CMT-DH30, HCD-DH30 - Sony Audio Service Manual (repair manual). Page 14

1.  DVD  SERVICE  MODE  GENERAL  DESCRIPTION
This mode let you make diagnosis and adjustment easily by using 
the remote commander and the TV screen. The instructions, diag-
nostic results, etc. are given on the on-screen display.

2.  ENTERING  DVD  SERVICE  MODE
Procedure:
1.  Press the [

?/1

] button to turn on the system.

2.  Press the [DVD 

N

] button to select the “DVD”.

3.  Press three buttons of [

x

], [VOLUME +] and [PROGRESSIVE] 

simultaneously.

4.  The message “SERVICE IN” appears on the fl uorescent  in-

dicator tube and top menu of the Remocon Diagnosis Menu 
appears on the on-screen display on the TV screen as follows. 
The model name, IF-con version and Syscon version are dis-
played at the bottom of the on-screen display.

 

Remocon Diagnosis Menu

0. External Chip Check

1. Servo Parameter Check

2. Drive Manual Operation

3. Emergency History

4. Version Information

Model Name 

:DH_xx

IF-con:Ver.xx.xx(xxxx)

Syscon:Ver.x.xxx

5.  To execute each function, press its number by using numeric 

button on the remote commander.

6.  To release from this mode, press the [

?/1

] button to turn off 

the system.

3.  EXECUTING  IOP  MEASUREMENT
In order to execute IOP measurement, the following standard pro-
cedures must be followed.
Procedure:
1.  From the top menu of Remocon Diagnosis Menu, select “2 

Drive Manual Operation” by pressing the [2] button on the 
remote commander. The following screen appears on the on-
screen display

 

Drive Manual Operation

1. Servo Control

2. Track/Layer Jump

3. Manual Adjustment

4. Tray Aging Mode

5. MIRR time Adjust

0. Return to Top Menu

2.  Select “3. Manual Adjustment” by pressing the [3] button on 

the remote commander. The following screen appears on the 
on-screen display.

 

Manual Adjust

1. Track Balance Adjust:

2. Track Gain Adjust:

3. Focus Balance Adjust:

4. Focus Gain Adjust:

5. Eq boost Adjust:

6. Iop:

7. TRV. Level:

8. S curve(FE) Level:

9. RFL(PI) Level:

0. MIRR Time:

[

V][v]  Change Value

[RETURN]Return to previous menu

3.  Select “6. Iop:” by pressing [6] button on the remote com-

mander.

4.  Wait until a hexadecimal number appear in the on-screen dis-

play as below.

 

Manual Adjust

1. Track Balance Adjust:

2. Track Gain Adjust:

3. Focus Balance Adjust:

4. Focus Gain Adjust:

5. Eq boost Adjust:

6. Iop: 57

7. TRV. Level:

8. S curve(FE) Level:

9. RFL(PI) Level:

0. MIRR Time:

[

V][v] Change Value

[RETURN]Return to previous menu

5.  Convert data from hexadecimal to decimal by using conver-

sion table.

6.  If the value is smaller than 93 (decimal), then it is OK. How-

ever if the value is higher than 93, then BU (base unit) is defec-
tive and need to be change.

7.  Press the [

O

 RETURN] button on the remote commander to 

return to previous menu.

8.  Press the [0] button on the remote commander to return to the 

top menu of Remocon Diagnosis Menu.

9.  Press the [

?/1

] button to turn off the system.