HCD-RV20, HCD-RV50, HCD-RV60 - Sony Audio Service Manual (repair manual). Page 5

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• This mode is used to check the fluorescent indicator tube, LED

and key.

Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press three keys of  x , [GAME EQ] and [DISC 2] simultaneously.
3. Fluorescent indicator tube and LEDs are all turned ON.
4. Press two keys of [GAME EQ] and [DISC 2] simultaneously, mode

is changed over.

5. In the key check mode, press each key, the defined key number

of every each key list is displayed on the fluorescent indicator
tube.

6. In the key count check mode, “KEYCNT 0” is displayed on the

fluorescent indicator tube. Each time a key is pressed,
“KEYCNT” value increases. However, once a key is pressed, it
is no longer taken into account.

7. In the headphone input check mode, connect the headphone,

the message “H_P ON” is displayed on the fluorescent
indicator tube, and disconnect the headphone, the message “H_P
OFF” is displayed on the fluorescent indicator tube.

8. In the volume check mode, turn the [VOLUME]  knob, the

display on the fluorescent indicator tube is changed over  to
“VOLUME UP”, “VOLUME FLAT” or “VOLUME DOWN”

• This mode is used to check operations of Amplifier.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press three keys of  x , [GAME EQ] and [DISC 3] simultaneously.
3. When the MC test mode is activated, the message “TEST

MODE” is displayed on the fluorescent indicator tube
momentarily, then VACS level is displayed on the fluorescent
indicator tube.

4. Press the [MUSIC EQ]  key, the display on the fluorescent

indicator tube is changed over to “GEQ MAX”, press the
[EFFECT ON/OFF] key, the display on the fluorescent indicator
tube is changed over to “GEQ 16”, press the [MOVIE EQ] key,
the display on the fluorescent indicator tube is changed over to
“GEQ MIN”,

5. Turn  the  [VOLUME]  knob, the display on the fluorescent

indicator tube is changed over to “VOLUME MAX”, “VOLUME
MID” or “VOLUME MIN”

6. Press the [GROOVE] key, VACS ON/OFF is changed over.
7. When the [REC PAUSE/START] key is pressed with a tape set in

the deck-B, the function is switched “MD” or “VIDEO” and
recording starts. When the m or M key is pressed during
recording, the tape is rewound back to the beginning of
recording, the function is switched to “TAPE B”, then playback
starts.

8. When the [CD SYNC] key is pressed with the test tape (AMS-

100, AMS-110A) in the deck, number of space between tunes
is counted, then if AMS-110A is set, “OK” is displayed on the
fluorescent indicator tube and if AMS-100 is set, “NG” is
displayed on the fluorescent indicator tube.

9. To release from this mode, press the [POWER] key.

• This mode is used to check the model, destination and software

version.

Procedure:
1. Set to the standby state.
2. Press three keys of  x  ,  [GAME EQ]  and  [MOVIE EQ]

simultaneously.

3. When the model, destination and version display mode is

activated, the model an destination is displayed on the
fluorescent indicator tube.

4. Press two keys of [GAME EQ] and [DISC 2] simultaneously, mode

is changed over to model and destination display mode and
version display mode.

5. To release from this mode, press the two keys of [GAME EQ]

and [MOVIE EQ] simultaneously.

• This mode can be used for error display of CD section.
Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [CD] key to select “CD”.
3. Press three keys of  x , [GAME EQ] and [DISC 1] simultaneously.

 Error code is not displayed on the fluorescent indicator tube.

• This mode can run the CD sled motor freely. Use this mode, for

instance, when cleaning the optical pick-up.

Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [CD] key to select “CD”.
3. Press three keys of x , [GAME EQ] and Z simultaneously.
4. When the CD service mode is activated, the message

“TRAVERS ON” is displayed on the fluorescent indicator tube.

5. Press the M key, optical pick-up move to outside track and

the message “SLED OUT” is displayed on the fluorescent
indicator tube.

6. Press the m key, optical pick-up move to inside track and

the message “SLED IN” is displayed on the fluorescent
indicator tube..

7. Press the [MOVIE EQ] key, traverse ON/OFF is changed over.

• Number of repeat for CD playback is 5 times when the repeat

mode is “REPEAT”. This mode is used to enables CD to repeat
playback for limitless times.

Procedure:
1. Press the [POWER] key to turn the power ON.
2. Press the [CD] key to select “CD”.
3. Press three keys of  x , [GAME EQ] and  G  (RV20) or  gG

(RV50/RV60) simultaneously.