Sony BRAVIA KDL-22EX420 User manual

SEGMENT:
P
-
1
MODEL
KDL
22
EX
420
SEGMENT:
P
1
PART NO. : 9-888-126-05
MODEL
KDL
40
EX
520
KDL
-
22
EX
420
KDL-22EX423
KDL-26EX420
KDL-26EX423
KDL
-
40
EX
520
KDL-40EX523
KDL-46EX520
KDL-46EX523
KDL-32EX420
KDL-32EX520
KDL-32EX523
NO SUFFIX DATE SUPP/CORR DESCRIPTION
1
01
2010/12
1st Issue
1
-
01
2010/12
--
1st
Issue
2 -02 2011/04 CORR-1 Part Information Change (Page 71, 78, 86)
3 -03 2011/04 SUPP-1 Part Information Addition : Hotel Model (Page 91~118)
4 -04 2011/04 CORR-2
Revise Iran Model Name to xxEX520 ( Cover Page,
80,83,87,88,89) ,
Revise reference for Safety Ilustration for Safety Notes (Page 3, 4)
i) Part Information Change (Cover Page, Page 80, 83, 88, 89)
ii) Remote Commander Picture Change (Page 46 ~ 53)
5-05 2011/05 CORR-3

MODEL COMMANDER DEST MODEL COMMANDER DEST
SEGMENT: P-1
KDL-22EX420
RM-GD020, CD013 Sogul Area, Singapore, Indonesia, Vietnam,
Phillippines India Thailand Malaysia South
KDL-40EX520
RM-GD020, CD013 Taiwan, Hong Kong, Sogul Area, Singapore,
Indonesia Vietnam Phillippines India
Phillippines
,
India
,
Thailand
,
Malaysia
,
South
Africa, Taiwan, Hong Kong.
KDL-22EX423
RM-GD020 Saudi Arabia, Nigeria
KDL-26EX420
RM-GD020, CD013 Taiwan, Hong Kong, Sogul Area, Singapore,
Indonesia, Vietnam, Phillippines, India, Thailand,
Mala
y
sia, South Africa, Australia, Saudi Arabia,
Indonesia
,
Vietnam
,
Phillippines
,
India
,
Thailand, Malaysia, South Africa, Australia,
NewZealand, Saudi Arabia, Nigeria, Iran,
Pakistan
KDL-40EX523
RM-GD020 Iran, Saudi Arabia, Nigeria
KDL 46EX520
RM
-
GD020, CD013
Taiwan, Sogul Area, Singapore, Indonesia,
y
Nigeria
KDL-26EX423
RM-GD020 Saudi Arabia, Nigeria
KDL-32EX420
RM-GD020 Sogul Area, Singapore, Indonesia, Vietnam,
Phillippines, India, Thailand, Malaysia, Australia,
NewZealand
RM GD020 CD013
Ti H K S lA Si
KDL
-
46EX520
RM GD020,
CD013
Taiwan,
Sogul
Area,
Singapore,
Indonesia,
Vietnam, Phillippines, India, Thailand,
Malaysia, South Africa, Australia, New
Zealand, Saudi Arabia, Nigeria, Iran,
Pakistan
KDL-46EX523
RM-GD020 Iran, Saudi Arabia, Nigeria
KDL-32EX520
RM
-
GD020
,
CD013
T
a
i
wan,
H
ong
K
ong,
S
ogu
l
A
rea,
Si
ngapore,
Indonesia, Vietnam, Phillippines, India, Thailand,
Malaysia, South Africa, Australia, New Zealand,
Saudi Arabia, Nigeria, Iran
KDL-32EX523
RM-GD020 Iran, Saudi Arabia, Nigeria

