRV setting . servo OFF |
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562 | SLED outward movement |
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120 | Focus servo ON |
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122 | TON offset adjustment |
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121 | TE gain adjustment |
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122 | TON offset adjustment |
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123 | TEIN offset adjustment |
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124 | TWPP offset adjustment 1 |
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130 | Tracking servo ON |
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131 | TWPP offset adjustment 1 |
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136 | ABCD gain adjustment |
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137 | KF gain correction |
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144 | Focus gain adjustment |
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145 | Tracking gain adjustment |
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134 | TWPP gain adjustment |
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131 | TWPP offset adjustment 1 |
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132 | TWPP offset adjustment 2 |
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149 | TWPP OP offset adjustmen |
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WRITE GRV adjustment | |
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490 | HCLV LCLV selection process |
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450 | HEAD DOWN . GRV servo ON |
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460 | READ → WRITE selection |
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461 | TE gain adjustment |
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463 | TEIN offset adjustment |
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470 | Tracking servo ON |
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471 | TWPP offset adjustment 1 |
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476 | ABCD gain adjustment |
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484 | Focus gain adjustment |
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485 | Tracking gain adjustment |
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451 | TWPP offset adjustment 1 |
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452 | TE offset adjustment 2 |
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460 | READ → WRITE selection |
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470 | Tracking servo ON |
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474 | TWPP gain adjustment |
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471 | TWPP offset adjustment 1 |
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472 | TE offset adjustment 2 |
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489 | TWPP OP offset adjustment |
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450 | WRITE → READ selection |
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451 | TWPP offset adjustment 1 |
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452 | TE offset adjustment 2 |
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458 | TWPP OP offset adjustment |
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448 | 30 sec continuous REC |
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400 | GRV setting . servo OFF . HEAD UP |
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READ GRV adjustment 2 | |
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120 | Focus servo ON |
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130 | Tracking servo ON |
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138 | RF gain adjustment |
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141 | FOCUS_BIAS |
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035 | Stray light offset measurement |
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100 | R_GRV setting . servo OFF |
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