HCD-V909AV, MHC-V909AV - Sony Audio Service Manual (repair manual). Page 4

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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  NEXT  ,  ENTER/NEXT  , and  DISC 1

simultaneously.

2. The fluorescent indicator tube becomes blank instantaneously,

and the set is reset.

• This mode moves the pick-up to the position durable to vibration.

Use this mode when returning the set to the customer after repair.

Procedure:
1. Press  POWER  button to turn the set ON.
2. Press  PLAY MODE  button and  POWER  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  NEXT  ,  ENTER/NEXT  , and  DISC 2

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 pick-up.

Procedure:
1. Select the function “CD”.
2. Press three buttons  NEXT  ,  ENTER/NEXT  , and  FUNC-

TION  simultaneously.

3. The Sled Servo mode is selected, if “CD” is blanking on the

fluorescent indicator tube.

4. With the CD in stop status, press  

)  button in CD section to

move the pick-up to outside track, or  

0  button to inside track.

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

1) Move the pick-up to the most inside track.
2) Press three buttons in the same manner as step 2.

Note:
• Always move the 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.

• The FUNCTION name of external input terminal can be changed

over to VIDEO or MD. With the FUNCTION selected to “MD”,
about 5dB mute is applied to the input gain.

Procedure:
1. Press  POWER  button to turn the set OFF.
2. Press  POWER  button together with  FUNCTION  button, and

the power is turned on, the display of fluorescent indicator tube
changes to “MD” or “VIDEO” instantaneously, and thus the
FUNCTION is changed over.

• A step of AM channels can be changed over between 9kHz and

10kHz.

Procedure:
1. Press  POWER  button to turn the set ON.
2. Select the function “TUNER”, and press  TUNER/BAND  but-

ton to select the BAND “AM” or “MW”.

3. Press  POWER  button to turn the set OFF.
4. Press  ENTER/NEXT  and  POWER  buttons simultaneously,

and the display of  fluorescent indicator tube changes to “9k
STEP” or “10k STEP”, and thus the channel step is changed
over.

Procedure:
1. Press three buttons  NEXT  ,  ENTER/NEXT  , and  DISC 3

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 1 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 JOG knob in “+”
direction, or it decreases like 0, 9, 8 ... if rotating in “–” direc-
tion.
“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.

This mode can be used for operation check of CD section and tape
deck section.
• If an error occurred:

The aging operation stops.

• If no error occurs:

The aging operation continues repeatedly.

1-1. Operating procedure of Aging Mode

1. Set discs in DISC 1 and DISC 2 trays.
2. Select the function “CD”.
3. Press three buttons  NEXT  ,  ENTER/NEXT  , and

KARAOKE PON/MPX  simultaneously.

4. The aging mode is activated, if a roulette mark on the fluo-

rescent indicator tube is blinking.

5. In the aging mode, the aging is executed in a sequence given

in “1-2. Operation during Aging Mode”.
The aging continues unless an alarm occurred.

6. To exit from the aging mode, press  POWER  button to turn

the set OFF.

•

If a button other than buttons In CD section is pressed during
aging, the aging in the CD section is finished.

•

To execute aging to the tape deck section successively, press  

·

button in the deck A.
“AGING” is displayed on the fluorescent indicator tube.  (For
the aging in tape deck, see “2. Aging Mode in Tape Deck Sec-
tion”.

1-2.  Operation during aging Mode
In the aging mode, the program is executed in the following se-
quence.

1. The disc table is ejected.
2. The disc tray turns to select a disc. (For a disc selection se-

quence, see Section 1-3.)

3. TOC of disc is read.
4. The pick-up accesses to the last track.
5. Disc table is ejected.
6. Steps 2 through 5 are repeated.