HCD-GPZ6, HCD-GPZ7 (serv.man2) - Sony Audio Service Manual (repair manual). Page 15

15

•

This mode is used to check operations of Amplifier.

1. Press the

I/

1

key to turn the power ON.

2. Press three keys of [DSGX] and [DISPLAY] and [PLAY MODE]

simultaneously.

3. When the COMMON test mode is activated, “PLAY SLEEP”

blinks on the fluorescent indicator tube.

4. Turn the [BASS]  knob counterclockwise, “TONE MIN” is

displayed on the fluorescent indicator tube. Turn the [BASS]
knob clockwise, “TONE MAX” is displayed on the fluorescent
indicator tube.
Turn the [TREBLE]  knob clockwise or counterclockwise,
“TONEFLAT” is displayed on the fluorescent indicator tube.
Turn the [VOLUME] knob counterclockwise, “VOL MIN” is
displayed on the liquid crystal display. Turn the [VOLUME]
knob clockwise, “VOL MAX” is displayed on the fluorescent
indicator tube.

5. To release this mode, press the

I/

1

key.

•

This mode is used to check the fluorescent indicator tube, LED,
model, destination, software version and key.

1. Press the

I/

1

key to turn the power ON.

2. Press three keys of [DSGX],  [DISPLAY]  and  [FUNCTION]

simultaneously.

3. Fluorescent indicator tube is all turned on and each LED

of

CD 

u

, [TUNER/BAND],

TAPE 

B

, [DSGX] and [STANDBY]

blinks.

4. When you want to enter the model, destination and version display

mode, press the [PLAY MODE] key. The model and destination
are displayed alternately on the fluorescent indicator tube.

5. Each time [PLAY MODE] key is pressed, the display changes

starting from MC version, GC version, CD version, CDD
version, CDMA version, CDMB version, BDA version, BDB
version, ST version, TA version, TM version, and TC version
this order, and returns to the MC version display on the
fluorescent indicator tube.

6. Press the [CD SYNC] key, the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays

“K 0 J0 V0”.

8. Each time a button is pressed, “K” value increases. However,

once a button is pressed, it is no longer taken into account.
All keys are pressed, display becomes “K26”.

9. “V” value increases 1, 2, 3 ... if turn the [VOLUME]  knob

clockwise, or it decreases 0, 9, 8 ... if turn the knob
counterclockwise
“J” value increases like 1, 2, 3 ... if turn the [BASS] or [TREBLE]
or JOG knob clockwise, or it decreases like 0, 9, 8 ... if turn
the knob counterclockwise.

10. When [FUNCTION] key is pressed while the version numbers

are being displayed except model and destination, year, month
and day of the software creation display. When [FUNCTION]
key is pressed again, the display returns to the software version
display. In this state, each time [PLAY MODE] key is pressed,
the year, month and day of creation of the software versions
are displayed on the fluorescent indicator tube in the same
order of version display.

11. To release this mode, press three keys in the same manner as

step 2, or disconnect the power cord.

•

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.

1. Press the

I/

1

key to turn the power ON.

2. Press three keys of

I/

1

,  [DISPLAY]  and

x

(CD)

simultaneously.

3. The fluorescent indicator tube becomes blank instantaneously,

and the set is reset.

•

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.

1. Press the

I/

1

key to turn the power ON.

2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DISPLAY],

Z

and

M L

simultaneously.

4. After the “STANDBY” display blinks, “LOCK” is displayed

on the fluorescent indicator tube, and the ship mode is set.

•

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.

1. Press the

I/

1

key to turn the power ON.

2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DSGX],

x

(CD) and [DISPLAY] simulta-

neously.

4. After the “STANDBY” display blinks, “LOCK” is displayed

on the fluorescent indicator tube, and the ship mode is set.

•

This mode is used to unable to take sample disc out of disc

slot in the shop.

1. Press the

I/

1

key to turn the power ON.

2. Press the [FUNCTION] key to select “CD”.
3. While pressing the

Z

key,  press the

x

(CD) key for

5 seconds.

4. The message “LOCKED” is displayed on the fluorescent

indicator tube and the disc slot is locked. (Even if pressing
the

Z

key,  the message “LOCKED” is displayed on the

fluorescent indicator tube and the disc slot is locked)

5. To  release from this mode, pressing the

Z

key,  press

the

x

(CD) key for 5 seconds.

6. The message “UNLOCKED” is displayed on the fluorescent

indicator tube and the disc slot is unlocked.

•

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

for instance, when cleaning the optical pick-up.

1. Press the

I/

1

key to turn the power ON.

2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [ENTER],

M  L

and  [DISPLAY]

simultaneously.

4. Press the

M L

key to move the optical pick-up to outside

track, or press the

l m

key to inside track.

5. Press the

x

(CD) key, “LD OFF” is displayed and laser diode

is turned off. Each time

x

(CD) key is pressed, laser diode

ON/OFF switch is performed.

6. To release this mode, press the

I/

1

key.