Diagnosis Function - Sony CDX-GT71W Service Manual

CDX-GT71W/GT710/GT760
Description of the Diagnostics function:
1. Setting the Diag display mode
With the power off, press the [4] button, [5] button, and [4] button
on the set body or the remote control (for more than 2 seconds)
in turn.
2. Canceling the Diag display mode
During the Diag function mode, press the [OFF] button.
3. Initial display in the Diag display mode.
Just when the Diag mode is entered, "reset count" is displayed.
The display mode is switched by each rotation of
M >
SEEK +/ or SEEK – /
Reset count display
01
Reset count by watchdog timer display
02
Number of connected units display
03 1
Operating hours display
04
CD error information display
05 1
OFFSET/FAILURE error display
06 1XXXXX
22
SECTION 4

DIAGNOSIS FUNCTION

. m keys.
DIAG
XX
DIAG
XX
DIAG
XXX
DIAG
XXXX
DIAG
XX
DIAG
4. Contents of each display mode
4-1. Reset count display mode
DIAG
01 XX
Reset count
(in hexadecimal format)
Diag code
01: Reset count
4-2. Reset count by watchdog timer display mode
DIAG
02 XX
Reset count
(in hexadecimal format)
Diag code
02: Number of resets by watchdog timer
4-3. Number of connected units display mode
DIAG
03 1 XXX
Show the number of connected units for
CD-C, MD-C and XM respectively from
the rightmost (in hexadecimal format).
Recency of information
1-3: 1 represents the latest.
Diag code
03: Number of connected unit.
The display mode is switched by each rotation of [4/GP/ALBM+] or
[3/GP/ALBM--] keys during the number of connected units display
mode.
No. of connected units history 1 (latest) display
03 1
No. of connected units history 2 display
03 2
No. of connected units history 3 display
03 3
DIAG
XXX
DIAG
XXX
DIAG
XXX