Philips 32PFL5604/77, Service Manual

Page: 15 / 67

Service Modes, Error Codes, and Fault Finding EN 15 TCM3.2L LA 5.
2009-Jun-19
5.4.4 Error Codes
Take notice that some errors need several minutes before they
start blinking or before they will be logged. So in case of
problems wait 2 minutes from start-up onwards, and then
check if the front LED is blinking or if an error is logged.
Table 5-2 Layer 1 code overview
Table 5-3 Layer-2 code overview
5.5 The Blinking LED Procedure (LAYER-2 codes)
5.5.1 Introduction
The software is capable of identifying different kinds of errors.
Because it is possible that more than one error can occur over
time, an error buffer is available that is capable of storing the
last five errors that occurred. This is useful if the OSD is not
working properly.
Errors can also be displayed by the blinking LED procedure.
The method is to repeatedly let the LED pulse with as many
pulses as the error code number, followed by a time period of
1.5 seconds in which the LED is “off”. Then this sequence is
repeated.
E.g. error code 4 will result in four times the sequence LED “on”
for 0.25 seconds / LED “off” for 0.25 seconds. After this
sequence the LED will be “off” for 1.5 seconds. Any RC
command terminates this sequence.
Displaying the entire error buffer
The entire error buffer can be displayed when service mode
“SDM” is entered (by remote control command
062596<MENU>). When in protection, this sequence will not
work, but than LAYER-1 error code should suffice.
In order to avoid confusion with RC signal reception blinking,
this blinking procedure is terminated when a RC command is
received.
5.5.2 How to Activate
Use one of the following methods:
•
Activate the C S M . The blinking front LED will show only
the latest LAYER-1 error.
• Activate the S DM . The blinking front LED will show the
entire contents of the LAYER-2 error buffer.
Code Board
2 SS B
3 Platform supply (12V detection)
Layer 2
error code Error
Description Detection
Method Type Remarks
0 No Error N/A N/A N/A
14 General I
2
C I
2
C Bus Spontaneous
blinking Communication Error
on I
2
C bus
15 Tuner I
2
C Bus Error Log
+ blinking in SDM Communication Error
with Tuner
16 Demodulator I
2
C Bus Error Log
+ blinking in SDM Communication Error
with TDA9886T
17 Audio amplifier I
2
C Bus Error Log
+ blinking in SDM Communication Error
with Audio amplifier
18 NVM EEPROM I
2
C Bus Spontaneous
blinking Communication Error
with EEPROM