DOWNLOAD Sony CMT-M373NT / HCD-M373 Service Manual ↓ Size: 11.17 MB | Pages: 110 in PDF or view online for FREE

25

2

 screw (BVTT 3

 

×

 6)

9

 two screws (BVTT 3

 

×

 6)

1

 two screws (BVTT 3

 

×

 6)

3

 screw (BVTT 3

 

×

 6)

4

 four screws (BVTP 2.6

 

×

 8)

8

 two screws (BVTP 3

 

×

 16)

5

 screw (BVTT 3

 

×

 6)

6

 REG board

7

 screw (BVTP 3

 

×

 8)

qa

 AMP board

qs

heat sink

0

flat type wire (11 core) (CN802)

6

TRANS board

2

power transformer (T900)

4

5

power cord 

1

 four screws (BVTT 3

 

×

 6)

3

 screw (BVTT 3

 

×

 6)

26

2

2

1

 screw (BVTT 3

 

×

 6)

4

 CD mechanism deck 

   (CDM55A-30BBD61B)

3

 loading panel assy

2

 Push the claw in the

     direction of the arrow 

C

. 

1

 Pull out the tray in the direction of the arrow 

A

. 

     While pushing this claw in the direction of the arrow 

B

,

     release the lock.

Release the lock.

3

 Pull out the tray.

4

 belt (CDM55)

5

 spacer (55)

6

 pulley (LDG)

7

 roller

q;

 cam (CDM55)

8

 gear (B)

9

 gear (A)

B

 

B

A

C

27

1

 floating screw

     (+PTPWH M2.6)

3

 chassis (55D)

2

 Remove the base unit (BU-30BBD61B)

     in the direction of the arrow 

A

. 

A

8

 two insulators

9

 two insulators

qs

 BD (CD) board

2

 floating screw

     (+PTPWH M2.6)

3

 floating screw

     (+PTPWH M2.6)

4

 two floating screws

     (+PTPWH M2.6)

5

 bu holder (BU-30)

6

 two compression springs

7

 two compression springs

qd

 optical pick-up

(BU-30B assy)

qa

 Remove the two solderings

0

 Remove the two solderings

1

flat type wire (16 core)

    (CN102)

28

• The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to

the customers.

Procedure:
1. Press the  ?/1  button to turn the power on.
2. Press three buttons  x  ,  ENTER/START  and  ?/1  simultaneously.
3. When this button is operated, all of the settings are reset. Then the POWER is turned off and the watch display appears.

• This mode is used to check the software version, LCD, LED and keyboard.
Procedure:
1.

Press the  ?/1  button to turn on the power.

2.

Press the  FUNCTION  button to enter mode other than “TUNER”.

3.

Press three bottons  x ,  ENTER/START  and  TUNER/BAND  simultaneously.

4.

When the panel test mode is activated, LEDs and LCD segments are all turned on.

2-1. Version check

1. When entering panel test mode, press the  FM MODE/REPEAT  button. The model name (“M333NT”) and destination are displayed,

and the  

MD

  ,  

CD

  and   

TAPE

  segments flash.

2. Each time the  FM MODE/REPEAT  button is pressed, the display changes “MC, GC, CD, CDD, CDMA, CDMB, BDA, BDB, ST,

TA, TM, TC and MD” (returns to MC) in this order, and returns to the top of the version display.

3. When the  REC MODE  button is pressed while the version numbers are being displayed, year, month and day of the software

creation appear. When the  REC MODE  button is pressed again, the display returns to the software version display.When
the  FM MODE/REPEAT  button is pressed while year, month and day of the software creation are being  displayed, the year, month
and day of creation of the software versions are displayed in the same order of version display.

2-2. Key check

1. Press the  TUNING MODE/PLAY MODE   button, and the key check mode is activated. In the key check mode, the LCD displays “K

0 J 0 V 0”. Each time a button is pressed, “K 0” value increases. However, once a button is pressed, it is no longer taken into account.
It is end at “K21J 0V 0”.
A turn of   VOLUME  knob changes value of “V” between 0 and 9. If it turns to the right, a value will increase, and if it turns to the
left, a value will decrease.

2. To exit from this mode, press three buttons in the same manner as step 3, or disconnect the power cord.

About “R”
As this unit has only a few buttons, some operations require the use of remote commander (RM-SM100EW/provided with unit)  buttons. These
operations are indicated as “R” in this manual.
Example:  MENU/NO “R”  ...Press the  MENU/NO  button of the remote commander.

Incorrect operations may be performed if the test mode is not entered properly.
In this case, press the  ?/1  button to turn the power off, and retry to enter the test mode.

Procedure:
1.

Press the  ?/1  button to turn the power on.

2.

Press three buttons  x ,  ENTER/START  and  TAPE Y  simultaneously.

3.

The set goes to the common test mode and the  

MD 

 and  

TAPE  

segments flash.

3-1. Amp Test Mode

1. In the common test mode, every time you press the  BASS/TRE “R”  button, the following items changes in the order as shown below.

“TONE MAX”

“TONE MIN”

“TONE FLAT”

(BASS/TRE MAX, VOL MAX)

(BASS/TRE MIN, VOL MAX)

(BASS/TRE FLAT, VOL MAX)

2. When the  VOLUME  knob is turn clockwise or  VOLUME + “R”  button  is pressed, VOLUME goes MAX.
3. When the  VOLUME  knob is turn counterclockwise or   VOLUME – “R”  button  is pressed, VOLUME goes MIN.
4. To exit from this mode, press the  ?/1  button or disconnect the power cord.

3-2. Tape Test

1. Check the set is in the common test mode.
2. Insert a recordable cassette tape.
3. Input audio signal into the analog input (SJ302).
4. Press the  z TAPE  button.
5. Select the recording direction with the  TAPE Y  button.
6. Press the  X TAPE  button to start recording.
7. When the  lm –  or  + ML  button knob against the tape recording direction is pressed, the tape returns to the recording

started point and the set starts playback.

8. To exit from this mode, press the  ?/1  button or disconnect the power cord.