Diagnosis Function - Sony CDX-GT72W Service Manual

CDX-GT72W/GT720/GT770
Description of the Diagnostics function:
1. Setting the Diag display mode
With the power off, press the [4] button, [5] button, and [4] but-
ton on 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 [
[ ] keys.
. m
Reset count display
Reset count by watchdog timer display
Number of connected units display
Operating hours display
CD error information display
OFFSET/FAILURE error display
20
SECTION 4

DIAGNOSIS FUNCTION

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