TABLE OF CONTENTS
KDL- 22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL- 22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020
S
ection Title Page
1. SAFETY NOTES
1-1. Caution Handling of LCD Panel ........................……………..…...................... 3
1-2. Safety Check Out ......................................…………...………….........................
.
3
1-3. Leakage Tes t ........................................................................................................
.
3
1-4.
How to find a
g
ood earth
g
round ......................................………… 4
Section Title Page
5. DIAGRAMS
5-1. Block Diagram ……………........................................................................................ 56
5-2. Wire Dressing
5-2-1. KDL-22EX420, 22EX423 ................................................................................. 60
5-2-2. K DL-26EX420, 26EX423 ................................................................................. 61
gg
1-5. WARNING and Caution ....................................................................................... 4
1-6. Lead Free Inform ation ......................................................................................... 4
1-7. Information regarding Bezel and Panel………………………………………
…
6
2. SELF DIAGNOSTIC FUNCTION
2-1. Overview of Control Buttons ……………...........................................................
.
16
22
LED Display Specification
16
,
5-2-3. KDL-32EX420, 32EX520, 32EX523 ...............................................................62
5-2-4. K DL-40EX520, 40EX523………………………………………….................. 63
5-2-5. K DL-46EX520, 46EX523………………………………………...................... 64
5-3. Connector Diagram ..................……………………………………………………65
5-4. Circuit Board Location
5-4-1. KDL-22EX420, 22EX423 ................................................................................. 68
5-4-2 KDL-26EX420 26EX423 68
2
-
2
.
LED
Display
Specification
..................................................................................
.
16
2-3. LED Display Control ............................................................................................
.
16
2-4. LED Pattern ...........................................................................................................
.
17
2-5. Standby LED Error Dis play ................................................................................. 17
2-6. Triage Chart ........................................................................................................... 18
3. TROUBLE SHOOTING
5-4-2. KDL-26EX420, 26EX423 ................................................................................. 68
5-4-3. KDL-32EX420, 32EX520, 32EX523 ...............................................................68
5-4-4. K DL-40EX520, 40EX523………………………………………….................. 68
5-4-5. K DL-46EX520, 46EX523………………………………………...................... 68
6. DISASSEMBLY, EXPLODED VIEWS AND OTHER PARTS
6-1. KDL-22EX420, 22EX423 ................................................................................. 69
62 KDL 26EX420 26EX423 73
3-1. Power Problem …………..................................................................................... 19
3-2. Standby Led Blinking ........................................................................................... 19
3-3. Power (Green) LED Blinking............................................................................... 27
3-4. No Picture …………………………………………………….............................
.
28
3-5. No Sound ………………………………………………………………………
…
30
3-6. TV Comm ander and Keys Malfunction ........................................................ 30
3
-
7.
Network Malfunction……………………………………......................................
33
6-2. KDL-26EX420, 26EX423 ................................................................................. 73
6-3. KDL-32EX420, 32EX520, 32EX523 ...............................................................76
6-4. KDL-40EX520, 40EX523………………………………………………………79
6-5. KDL-46EX520, 46EX523………………………………………….................. 82
6-6. Other Parts .....................................................……………………….............…85
O
PERATIN
G
IN
S
TRU
C
TI
O
N
S
37.
Network
Malfunction……………………………………......................................
33
3-8.
Camera Malfunction ………………………………………………………
35
3-9. 3D Malfunction…………………………………………………………………… 36
3-10. HDD-Rec Malfunction …………………………………………………………
…
37
3-11. Skype Trouble Shooting Flow …………………………………………………
…
38
3-12. Trouble Shooting Reference …………………………………………………
…
40
4 SERVICE ADJUSTMENTS
4
.
SERVICE
ADJUSTMEN TS
4-1. Acces s ing Self Diagnostic Menu …………....................................................... 46
4-2. Accessing Service Mode ..................................................................................... 47
4-3. Transition of Each Module in Service Mode …………....................................
.
47
4-4. Change Data by Service Mode 1 ……………………………………………… 48
4-5. Change Data by Service Mode 2 ……………………………………………… 49
4-6. White Balance Adjustment ……………………………………………………
…
50
4-7. Restore White Balance /Gamma Adj-data to B Board ……………………
…
51
4-8. Change the Emitter Output Level ……………………………………………
…
51
4-9.
Viewing VCOM Test Pattern ……………………………………………
…
52
4-10. How to do Shipping Condition ………………………………………………
…
53
4-11. Remote Commander Function………………………………………………
…
53
4-12
Index Flow of Service Control
54
4-12
.
Index
Flow
of
Service
Control
…………………………………………………
…
54
2

