Sony FD Trinitron KV-14LT1B Service Manual page 6

FE-2 SELF DIAGNOSTIC SOFTWARE
The identification of errors within the FE-2 chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of
one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous flashing LED) and
then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device number will be
displayed through the LED (Series of flashes which must be counted) See table 1., non fatal errors are reported using this method.
Each time the software detects an error it is stored within the NVM. See Table 2.
Table 1
Error Message
No error
Reserved
OCP ( Over Current Protection )
Reserved
No Vertical Sync
Unstable AKB
IC bus clock and/or data lines low at power on
NVM no IIC bus acknowledge at power on
Not Used
Tuner no acknowledge at power on
Not used
Jungle controller no acknowledge at Power ON
Flash Timing Example : e.g. error number 3
StBy LED
JA = AN
How to-enter into Table 2
1. Turn on the main power switch of the TV set and enter into the
'Stanby Mode'.
2. Press the following sequence of buttons on the Remote
Commander.
(ON SCREEN (DIGIT 5)
DISPLAY)
(VOLUME -) (Ty)
3. The following table will be displayed indicating the error count.
Table 2
ERROR MENU
E02
E03
E04
E05
E06
E07
E08
E09
E10
E11
oooo0o0o0o0c00c°o°o
WORKING
TIME
HOURS
MINUTES
Note: To clear the error count data press '80' on the Remote
commander.