Sony KV-HR36M31 Service Manual page 5

SECTION 1
SELF DIAGNOSIS FUNCTION
I . Summary of Self-Diagnosis Function
*
This device includes a self-diagnosis function.
In case of abnom~alities. the'oindicator automatically blinks. It is possible to predict the abnormality location by the number
of blinks. The Instruction Manual describes bhlking of the mindicator.
*
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 confinn the matter on the screen
and
to predlct the loc'lt~on of the abnormd~t>.
2.
Diagnosis Items and Prediction of Malfunction Location
When a malfunction occurs t h e n i n d i c a t o r only blinks for one of the following diagnosis items. In case of two or more
malfunctions, the item u h c h iirst occurred blinks. If the malfunctions occurred simultancously. 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.
1
Nunrber+tmes
~
Diagnosis Item
---
1
indicator b M s
Probable Cause Location I
Detected SJ mptoms
1
+B overcurrent IOCP)
1
2 times
1
78001 (FBTl Rare sllort-circuit etc. (D board)
entered standby mode.
1 Q5001 (H-OUT), Q5006 iD board)
[Relay is off when the power
!
I
turns on.)
1
+B
loau open
iD
board)
R6570
O p e C p - ~
1
+B overvoltage IOVP)
3 times
I
PH8003, control system malfunction L2603
1
Has entered standby mode.
Open
.
Vertical deflection stopped
- - 1 0 1 ( <
OUT) (D b o a d j IC401
~
((V-STOP)
1
4 times
1
(CXA2170Q) (MJ board)
1 Has entered standby mode.
i
5
times
VTDEO OLT IC malfunction IC9001, 9002.
I l l
error M i B L i O i )
9003 (C board) IC1.01 (CX42170Q)
Has not entered standby mode
(
iMJ board)
- -
- - -
4
Sub power supply system load shorted etc
I
6 times
I
I
1
[A board)
Has entered standby mode
I
I
Horizontal deflecnon IC401 (CXA2150Q) (MJ board) Q5404
1
1
stopped (H-STOP)
1
7 nmes
1
(S-COR-OUT), Q5001 (H-OUT). Q5006
Has entered standby mode.
I
.
I
I
Audlo Protector
I
8 hmes
'
IC1-000. 2001 malfuncuon (A board)
)
Has entered standby mode
I
tfigh-Voltage stopped
I
T8001 (FBT) rare short-circu~t (D board',
(HV-PROT)
10 tlmes
IC8002. Q8013.8014. R805I (D board) Has entered mode
(
Zero Cross DET emor
9 tlmes
RYhO00 Power relay meltlng down (A board)
'
Has not entered standby mode
(