CDX-M9900, CDX-M9905X - Sony Car Audio Service Manual (repair manual). Page 3

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This unit can play the following discs:

Type of discs

Label on the disc

Audio CD

MP3 files

• Some CD-Rs/CD-RWs (depending on the equipment used for

its recording or the condition of the disc) may not play on this
unit.

• You cannot play a CD-R/CD-RW that is not finalized∗.
• You can play MP3 files recorded on CD-ROMs, CD-Rs, and

CD-RWs.

• A CD-R/CD-RW to which a session can be added can be played.

∗ A process necessary for a recorded CD-R/CD-RW disc to be

played on the audio CD player.

When repairing or servicing this set, connect the jig (extension cable)
as shown below.

• Connect the MAIN board (CN401) and the SERVO board (CN2)

with the extension cable (Part No. J-2502-062-1).

In this set, the front panel is lowered to below the bottom face when
it is opened.
When servicing the set, place it on a stand having a height of about
2 cm.

The front panel is forced to OPEN/CLOSE at the timing that the
power (ACC) is turned off.
If the Z button for the front panel is not effective, the following
method is used:

With the front panel open: The front panel is closed when ACC is

switched from ON to OFF edge.

With the front panel closed: The front panel is opened when ACC

is switched from ON to OFF edge.

When repairing, the complete DIGITAL board should be replaced
since any parts in the DIGITAL board cannot be repaired.

SERVO BOARD
CN2

MAIN BOARD
CN401

J-2502-076-1

stand