The Blinking Led Procedure - Philips L04E Service Manual

EN 14 5.
Table 5-3 Error codes overview
Error Device
0 Not applicable
1 Not applicable
2 Not applicable
3 Not applicable
4 Tuner UA1316/A
5 Not applicable
6 I2C bus
7 Not applicable
8 Not applicable
9 24C16
10 Tuner
11 TDA6107/A
12 SDA9488X
13 Not applicable
14 Not applicable
15 TDA9178T/N1
16 TDA9887
17 IBO Zapper
18 IBO Zapper
19 TDA1200
20 TDA1200
Note: Errors 7, 8, 13, 14 are not applicable.
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 activated, the LED will blink the contents of
the error-buffer:
•
When all the error-codes are displayed, the sequence
finishes with an 'on' LED blink of 1.5 seconds,
•
The sequence starts again.
Example of error buffer: 12 9 6 0 0
After activating SDM, the following occurs:
•
1 long 'on' 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 'on' 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 description, see the "Customer Service Mode,
Service Default mode" and "Service Alignment Mode" sections.
L04E AB Service Modes, Error Codes, and Fault Finding
Error description
No Error
X-Ray / over-voltage protection (US only)
High beam (BCI) protection
Vertical guard protection
I2C error while communicating with 2nd tuner
+5v protection
General I2C error
-
-
I2C error while communicating with the EEPROM
I2C error while communicating with the PLL tuner
Black current loop instability protection
I2C error while communicating with the PIP processor
-
-
I2C error while communicating with LTI module
I2C error while communicating with PIP_Demodulator
No Communication possible with IBO Zapper module
General error from IBO Zapper module
I2C error while communicating with SSD stereo sound decoder
I2C error while communicating with video cosmic in Hercules IC
Check item
2411, 2412, 2413, 6404, 6411, 6412.
3404, 7405
3466, 7451, 7452, 7453, 7454
1000, 5010 (PIP Module)
7604, 7605
7200, 3207, 3214
-
-
7601, 3604, 3605
1000, 5001
7330, 3351, CRT
7242 (PIP Module)
-
-
7610
7201
-
-
7200
7200
Diagram
A2
A2
A2
F2
A5
A4
-
-
A5
A3
B1
F1
-
-
H
F2
K
K
A4
A4