Hitachi cdr-7930 User Manual

11

Symptoms

Possible causes

Remedy

The CD-ROM
Drive does not
operate even when
a disc is loaded.

1.You place the disc up-side

down in the Disc Tray.

2. The disc is dirty.
3. The pick-up lens is

dirty.

4.The disc is scratched or

warped.

5.Cable connection is

incorrect.

1.Place the disc right side up in the

Disc Tray, then load it.

2.Clean the disc surface.

(See page 4)

3.Clean up the pick-up lens.

(See page

10)

4.Change the disc.

5.Turn off your SYSTEM and re-

connect cables correctly.

The Disc Tray can
not beopened.

The program is incorrect. It
is locked by the program.

Check the program. Check the
program.

Communications
between the host
computer and the
devices on the
interface cable can
not be done.

There are devices with the
same Device Configuration
jumper setting on the
interface cable.

Give each device a different Device
Configuration Jumper setting.

(A)

(A)

5

47.5

Å}

0.5

79.3

Å}

0.5

(A)

(A)

190

12-M3

(Depth

(A)

(A)(A)

(A)

139.8Å}0.5

146

10Å}0.5
21.8Å}0.5

41.3

(32.5)

42.7

130.0

149

  : Max. 5)

(A : Hole)

Surface of  
the CD-ROM DRIVE

Mounting frame of  
the host computer

(A) Hole

5 (max)

Mounting Screw 

M3X0.5

Dimensions (unit : mm)

149.3

139.8+/- 0.5

10+/- 0.5

21.8+/- 0.5