Powering The Unit - Sony DVP-NS300 Training Manual

8. Mechanical Operation
Chapter 8 - Mechanical Operation
The model DAV-C770 / C990 is an AM/FM 5.1 channel receiver with a 5 disc CD/DVD player. The CD/DVD
service information is found in the core HCD-C770 / C990 service manual. The core manual does not have part
numbers for the AM antenna, speakers and remote (1-477-332-11).
This new 5-disc changer will require alignment if gears are replaced.
FIGURE 8-1 - DAV-C990 CORE UNIT
This single slot disc entry mechanism uses three motors, two rotary encoder sensors (for transport position) and
seven disc location sensors. The repair information is grouped as follows:

Powering the Unit

CD Mechanism Normal Operation
Disc loading, Stacker and Disc Clamping Motor Drive Access
Gear Alignment (Concepts, Procedure and Testing)
Powering the Unit
The top cover contains the CD operation buttons that must be connected for the mechanism to operate.
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