Read Sony KV-HR32K90 Service Manual online
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KV-HR32K90
RM-1012
1.
Summary of Self-Diagnosis Function
•
This device includes a self-diagnosis function.
•
In case of abnormalities, the STANDBY/WAKE UP indicator automatically blinks. It is possible to predict the abnormality
location by the number of blinks. The Instruction Manual describes blinking of the STANDBY/WAKE UP indicator.
•
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/WAKE UP indicator only blinks for one of the following diagnosis items. In case
of 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
Number of times
STANDBY/WAKE UP
indicator blinks
Probable Cause Location
Detected Symptoms
+B overcurrent (OCP)
2 times
T8001 (FBT) Rare short-circuit etc. (D board)
Q5001 (H-OUT), Q5006 (D board)
Q5001 (H-OUT), Q5006 (D board)
Has entered standby mode.
(Relay is off when the power
turns on.)
(Relay is off when the power
turns on.)
+B overvoltage (OVP)
3 times
+B load open (D board) R6570 Open
PH8003, control system malfunction L2603
Open
PH8003, control system malfunction L2603
Open
Has entered standby mode.
Vertical deflection stopped
(V-STOP)
(V-STOP)
4 times
IC5101 (V. OUT) (D board) IC401
(CXA2170Q) (MG board)
(CXA2170Q) (MG board)
Has entered standby mode.
IK error (AKB ERROR)
5 times
VIDEO OUT IC malfunction IC9001, 9002,
9003 (C board) IC401 (CXA2170Q)
(MG board)
9003 (C board) IC401 (CXA2170Q)
(MG board)
Has not entered standby mode.
Low-B error
6 times
Sub power supply system load shorted etc.
(A board)
(A board)
Has entered standby mode.
Horizontal deflection
stopped (H-STOP)
stopped (H-STOP)
Audio Protector
7 times
IC401 (CXA2170Q) (MG board) Q5404
(S-COR-OUT), Q5001 (H-OUT), Q5006
(S-COR-OUT), Q5001 (H-OUT), Q5006
8 times
IC2000, 2001 malfunction (A board)
Has entered standby mode.
Has entered standby mode.
Zero Cross DET error
9 times
RY6000 Power relay melting down (A board)
Has not entered standby mode.
High-Voltage stopped
(HV-PROT)
10 times
T8001 (FBT) rare short-circuit (D board)
IC8002, Q8013, 8014, R8051 (D board)
IC8002, Q8013, 8014, R8051 (D board)
Has entered standby mode.
SECTION 1
SELF DIAGNOSIS FUNCTION
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