Service Modes, Error Codes and Fault Finding
EN 26 EM5A P/M5.
• ComPair32 CD (update): 3122 785 60070.
• SearchMan32 CD (update): 3122 785 60080.
• ComPair interface cable: 3122 785 90004.
5.5 Error Codes
5.5.1 Introduction
The error code buffer contains all detected errors since the last
time the buffer was erased. The buffer is written from left to
right, new errors are logged at the left side, and all other errors
shift one position to the right.
When an error has occurred, the error is added to the list of
errors, provided the list is not full or the error is a protection
error.
When an error occurs and the error buffer is full, then the new
error is not added, and the error buffer stays intact (history is
maintained), except when the error is a protection error.
To prevent that an occasional error stays in the list forever, the
error is removed from the list after 50+ operation hours.
When multiple errors occur (errors occurred within a short time
span), there is a high probability that there is some relation
between them.
5.5.2 How to read the Error Buffer
Use one of the following methods:
• On screen via the SAM (only if you have a picture).
Examples:
– 0 0 0 0 0: No errors detected
– 6 0 0 0 0: Error code 6 is the last and only detected
error
– 9 6 0 0 0: Error code 6 was first detected and error code
9 is the last detected error
• Via the blinking LED procedure (when you have no
picture). See next paragraph.
•Via ComPair.
5.5.3 How to clear the Error Buffer
Use one of the following methods:
• By activation of the 'RESET ERROR BUFFER' command
in the SAM menu.
• With a normal RC, key in sequence 'MUTE', followed by
'062599' and 'OK'.
• When you transmit the commands 'DIAGNOSE' - '99' - 'OK'
with ComPair (or with a DST).
• If the content of the error buffer has not changed for 50+
hours, it resets automatically.
5.5.4 Error Codes
In case of non-intermittent faults, clear the error buffer before
you begin the repair. This to ensure that old error codes are no
longer present. Before clearing the buffer, write down the
content, as this history can give you significant information.
If possible, check the entire contents of the error buffer. In
some situations, an error code is only the result of another error
code and not the actual cause (e.g., a fault in the protection
detection circuitry can also lead to a protection).
There are various errors:
•I
2
C device errors.
•I
2
C bus errors.
• Protection errors.
• Errors not related to I
2
C device, but of importance:
– Black Current Loop Error (error 28): detection of a
continuous fail of the black current stabilisation loop of
the HOP.
– FALCONIC Error (error 26): at start-up, after
initialisation of the PICNIC, the presence of the
FALCONIC can be checked.
– Eagle Error (error 27): at start-up, after initialisation of
the PICNIC, the presence of the Eagle can be
checked.
Table 5-3 Error Table
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.
Error Device Description Def. item Defect. module indication Diagram
1 M24C32 NVM, spontaneous blinking 1-1-1.. 7011 NVM B5
2 Hfail Protection Horizontal Flyback protection 7301 HFB protection B4
3 SAA4978 PICNIC 7713 PICNIC B3a
4 Supply 5V 5V2 protection 5V Protection B5
5 Supply 8V 8V6 protection 8V Protection B5
6Slow I
2
C bus blocked Slow I
2
C bus blocked B5
7 TDA9330/HOP High-end Output Processor 7301 HOP video control/geometry B4
8 TDA9320/HIP High-end Input Processor 7323 HIP I/O-video processing B2
12 TDA9178 7302 TOPIC (LTP Peaking) B4
13 UV1316/ TEDE9 1200 Tuner Protection A8
14 MSP3411/3412/3452 7651 ITT sound processor B6
16 FBX Feature Box Protection B3
17 M62320P I/O Expander HD interface 7106 HD Interface N1
18 Fast I
2
C bus blocked Fast I
2
C bus blocked B5
19 TDA8444 7500 Auto Scavem DAC SC1
21 M62320P 7403 PIP I/O Expander C3
22 TDA888X 7301 PIP BOCMA C4
23 TELE9 7201 PIP Tuner C2
24 SAB9081 7801 PIP Muppet C1
26 SAA4992 FALCONIC 7718 Falconic B3b
27 T8F24EF Eagle 7724 Eagle device B3c
28 Black current loop Black current loop
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