Sony KLV-40WE5 Service Manual ▷ View online
– 8 –
KLV-40WE5
RM-GA015
SECTION 2
SELF DIAGNOSTIC FUNCTION
2-1. Overview of Control Buttons
2-2. LED Display Specification
2-3. LED Display Control
LED Type
POWER
STANDBY
Picture Off/
Timer
Timer
Description
Green: LED
Red: One LED
Green/Amber
: Two LEDs
: Two LEDs
Remark
Green light at power ON.
Red lights during standby.
Green light during Picture
OFF and amber lights
during Timer activation.
OFF and amber lights
during Timer activation.
Status
POWER ON
STANDBY
Failure
Remark
Microcomputer is
in a normal state.
in a normal state.
Microcomputer is
in a sleep state.
in a sleep state.
Classify the
trouble causes by
the no. of red.
trouble causes by
the no. of red.
Green lights
OFF
OFF
OFF
Red lights
Red flashes
Display
Power LED
Standby LED
2-4. LED Pattern
When safety shutdown occurs, Standby LED display reports
the cause by using the lightning patterns as indicated below.
When safety shutdown occurs, Standby LED display reports
the cause by using the lightning patterns as indicated below.
Example:
The figure above shows LED display when SHUTDOWN is
caused by DC_ALERT. It repeats flashing for a specified
number of times in 0.3sec/cycle and has a 2 seconds interval
of lighting off.Please note that a 2 seconds interval of lighting
off is fixed regardless of abnormal state types.
caused by DC_ALERT. It repeats flashing for a specified
number of times in 0.3sec/cycle and has a 2 seconds interval
of lighting off.Please note that a 2 seconds interval of lighting
off is fixed regardless of abnormal state types.
2.0 sec
2.0 sec
0.3 sec
0.3 sec
Light sensor
Remote control sensor
Remote control sensor
Presence
Sensor
Sensor
Picture
Off/Timer
Off/Timer
Standby
Power
Power
PROG +/-/
Volume +/-/
/
Input select
Home
Energy Saving
Switch
Switch
– 9 –
KLV-40WE5
RM-GA015
Blinking times
Error
Countermeasure
2
DC_DET
Replace either/all
z
BA Board
z
Power Board
- G2BE (32”) (Not used for these models)
- IP1 (40”) (Not used for these models)
- IP2 (46”) (Not used for these models)
- INV PWR BOARD IPB-4001//Q (IP3)
- G2BE (32”) (Not used for these models)
- IP1 (40”) (Not used for these models)
- IP2 (46”) (Not used for these models)
- INV PWR BOARD IPB-4001//Q (IP3)
5
DC_ALERT
Replace BA Board.
6
BACKLIGHT
Replace BA Board.
7
INTERNAL TEM
Replace
z
Power board
- G2BE (32”) (Not used for these models)
- IP1 (40”) (Not used for these models)
- IP2 (46”) (Not used for these models)
- INV PWR BOARD IPB-4001//Q (IP3)
- G2BE (32”) (Not used for these models)
- IP1 (40”) (Not used for these models)
- IP2 (46”) (Not used for these models)
- INV PWR BOARD IPB-4001//Q (IP3)
8
AUDIO
Replace either/all
z
BA Board
z
Power Board
- G2BE (32”) (Not used for these models)
- IP1 (40”) (Not used for these models)
- IP2 (46”) (Not used for these models)
- INV PWR BOARD IPB-4001//Q (IP3)
- G2BE (32”) (Not used for these models)
- IP1 (40”) (Not used for these models)
- IP2 (46”) (Not used for these models)
- INV PWR BOARD IPB-4001//Q (IP3)
z
Speaker
10
DIGITAL FE/DE
Replace BA board.
12
HFR_ERR
Replace either/both
z
Panel
z
BA Board
13
BALANCER
Replace either/both
z
Panel
z
Power Board
- INV PWR Board IPB-4001/Q (IP3)
- INV PWR Board IPB-4001/Q (IP3)
14
T-CON
Replace either/both
z
Panel
z
BA Board
2-5. Standby LED Error Display
Perform below countermeasures according to Standby LED blinking times.
Perform below countermeasures according to Standby LED blinking times.
Note: Each of the above blinking repeats every 2 seconds.
– 10 –
KLV-40WE5
RM-GA015
2-6. Triage Chart
BA
Board
HL4A
Board
HMS Board
HSN Board
HSW Unit
G2BE Unit
(not used for these models)
IP1 Unit
(not used for these models)
T
-CON Board
Speaker Unit
RF Module
Panel Module
LV
DS cable
Joint Connector
Flowchart
Problem
Doubtful Part
IP2 Unit
(not used for these models)
A(i & ii)
A(i & ii)
A(i & ii)
A(i & ii)
A(i & ii)
A(i & ii)
A(i & ii)
DD
DC
C
C
C
C
B
B
Few Possibility
Low B+
Low B+
T
emp
Audio
HFR
Balancer
T
-CON
Digital
BL
INV PWR BOARD
IPB-4001//Q(IP3)
Reference
Symptom(DeadSet)
(Refer Section 3:
T
roubleshooting(for flowchart reference))
Vi
deo (Distorted or Missing)
2
Blinks
5
Blinks
6
Blinks
7
Blinks
8
Blinks
10
Blinks
12
Blinks
13
Blinks
14
Blinks
No
Power
No V
ideo
BL
OK
OSD OK
No V
ideo
No BL
No T
uner
Vi
d
eo OK
No
HDMI
No
Audio
T
uner OK
Vi
d
eo
1-3 Bad
No V
ideo
BL
OK
No OSD
– 11 –
KLV-40WE5
RM-GA015
SECTION 3
TROUBLESHOOTING
2, 5, 7,10, 13 blinks, No Video/
No BL, No Power
176-264VAC
Inlet on
INV PWR BOARD
IPB-4001//Q(IP3)
3.3V_DC
CN1300 3PIN
on BA Board
Does Power
Button work?
Button work?
BA Board
AC Cable or
AC Inlet
Switch Unit
No
No
No
88-132VAC
Inlet on
INV PWR BOARD
IPB-4001//Q(IP3)
Destination
Taiwan
E, Hong Kong
INV PWR BOARD
IPB-4001//Q(IP3)
(No STBY 3.3V)
3-1. Flowchart
3-1-1. Flowchart A
(i)
Flowchart A(ii)
No Power/Shut down/No Picture
Try On/Off at Main SW
and with Remote Commander
and with Remote Commander
Is it LED(STBY)
indicator turn on
or blinked?
Is it correct
Connection at
Wire harness?
Check Harness holder, Header pin
and Wire harness.
Is it bended or damaged?
(If yes, replace it to a new one)
Count blink and replace board to
obey with 2-6 triage chart.
Refer Section 3.2 Board
Replacement Order.
Yes
No
Power source is out of order.
Other circuit block is out of order
except for Power board. Check
STBY3.3V Vcc line and circuit.
STBY3.3V Vcc line and circuit.
Yes
No
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