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5.6
The Blinking LED Procedure
Using this procedure, you can make the contents of the error
buffer visible via the front LED. This is especially useful when
there is no picture.
When the SDM is entered, the front LED will blink the contents
of the error-buffer:
•
When all the error-codes are displayed, the sequence
finishes with a LED blink of 1.5 seconds,
•
The sequence starts again.
Example of error buffer: 12 9 6 0 0
After entering SDM, the following occurs:
•
1 long blink of 5 seconds to start the sequence,
•
12 short blinks followed by a pause of 1.5 seconds,
•
9 short blinks followed by a pause of 1.5 seconds,
•
6 short blinks followed by a pause of 1.5 seconds,
•
1 long blink of 1.5 seconds to finish the sequence,
•
The sequence starts again at 12 short blinks.
5.7
Protections
If a fault situation is detected, an error code will be generated;
and, if necessary, the television set will go into protection
mode. Blinking of the red LED at a frequency of 3 Hz indicates
the protection mode. In some error cases, the microprocessor
does not put the set in protection mode. The error codes of the
error buffer and the blinking LED procedure can be read via the
Service Default Menu (SDM), or via ComPair.
To get a quick diagnosis the chassis has three service modes
implemented:
•
The Customer Service Mode (CSM).
•
The Service Default Mode (SDM).
•
The Service Alignment Mode (SAM).
For a detailed mode description, see the relevant sections.
5.8
Fault Finding and Repair Tips
Notes:
•
It is assumed that the components are mounted correctly
with correct values and no bad solder joints.
•
Before any fault finding actions, check if the correct options
are set.
5.8.1
NVM Editor
In some cases, it can be handy if one directly can change the
NVM contents. This can be done with the "NVM Editor" in SAM
mode. In the next table, the default NVM values are given.
Service Modes, Error Codes, and Fault Finding
L04L AA
Table 5-4 NVM default values for LATAM-region
Item
EW (EW Width)
PW (EW Parabola Width)
HS (Horizontal Shift)
HP (Horizontal Parallelogram)
HB (Horizontal Bow)
UCP (EW Upper Corner Parabola)
LCP (EW Lower Corner Parabola)
TC (EW Trapezium)
VS (Vertical Slope)
VA (Vertical Amplitude)
SC (S-Correction)
VSH (Vertical Shift)
VX (Vertical Zoom)
VSL (Vertical Scroll)
VL (Vertical Linearity)
BLOR (Black Level Offset - Red)
BLOG (Black Level Offset - Green)
AGC (AGC Takeover)
OIF (IF-PLL Offset)
AGC10 (AGC 10)
H60 (60 Hz Horizontal Shift)
60 Hz Vertical Amplitude
YD & CL
RGB amplitude for full teletext mode
NVM_TABLE_VERSION
OPTION_TABLE_VERSION
CVI_BLOR
CVI_BLOG
TXT Brightness
V60 offset (60Hz Vertical Amplitude)
FOAB, CHSE
SPR, WS
VMA, SVM
NVM_SOC_SMD
CCC-PGR
CCC-PGG
CCC-PGB
NVM_FMWS
NVM_ASD_SC1_THR
NVM_CRYSTALALIGN
Last Brightness (VID PP others)
Last Color (VID PP others)
Last Contrast (VID PP others)
Last Sharpness (VID PP others)
Last Hue (VID PP others)
Last Color Temperature
(VID PP others)
White-D Cool Red
White-D Cool Blue
White-D Normal Red
White-D Normal Green
White-D Normal Blue
White-D Warm Red
White-D Warm Blue
Last Volume
Last Balance
Last Treble (AUD PP others)
Last Bass (AUD PP others)
5.
EN 31
Default values (dec)
19
37
37
37
37
37
37
20
10
10
10
10
10
10
21
26
26
26
26
26
26
22
31
31
31
31
31
31
23
31
31
31
31
31
31
24
30
30
30
30
30
30
25
40
40
40
40
40
40
26
26
26
26
26
26
26
27
37
37
37
37
37
37
28
30
30
30
30
30
30
29
30
30
30
30
32
32
30
26
26
26
26
26
26
31
25
25
25
25
25
25
32
32
32
32
32
32
32
33
32
32
32
32
32
32
34
29
29
29
29
29
29
35
19
19
19
19
19
19
36
20
20
20
20
20
20
37
36
36
36
36
36
36
38
1
1
1
1
1
1
39
9
9
9
9
9
9
42
32
32
32
32
48
48
43
87
87
87
87
87
87
46
8
8
8
8
8
8
60
22
22
22
22
22
22
61
7
7
7
7
7
7
62
21
21
21
21
21
21
63
15
15
15
15
15
15
64
23
23
23
23
23
23
66
-2
-2
-2
-2
-2
-2
139
3
3
3
3
3
3
140
0
0
0
0
0
0
141
50
50
50
50
50
50
142
3
3
3
3
3
3
143
31
31
31
31
31
31
144
31
31
31
31
31
31
145
31
31
31
31
31
31
149
3
3
3
3
3
3
150
16
16
16
16
16
16
208
63
63
63
63
63
63
264
50
50
50
50
50
50
265
50
50
50
50
50
50
266
50
50
50
50
50
50
267
50
50
50
50
50
50
268
0
0
0
0
0
0
269
50
50
50
50
50
50
294
-3
-3
-3
-3
-3
-3
296
5
5
5
5
5
5
297
26
26
26
26
26
26
298
32
32
32
32
32
32
299
27
27
27
27
27
27
300
2
2
2
2
2
2
302
-6
-6
-6
-6
-6
-6
343
20
20
20
20
20
20
344
50
50
50
50
50
50
345
85
85
85
85
80
80
346
173 173 173 173 173 173
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