http://202.224.189.178/~sgml/viewing/SA-HT822VP/ALL/SVC/s1610010000.html
16.10.1 Gear for servicing information
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This unit has a gear which used for chacking items (open/close of disc tray, up/down operation of
traverse unit by manually) when servicing. (For gear information, that is described on the items
for disassembly procedures.)
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For preparation of gear (for servicing), perform the procedures as follows.
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In case of re-servicing the same set, the “ gear for servicing” may be took off because it had been
used. So, the “gear for servicing” must be stored.
1. Remove the gear attached to top cover of CD loading mechanism.
2. Insert the hexgonal wrench (2.5mm) into the gear.
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