SAFETY NOTES
SECTION 1
KDL- 22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL- 22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020
1-1. Caution Handling of LCD Panel
When repairing the LCD Panel, make sure you are grounded with a wrist band.
When repairing the LCD Panel on the wall, the panel must be secured using the 4
mounting holes on the rear cover.
1) Do not press the panel or frame edge to avoid the risk of electric shock.
3)Check all control knobs, shields, covers, ground straps and mounting
hardware have been replaced. Be absolutely certain you have replaced all
the insulators.
4) Look for unauthorized replacement parts, particularly transistors that were
installed during a previous repair. Point them out to the customer and
2) Do not scratch or press on the panel with any sharp objects.
3) Do not leave the module in high temperature or in areas of high humidity for
an extended period of time.
4) Do not expose the LCD panel to direct sunlight.
5) Avoid contact with water. It may cause short circuit within the module.
6
) Disconnect the AC
power
when replacing the backlight (CCFL) or
recommend their replacement.
5) Look for parts which, though functioning show obvious signs of deterioration.
Point them out to the customer and recommend their replacement.
6) Check the line cords for cracks and abrasion. Recommend the replacement
of any such line cord to the customer.
7) Check the antenna terminals metal trim
metallized
knobs screws and all
6
)
Disconnect
the
AC
power
when
replacing
the
backlight
(CCFL)
or
inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms)
7) Always clean the LCD panel with a soft cloth material.
8) Use care when handling the wires or connectors of the inverter circuit.
Damaging the wires may cause a short circuit.
9) Protect the panel from ESD to avoid damaging the electronic circuit
7)
Check
the
antenna
terminals
,
metal
trim
,
metallized
knobs
,
screws
and
all
other exposed metal parts for AC leakage. Check leakage test as described
next.
8. For safety reasons, repairing the Power board and/or Inverter board is prohibited.
(C-MOS).
10) During the repair, DO NOT leave the Power On or Burn-in period for more than
1 hour while the TV is face down on a cloth.
1-3. Leakage Test
The AC leakage from any exposed metal part to earth ground and from all exposed
metal parts to any exposed metal part having a return to chassis must not exceed
0.5mA (500 microamperes).
Leakage current can be measured by any one of the three methods:-
1 A commercial leakage tester such as the SIMPSON 229 or RCA WT
-
540A
1
.
A
commercial
leakage
tester
such
as
the
SIMPSON
229
or
RCA
WT
540A
.
Follow the manufacturers instructions to use those instructions.
2. A battery-operated AC milliampmeter. The DATA PRECISION 245 digital
multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM or battery
operated AC voltmeter. The 'limit' indication is 0.75V so analog meters must
have an accurate low voltage scale. The SIMPSON'S 250 and SANWA
SH-63TRD are examples of passive VOMs that are suitable. Nearly all
battery operated digital multimeters that have a 2 VAC range are suitable.
(see Figure 2.)
Figure 1. TV is face down on a cloth during reparing
1-2. Safety Check-Out
After correcting the original service problem, perform the following safety checks
before releasing the set to the customer:-
1) Check the area of your repair for unsoldered or poorly soldered connections.
Check the entire board surface for solder splashes and bridges.
2) Check the interboard wiring to ensure that no wires are pinched or contact
high-wattage resistors. Figure 2. AC voltmeter to check AC leakage
3

Safety Notes KDL- 22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL- 22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020
1-4. How to Find a Good Earth Ground
A cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw
on most AC outlet boxes is also at earth ground.
If the retaining screw is to be used as your earth ground, verify that it is at ground
by measuring the resistance between it and a cold-water pipe with an ohmmeter.
c) Be sure to follow these guidelines to protect your property and avoid causing
serious injury.
• Carry the TV with an adequate number of people; larger size TVs require
two or more people.
The reading should be zero ohms.
If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble- light (not
a neon lamp) between the hot side of the receptacle and the retaining screw. Try
both slots, if necessary, to locate the hot side on the line; the lamp should light at
normal brilliance if the screw is at ground potential (see Figure 3).
two
or
more
people.
• Correct hand placement while carrying the TV is very important for safety
and to avoid damages.
d) Components identified by shading and ! mark on the schematic diagrams,
exploded views, and in the parts list are critical for safe operation. Replace
these components with Sony parts whose part numbers appear as shown in
these
components
with
Sony
parts
whose
part
numbers
appear
as
shown
in
this manual or in supplements published by Sony. Circuit adjustments that
are critical for safe operation are identified in this manual. Follow these
procedures whenever critical components are replaced or improper
operation is suspected.
1-6. Lead Free Information
The circuit boards used in these models have been processed using Lead Free
Solder. The boards are identified by the LF logo located close to the board
designation.
Figure
3 Checking for earth ground
designation.
Figure
3
.
Checking
for
earth
ground
.
1-5. Warnings and Caution
a) These servicing instructions are for use by qualified service personnel only.
Td thikfltihkd tf ii thth
Figure 4: LF
Logo
T
o re
d
uce
th
e r
i
s
k
o
f
e
l
ec
t
r
i
c s
h
oc
k
,
d
o no
t
per
f
orm any serv
i
c
i
ng o
th
er
th
an
that contained in the operating instructions unless you are qualified to do so.
b) An isolation transformer should be used during any service to avoid possible
shock hazard, because of live chassis. The chassis of this receiver is directly
connected to the ac power line.
Figure 5: LF logo on circuit board
4

