Sony HCD-DZ7T Service Manual page 25

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8. Volume Test
Procedure:
?/1
1. Press the
button to turn the power on.
2. Press three buttons . , H and > simultaneously.
3. The message " MEASURE" is displayed.
4. When the VOLUME control is turned in the direction of (+),
the message "VOLUME MAX" is displayed.
5. When the VOLUME control is turned in the direction of (–),
the message "VOLUME MIN" is displayed.
6. Press the MUTING button on the remote commander.
7. The message "VOL N" is displayed and VOLUME control
is normal.
8. Press the MUTING button on the remote commander again.
9. The message "VOL M/N" is displayed and VOLUME control
is "MAX" and "MIN".
10. To exit from this mode, press the
off, the message "COLD RESET" is displayed.
9. Protection Factor (SD Detection/DC Detection)
Identification Test Mode
When an error is detected, the FL tube alternately displays
"PROTECTOR h PUSH POWER".
?/1
Press the
button.
r
* Buttons other than the
"STANDBY" blinks three times on the FL tube.
r
The protection release state (POWER OFF) is established.
(No FL tube display)
r
?/1
Press the
button.
The power to the system turns on, and the normal operation is
established. (Restore)
During the protection state:
1. If the AC plug is connected or disconnected during the
protection state, the protection state is released, and the normal
operation is established. (The protection state is not
maintained.)
2. The protection factor is displayed by pressing the
FUNCTION , A and > buttons at the same time during
the protection state
(during the "PROTECTOR h PUSH POWER" display).
k When SD is detected: Repeats
"SD DETECT h PUSH POWER".
k When DC is detected: Repeats
"DC DETECT h PUSH POWER".
PL: SD detection
When the "L" output from the SD (shutdown) port on the S-
MASTER POWER Driver is detected, the power system other
than that of the FL tube is turned off, and the protection state
is established.
DC detection
When the "L" output from the power/speaker error detection
circuit (DC detection port) is detected for two seconds
continually, the power system other than that of the FL tube is
turned off, and the protection state is established.
?/1
button to turn the set
?/1
button are invalid.
10. Automatic Acoustic Field Calibration Microphone
Test Mode
Procedure:
1. Press the ?/1 button to turn the power on.
2. Press the FUNCTION button to set the function " DVD".
3. While pressing the X and A buttons simultaneously, turn
the VOLUME control in the direction of (+) .
4. Insert ECM-AC2 supplied as an accessory into the AUDIO
IN/MIC 1/A.CAL MIC jack.
5. Confirm that the following are shown on the display panel.
1 The JACK inserted/non-inserted detection display and the
STEREO/MONO detection display.
Content of display
NON
ST
MN
J A C K
6. To exit from this mode, press the ?/1 button to turn the
power off.
11. Color System Change-over
(Singapore and Thai models)
It is a mode to switch the color system (PAL/NTSC).
Procedure:
1. Press the ?/1 button to turn the power on
2. Press the FUNCTION button to set the function "DVD".
3. Press the ?/1 button to turn the power off.
4. While pressing the X button, press the ?/1 button
simultaneously.
5. Each time you perform this operation the color system toggles
between PAL and NTSC. "NTSC" lights up in the front display
when "NTSC" is selected.
HCD-DZ7T
Ver. 1.1
Discriminant state
Not detected
STEREO
MONO
* * *
1
25

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