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5 screw
 (PTT2.6 

u 6)

5 screw
 (PTT2.6 

u 6)

1 two screws
 (PTT2.6 

u 6)

qs AMP board

8 heat transfer 
 IC 

9 Remove the solder.

9 Remove the solder.

qa bracket AMP

0 Remove the solder.

2 three screws
 (PTT2 

u 10)

6 screw
 (P2.6 

u 8)

7 chassis back

3 heat sink

4 Remove the solder.

5

Note 1: When installing the screws in 
 

the order shown below.

Note 2: When replacing the AMP board, 
 

it is necessary to spread the grease. 

 

Spread the grease over the IC1600 

 

referring to the figure below.

4

2 

3 

1 

0 Remove the 
 solder.

1 Remove the solder.

3 tuner unit
 (TUX-DSP04)

2 Remove the solder.

Note 1: When the knob (VOL) (SV) assy is replaced, Bluetooth informa-

tion writing is necessary. Refer to“BLUETOOTH INFORMA-
TION WRITING METHOD” on page 9.

2 Align two shafts and two grooves. 

3 Confirm a top and bottom 

4 Push until the clicking sound is heard.

1 Make sure that the cushion (knob) is installed 

Note 2: When pushed by a strong force there is a risk 
 

of damage to the inside of the switch.

 

Push in the appropriate force, be careful not 

 

to push too strongly.

The service position below cannot be performed with the fl exible 
fl at cable (length: 90 mm) used with the unit. Refer to “NOTE OF 
PERFORMING THE OPERATION CHECK” in the servicing 
notes, and use a long fl exible fl at cable (length: 150 mm).

CD mechanism deck
Note 2: Do not put a CD mechanism deck 
 

near the heat sink in the left side 

 

of the main unit.

CD mechanism deck
Note 3: CD mechanical deck should 
 

not be placed vertically.

CD mechanism deck
Note 3: CD mechanical deck should 
 

not be placed vertically.

CD mechanism deck
Note 4: CD mechanical deck should 
 

not be placed upside down.

Setting method:
1.  In the state of source off (the clock is displayed), enter the test 

mode by pressing the buttons in order of the [

 4] 

t [MIC 

5] 

t [V

 

ALBUM 1] (press only the [V

 

ALBUM 1] button for 

two seconds).

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

display light.

Releasing method:
Press the [

 

OFF SRC] button for 1 second.

MICROPHONE  AUDIO  LOOPBACK
To confi rm the state of the external microphone 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 [

 

OFF SRC] button to select the Bluetooth Phone 

function.

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

whenever the [ALBUM v

 

2] button is pressed (“0” is dis-

played on the liquid crystal display).

ON

BTP 0

OFF

BTP