Sony KDL-22EX420 / KDL-26EX420 / KDL-32EX420 / KDL-32EX520 / KDL-32EX523 / KDL-40EX520 / KDL-40EX523 / KDL-46EX520 / KDL-46EX523 Service Manual ▷ View online
SEGMENT: P-1
MODEL
KDL 22EX420
SEGMENT: P 1
PART NO. : 9-888-126-06
MODEL
KDL 40EX520
KDL-22EX420
KDL-22EX423
KDL-26EX420
KDL-26EX423
KDL-22EX423
KDL-26EX420
KDL-26EX423
KDL-40EX520
KDL-40EX523
KDL-46EX520
KDL-46EX523
KDL-40EX523
KDL-46EX520
KDL-46EX523
KDL-32EX420
KDL-32EX520
KDL-32EX523
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)
Part Information Change
(Cover Page, Page 80, 83, 88, 89)
Remote Commander Picture Change
(Page 46 ~ 53)
6
06
2014/05
SUPP 2
U d t d St
d I f
ti
f
KDL 32EX420 (A
/NZ) (
P 76 78)
5
-05
2011/05
CORR-3
6
-06
2014/05
SUPP-2
Updated Stand Information for KDL-32EX420 (Aus/NZ) (
Pg 76~78)
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.
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,
Malaysia, South Africa, Australia, Saudi Arabia,
Malaysia, South Africa, Australia, Saudi Arabia,
Indonesia, Vietnam, Phillippines, India,
Thailand, Malaysia, South Africa, Australia,
New Zealand, Saudi Arabia, Nigeria,
Thailand, Malaysia, South Africa, Australia,
New Zealand, 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,
New Zealand
New Zealand
RM GD020 CD013
T i
H
K
S
l A
Si
KDL-46EX520
RM GD020, CD013 Taiwan, Sogul Area, Singapore, Indonesia,
Vietnam, Phillippines, India, Thailand,
Malaysia, South Africa, Australia, New
Zealand, Saudi Arabia, Nigeria,
Malaysia, South Africa, Australia, New
Zealand, Saudi Arabia, Nigeria,
Iran,
Pakistan
KDL-46EX523
RM-GD020
Iran,
Saudi Arabia, Nigeria
KDL-32EX520
RM-GD020, CD013 Taiwan, Hong Kong, Sogul Area, Singapore,
Indonesia, Vietnam, Phillippines, India, Thailand,
Malaysia, South Africa, Australia, New Zealand,
Saudi Arabia, Nigeria,
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
Section Title
Page
1. SAFETY NOTES
1-1.
Caution Handling of LCD Panel ........................……………..…...................... 3
1-2.
Safety Check Out ......................................…………...………….......................... 3
1-3.
Leakage Test ......................................................................................................... 3
1-4.
How to find a good earth ground ......................................…………
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
g
g
1-5.
WARNING and Caution ....................................................................................... 4
1-6.
Lead Free Information ......................................................................................... 4
1-7.
Information regarding Bezel and Panel………………………………………… 6
2. SELF DIAGNOSTIC FUNCTION
2-1.
Overview of Control Buttons ……………............................................................ 16
2 2
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 Display ................................................................................. 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
6 2
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 Commander 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
OPERATING INSTRUCTIONS
3 7.
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 ADJUSTMENTS
4-1.
Accessing 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
