HCD-VX880AV - Sony Audio Service Manual (repair manual). Page 6

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• 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

customer.

Procedure:
1. Press three buttons  

p  ,  ENTER/NEXT  , and  1/u  simultaneously.

2. “COLD RESET” is displayed on the fluorescent display tube and reset is executed.

• This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.
Procedure:
1. Press  

1/u  button to turn the set ON.

2. Press  CD LOOP  button and  

1/u  button simultaneously.

3. A message “LOCK” is displayed on the fluorescent indicator tube, and the CD delivery mode is set.

• This mode resets the set with the preset data kept stored in the memory.  The hot reset mode functions same as if the power cord is plugged

in and out.

Procedure:
1. Press three buttons  

p  ,  ENTER/NEXT  , and  DISC 1  simultaneously.

2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset.

• This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the optical pick-up.
Procedure:
1. Press  

1/u  button to turn the set ON.

2. Press three buttons  

p  ,  ENTER/NEXT  , and  §  simultaneously.

3. The Sled Servo mode is selected, if “CD” is blanking on the fluorescent indicator tube.
4. With the CD in stop status, When the  

) +  button is pressed, the optical pick-up moves outside. When  – 0  button is pressed, it

moves inside.

5. To exit from this mode, perform as follows:

1) Move the optical pick-up to the most inside track.
2) Execute MC cold reset. (Press the three buttons  

p  ,  ENTER/NEXT  , and  1/u  button simultaneously.)

Note:
• Always move the optical pick-up to most inside track when exiting from this mode.  Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be chipped.

• A step of AM channels can be changed over between 9kHz and 10kHz.
Procedure:
1. Press  

1/u  button to turn the set ON.

2. Select the function “TUNER”, and press  TUNER/BAND  button to select the BAND “AM”.
3. Press  

1/u  button to turn the set OFF.

4. Press  ENTER/NEXT  and  

1/u  buttons simultaneously, and the display of  fluorescent indicator tube changes to “AM 9k STEP” or “AM

10k STEP”, and thus the channel step is changed over.

Procedure:
1. Press three buttons  

p  ,  ENTER/NEXT  , and  DISC 2  simultaneously.

2. LEDs and fluorescent indicator tube are all turned on.

Press  DISC 2  button, and the key check mode is activated.

3. In the key check mode, the fluorescent indicator tube displays “K 0 V0 J0”.  Each time a button is pressed, “K”value increases. However,

once a button is pressed, it is no longer taken into account.
“J” Value increases like 1, 2, 3 ... if rotating  

0 AMS )  knob in “+”  direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.

“V” Value increases like 1, 2, 3 ... if rotating  VOLUME  knob in “+”  direction, or it decreases like 0, 9, 8 ... if rotating in “-” direction.

4. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.