AN ISOLATION TRANSFORMER SHOULD BE USED DURING ANY
SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD DUE TO
LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS DIRECTLY
CONNECTED TO THE POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARKED ON
THE 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
THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
- 2 -
PartnumberDiameterRemarks
7-640-005-190.3mm0.25Kg
7-640-005-200.4mm0.50Kg
7-640-005-210.5mm0.50Kg
7-640-005-220.6mm0.25Kg
7-640-005-230.8mm1.00Kg
7-640-005-241.0mm1.00Kg
7-640-005-251.2mm1.00Kg
7-640-005-261.6mm1.00Kg
SECTION 1 GENERAL
How to replace the fuse.
Open the fuse compartment with
a screwdriver blade and replace
the fuse.
FUSE
ASA
T
mark.
SECTION 1 GENERAL
CAUTION
Lead Free Soldered Boards
example
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 e.g. H1 etc [ see example ]. The
servicing of these boards requires special precautions to be taken as
outlined below.
Lead Free Solder material must be used to comply with environmental requirements of new solder joints. Lead Free Solder is available
under the following part numbers :
Due to the higher 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
UK PLUG WARNING
WARNING (UK Models only)
The flexible mains lead is supplied connected to a B.S. 1363 fused
plug having a fuse of the correct rating for the set. Should the fuse
need to be replaced, use a fuse of the same rating approved by ASTA
to BS 1362, ie one that carries the
IF THE PLUG SUPPLIED WITH THIS APPLIANCE IS NOT SUITABLE
FOR THE OUTLET SOCKETS IN YOUR HOME, IT SHOULD BE CUT
OFF AND AN APPROPRIATE PLUG FITTED. THE PLUG SEVERED
FROM THE MAINS LEAD MUST BE DESTROYED AS A PLUG WITH
BARED WIRES IS DANGEROUS IF ENGAGED IN A LIVE SOCKET.
When an alternative type of plug is used, it should be fitted with the
correct rating fuse, otherwise the circuit should be protected by the
same rating fuse at the distribution board.
mark.
LCD PANEL CAUTION
Whilst working on this product, it is not recommended to lay the TV set face down when powered up, as this can result in panel problems.
If it is necessary to power up the TV set when face down, the time should be minimised as much as possible.
- 3 -
SPECIFICATIONS
Model nameKDL-
46EX4xx
KDL-40BX4/
EX4/NX5xx
KDL37EX4xx
KDL-32BX3/
BX4/EX3/EX4/
NX5xx
KDL26EX3xx
KDL22EX3xx
System
Panel System
LCD (Liquid Crystal Display) Panel
TV System
Depending on your country/region selection
Analogue: B/G/H, D/K, L, I
Digital: DVB-T, DVB-C
Colour/Video System
Analogue: PAL, PAL60 (only video input), SECAM, NTSC3.58, NTSC4.43 (only video input)
Digital: MPEG-2 MP@ML/HL, H.264/MPEG-4 AVC HP@L4.0, MP@L3.0
Channel Coverage
Analogue: 46.25 - 855.25 MHz
Digital: VHF/UHF
Sound Output
10 W + 10 W (RMS)8 W + 8 W
(RMS)
5 W + 5 W
(RMS)
Input/Output jacks
Aerial
75 ohm external terminal for VHF/UHF
/AV1*
1
21-pin scart connector including audio/video input, RGB input, S-Video input, and Analogue TV audio/video
output.
/AV2*
2
21-pin scart connector including audio/video input, RGB input, S-Video input, and audio/video output.
02Power Supply Protection error.In normal and factory mode.Goes into standby.
03Audio error.In normal and factory mode.Goes into standby.
04Balancer error.In normal and factory mode.Goes into standby.
05Panel Error & Panel ID errorIn normal and factory mode.Goes into standby.
06Inverter error.In normal and factory mode.Goes into standby.
13NVM error.In initialisation state.Adds error to error menu.
14I2C error.In normal and factory mode.Adds error to error menu.
15Tuner error.In initialisation state.Adds error to error menu.
16DVB-T/C Demod error.In initialisation state.Adds error to error menu.
18USB error.In normal and factory mode.Adds error to error menu.
19CI error.In normal and factory mode.Adds error to error menu.
The identification of errors within the AZ1-N chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the
event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous flashing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device
number will be displayed through the LED (Series of flashes which must be counted).
LED Error Codes and Descriptions
Ver 4.0
Resetting Error Codes (OSD Service Menu)
1. If Software version of the set is older than M8R31 (M8.311), update to latest version.
2. Power Off / Power ON.
3. Apply TT19.
4. Apply TT08. TV switches off and then restarts.
5. Confirm error had disappears.
Note: TT19 is necessary if Factory mode is not enabled.
When Factory Mode is enabled “F” is shown on top right of the screen in TT mode.
- 8 -
SECTION 2 DISASSEMBLY
2-1. Rear Cover Removal2-2. Stand Assy Removal
=>
1
=>
1
=>
1
Remove the rear cover fixing screws indicated and then
carefully pull the ‘Rear Cover’ away from the back of the
TV set.
To remove the ‘Loudspeaker’ first disconnect the
loudspeaker connectors and then remove the 2 screws
circled. Finally gently pull the ‘Loudspeaker’ out of the
speaker bracket.
- 9 -
2-5. Under Cover Removal
2-6. Static Converter Board Removal
Screws
To remove the ‘Under Cover’ first remove the ‘Rear Cover’
(See Sec 2-2-1) and then the ‘Stand Assy’ (See Sec 2-2-2).
The ‘Under Cover’ can then be gently pulled away from
the back of the TV set.
To remove the ‘Static Converter’ board disconnect all
connectors and then remove the 4 screws circled and ease the
board gently away from the back of the TV set.
