Self Diagnosis Function - Sony KV-DW36K9H Service Manual

1. Summary of Self-Diagnosis Function
• This device includes a self-diagnosis function.
• In case of abnormalities, the STANDBY/
location by the number of blinks. The Instruction Manual describes blinking of the /STANDBY/
• If the symptom is not reproduced sometimes in case of a malfunction, there is recording of whether a malfunction was generated
or not. Operate the remote command to confirm the matter on the screen and to predict the location of the abnormality.
2. Diagnosis Items and Prediction of Malfunction Location
• When a malfunction occurs the STANDBY/
two or more malfunctions, the item which first occurred blinks. If the malfunctions occurred simultaneously, the item with the
lower blink count blinks first.
• The screen display displays the results regarding all the diagnosis items listed below. The display " 0 " means that no malfunc-
tions occurred.
Diagnosis Item
+B overcurrent (OCP)
+B overvoltage (OVP)
Vertical deflection stopped
(V-STOP)
IK error (AKB ERROR)
Low-B error
Horizontal deflection
stopped (H-STOP)
3. Blinking count display of STANDBY/
< FRONT PANEL >
STANDBY/ indicator
Release of STANDBY/
• The STAND BY indicator blinking display is released by turning OFF the power switch
on the TV main unit or removing the plug from the power.

SELF DIAGNOSIS FUNCTION

indicator automatically blinks. It is possible to predict the abnormality
indicator only blinks for one of the following diagnosis items. In case of
Number of times
STANDBY/
Probable Cause Location
indicator blinks
T8001 (FBT) Rare short-circuit etc. (D board)
2 times
Q5030 (H-OUT), Q5028 (D board)
+B load open (D board) R6570 Open
3 times PH6502, control system malfunction L2603
Open
IC5004 (V. OUT) (D board) IC201
4 times
(CXA2150Q) (A1 board)
VIDEO OUT IC malfunction IC9001, 9002,
5 times
9003 (C1 board) IC201 (CXA2150Q)
(A1 board)
Sub power supply system load shorted etc.
6 times
(A1 board)
IC201 (CXA2150Q) (A1 board) Q5031
7 times
(S-COR-OUT), Q5030 (H-OUT), Q5028
indicator
* One blink is not used for self-diagnosis.
•EXAMPLE
<Diagnosis Items> <Number of Blinks>
• +B overcurrent
• +B overvoltage
• Vertical deflection stop
Lamp ON : 0.3 seconds
Lamp OFF : 0.3 seconds
indicator blinking.
2 times
3 times
4 times
– 5 –
KV-DW36K9H
indicator.
Detected Symptoms
Has entered standby mode.
(Relay is off when the power
turns on.)
Has entered standby mode.
Has entered standby mode.
Has not entered standby mode.
Has entered standby mode.
Has entered standby mode.
Lamp OFF :
3.0 seconds
RM-970