Self Diagnosis Function - Sony TRINITRON KV-EF29N6A Service Manual

KV-EF29N6A/EF29N6B/EF29N9P
If no acknowledgement is returned from a device which is turned "ON", the device has a problem.
In this case, one of the LED's responding to the problem device will flicker a defined number of times.
The flickering frequency responding to each failed device is shown below.
Board name
Ref. No.
Device
NONVOLATILE
MEMORY
(ST24C08FB6)
Flickering
Frequency
All the devices are checked one after another from the left on the table.
If an error is found, the responding LED will start flickering.
So, if more than 2 devices are failed, the one on the left side will start flickering first.
RM-882

SELF DIAGNOSIS FUNCTION

A Board
A Board
IC003 IC1201
AV SWITCH
(CXA1855S)
2
1
SECTION 4
A Board
A Board
IC104 IC206
SURROUND
MAIN Y/C
(CXA2050S) PROCESSOR
(TDA8424)
3
– 30 –
6