Diagnostics; Led Indicators; Software Version Information; How To Run Diagnostics - HP LT3700 Service Manual

This section identifies potential service modes used for service along with their function and purpose. This section also
identifies error detection LEDs and error codes.

LED Indicators

Indicator
Amber and aqua LED blinking
Amber LED blinking
Aqua LED blinking
Amber LED blinking
Aqua LED blinking
Amber and aqua LED blinking
What is the special condition to watch out for with the following message: Red LED blinking 2
sec interval – Digital Demodulator does not respond?
Error code 003 (digital demodulator does not respond) requires source to be selected as "antenna" before the test is
valid. If source is not antenna, it will always give you error code 003 because digital demodulator is not turned on
until "antenna" source is selected.

Software version information

Note: You must be in Fullmenu to perform this function with a link back to the place showing how to access Fullmenu.
To access the software version information OSD:
1 Turn the TV on.
2 Press the Menu button.
3 From OSD, select Setup -> Time.
4 Press the following keys: SAP/MTS -> 7 -> 7 -> 7.
The software version information displays on the lower right corner of the TV.

How to run diagnostics

1 Power off the TV and pull disconnect the power cord.
2 Plug in the power cord while holding the power button on the TV (not on the remote). Hold the power button until a
testing message appears. This may take up to 30 seconds.
3 Diagnostic test begins.
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HP High-Definition LCD TV Service Manual

Diagnostics

Blink Frequency
Failure Part
1 sec interval MCU-Host link error
1 sec interval TAFE does not respond
1 sec interval Tuner does not respond
2 sec interval Digital Demodulator does not respond
2 sec interval Audio process does not respond
2 sec interval More than two I2C devices error
Location
Main board
Main board
Main board
Main board
Main board
Main board