Sony Trinitron KV-29F3A - SELF-DIAGNOSTIC SOFTWARE; BE-3 D Chassis Error Identification

KV-29F3
4-3. BE-3D SELF DIAGNOSTIC SOFTWARE
The identification of errors within the BE-3D chassis is triggered in 1 of 2 ways :- 1: Bus busy or 2: Device failure to respond to
TIC. 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 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 with this method.
Table 1
LED
ERROR ERROR
COUNT
No error 00 ML bus Clock low time out after data send (run-time ae
Not allowed (may be confused with Sircs response 9 failure)
flash!) M3L bus Clock low time out after data send (at power 26
Protection circuit trip < ANY TIME > 02 up check)
lIG SCL LOW < POWER UP ONLY > 03 Gian 27
lI SCA LOW < POWER UP ONLY > 04
lIC SDA & SCL LOW < POWER UP ONLY > 05
Flash Timing Example : e.g. error number 3.
Jungle/Chroma controller no acknowledge < POWER 0
6
UP ONLY >
Stby LED
Video Switch no acknowledge < POWER UP ONLY > 07 Gi on éiv
Tuner no acknowledge 08 ly UL] HT
MSP no acknowledge 09 On, OF
NVM no acknowledge 10
M3L TXD Low < POWER UP ONLY > an
M3L RXD Low < POWER UP ONLY > 12
M3L ENABLE Low < POWER UP ONLY > 13
MSL TXD & RXD Low < POWER UP ONLY > 14
Compact Text test fail < POWER UP ONLY > 15
AV switch cannot power on reset 16
< Chassis Initialisation >
Cannot initialise jungle (after initial power on checked 17
out OK) - < Chassis Initialisation >
NVM acknowledge fail after initialisation (STBY +5V- 18
same as micro!)
Multiple devices with no acknowledge < POWER UP 19
ONLY >
Compact text run-time failure < MAY NOT BE FATAL- 20
DISPLAY ON ERROR READER >
AV SWITCH response failure after power up check 24
(+9V test)
JUNGLE/CHROMA controller response failure after 20
power up check (+9V test)
Compact text does not respond (+5V test) 23
MSP run-time failure < MAY NOT BE FATAL-DISPLAY 24
ON ERROR READER >
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