Self-Diagnostic Function - Sony KP-57WV600 Manuel D'utilisation

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to ß ash. The number
of times the LED ß ashes translates to a probable source of the problem. A deÞ nition of the STANDBY/TIMER LED ß 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 ß 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 Þ 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
Power does not turn on
+B Overcurrent (OCP)*
Low +B Overvoltage (OVP)
Vertical Deflection Stopped
White Balance Failure
(not balanced)
LOW +B OCP/OVP
(overcurrent/overvoltage)***
Horizontal Deflection
Stopped
* If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is diagnosed first by the
microcontroller is displayed on the screen.
** Refer to Screen (G2) Adjustment (Fine Adjustments) in Section 2 of this manual.
*** If STANDBY/STEREO LED flashes six (6) times, unplug the unit and wait 10 seconds before performing the adjustment.

SELF-DIAGNOSTIC FUNCTION

No. of times
STANDBY / Display
TIMER lamp Result
flashes
• Power cord is not plugged in.
Does not light _______
• Fuse is burned out (F501). (A Board)
• H.OUT (Q8024) is shorted. (D Board)
2 times 2:0 or 2:1
• +B PWM (Q8035) is shorted.
• IC6504 is faulty. (D Board)
3 times 3:0 or 3:1
• 15V is not supplied. (D Board)
4 times 4:0 or 4:1
• IC8003 is faulty. (D Board)
• Video OUT (IC9101, IC9201, IC9301)
5 times 5:0 or 5:1
• CRT drive (IC2801) is faulty. (B Board)
• G2 is improperly adjusted.**
• +5 line is overloaded. (A, B, M Boards)
6 times 6:0 or 6:1
• +5 line is shorted. (A, B, M Boards)
• IC504 is faulty. (A Board)
7 times 7:0 or 7:1
Probable Cause Location
(D Board)
is faulty. (CR, CG, CB Board)
— 7 —
KP-57WV600/57WV700/
65WV600/65WV700
Self Diagnosis
Supported model
Detected Symptoms
• Power does not come on.
• No power is supplied to the TV.
• AC Power supply is faulty.
• Power does not come on.
• Load on power line shorted.
• Has entered standby mode.
• Has entered standby mode after
Horizontal raster.
• Vertical deflection pulse is stopped.
• Power line is shorted or power
supply is stopped.
• No raster is generated.
• CRT cathode current detection
reference pulse output is small.
• No picture
• No picture