Diagnosis Function - Sony CDX-GT21W Service Manual

CDX-GT21W/GT210/GT260/GT260S
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 > . m
/SEEK + or
Reset count display
0 1
Reset count by watchdog timer display
0 2
Number of connected units display
0 3 1
Operating hours display
0 4
CD error information display
0 5 1
OFFSET/FAILURE error display
0 6 1 X X X X X
16
SECTION 3

DIAGNOSIS FUNCTION

keys.
/SEEK –
X X
X X
X X X
X X X X
X X
4. Contents of each display mode
4-1. Reset count display mode
0 1 X X
Reset count
(in hexadecimal format)
Diag code
01: Reset count
4-2. Reset count by watchdog timer display mode
0 2 X X
Reset count
(in hexadecimal format)
Diag code
02: Number of resets by watchdog timer
4-3. Number of connected units display mode
0 3 1 X X X
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 [2] or [1] keys
during the number of connected units display mode.
No. of connected units history 1 (latest) display
0 3 1
No. of connected units history 2 display
0 3 2
No. of connected units history 3 display
0 3 3
4-4. Operating hours display mode
0 4 X X X X
Operating hours
(in hexadecimal format)
Diag code
04: Operating hours
X X X
X X X
X X X