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KV-X297
4-4. ERROR MESSAGE
Self diagnostic system operates as follows.
When the microprocessor is unable to receive an
acknowledgement back from the device. the LED
starts flashing according to the table below.
In the case of more than one error in parallel, the blinking
error shows max priority according to the error number (e.g.
error 2 and error 5 appear together. then LED.s show error 2).
ERROR TABLE
ERROR COUNT
I
IC TYPE
I
FUNCTION
1
II
C BUS
I
SDA low
I
2
X24C16
I EPROM
4
I
TDA9145
i
Colour decoder
5
CXA1587
RGB/Jungle
6
I
TDA6612
Sound processor
7
CXD2018
V deflection
8
I
CXA1545
AV switch
11
,
SDA5248
Text
13
I V protection
112C ERROR
I
~5SEC.
I
125 SEC.
I
I V. PROTECTION
t
I I
WAIT
2
SEC
I
I STD-BY
I
t
~
12 SEC I
I
I
STD-BY I
Stand By LED blinking
No 1
K
return
4-5. ERROR 1
2C
BUS DIAGNOSTIC SYSTEM
FOR AE2-B CHASSIS.
For all IC's used in the .-\E 2-B chassis which are necessary
to
obtain picture and sound there is an inbuilt
fc
Bus
diagnostic system.
In the case of no acknowledge bit. LED
A
and LED B
start blinking as shown.
LED
A-I1L-
_
- 3 8 -
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