Self Diagnosis Function - Sony KV-HR32K90 Service Manual

1. Summary of Self-Diagnosis Function
• This device includes a self-diagnosis function.
• In case of abnormalities, the 1 or 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 1 or 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 1 or 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
+B overcurrent (OCP)
+B overvoltage (OVP)
Vertical deflection stopped
(V-STOP)
IK error (AKB ERROR)
Low-B error
Horizontal deflection
stopped (H-STOP)
Audio Protector
Zero Cross DET error
High-Voltage stopped
(HV-PROT)
SECTION 1

SELF DIAGNOSIS FUNCTION

Number of times
1 or STANDBY/WAKE UP
indicator blinks
2 times
3 times
4 times
5 times
6 times
7 times
8 times
9 times
10 times
Probable Cause Location
T8001 (FBT) Rare short-circuit etc. (D board)
Q5001 (H-OUT), Q5006 (D board)
+B load open (D board) R6570 Open
PH8003, control system malfunction L2603
Open
IC5101 (V. OUT) (D board) IC401
(CXA2170Q) (MG board)
VIDEO OUT IC malfunction IC9001, 9002,
9003 (C board) IC401 (CXA2170Q)
(MG board)
Sub power supply system load shorted etc.
(A board)
IC401 (CXA2170Q) (MG board) Q5404
(S-COR-OUT), Q5001 (H-OUT), Q5006
IC2000, 2001 malfunction (A board)
RY6000 Power relay melting down (A board)
T8001 (FBT) rare short-circuit (D board)
IC8002, Q8013, 8014, R8051 (D board)
– 5 –
KV-HR32K90/HR32M31
RM-1012 RM-1007
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.
Has entered standby mode.
Has not entered standby mode.
Has entered standby mode.