Philips ME6 Service Manual page 18

EN 18 5. LC4.31E AA
Table 5-1 Error code overview
Error Error Description
0 No Error
1 Mis-match of TV (Hercules)
SW and Scaler SW
2 +12V from PSU error
2
3 Plasma I C error (only for
plasma sets)
2
4 I C error while
communicating with the
Genesis Scaler
5 +5V protection
2
6 General I C error;
communication between
ADC, analogue tuner, and/or
2
Columbus I C failed
2
7 I C error while
communicating with ADC
2
8 I C error while
communicating with the
Scaler EEPROM
2
9 I C error while
communicating with the
Hercules EEPROM (NVM for
TV).
Remark: when the Hercules
EEPROM is defective, the
Hercules should operate with
its default values.
2
10 I C error while
communicating with the PLL
tuner
2
11 I C error while
communicating with the 3D
combfilter IC-7M00
(Columbus)
2
12 I C error while
communicating with iBoard
uP (only iTV sets)
2
13 I C error while
communicating with the
HDMI decoder IC-7D03 (only
for NAFTA and AP)
14 Read-write error with the
Scaler SDRAM
2
15 I C error while
communicating with the OTC
2
16 I C error while
communicating with EPLD or
Pacific III
2
17 I C error while
communicating with the
Digital Module (only for digital
sets)
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:
• The LED blinks 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.
Any RC5 command terminates this sequence.
Service Modes, Error Codes, and Fault Finding
Check Item Diagram
Software N.A.
versions
PSU A
N.A. N.A.
7801 B7 + B8
7752 B6
1102, 7L01, B1 + B18
7M00 + B19
7L01 B18
7C01 B11
7207 B2
1102 B1
7M00 B19
N.A. N.A.
N.A. N.A.
7B01 B10
7001 T
7N00 B20 +
B21
N.A. N.A.
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 with 12 short blinks.
5.7 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.
5.7.1 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. With this option, single bytes can be changed.
Caution:
• Do not change the NVM settings without
understanding the function of each setting, because
incorrect NVM settings may seriously hamper the
correct functioning of the TV set!
• Do not change the Scaler NVM settings, as this will
hamper the DVI / HDMI functionality of the TV set!
• Always note down the existing NVM settings, before
changing the settings. This will enable you to return to the
original settings, if the new settings turn out to be incorrect.
Table 5-2 NVM editor overview
Hex
.ADR 0x000A
.VAL 0x0000
.Store
Dec Description
10 Existing value
0 New value
Store?