Sony KP 43T90, Руководство по обслуживанию

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KP- 43T90 / 48V90 / 53V90 / 61V90
SELF-DIAGNOSTIC FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to fl ash. The number
of times the LED fl ashes translates to a probable source of the problem. A defi nition of the STANDBY/TIMER LED fl ash indicators is listed in the
instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the Remote Commander can be used to review
the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
Diagnostic Test Indicators
When an error occurs, the STANDBY/TIMER LED will fl ash 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 fi rst of the problem areas.
Results for all of the following diagnostic items are displayed on screen. If the screen displays a “0”, no error has occurred.
Diagnostic Item STANDBY/ Possible Problem Location Condition Detected Symptoms
TIMER
fl ashes
Self Diagnosis
Supported model
FRONT PANEL
TIMER/STANDBY indicator
Lamp OFF :
3.0 seconds
Lamp ON : 0.3 seconds
Lamp OFF : 0.3 seconds
• EXAMPLE
Diagnosis Items Number of Blinks
+B overcurrent 2 times
+B overvoltage 3 times
Vertical deflection stop 4 times
TV/VIDEO
FLASH FOCUS
VOLUME
POWER
TIMER/STAND BY
– +
CHANNEL
– +
* One blink is not used for self-diagnosis.
Power not On 0 [Standby Power Supply System] Cannot turn on the power
F601 open LED doesn’t blink
R607 open
Q601 short circuit
[Main Power Supply System}
IC601 and R612 are broken
VDR601 short-circuit
+B OCP Detection 2 times Short circuit of power supply in each circuit Goes to the standby mode 2: +B OCP 000
Short circuit of the +B line
+B OVP Detection 3 times T603 pin 7 to pin 8 is open Goes to the standby mode 3: +B OVP 000
Vertical Defl ection Stop 4 times IC 1509 (V OUT) is broken Raster goes to one line horizontally 4: V Stop 000
Q1505 (V Pulse Buffer) is broken A and then video signal is muted.
Video Out Abnormality 5 times Video Out, Q705, 732, 761, and others in C board STANDBY/TIMER LED blinks approx. 5: AKB 000
Detection 30 secs, then blinks for the diagnosis
Horizontal Defl ection Stop 6 times C515, 516 open. IC206 (YC Jungle) is broken. Raster does not appear. 6: H Stop 000
Audio Abnormality 8 times IC 406 (Audio amp.) is broken. The sound is not out. 8: Audio 000
Detection PS401, 402 open Goes to the standby mode
Note: 000 the range of values for number of operations is 000 - 255. For 256 or higher, the number remains as 255.
Display of Standby/Timer LED Flash Count
Release of TIMER/STANDBY indicator blinking.
The TIMER/STANDBY indicator blinking display is released by turning OFF the power switch on the TV main unit or removing the plug from the
power.