Error Buffer - Philips 27G7 Service Manual

Error Buffer

The six most recent errors are encoded on the following line of the display. The most recent error will be
displayed in the register nearest the text "ERR." The error codes and their meanings are shown below.
0 = No error
1 = X-ray protection, E/W protection and/or Vertical protection active
2 = High beam current protection active
3 = Reserved
4 = +5V protection active
5 = Signal Processor (IC 7150) register corrupted
6 = Signal Processor (IC 7150) error
7 = General I 2 C error
8 = Internal RAM error (Microprocessor IC 7000)
9 = OSD generator I 2 C error (PCA 8516 )
10 = NV memory (IC 7088) addressing error
11 = NV memory (IC 7088) identification error
12 = Histogram (YUV) (IC 7330) error (TDA9178)
14 = Sound processor I 2 C error (IC 7430) (MSP3430)
15 = I/O expander I 2 C error (PCF8674 for DW)
16 = ALPS Tuner I²C error (IC 1125)
17 = PIP Processor I²C error (IC 7350)
18 = PIP Tuner I²C error (IC 1127)
19 = EPG I 2 C error or Guide Plus I 2 C error
20 = Non Volatile Clock I 2 C error
21 = I/O Expander I 2 C error (PCF8574 for I/O panel)
22
= Virtual Dolby I 2 C error (DPL3518)
23 = Reserved (for 2 nd Painter)
Note: I²C = (SCL/SDA)
The error buffer will automatically be erased if its contents haven't changed in the last 50 hours of use (run timer
count). This is to prevent an error buffer full of codes which are not valid.
Manual erasure of the buffer is possible through:
l ERASE BUFFER (SAM mode only) command from the remote control
l exiting SDM or SAM by pressing the Power button on the remote control or the television set
To save error codes, remove ac power. When ac power is reapplied, the chassis will be on, in SAM or SDM,
and the error codes may be viewed again.
A blinking LED may indicate a current error. The error code can be determined by counting the "off" blinks.
Error Code Table