Safety Notes
The servicing of these boards requires special precautions. It is strongly
recommended to use Lead Free Solder material in order to guarantee optimal
quality of new solder joints. Lead Free Solder is available under the following
part numbers:-
Due to high melting point of Lead Free Solder, the soldering iron tip
temperature needs to be set to 370 degrees centigrade. This requires
soldering equipment capable of accurate temperature control coupled
with a good heat recovery characteristics.
For more information on the use of Lead Free Solder,
please refer to http://www.sony-training.com
Part Number Diameter Remarks
7-640-005-19 0.3mm 0.25Kg
7-640-005-20 0.4mm 0.50Kg
7-640-005-21 0.5mm 0.50Kg
7-640-005-22 0.6mm 0.25Kg
7-640-005-23 0.8mm 1.00Kg
7-640-005-24 1.0mm 1.00Kg
7-640-005-25 1.2mm 1.00Kg
7-640-005-26 1.6mm 1.00Kg
5
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

2. Peel off double sided tape
To peel off double sided tape between bezel assembly and panel, push bezel down
and pull panel up. Prohibited pushing panel from front side for prevention break panel.
(1)Hook off LED board to be easy peel off
(2)Put hand into between bezel and Panel from side,
pull panel up and push down bezel like picture.
Should pull up
metal area,
should not cell area.
(3)Moving hand peeling by peeling to pull up and push
down near the tape.
Moving hands
step by step
1-7-1. Notice when LCD panel peel off from bezel assembly
Peel off double sided tapes between bezel assembly and LCD panel when
exchanging LCD panel, etc, allow below instruction.
1. Put off “Bracket, Panel”
Put off “Bracket, Panel” with pushing bezel hook. The position shows on
following pages.
Pushing hook
Put off
1-7. Information regarding Bezel and Panel
Safety Notes
6
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

1-7-2. Exchange double sided tapes
Because double sided tape’s strength weaken when tapes once peeled off, peel off
all tapes from bezel assembly, and stick new ones.
1. Peel off double sided tapes from bezel.
(Possibly remain on panel side)
2. Stick double sided tapes
Double sided tapes
32～46”
Name: DOUBLE SIDED TAPE (PANEL)
P/N: 4-272-200-01
Vendor: Chiyoda integre
55”, 60”
Name: DOUBLE SIDED TAPE (PANEL 10)
P/N: 4-281-014-01
Vendor: Chiyoda integre
Stick double sided tapes as shown in following
pages. Peel off separate papers before panel
puts on.
Safety Notes
7
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

While pay attention to double sided tapes, put panel on to bezel assembly as below.
(1)Put from upper side
adjusting position to L/R side)
(2) Down panel on to bottom
caring about fitting bezel
position ribs and panel cutout
area.
(1)Put on upper side
(2)Put down
Care about positioning rib (L&R)
1. Putting Panel on to bezel
2. Putting on “Bracket, panel”
Put brackets and confirm fixed
by hook.
Position of BRACKET, PANEL
show on following page.
1-7-3. Putting Panel on to Bezel
Safety Notes
8
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

Peel off double sided tapes between bezel assembly and LCD panel when exchanging LCD panel, etc, allow below instruction.
2. Peel off double sided tape
To peel off double sided tape between bezel assembly and panel, push bezel down and pull
panel up.
Prohibited pushing panel from front side for prevention break panel.
1. Release hooks of Bezel
(2)Moving hand peeling by peeling
to pull up and push down near the tape.
Please release hooks of top and side. And install a
cushion to avoid hooks restored.
Top
Side (L &R)
Cushion
(1)Pull Panel up and push down Bezel
like picture.
1-7-4. Notice when LCD panel peel off from bezel assembly
Safety Notes
9
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

