CMT-M80V, HCD-M80 - Sony Audio Service Manual (repair manual). Page 13

13

• 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 the

?/1

key to turn the power ON.

2. Press three keys 

[FUNCTION]

,

z 

REC

 

, and

?/1

simultaneously.

3. The set is reset, and becomes standby state.

• This mode is used to check the liquid crystal display, LED,

destination, model, software version, and key.

Procedure:
1. Press the

?/1

key to turn the power ON.

2. Press three 

[PLAY MODE/TUNING MODE]

,

z 

REC 

, and

[FUNCTION]

 simultaneously.

3. Liquid crystal display and LEDs are all turned on.
4. When you want to enter the version check mode, press the

[PLAY MODE/TUNING MODE]

 keys. The destination and model

are displayed.

5. Each time 

[PLAY MODE/TUNING MODE]

 key is pressed, the

display changes starting from MC version, GC version, ST
version, TA version, TM version, and TC version this order,
and returns to the MC version display.

6. When 

[REPEAT/FM MODE]

 key is pressed while the version

numbers are being displayed except model and destination,
year, month and day of the software creation appear. When

[REPEAT/FM MODE]

 key is pressed again, the display returns to

the software version display. When 

[PLAY MODE/TUNING MODE]

key is pressed while year, month and day of the software creation
are being displayed, the year, month and day of creation of the
software versions are displayed in the same order of version
display.

7. Press the 

[CD SYNCHRO]

 key, and the key check mode is activated.

8. In the key check mode, the liquid crystal display displays “K

0

J0 V

0

”. Each time a key is pressed, “K” value increases.

However, once a key is pressed, it is no longer taken into account.

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

step 2, or disconnect the power cord.

• 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 the

?/1

key to turn the power ON.

2. Press the 

[FUNCTION]

 key to select “CD”.

3. Press three keys 

[REPEAT/FM MODE]

, 

[FUNCTION]

  and

[DSG]

 simultaneously.

4. The message “LOCK” is displayed on the liquid crystal display

and turn the power off automatically, and becomes delivery
mode.

• This mode is used to execute “COLD RESET” and “CD SHIP

(MECHA)” simultaneously.

1. Press the

?/1

key to turn the power ON.

2. Press the 

[FUNCTION]

 key to select “CD”.

3. Press three keys 

[FUNCTION]

, 

[DSG]

, and 

[CD SYNCHRO]

simultaneously.

4. The message “LOCK” is displayed on the liquid crystal display

and turn the power off automatically, and set is reset, then
becomes delivery mode.

• This mode is used to unable to take  sample disc out of tray in

the shop.

Procedure:
1. Press the

?/1

key to turn the power ON.

2. Press the 

[FUNCTION]

 key to select “CD”.

3. While pressing the 

[DSG]

 key, press the

Z

 CD

key.

4. The message “LOCKED” is displayed on the liquid crystal

display and the tray is locked. (Even if pressing the

Z

 CD

key,

the message “LOCKED” is displayed on the liquid crystal
display and  the tray is locked)

6. To release from this mode, while pressing the 

[DSG]

 key, press

the

Z

 CD

key for 5 seconds.

7. The message “UNLOCKED” is displayed on the liquid crystal

display and the tray is unlocked.

Number of repeat for CD playback is 5 times when the repeat mode
is “REPEAT”. This mode enables CD to repeat playback for limitless
times.
Procedure:
1. Press the

?/1

key to turn the power ON.

2. Press the 

[FUNCTION]

 key to select “CD”.

3. Press three keys 

[REPEAT/FM MODE]

, 

[FUNCTION]

 and

z 

REC

  

simultaneously to enter the repeat 5 limit off mode.

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

10 kHz.

Procedure:
1. Press the

?/1

key to turn the power ON.

2. Press the 

[FUCTION]

  key to select “TUNER” and press the

[TUNER AM]

 key to turn the “AM”.

3. Press the

?/1

key to turn the set OFF.

4. While pressing 

[REPEAT/FM MODE]

 key, and press 

the ?/1

key

and the display of  liquid crystal display changes to “AM 9K
Step” or “AM 10K Step”, and thus the channel step is changed
over.

• The color system can be changed over PAL, AUTO or NTSC.
Procedure:
1. Set to the standby state.
2. Press the

l

 

m

and

?/1

buttons simultaneously to change

the color system to PAL, and the message “COLOR PAL” is
displayed on the liquid crystal display.

3. Press the

M

 

L

and

?/1

buttons simultaneously to change

the color system to AUTO, and the message “COLOR AUTO”
is displayed on the liquid crystal display.

4. Press the

x

and

?/1

buttons simultaneously to change the color

system to NTSC, and the message “COLOR NTSC” is displayed
on the liquid crystal display.