Monday, January 13, 2014

SONY HCD GT111/GT222/GT444/GT555 - SERVICE MODE-AGING-POWER AMPLIFIER SCHEMATIC


POWER SUPPLY - SCHEMATIC
POWER AMP
CLICK ON THE PICTURES TO MAGNIFY
UNLOCKING THE DISC TRAY
This is to prevent the theft of discs appliances demonstration in stores.
procedure:
1. Press [Power] to turn the unit.
2. Press the [CD] button to select this function.
3. For 5 seconds Press the [Stop] and [Eject] keys together.
4. The "UNLOCKED" message appears and the tray will released.

Note: When "LOCKED" appears, the lock will not be released to disconnect the unit from the [Power] button.
COLD RESET
The cold reset clears all data the device, including those saved in EEPROM, placing the device on your terms.  initials. Run it to return the unit to the consumer.
procedure:
1. Press the [Power] to turn the unit.
2. Press the [Stop] button, [ENTER] and [Power] simultaneously.
3. The message "COLD RESET" appears in the display. After that the display turns off and the device is reset.
METHOD OF DUTY CD
This mode allows you to freely move the sled motor. Use it when you want to clean the optical drive.
procedure:
1. Press the [Power] to turn the unit.
2. Press the [CD] button to select the function.
3. Press the [Stop] button, [METER MODE] and [OPEN / CLOSE] simultaneously.
4. Activates the service mode of the CD. The message "SERVICE MODE "appears on the fluorescent display.
5. The disc is stopped, press the [>>] button to move the the unit for the outermost track and [<<] to the innermost.  The "SLED OUT" or "SLED IN" message appears on the display.
6. To turn the laser, press the [>>|] button. The message "LD ON" or "OFF RB" on the display.
7. To exit this mode, press the [Power].
AGING MODE CD
This mode can be used to check the operation of the CD.  If an error occurs the aging mode will stop and the error status will be displayed. If no error occurs, the aging mode remains repeatedly.
procedure:
1. Press the [Power] to turn the unit.
2. Select the CD function.
3. Place three discs in the tray.
4. Press the [PLAY MODE] button repeatedly to control remote to select "ALL DISCS" mode and then press [REPEAT] repeatedly to select "REPEAT OFF".
5. Press the [Stop] button, [METER MODE] and [DISC SKIP /EX-CHANGE] simultaneously.
6. The aging mode starts.
7. To exit this mode press the [Power] to disconnect the ca-bod and power outlet.