Philips FTL13U Service Manual page 27

Table 5-1 Error Table
Error Device
1 M24C32
3 SAA4978
4 Supply 5 V
5 Supply 8 V
6 Slow I2C bus blocked Spontaneous blinking error 6
8 TDA932x
13 UV1318/...
14 MSPxxxx
15 UPD64083
18 Fast I2C bus blocked Spontaneous blinking error 18
21 M62320P
26 SAA4992
27 T8F24EF
32 M29W400BT
53 AD9883A
55 DC/DC converter
56 EPLD
76 -
83 TEA6422
Note: Error codes 1, 6, or 18 are protection codes and in this
case, supplies of some circuits will be switched "OFF". Also, in
protection, the LED will blink the number of times equivalent to
the most recent error code.
5.6 The Blinking LED Procedure
5.6.1 Introduction
Via this procedure, you can make the contents of the error
buffer visible via the front LED. This is especially useful for fault
finding, when there is no picture.
When the SDM is entered, the front LED will show (blink) the
contents of the error-buffer. Error-codes > 10 are shown as
follows:
– A long blink of 750 ms (which is an indication of the decimal
digit),
– A pause of 1.5 s,
– "n" short blinks (where "n" = 1 - 9),
– When all the error-codes are displayed, the sequence
finishes with a LED blink of 3 s,
– The sequence starts again.
Example: Error 12 9 6 0 0.
After activation of the SDM, the front LED will show:
– 1 long blink of 750 ms (which is an indication of the decimal
digit) followed by a pause of 1.5 s,
– 2 short blinks followed by a pause of 3 s,
– 9 short blinks followed by a pause of 3 s,
– 6 short blinks followed by a pause of 3 s,
– 1 long blink of 3 s to finish the sequence,
– The sequence starts again.
Note: If errors 1, 6, or 18 occur, the LED always gives the last
occurred error even if the set is NOT in service mode.
5.6.2 How to Enter
Use one of the following methods:
• Enter the SDM (only via soldering pads marked "SDM" on
SSP). The blinking front LED will show the entire contents
of the error buffer (this works in "normal operation" mode
and in "protection" mode).
• Transmit the commands "MUTE" - "062500" - "OK" with a
normal RC. The complete error buffer is shown. Take
Service Modes, Error Codes, and Fault Finding
Description
NVM, spontaneous blinking error 1
PICNIC
5V protection
8V protection
HIP High-end Input Processor
Tuner protection
ITT sound processor
3D Comb
I/O Expander
Falconic
Eagle
Flash Ram (EPG)
AD converter 2fh input
One of the voltages is not ok + protection error
EPLD error
Audio DC protection
Source select matrix audio
FTL13U AA & AB
Def. item Def. Module indication
7011 Control
7713 Feature Box
+5V Supply
+8V Supply
Slow I2C Blocked
7323 Chroma IF IO
1T01 Tuner
7A02 Audio module
7B00 Video controller
Fast I2C Blocked
7P56 Video Dual Screen
7718 +3V (FBX) Supply
7724 +3V (FBX) Supply
7012 EPG Memory
7L01 HD
Supply
7V01 Video control
- -
7I17 Audio Source Select
notice that it takes some seconds before the blinking LED
starts.
• Transmit the commands "MUTE" - "06250x" - "OK" with a
normal RC (where "x" is a number between 1 and 5). When
x= 1 the last detected error is shown, x= 2 the second last
error, etc.... Take notice that it takes some seconds before
the blinking LED starts.
• "DIAGNOSE X" with the DST-emulation feature of
ComPair (where "x" is a number between 1 and 5). When
x= 1 the last detected error is shown, x= 2 the second last
error, etc.... When x = 0 all errors are shown.
5.7 Protections
5.7.1 Introduction
This chassis has only one microprocessor (OTC), which
remains active during Standby. This because power of the
microprocessor and the attached memory chip set is coming
from the 3V3 supply, which is derived from the 5V Standby-
circuitry. Therefore, in both Power-on as in Standby "power-off"
mode, the microprocessor is connected to this power supply.
If a fault situation is detected, an error code will be generated
and if necessary, the set is put in protection mode. The
protection mode is indicated by the blinking of the front LED at
a frequency of 3 Hz (or by a coded blinking in special cases).
The content of the error buffer can be read via the service menu
(SAM), the blinking LED procedure or via DST/ComPair.
To get a quick diagnosis, this chassis has three service-modes
implemented:
• The Customer Service Mode (CSM).
• The Service Default Mode (SDM). Start-up of the set in a
predefined way.
• The Service Alignment Mode (SAM). In this mode, items
of the set can be adjusted via a menu.
You can enter both SDM and SAM modes via the "service
pads" on the SSP, via an RC-transmitter, or via ComPair. It is
not possible to enter the SAM in "standby"; the TV has to be in
"normal operation" mode.
The "Protection Diagram" shows the structure of the protection
system. See diagram below.
5. EN 27
Diagram
B5a
B3a
B5a
B5a
B2
B13
B6a
B11
B15b
B3b
B3c
B5a
B19c
B19d,f
A
B14d