Because double sided tape’s strength weaken when tapes once peeled off,
peel off all tapes from bezel assembly, and stick new ones.
1. Peel off double sided tapes from Panel. (Possibly remain on Bezel side) 2. Stick double sided tapes
Double sided tapes
22”,24”,26"
Name: DOUBLE SIDED TAPE (PANEL)
P/N: 4-272-200-01
Vendor: Chiyoda integre
Stick double sided tapes as shown in following pages.
Peel off separate papers before panel puts on.
1-7-5. Exchange double sided tapes
Safety Notes
10
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

While pay attention to double sided tapes, put panel on to bezel assembly as below.
(1)Put from upper side adjusting position to L/R side)
(2) Down panel on to bottom caring about fitting bezel position ribs and panel cutout
area.
1. Putting Panel on to bezel 2. Lock with hooks of Bezel
Please lock Panel with hooks of Bezel.
Position of Hooks show on following page.
1-7-6. Putting Panel on to Bezel
Safety Notes
11
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

Double sided tapes on bezel assembly (ornament) for panel is attached as below
22 inch
1position
DOUBLE SIDED TAPE (PANEL)
5x440mm t=0.4
24 inch
2position
DOUBLE SIDED TAPE (PANEL)
5x240mm t=0.4
26 inch
2position
DOUBLE SIDED TAPE (PANEL)
5x240mm t=0.4
1-7-7. Location of double sided tape for each inches
32”
32 inch
2position
DOUBLE SIDED TAPE (PANEL)
5x290mm t=0.4
40” 40 inch
2position
DOUBLE SIDED TAPE
(PANEL)
5x380mm t=0.4
37”
37 inch
2position
DOUBLE SIDED TAPE (PANEL)
5x350mm t=0.4
46”
46 inch
3position
DOUBLE SIDED TAPE
(PANEL)
5x290mm t=0.4
55”
55 inch
3position
DOUBLE SIDED TAPE
(PANEL 10)
10x350mm t=0.4
60”
60 inch
3position
DOUBLE SIDED TAPE
(PANEL 10)
10x385mm t=0.4
Not applicable for this booklet
Not applicable for this booklet
Not applicable for this booklet Not applicable for this booklet
Safety Notes
12
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

22”
24”
26”
1-7-8. Location of PANEL Hook
Not applicable for this manual
Safety Notes
13
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

32” 40”
37” 46”
BRACKET, PANEL on bezel assembly for panel is put in as below
BRACKET, PANEL (H)
2position
BRACKET, PANEL (C)
3position
BRACKET, PANEL (H)
2position
BRACKET, PANEL (C)
4position
BRACKET, PANEL (H)
2position
BRACKET, PANEL (C)
4position
BRACKET, PANEL (H)
2position
BRACKET, PANEL (C)
6position
1-7-9. Location of BRACKET, PANEL
Not applicable for this booklet
Safety Notes
14
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

55”
60”
BRACKET, PANEL (M)
15position
BRACKET, PANEL (M)
15position
BRACKET, PANEL (M)
BRACKET, PANEL (C)
BRACKET, PANEL (H)
Not applicable for this manual
Not applicable for this manual
Safety Notes
15
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020
1-7-9. Location of BRACKET, PANEL

2-1. Overview of Control Buttons
SECTION 2
SELF DIAGNOSTIC FUNCTION
1
2
3
4
5
Power
Program
Volume
Input Select/
Home
Enter
6789
Remote
Sensor Picture Timer Off/Standby
Indicator Power Indicator
16
Status
Pic off /
Connecting /
Timer
Standby Pow er / REC Blinking Pattern
POWER O N Of f Of f Green
Standby
(by Remote Control Off)
Of f Red Lit Of f
Self Diagnosis Of f Red Blink Of f
Refer to Blinking
Pattern of Self
Diagnosis Mode
End of the Aging Mode Of f Of f Green Blink 3sec On / 3sec Off
Aging Mode Of f Of f Green Blink
0.5sec On / 0.5sec
Of f
Softw are Updating Orange Blink Red Lit Of f 5sec On / 1sec Off
Softw are Update Finish Orange Lit Of f Green Lit
Test Reset Orange Lit Red Lit Green Lit
Error on Panel ID Orange Blink Of f Green Blink
0.5sec On / 0.5sec
Of f
(REC)(Sleep Timer)(Pow er
ON)
Orange Of f Red
(Picture Off) (On Timer)
(REC) (Pow er On)
Green Of f Red
LED Type Description Remark
POWER
Green: LED
Red : LED
Green lights at Pow er On.
Red lights w hen recording (Japan and Europe models only)
STA NDBY Red:One LED Red lights during standby
Timer/ Pic Of f
Orange/Green:
Tw o LEDs
Green Lights during Picture Off and Orange Lights during Timer Activation.
2-2. LED Display Specification
2-3. LED Display Control
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

