Test Mode - Sony CMT-CNEZ3 Service Manual

HCD-NEZ3/NEZ5
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
4. Press the [TUNER/BAND] button, the model name and
distination are displayed.
example of display:
NE ASIA2
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
l m
Version of micro computer
(In this case, version 006)
released date of micro computer
(In this case, released of November 19)
distination
(In this case, Asian model)
model name
(In this case, HCD-NEZXX)
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".
button
CD u
button is pressed, CD error history
button, press the button.
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