Bose AV28 User Manual

62
Digital Audio
Connector
Analog Audio
Connector
Mode Select
Headers
ATAPI Interface
Connector
Power Supply
Connector (4P)
1
DIGITAL
OUT
GND
R
L
GND
MASTER
SLAVE
CSEL
+5V
+12V
GND
Figure 5. DVD Player Rear Panel
Laser Current Measurement
1. Turn on the media center and insert a disc. Insert a DVD when measuring the DVD laser
current and a CD when measuring the CD laser current.
2. Measure and record the voltage at the points 5V and L5V referenced to the ground shown in
figure 6.
3. Subtract L5V from 5V (5V-L5V) and record the laser voltage (LmV).
LmV/1 Ohm equals laser current (LC).
4. The measured laser current value should be ± 20% of the printed current rating on the pickup
head (PU). PU- .20PU < LC <PU + .20PU. Refer to figure 6 for the location of the laser current
rating. If the value is out of range, and the lens has been cleaned, replace the DVD/CD assembly.
Figure 6. Laser Current Measurement Point
Laser Current Measurement

Bose AV28 Specifications

General

Type	DVD player
Progressive Scan	Yes
Remote Control	Yes
Upscaling	No
Playable Media Format	DVD, CD, MP3
Video Output	Component, Composite, S-Video
Audio Output	Digital Optical, Digital Coaxial