Denon DVD-3800 Service Manual page 8

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How to Replace Traverse Unit
1. Preparing for Replacement
(1) Removing Clamp Base Damper
Remove 4 pcs of 2.6mm machine screw (a), and detach
the Clamp Base Damper upward.
(2) Removing Clamp Base
Remove 6 pcs of 3mm P-tight screw (b), and detach the
Clamp Base upward.
(3) Ejecting Loader
Through the left rectangular hole of the Mechanism Unit,
push the slider with a ruler or screwdriver until the
Traverse portion lowers and the Loader comes out a little.
(4) Removing Loader
• Remove 2 pcs of 3mm P-tight screw (c) on the Loader
Holder left.
• Remove 2 pcs of 3mm P-tight screw (d) on the Loader
Holder right, then pull up the Bearing Plate.
• Fully pull out the Loader forward, and lift up to take it
out.
(5) Shorting Pickup
To protect the Pickup from static electricity, short-circuit
2 positions as shown in figure.
(6) Removing Main P.W.B. Ass'y
Remove 4 pcs of 3mm P-tight screw (e), and detach the
Main P.W.B. Ass'y downward.
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2. Replacing Traverse Unit
(1) Removing Wires
• CX241: 24P-FFC for Pickup
• CX151: 15P-FFC for Spindle
• CX031: 3P-PH wire for PU Slide
(2) Removing Traverse Unit
Remove 4 pcs of special screw (f) and dampers, then
take out the Traverse Unit upward.
(3) Mounting Traverse Unit
Mount the Traverse Unit following the reverse order.
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(a)
(b)
(c)
Holder
A
(3)
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3 6 7 1 3 1 5
(e)
(f)
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DVD-3800
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Clamp Base Damper
Clamp Base
(d)
Bearing Plate
Loader
(4)
Main P.W.B. Ass'y
0 5 8 2 9 9 4 2 8
Solder to short-circuit (CD)
Solder to short-circuit (DVD)
Short-circuit with solder (enlarged fig. A)
Traverse Unit
Damper
m
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