MXD254B OPERATION

Troubleshooting

Problem

Cause

Action

Unit will not turn on

(no power)

Unit has power (but no sound)

Unit blows fuses

Excessive skipping

Unit will not accept

a disc

Yellow wire not connected or incorrect voltage

Check connections for proper voltage

Red wire not connected or incorrect voltage

(11~16VDC)

 

 

Black wire not connected

Check connection to ground

 

 

Fuse blown

Replace fuse

Speaker wires not connected

Check connections at speakers

 

 

One or more speaker wires touching each

Insulate all bare speaker wires from

other or touching chassis ground

each other and chassis ground

 

 

Yellow or red wire touching chassis ground

Check for pinched wire

Speaker wires touching chassis ground

Check for pinched wire

 

 

Incorrect fuse rating

Use fuse with correct rating

 

 

Unit is not mounted correctly or backstrap is

Check mounting sleeve and backstrap

not secure

support

 

 

Physical defect in media (CD, CD-R or CD-RW)

Check media for scratches

 

 

CD mechanism position out of alignment

Press EJECT for 3 seconds to reset

 

CD mechanism position

 

 

CD transit screws still in place

Remove 2 transit screws located on top

 

of the unit.

 

 

 

 

Error Codes

 

 

 

Error Code

Cause

Action

ER-1 appears on display

Disc error

Press eject or RESET

 

 

 

ER-2 appears on display

Mechanism error

Press eject or RESET

 

 

 

ER-3 appears on display

Servo error or disc is in upside down

Press eject or RESET

 

 

 

9

Page 9
Image 9
Dual MXD254B owner manual Troubleshooting, Problem Cause Action, Error Code Cause Action