Test Mode - Sony HCD-NEZ3 Service Manual

HCD-NEZ3/NEZ5
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COLD RESET
* 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 button to turn the power on.
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2. While pressing the button, press the
x
the [VOLUME] knob in the counter-clock wise.
3. The message "RESET" is displayed and the set is reset.
PANEL TEST
* All segments of liquid crystal display are tested, and the version
and released date of the micro computer are displayed.
Procedure:
1. Press the button to turn the power on.
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2. While pressing the [DSGX] button, press the
and turn the [VOLUME] knob in the counter-clock wise.
Then all segments of liquid crystal display are turned on.
3. Press the [DSGX] button, the version and released date of the
micro computer are displayed.
example of display:
1119 V006
Version of micro computer
(In this case, version 006)
released date of micro computer
(In this case, released of November 19)
4. Press the [TUNER/BAND] button, the model name and
distination are displayed.
TE
L 13942296513
example of display:
NE ASIA2
distination
(In this case, Asian model)
model name
(In this case, HCD-NEZXX)
5. Press the [PLAY MODE/TUNING MODE] button, "KEY 0 0" is
displayed on the liquid crystal display, and key test mode in.
Each time a key is pressed, the numerical value corresponding
to each key is displayed on the liquid crystal display.
6. To exit from this mode, perform the "COLD RESET".
TUNER STEP CHANGE-OVER
* Either the 9 kHz step or 10 kHz step can be selected for the
AM channel step.
Procedure:
1. Set the FUNCTION to AM, and press the
the power off.
2. While depressing the [TUNER/BAND] button, press the
3. The message "9K STEP" or "10K STEP" is displayed on the
liquid crystal display, and thus the channel step is changed
over.
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SECTION 4

TEST MODE

button and turn
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button
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button to turn
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button.
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CD ERROR HISTORY
* This mode can be used for CD error history display.
Procedure:
1. Set the FUNCTION to CD.
2. While pressing the [DSGX] button, press the
and turn the [VOLUME] knob in the counter-clock wise.
3. CD error history is displayed on the liquid crystal display. Each
time or
l m M L
is changed.
CD POWER MANEGE
* This mode is for switch the CD power supply on/off. Even if
this state pulls out AC plug, it is held.
Procedure:
1. Press the button to turn the power on.
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2. Set the FUNCTION to CD.
3. Press the button again to turn the power off (standby).
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4. While pressing the
CD u
5. If turns power on and display "CD POWER", then display
"ON" or "OFF".
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co
.
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button
CD u
button is pressed, CD error history
button, press the button.
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