Self Diagnostics - Sony KV-13FM12 Training Manual

Self Diagnostics

The table below shows the number of times the Standby/Timer LED flashes
in sequence before pausing and repeating. The table indicates what will
happen when failures occur while the set is operating.
Standby / Timer LED Diagnosis
Standby/Timer LED Symptom
Blinks
2 times, pauses and Shutdown.
repeats.
4 times, pauses and Shutdown.
repeats.
5 times, pauses and 1. No video
repeats. 2. Sound OK.
Continues to blink No or defective Y/C
once a second. Jungle IC301
communications.
Problem
B+ OCP or H Protect
Vertical Failure (may also be
Horizontal Failure or Power
Supply since loss of either
will cause no vertical.)
White balance failure, weak
picture tube or Low G2
voltage.
No reply from Y/C Jungle IC
(data bus is busy, grounded
or held HIGH) or IK video
path is defective at turn ON.
9
The set will usually act differently from what is shown in the table when it
is powered up with a defect present. However indications will still be
given that can guide you in troubleshooting.
In the case of intermittent problems, you can check the failure status his-
tory by pressing the Display, 5, Vol. – and Power buttons. You will see a
menu that indicates how many times each item has failed. The failure
information is stored in the EEPROM.