Sony Esprit TAV-L1, Service Manual

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3
TAV-L1
(When letters/numbers appear in the display)
When the self-diagnosis function is activated to prevent the system from malfunctioning, a 5-character service
number (e.g., C 13 50) with a combination of a letter and 4 digits appears on the screen and the front panel display.
In this case, check the following table.
When displaying the version number on the screen
When you turn on the system, the version number [VER.X.XX] (X is a number) may appear on the screen. Although this
is not a malfunction and for Sony service use only, normal system operation will not be possible. Turn off the system, and
then turn on the system again to operate.
Self-diagnosis function (DVD function only)
First 3 characters of the service
number
Cause and/or corrective action
C 13 The disc is dirty.
Clean the disc with a soft cloth.
C 31 The disc is not inserted correctly.
Restart the system, then re-insert the disc correctly.
E XX
(xx is a number) To prevent a malfunction, the system has performed the self-diagnosis
function.
Contact your nearest Sony dealer or local authorized Sony service facility
and give the 5-character service number.
Example: E 61 10
C:13:50
VER.X.XX
SELF DIAGNOSIS FUNCTION
DESCRIPTION OF LED INDICATORS
LED LED Type Description
Light is green when the TV set is on
POWER LED Red/Green LED Function as failure indicator
Blinks green in aging mode
SLEEP LED Red LED Lights when timer is set
PIC OFF LED Green LED
Lights when power saving setting is
set to picture off
DIAGNOSTIC TEST INDICATORS
When an error occurs, the
[POWER]
LED will flash a set number of
times to indicate the possible cause of the problem. If there is more
than one error, the LED will identify the first of the problem areas.
If the errors occur simultaneously, the one that corresponds to the
fewest flashes is identified first. Results for all of the following
diagnostic items are displayed on screen. No error has occurred if
the screen display a “0”.
Number of Times
Monitoring Item
POWER LED Blinks
1 Time Abnormal AU Power Voltage (DCALERT 3)
2 Times
Abnormal D5V/A9V Power Voltage
(DCALERT 2)
3 Times Abnormal Panel Voltage (DCALERT 1)
4 Times Backlight Failure
5 Times Abnormal Main Power Voltage
6 Times Abnormal Speaker Voltage
7 Times
Internal Temperature Rise
(Mainly on the Panel Side)
LED CONTROL
Status POWER LED SLEEP LED PIC OFF LED Remarks
Power off using the [POWER] button or remote commander.
Power Off Off Off Off Note: Standby state does not exist in WAX; however, the
microcomputer does enter into sleep mode.
Power Off Lights Green Off Off Microcomputer working normally.
Failure Blinks Red Off Off Failure causes are classified by the number of time the red light blinks.
Aging Blinks Green Off Off Aging mode is classified by a blinking green light.
Picture Off Lights Green Off Lights Green No display (black screen).
SLEEP TIMER
Lights Green Lights Red Off When SLEEP TIMER is set during power on.
Lights Green Lights Red Lights Green When SLEEP TIMER is set in Picture Off mode.
Off Lights Red Off When ON TIMER is set and power is off.
ON TIMER Lights Green Lights Red Off When ON TIMER is set and power is on.
Lights Green Lights Red Lights Green When ON TIMER is set in Picture Off mode.
The units in this manual contain a self-diagnostic function. If an error occurs, the
[POWER]
LED will automatically begin to flash. The
number of times the LED flashes translates to a probable source of the problem. A definition of the
[POWER]
LED flash indicators is listed
in the instruction manual for the user’s knowledge and reference. If an error symptom is difficult to reproduced use the remote commander
to display the record that is stored at the internal NVM to specify the cause of the failure.