Philips QV14.1E, Service Manual

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Service Modes, Error Codes, and Fault Finding EN 31 QV14.1E LA 5.
2014-Oct-22
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div. table
Table 5-1 Error code overview
Extra Info
•
Rebooting. When a TV-set is constantly rebooting due to
internal problems, most of the time no errors will be logged
or blinked. This rebooting can be recognized via
Hyperterminal (for Hyperterminal settings, see section “
5.8
Fault Finding and Repair Tips , 5.8.5 Logging ). It’s shown
that the loggings which are generated by the main software
keep continuing.
5.6 The Blinking LED Procedure
5.6.1 Introduction
The blinking LED procedure can be split up into two situations:
•
Blinking LED procedure LAYER 1 error. In this case the
error is automatically blinked when the TV-set is put in
CSM. This will be only one digit error, namely the one that
is referring to the defective board (see table “
5-1 Error code
overview ”) which causes the failure of the TV. This
approach will especially be used for home repair and call
centres. The aim here is to have service diagnosis from a
distance.
• Blinking LED procedure LAYER 2 error. Via this
procedure, the contents of the error buffer can be made
visible via the front LED. In this case the error contains
2 digits (see table “
5-1 Error code overview ”) and will be
displayed when SAM is activated.This is especially useful
for fault finding and gives more details regarding the root
cause of the defective board.
Important remark:
For an empty error buffer, the LED should not blink at all in
CSM or SAM. No spacer will be displayed.
When one of the blinking LED procedures is activated, the front
LED will show (blink) the contents of the error buffer. Error
codes greater then 10 are shown as follows:
1.
“n” long blinks (where “n” = 1 to 9) indicating decimal digit
2. A pause of 1.5 s
3. “n” short blinks (where “n”= 1 to 9)
4. A pause of approximately 3 s,
5. When all the error codes are displayed, the sequence
finishes with a LED blink of 3 seconds (spacer).
6. The sequence starts again.
Example: Error 12 8 6 0 0.
After activation of the SAM, the front LED will show:
1.
One long blink of 750 ms (which is an indication of the
decimal digit) followed by a pause of 1.5 s
2. Two short blinks of 250 ms followed by a pause of 3 s
3. Eight short blinks followed by a pause of 3 s
4. Six short blinks followed by a pause of 3 s
5. One long blink of 3 s to finish the sequence (spacer).
6. The sequence starts again.
5.6.2 How to Activate
Use one of the following methods:
•
Activate the CSM. The blinking front LED will show the
layer 1 error(s), this works in “normal operation” mode or
automatically when the error/protection is monitored by the
standby processor.
In case no picture is shown and there is no LED blinking,
read the logging to detect whether “error devices” are
mentioned. (see section “
5.8 Fault Finding and Repair
Tips , 5.8.5 Logging ”).
• Activate the SAM. The blinking front LED will show the
entire content of the LAYER 2 error buffer, this works in
“normal operation” mode.
5.7 Protections
5.7.1 Software Protections
Most of the protections and errors use either the standby
microprocessor or the SOC controller as detection device.
Since in these cases, checking of observers, polling of ADCs,
and filtering of input values are all heavily software based,
these protections are referred to as software protections.
There are several types of software related protections, solving
a variety of fault conditions:
Description Layer 1 Layer 2
Monitored
by Error/
Prot Error Buffer/
Blinking LED
Device Defective Board
FE-bus 2 11 SOC E BL / EB SSB SSB
Cypress bus 2 12 SOC E BL / EB SSB SSB
BE bus 2 13 SOC E BL / EB SSB SSB
HDMI bus 2 14 SOC E BL / EB SSB SSB
Soc doesn’t boot (HW cause) 2 18 Stby µP P BL SSB SSB
12V 3 16 Stby µP P BL / Supply
Display supply (POK) 3 17 SOC E EB / Supply
Vcore 3V3 2 21 SOC E EB 88PG867 SSB
Vcpu 1V8 2 22 SOC E EB 88PG867 SSB
HDMI mux 2 23 SOC E EB SiI9287 SSB
I2C switch 2 24 SOC E EB PCA9546 SSB
I2C switch PMIC 2 25 SOC E EB PCA9543 SSB
Cypress 2 26 SOC E EB 88DE6010 SSB
Channel decoder 1 2 27 SOC E EB SSB
Channel decoder 2 2 28 SOC E EB SSB
Rogue (HDMI2.2) 2 29 SOC E EB siI9679 SSB
Lnb Single/Dual 2 31 SOC E EB LNBH25/26 SSB
Hybrid Tuner 2 34 SOC E EB SUT-PE531 SSB
Analog demodulator 2 35 SOC E EB TDA 8296 SSB
Class-D 2 37 SOC E EB TAS 5760 SSB
FPGA PQ 2 38 SOC E EB / SSB
FPGA UHDr 2 39 SOC E EB / SSB
T° sensor SSB/set 2 42 SOC E EB LM75 T° sensor/SSB
Light sensor 6 43 SOC E EB TSL2571 Set
RF4CE 6 46 SOC E EB CC2533 Set
SOC doesn’t boot (SW cause) 2 53 Stby µP P BL Marvell SSB
NT72314 9 61 SOC E EB NT72314 Back-end
I2C switch back-end 9 63 SOC E EB PCA9543 Back-end
Splash error 9 65 SOC E EB NT314, SOC SSB