HCD-E300HD, NAS-E300HD - Sony Audio Service Manual (repair manual). Page 14

The cold reset clears all data including preset data stored in the 
memory to initial conditions. Execute this mode when returning 
the set to the customer.
Procedure:
1.  In the standby status, press the [

?/1

] button to turn the power 

on.

2.  Press three buttons of [

x

], [ENTER] and at last [

?/1

] simulta-

neously.

3.  The set enters standby status.

Enter The Panel Test Mode
Procedure:
1.  In the standby status, press the [

?/1

] button to turn the power 

on.

2.  Press three buttons of [BACK], [

x

], and [

Z

] simultaneously.

3.  When the panel test mode is activated, LEDs and segments of 

the liquid crystal display are all turned on.

Version Check
Procedure:
1.  In the panel test mode (all LEDs and segments of the liquid 

crystal display are turned on), press the [BACK] button.

2.  On the liquid crystal display, model name, destination, MC 

version and its last updated date are displayed.

3.  Each time [BACK] button is pressed, the display changes start-

ing from MC, GC, GENE, GNS, HDD, USB, CD, CDMA, 
CDMB, ST, TA, TM and CLA version this order, and returns to 
the MC version display. 

4.  To release from this mode, press three buttons of [BACK], 

[

x

], and [

Z

] simultaneously.

Key Test Mode
Procedure:
1.  In the panel test mode (all LEDs and segments of the liquid 

crystal display are turned on), press the [ENTER] button.

2.  The message “KEY0 VOL0” displayed. Whenever any but-

tons are pressed and the [VOLUME] dial is turned, the value is 
changed.

3.  To release from this mode, press three buttons of [BACK], 

[

x

], and [

Z

] simultaneously.

This mode is for switch the CD power supply on/off. Even if this 
state pulls out AC plug, it is held.
Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press the [CD] button to select CD function.
3.  Press the [

?/1

] button again to turn the power off (standby).

4.  While pressing the [

x

] button, press the [

?/1

] button.

5.  It turns power on and display “CD POWER ON” or “CD 

POWER OFF”.

(Except AEP, Russian and UK models)
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press the [TUNER/BAND] button to select TUNER (AM) 

function.

3.  Press the [

?/1

] button again to turn the power off (standby).

4.  While pressing the [TUNE + 

M

 

L

] button, press the [

?/1

] 

button.

5.  It turns power on and display “9k Step” or “10k Step”, and thus 

the tuning interval is changed over.

Procedure:
1.  Press the [

?/1

] button to turn the power on.

2.  Press three buttons of [

x

], [ENTER], and [

Z

] simultaneously.

3.  It enters the common test mode and the “SLEEP c PLAY” 

segment on the liquid crystal display blinks.

4.  Each time the [VOLUME] dial is turned, “VOLUME MIN”  

and “VOLUME MAX” are displayed.

5.  Each time the [EQ] button on the remote commander is 

pressed, “TONE MAX”, “TONE MIN” and “TONE FLAT” 
are displayed.

6.  To release from this mode, press the [

?/1

] button to turn the 

power off.

The CDDB version display, custom DB initialization, HDD writ-
ing/reading test, format and HDD setup can be executed in this 
mode.

Enter The HDD Test Mode
Procedure:
1.  In the standby status, press the [

?/1

] button to turn the power 

on.

2.  Press three buttons of [HDD], [

m

] and [

Z

] simultaneously.

3.  When the HDD test mode is activated.

1.  CDDB Version Display
The version of CDDB built into HDD is displayed.
Procedure:
1.  Enter the HDD test mode.
2. Press the [

M

] [

m

] button to select the “CDDB Version”, and 

press the [ENTER] button.

3.  The version of CDDB is displayed on the liquid crystal dis-

play.

2.  Custom DB Initialization
The initialization of custom DB recorded in HDD is executed.

Note: Not used for the servicing.

Procedure:
1.  Enter the HDD test mode.
2.  Press the [

M

] [

m

] button to select the “Custom Init”, and press 

the [ENTER] button.

3. The 

following 

fi les in HDD are deleted.

• ROOT\SYSTEM\CCUDB\CCU.EDB
• ROOT\SYSTEM\CCUDB\CCU.IDX
• ROOT\SYSTEM\CCUDB\CCUTOC.IDX
• ROOT\SYSTEM\CCUDB\SCCU.EDB
• ROOT\SYSTEM\CCUDB\SCCU.IDX
• ROOT\SYSTEM\CCUDB\SCCUTOC.IDX

Note: Never execute the item because the set might not operate 

normally when the item being written, “Not used for the 
servicing.” in each item is executed.

Note: Never execute the item because the set might not operate 

normally when the item being written, “Not used for the 
servicing.” in each item is executed.