HCD-GZX33D, HCD-GZX55D, HCD-GZX88D - Sony Audio Service Manual (repair manual). Page 13

[PANEL TEST MODE]
• 

This  mode  is  used  to  check  the  fl uorescent indicator tube, 
LEDs, keys, [MASTER VOLUME/DJ CONTROL] jog, 
model, destination and software version.

1.  Press [ENTER] button and [MUSIC] button simultaneously 

and hold 3 seconds.

2.  All LEDs and segments in fl uorescent indicator tube are 

lighted up. All RGB LEDs are lighted up in white color.

3.  When you want to enter to the software version display mode, 

press [+ PRESET+] button.

 

** If display shown information below, please proceed 
with [MODEL & DEST WRITE] mode to write model & 
destination.

 

“GSX8D(T)” is shown for HCD-GZX33D/GZX55D/GZX88D.

 

The model information appears on the fl uorescent indicator 
tube.

 

• 

“GSX3D” is shown for HCD-GZX33D.

 

• 

“GSX5D” is shown for HCD-GZX55D.

 

• 

“GSX8D” is shown for HCD-GZX88D.

 Press 

[+ PRESET+] button again to view the destination 

information.

4.  During the destination information display, press [+ 

PRESET+]  button.  Each  time  [+ PRESET+] button is 
pressed, the fl uorescent indicator tube shows the version of 
each category software in the following sequence: SC, MTK, 
UI, PF, SYS, CD, CDMA, CDMB, ST, TA, TAS, TM, BTM, 
BT, NFC, and return back to model information display.

5. When 

[  ] button is pressed while the version numbers are 

being displayed except model and destination, the date of 
the  software  creation  appears.  When  [  ] button is pressed 
again, the display returns to the software version display.

6.  Press [– PRESET–] button, the key check mode is activated.
7.  In the key check mode, the fl uorescent indicator tube displays 

“K 0    V0”.

 

Each time a button is pressed, “K” value increases. However, 
once  a  button  has  been  pressed,  it  is  no  longer  taken  into 
account.

 

“V” value increases in the manner of 0, 1, 2, 3 ... if [MASTER 
VOLUME/DJ  CONTROL]  knob  is  turned  clockwise,  or  it 
decreases in the manner of 0, 9, 8, 7 ... if [MASTER VOLUME 
/ DJ CONTROL] knob is turned counterclockwise.

8.  When [ENTER] button is pressed after all LEDs and segments 

in  fl uorescent indicator tube light up, alternate segments in 
fl uorescent indicator tube and LEDs would light up, all RGB 
LEDs would light up in red color. If you press [ENTER] 
button again, another half of alternate segments in fl uorescent 
indicator tube and LEDs would light up, all RGB LEDs would 
light up in green color.  Pressing [ENTER] button again 
would cause all segments in fl uorescent indicator tube and 
LEDs light up, all RGB LEDs would light up in blue color. 
Pressing [ENTER] button again would turn off all segments 
in  fl uorescent indicator tube and all LEDs including RGB 
LEDs.

9.  To release from this mode, press the buttons in the same 

manner as step 1, or disconnect the power cord.

[USER RESET]
•  The user reset clears all data including preset data stored in 

the data fl ash to initial conditions exclude history mode data.

1. Press 

[&/1] button to turn on the system.

2. Press 

[  ] button and [LED COLOR] button simultaneously 

for 3 seconds.

3.  “RESET” appears on the fl uorescent indicator tube. After 

that, the fl uorescent indicator tube becomes blank for a while, 
and the system is reset.

[COLD RESET]
•  The cold reset clears all data including preset data stored in 

the data fl ash to initial conditions included history mode data. 
Execute this mode when returning the set to the customer.

1. Press 

[&/1] button to turn on the system.

2. Press 

[  ] button and [AUDIO IN] button simultaneously for 

3 seconds.

3.  “COLD RESET” appears on the fl uorescent indicator tube. 

After that, the fl uorescent indicator tube becomes blank for a 
while, and the system is reset.

[CD/DVD SHIP MODE (WITH MEMORY CLEAR)]
•  This mode moves the optical pick-up to the position durable 

to vibration and clears all data including preset data stored in 
the data fl ash to initial conditions during the next AC-In. Use 
this mode when returning the set to the customer after repair.

1. Press 

[\/1] button to turn on the system.

2.  Select DVD/CD function.
3.  Press [DVD/CD] and [SOUND FLASH] button simultaneously 

for 3 seconds. The system turns off automatically.

4.  A message “MECHA LOCK” is displayed on the fl uorescent 

indicator tube and the CD/DVD ship mode is set.

[CD/DVD TRAY LOCK MODE]
•  This mode let you lock the disc tray. When this mode is 

activated, the disc tray will not open when [ZOPEN/CLOSE] 
button is pressed. The message “LOCKED” will be displayed 
on the fl uorescent indicator tube. This mode only applied 
when there is disc(s) on the tray.

1. Press 

[\/1] button to turn on the system.

2.  Select DVD/CD function.
3. Press 

[  ] button and [ENTER] button simultaneously and 

hold down until “LOCKED” or “UNLOCKED” displayed on 
the fl uorescent indicator tube (around 5 seconds).

[CDM AGING MODE]
• 

This mode is used for CDM aging.

1. Press 

[\/1] button to turn on the system.

2.  Select DVD/CD function.
3.  Open the disc tray, insert a disc and close the tray.
4.  Press [DVD/CD] button and [BASS BAZUCA] button 

simultaneously for 3 seconds.

5. The fl 

uorescent indicator tube displays Aging Display 

“AG xxxx/yyyy”.

 

“xxxx” represents the error counter

 

(Maximum Value of “xxxx” = 9999)

 

“yyyy” represents the cycle counter

 

(Maximum Value of “yyyy” = 9999)

6. Press 

[+ PRESET+] or [– PRESET–]  to search for Aging 

History Error Display.

 The 

fl uorescent indicator tube displays “Mx E1E2E3E4”. 

 

 

x: error history number

 

 

E1: Loading sequence JCP high

 

 

E2: Loading sequence JCP low

 

 

E3: Loading operation JCP

 

 

E4: Cam position operation JCP

7.  Press [ENTER] to Aging Display

To release from this mode, press [\/1] button or perform COLD 
RESET operation.