2-5. Standby LED Error Display
Self Diagnostic Function
Blinking
Times
Error Countermeasure t o replaced either / all
2Main Power Error
Panel ID NVM Error
6Backlight Error
7Temperature Error
8Software Error
9Reserved
Reserved
10
Emitter Board Power
Error
Not applicable for this manual
5
4
3
Main Board / DC Alert
Error / A udio Error
Balancer Error / M M
SPI Error / VLED Error
Not applicable for this manuall
Tcon Error / HFR E rror /
FRC No
Not applicable for this manuall
Power Supply Board
Main Board
Main Board
Power Supply Board
Main Board
Panel
Main Board
Wifi (Not applicable for this manual)
Main Board
Tc o n
Panel Module
17
2-4. LED Pattern
When safety shutdown occurs, Standby LED display reports the cause by using
the lighting patterns as indicated below.
Example:The figure above shows LED display when SHUTDOWN is caused by
Balancer Error. It repeats flashing for a specified number of times in 0.5sec/cycle
and has a 3 seconds interval of lighting off. Please note that a 3 second interval
of lighting off is fixed regardless of abnormal state types.
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020

2-6. Triage Chart
Self Diagnostic Function
Segment Size B* Board
Type
G* Board
Type
H* Board
Type
P-1 22 BAT-S G1A HLR2
P-1 26 BAT-S G1B HLR2
P-1 32 BAT-V GE2A HLR2
P-1 40 BAT-V GE3A HLR2
P-1 46 BAT-V GE3A HLR2
18
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020
Green LED
Blinking
No
Power Remote Network Audio Skype
2 3 4 5 6 7 8 10
Green LED
non-stop
Blinking
No Green Power
LED (Dead Set)
Stationary
colored
lines or
dots
No video
One of
Inputs
No video
all Inputs No Remote
Wireless
can't connect No A udio
Skype
Can't Work
B* BOARD
▲l▲ ▲ ▲ l l ▲▲▲l l ▲ ▲ l▲
G* BOARD
l▲▲▲ l▲l▲
H* B OARD（ IR）
▲l l
RF Module（ RF）
l
SPEAKER
▲l
Skype Module
l
Wifi Module
l l ▲
LD B OARD**
l▲
LVDS CABLE
▲ ▲ ▲ ▲
TCON
l▲
LCD Panel
l l ▲l l
POWER POWER POWER
PANEL
(TCON)
PANEL
(Backlight)
TEMP EMIT-TER
AUDIO
FAN
(N/A)
*
Not applicable for this manual
Doubtful Part
Few Possibility
Reference
Symptoms - Shutdown. Power LE D
blinking red diagnostics sequences
Video
- missing or distorted
Problem
***
*
*
*
Skype
**
*
*
*
*

No Power
Check STBY 3.3V
at 10 pin of CN6001
on the B* Board
Harness
G* Board
Replace the Harness
Between G* Board and
B* Board
Turn on the Switch
B* Board
Check
*Power Saving Switch
NG
OK
NG
SW OFF
SW ON
*Power Saving Switch：Only for BAT-L model
(2b-1,2b-2,3a-1)
2-times blinking
Check REG12V at
pins 2/3 of CN6001 on
the B* Board
B* Board
Harness
G* Board
Replace the Harness
Between G* Board and
B* Board
NO 12V
12V OK
NG
SECTION 3
TROUBLESHOOTING
3-1. Power Problem
Symptom
improvement
Symptom
improvement
Segment Size B* Board Type G* Board Type
P-1
22 BAT-S G1A
26 BAT-S G1B
32 BAT-V GE2A
40 BAT-V GE3A
46 BAT-V GE3A
Note: B* and G* Board
3-2-1. 2-times blinking (Main Power Error)
3-2. Standby LED Blinking
19
KDL-22, 26 EX420, 32,40,46 EX520
RM-GD020, CD013
KDL-22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
RM-GD020