Sony HCD-GTZ4 Service Manual page 11

TUNER STEP CHANGE
(Except AEP model)
The step interval of AM channels can be toggled between 9 kHz
and 10 kHz. This mode is not available for AEP model.
Procedure:
1. Press [ STANDBY] button to turn on the system.
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2. Press [TUNER/BAND] button repeatedly to select the "AM".
3. Press [ STANDBY] button to turn off the system.
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4. Press [ENTER] and [
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ly. The system turns on automatically. The message "AM 9K
STEP" or "AM 10K STEP" appears on the fl uorescent indica-
tor tube and thus the channel step is changed.
CD SHIP MODE (WITH MEMORY CLEAR)
This mode moves the optical pick-up to the position durable to
vibration and clears all data including preset data stored in the EE-
PROM to initial conditions during the next AC-In. Use this mode
when returning the set to the customer after repair.
Procedure:
1. Press [ STANDBY] button to turn on the system.
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2. Press [CD] button to select CD function.
3. Press [x], [DISC 1] and [
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ously. The system turns off automatically.
4. After the "STANDBY" blinking display fi nishes, a message
"MECHA LOCK" is displayed on the fl uorescent indicator
tube and the CD ship mode is set.
5. Unplug the power supply cable.
CD SHIP MODE (WITHOUT MEMORY CLEAR)
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 [ STANDBY] button to turn on the system.
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2. Press [CD] button to select CD function.
3. Press [DISC SKIP/EX-CHANGE] and [
tons simultaneously. The system turns off automatically.
4. After the "STANDBY" blinking display fi nishes, a message
"MECHA LOCK" is displayed on the fl uorescent indicator
tube and the CD ship mode is set.
5. Unplug the power supply cable.
CD TRAY LOCK MODE
This mode let you lock the disc tray. When this mode is activat-
ed, the disc tray will not open when [Z OPEN/CLOSE] button
or [DISC SKIP/EX-CHANGE] button is pressed. The message
"LOCKED" will be displayed on the fl uorescent indicator tube.
Procedure:
1. Press [ STANDBY] button to turn on the system.
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2. Press [CD] button to select CD function.
3. Press [x] and [Z OPEN/CLOSE] buttons simultaneously and
hold down until "LOCKED" or "UNLOCKED" displayed on
the fl uorescent indicator tube (around 5 seconds).
FACTORY PRESET
This mode is use to load all the factory use preset frequencies
into FM 1-FM 20 and AM 1-AM 10. Originally, frequency of FM
1-FM 20 and AM 1-AM10 are set to the minimum frequency.
Procedure:
1. Press [ STANDBY] button to turn on the system.
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2. Press [SURROUND], [x] and [DISC 1] buttons simultane-
ously and the message "FACTORY" appears on the fl uores-
cent indicator tube. The function is changed to TUNER auto-
matically.
STANDBY] buttons simultaneous-
STANDBY] buttons simultane-
STANDBY] but-
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HCD-GTZ4/GTZ4i/GTZ5
VACS DISPLAY
This mode is used to check the VACS level.
Procedure:
1. Press [ STANDBY] button to turn on the system.
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2. Press [ERASE], [x] and [ENTER] buttons simultaneously.
3. The fl uorescent indicator tube displays "VACSx". "x" repre-
sents Conventional VACS level (Triggered by signal level).
4. To release from this mode, do the step 2 again.
METER SWITCH TOUCH COUNT DISPLAY
This mode is used to display the total count of meter pointer touch
initial switch and max switch.
Procedure:
1. Press [ STANDBY] button to turn on the system.
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2. Press [x], [ENTER] and [DISPLAY] buttons simultaneously.
3. The fl uorescent indicator tube displays "IxxxxxMyyyyy".
"I" represents the Initial Switch touch.
"xxxxx" represents the total count of Initial Switch touch.
(Maximum Value of "xxxxx" = 65535)
"M" represents the Max Switch touch.
"yyyyy" represents the total count of Max Switch touch.
(Maximum Value of "yyyyy" = 65535)
4. To release from this mode, do the step 2 again. The fl uorescent
indicator tube displays "MODE OUT".
METER TEST MODE
This mode is used to check the meter device.
Procedure:
1. Press [ STANDBY] button to turn on the system.
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2. Press [x], [ENTER] and [METER MODE] buttons simulta-
neously. The fl uorescent indicator tube displays "TST MODE
IN".
3. Meter Backlight LEDs, Meter Pointer LEDs, Power Illumina-
tor LEDs and fl uorescent indicator tube are lighted up.
4. When you want to perform count total step from Initial Switch
to Max Switch operation mode, press [TUNING + > M]
button. The meter pointer will move from Initial Switch to
Max Switch and fi nally move back to the middle position. The
total step count information appears on the fl uorescent indica-
tor tube. "xxx STP yy" is shown.
"xxx" represents the total step.
(Value of "xxx" should between 430 steps to 470 steps)
"yy" represents the status of total step count.
(If total step between 430 steps to 470 steps, "yy" is OK, Else
"yy" is NG)
5. When you want to perform count total step from Max Switch
to Initial Switch operation mode, press [TUNING – . m]
button. The meter pointer will move from Max Switch to Ini-
tial Switch and fi nally move back to the middle position. The
total step count information appears on the fl uorescent indica-
tor tube. "xxx STP yy" is shown.
"xxx" represents the total step.
(Value of "xxx" should between 430 steps to 470 steps)
"yy" represents the status of total step count.
(If total step between 430 steps to 470 steps, "yy" is OK, else
"yy" is NG).
6. To release from this mode, do the step 2 again. The fl uorescent
indicator tube displays "TST MODE OUT".
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