Sony KV-HR36M90 Service Manual ▷ View online
– 5 –
KV-HR36M90
RM-1007
1.
Summary of Self-Diagnosis Function
•
This device includes a self-diagnosis function.
•
In case of abnormalities, the 1 indicator automatically blinks. It is possible to predict the abnormality location by the number
of blinks. The Instruction Manual describes blinking of the 1 indicator.
•
If the symptom is not reproduced sometimes in case of a malfunction, there is recording of whether a malfunction was gener-
ated 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 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
1
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
– 6 –
KV-HR36M90
RM-1007
3.
Blinking count display of 1 indicator
Lamp OFF :
3.0 seconds
3.0 seconds
Lamp ON : 0.3 seconds
Lamp OFF : 0.3 seconds
Release of 1 indicator blinking.
•
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.
But in the RLY ERR (10 times blinking), do not release by tuning power off.
For details, refer to the item 1-6.
* One blink is not used for self-diagnosis.
¥EXAMPLE
<Diagnosis Items> <Number of Blinks>
¥ +B overcurrent
2 times
¥ +B overvoltage
3 times
¥ Vertical deflection stop
4 times
< FRONT PANEL >
1 indicator
AUTO PROG
MENU
L(MONO)
R
4
PROG
4.
Self-diagnosis screen displays
•
In cases of malfunctions where it is not possible to determine the symptom such as when the power goes off occasionally or when
the screen disappears occasionally, there is a screen display on whether the malfunction occurred or not in the past (and whether
the detection circuit operated or not) in order to allow confirmation.
<Screen Display Method>
•
Quickly press the remote command button in the following order from the standby state.
˘
Be aware that this differs from the method of
entering the service mode ( + ).
b
b
b
5
–
=/1
• "G" : OK, "NG" : DETECTS ONCE OR MORE
• THE 10 DIGITS OF NUMERALS ARE FOR CHECKING,
NO RELATION TO DIAGNOSIS.
• 101 : NO LED BLINKING FOR WDT.
"0" : NUMBER OF DETECTION.
Self-diagnosis screen display
– 7 –
KV-HR36M90
RM-1007
5.
After the self-diagnosis operation
•
The results display is not automatically cleared. In case of repairs and after repairs, check the self-diagnosis screen and be sure
to return the results display to “ 0 ”.
•
If the results display is not returned to “ 0 ” it will not be possible to judge a new malfunction after completing repairs.
<Method of Clearing Results Display>
<Method of Ending Self Diagnosis Screen>
•
When ending the self-diagnosis screen completely, turn the power switch OFF on the remote commander or the main unit.
1. Power off (Set to the standby mode)
2. b 5 b + b (Service Mode)
3. Channel 8 b 0 (Test reset = Factory preset condition)
=/1
AUDIO PROT
(FROM A BOARD)
LOW-B ERR
(FROM A BOARD)
HV-PROT
(FROM D BOARD)
AC-RLY
(TO A BOARD)
OCP
(FROM A, D BOARD)
MAIN MICRO-
COMPUTER
IC0001
12C BUS
YCJ IC0401
CXA-2170Q
OVP
HV PROT
OCP
AKB
H-ST
OP
V-
S
T
OP
PF
MICRO-
COMPUTER
IC0002
OVP
(FROM A, D BOARD)
12C BUS
• I2C YCJ RETURN DATA
1
1
1
1
1
1
1
1
LED
BLINKING
TIMES
MG BOARD
SYMPTOM
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
10
+B OCP
+B OVP
V-STOP
AKB
LOW-B ERROR
H-STOP
AUDIO PROT
Z DET
HV PRT
+B OVP
V-STOP
AKB
LOW-B ERROR
H-STOP
AUDIO PROT
Z DET
HV PRT
– 8 –
KV-HR36M90
RM-1007
+B OCP
If the IC701 Pin 44 (+B OCP DET) is high 2 seconds, turn AC-RELAY low (P-OFF) and make STANDBY
LED blinks twice.
+B OVP
If the IC701 Pin 45 (+B OVP DET) is high 2 seconds, turn AC-RELAY low (P-OFF) and make STANDBY
LED blinks three times.
V-STOP
If the return data Bit0 (VNG) from CXA2150Q is “1” while 2 seconds, turn AC-RELAY low (P-OFF) and
make STANDBY LED blinks four times.
AKB
If the return data Bit2 (IKREF) from CXA2150Q is “0” and there is no change for 20 seconds, make
STANDBY LED blinks five times.
At this time, AC-RELAY continues to high.
LOW-B ERROR
If the IC701 Pin 69 (AC-RELAY) is high and the Pin 43 (LOW-B ERROR DET) is low while 5 seconds,
turn AC-RELAY low (P-OFF) and make STANDBY LED blinks six times.
H-STOP
If the return data Bit1 (HNG) from CXA2170 is “1” while 2 seconds, turn AC-RELAY low (P-OFF) and
make STANDBY LED blinks seven times.
W. D. T.
Observes the watch dock timer (BUS COMMUNICATION ERROR DET) bus communication. If errors are
detected, counts up and reform the bus communication and displays the number of time.
(No LED blinking).
AUDIO PROT
In case of Pin 85 of IC101 (AUDIO PROT DET) turns high 60msec twice at a time, makes AC-RELAY
turns low (Power off) and STANDBY-LED blinks 8 times.
HV-PROT
In case of Pin 33 of IC101 (HV-PROT DET) turns high 10 seconds continuously in normal operation or in
BS fixed Stand-by, makes AC-RELAY turns low (Power off) and STANDBY-LED blinks 10 times.
Z DET
There are two causes for Zero Cross Error.
Normally the pulse doubled AC power supply frequeny is fed to Pin 8 of IC101. But in case of the
abnormal pulse is fed, it makes AC-RELAY turns low (Power off) and STANDBY-LED blinks 9
times.
In this case, “1” is not displayed in ’9. Z DET’ column in the self-diagnosis mode.
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