DOWNLOAD Sony MEX-BT2900 / MEX-BT2950 Service Manual ↓ Size: 2.8 MB | Pages: 42 in PDF or view online for FREE

6 two coil springs (damper) (natural)

7 coil spring (damper) (green)

8 chassis (OP) assy

5

1 tension spring (KF)

2 gear (LE1)

3 lever (D)

4 slider (R)

3 chucking arm sub assy

2

1 spring

Note 1: Have this portion receive the chassis.

Note 1: Have this portion receive the chassis.

Note 2: Be careful not to touch the turn table.

3 sled motor assy

1 spring

2 three serration screws

u 3)

u 3)

Note 1: Place the stand with care not to touch the turn table.

Note 2: Never remove these parts since they were adjusted.

Note 3: Take care to prevent the chassis from being bent
 

when tightening the three machine screws.

1

2 optical pick-up section

Note: Be careful not to touch the lens and hologram
 

terminal when removing the optical pick-up section.

There is space at the end of the 
leaf spring (sub guide) to avoid 
contact with the slide.

1 pan tapping screw

u 2.5)

2 leaf spring (sub guide)

3 leaf spring (OP)

5 optical pick-up

4 lead screw assy

Prevent the end of the 
leaf spring (sub guide) from being 
in contact with the OP slide base.

Prevent the end of the 
leaf spring (sub guide) from being 
in contact with the OP slide base.

Setting method:
1.  Press the [SOURCE/OFF] button for 1 second to turn the pow-

er off.

2.  Press the [4] 

→ [5] → [1] buttons sequentially (the [1] button 

is pressed for two seconds).

3.  It is set to the test mode, and all segments of the liquid crystal 

display light.

Releasing method:
Press the [SOURCE/OFF] button for 1 second.

MICROPHONE  AUDIO  LOOPBACK
To confi rm the state of the external microphone/internal micro-
phone used when a handsfree function is used, the microphone 
audio is output from the speaker.
The breakdown judgment of the microphone can be done without 
connecting H/F with the cellular phone.

Procedure:
1.  Enter the test mode.
2.  Press the [SOURCE/OFF] button to select the Bluetooth Phone 

function.

3.  On/off of the microphone audio loopback function changes 

whenever the [2] button is pressed (“ALBM” is displayed in 
the liquid crystal display).

 

ON

Lit

OFF

None