Test Mode - Sony MEX-BT5000 Service Manual

SERVICE MODE
The version of each microcomputer is displayed. The firmware can
be updated.
1. Version Display
Procedure:
1. Power supply of the set is turned off.
2. Press the [4] t [5] t [6] ([6] is pressed for two seconds)
button of the set sequentially, and enter the service mode.
3. The version of each microcomputer confirmation screen is
displayed.
4. Press the [OFF] button of the set, and release the service mode.
2. The Version Up of the Firmware
To secure the connectivity with the new cellular phone etc. put on
the market after this machine is put on the market, the upgrade in
service is done.
Procedure:
1. The USB memory is prepared, and the firmware is downloaded
to the USB memory. (The USB memory is a thing to prepare
the one of about 64MB made of SONY POCKET BIT.)
2. Power supply of the set is turned off.
3. Press the [4] t [5] t [6] ([6] is pressed for two seconds)
button of the set sequentially, and enter the service mode.
4. Wait for 1 minute after executing step 3, the set is connected
with the USB memory with connected the USB cable (Part.
No. J-2502-103-1).
5. Wait for 1 minute (time untill access LED of USB memory
disappears) after executing step 4, push the joystick for two
seconds of the set, and the version up confirmation screen is
displayed.
6. Select "Yes" by using the UP/DOWN of joystick, and confirm
the displayed version number, and push the joystick.
7. The version up is executed. When the version up ends, reset is
automatically done, and usual screen of power off state is
displayed.
MEX-BT5000
SECTION 4

TEST MODE

DIAG MODE
Mode that memorizes reset frequency and operating time, etc. in
nonvolatile memory, and reads it.
Procedure:
1. Turn off the setting of the bluetooth signal, and power supply
is turned off.
2. Press the [4] t [5] t [4] ([4] is pressed for two seconds)
button of the set sequentially, and enter the DIAG mode.
3. Following information is displayed when operating it according
to Fig.1.
Reset frequency
Frequency to which [RESET] button is pressed and
frequency of POWER ON RESET when power supply is
turned on.
Software reset when releasing test mode is not counted.
Number of maximum counts: 254 times.
Reset frequency with watchdog timer
Reset frequency with watchdog timer.
Number of maximum counts: 254 times.
Number of connected slave units
The number of an external connection of the SONY BUS
slave unit is memorized by 3 histories or less.
The SONY BUS slave unit that becomes an object is CD
slave, MD slave, and undefined slave.
Connected number in test mode is off the subject.
Operating time
Time that the set is operating (Every hour) is counted.
Operating time in test mode is off the subject.
Time of maximum counts: 65534 hours.
CD error information
CD mechanism error information in the head unit is
memorized by 3 histories or less.
The memorized content is error information, a track kind,
and operating time (Every hour).
Error in test mode is off the subject.
Amplifier IC with built-in power supply error information
Information on the OFFSET/FAILURE error with
amplifier IC with built-in the power supply is memorized
by 3 histories or less.
The memorized content is error information and operating
time (Every hour).
OFFSET/FAILURE error in test mode is off the subject.
4. Press the [OFF] button of the set, and release the DIAG mode.
Fig.1 Method of operating DIAG mode
Joystick to right Joystick to left
01 Reset frequency
Joystick to right Joystick to left
02 Reset frequency with watchdog timer
Joystick to right Joystick to left
031 Number of connected slave units (History 1)
Joystick to up
Joystick to down
032 Number of connected slave units (History 2)
Joystick to up
Joystick to down
033 Number of connected slave units (History 3)
Joystick to right Joystick to left
04 Operating time
Joystick to right Joystick to left
051 CD error information (error content + error detailed) (History 1)
Joystick to up Joystick to down
052 CD error information (track kind + operating time) (History 1)
Joystick to up Joystick to down
053 CD error information (error content + error detailed) (History 2)
Joystick to up Joystick to down
054 CD error information (track kind + operating time) (History 2)
Joystick to up Joystick to down
055 CD error information (error content + error detailed) (History 3)
Joystick to up Joystick to down
056 CD error information (track kind + operating time) (History 3)
Joystick to right Joystick to left
061 OFFSET/FAILURE error (History 1)
Joystick to up Joystick to down
062 OFFSET/FAILURE error (History 2)
Joystick to up Joystick to down
063 OFFSET/FAILURE error (History 3)
Joystick to right Joystick to left
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MEX-BT5000