Screw Part number(s) and Description(s)
2-580-629-01 SCREW, +BVST 3X8
2-8. HLR Board Removal2-7. BEN Board Removal
Clips
Screws
To remove the ‘BEN’ board disconnect all connectors and
then remove the 4 screws circled and ease the board gently
away from the back of the TV set.
Screw Part number(s) and Description(s)
2-580-629-01 SCREW, +BVST 3X8
To remove the ‘HLR’ board first remove the ‘Speaker Bracket’
(See 2-2-3), then disconnect the 1 connector on the ‘HLR’
board and release the 2 clips circled and ease the board gently
away from the back of the TV set.
Service adjustments to this model can be performed using the
supplied Remote Commander (See front cover).
1. Turn on the power to the TV set.
2. Press the following sequence of buttons on the Remote
Commander.
3. The following menu appears on the screen (See Pic.1).
Pic.1
3-2. Service Menu Structure
The following descriptions show the items that can be
viewed and/or adjusted using the Service Menu.
3-2-1. Service General Menu
The following menu appears on the screen when you enter
the ‘Service General Menu’ (See Pic.2). This menu allows
you to view the product information, set the TV into Aging
Mode and perform Software Upgrade to the TV set.
Pic.2
4. Move to the corresponding adjustment item using the
‘ ’ or ‘ ’ arrow buttons on the Remote Commander.
5. Press the ‘ ’ arrow button to enter into the required menu
item.
6. Adjust the data value using the ‘ ’ or ‘ ’ arrow buttons on
on the Remote Commander.
7. To go back at any time press the ‘Return’ button on the Remote
Commander.
Ensure you return to the top level menu, shown above in
8.
Pic 1, and press the Green button on the Remote
Commander to Store all the adjustments.
9. Press the Red button or ‘Menu’ button on the Remote
Commander to quit the Service Mode when all adjustments
have been completed.
After carrying out the service adjustments, to prevent the
customer accessing the ‘Service Menu’ switch the TV set
OFF and then ON again.
3-2-2. White Balance Adjustment
The following menu appears on the screen when you enter
the ‘White Balance Adjustment’ menu (See Pic.3). This menu
allows adjustment of the TV picture levels. These adjustments
are set during manufacture and should not normally require
further adjustment.
The following menu appears on the screen when you enter
the ‘OSD Service Menu’ (See Pic.4). This menu allows
viewing and adjustment of the AGC and viewing of the
Sound Status.
Pic.4
The following menu appears on the screen when you enter
the ‘Country Selection’ menu (See Pic.5). Using this menu
the destination country of the TV can be set.
Pic.5
3-2-5. Factory Reset
Selection of ‘Factory Reset’ (See Pic.6) allows the TV to be
reset to factory shipping condition. This will restore all
settings to those which were contained in the TV on first
shipment.
Pic.6
- 12 -
3-3. TT MODE
i+
5
+
(ON SCREEN (DIGIT 5) (VOLUME +) (TV) DISPLAY)
00
'TT' mode off
03
Set volume to 35%
04
Set volume to 50%
05
Set volume to 65%
06
Set volume to 80%
07
Ageing mode on
08
Shipping Condition
09
WB Levels Check
11
Panel_id A
12
Panel_id B
15
Speaker_id A
16
Speaker_id B
19
Factory toggle mode (ON/OFF)
27
CBA mode toggle (ON/OFF)
31
ECS mode toggle (ON/OFF)
32
Set DVB-T channel table
33
Set DVB-C channel table
36
Full HD HDMI EDID Write
37
WXGA HDMI EDID Write
41
Re-initialise NVM
43
Select Dual Sound "A"
44
Select Dual Sound "B"
45
Select Dual Sound "Mono"
46
Select Dual Sound "Stereo"
48
Set NVM as non-virgin
49
Set NVM as virgin
51
Clear authenticated CAM History
52
Clear service shunning cache
53
Enable/Disable DVB-C manual tuning
75
Set Centred Balance
76
Set Volume to Max
77
Set Volume to Min
78
Set Balance Full Left
79
Set Balance Full Right
81
Digital BER Display
84
TS CI Path Through
87
Front Panel Button Test
89
LED Test
92
TS CI Path Through With Reed Solomon Off
The TT modes described below are available by selecting the two
relevant digits. You can exit the ‘TT Mode’ by entering 00, by
pressing the ‘Analog’ or the ‘Digital’ button, by switching the TV
set into stand-by mode, or by powering the TV set off.
Note :
To place the Remote Commander in ‘TT Mode’ press the
following buttons together for approximately five seconds.
(EXTERNAL INPUT) (DIGIT 5) (VOLUME +)
(ON SCREEN
DISPLAY)
(DIGIT 5)(VOLUME +)
To use the Remote Commander in ‘TT Mode’ press the
‘Rewind’ button on the Remote Commander twice.
Rewind Button
TT will then appear in the bottom right hand corner of the TV.
To take the Remote Commander out of ‘TT Mode’ press the
same buttons together for approximately five seconds.
- 13 -
5-2.CIRCUITBOARDLOCATION
5-3.SCHEMATICDIAGRAMSANDPRINTEDWIRINGBOARDS
Note :
• All capacitors are in µF unless otherwise noted.
• pF : µµF 50WV or less are not indicated except for
electrolytic types.
• Indication of resistance, which does not have one for
rating electrical power, is as follows.
Pitch : 5mm
Electrical power rating : 1/4W
• Chip resistors are 1/10W
• All resistors are in ohms.
k = 1000 ohms, M = 1000,000 ohms
•: nonflammable resistor.
•: fusible resistor.
•: internal component.
•: panel designation or adjustment for repair.
• All variable and adjustable resistors have
characteristic curve B, unless otherwise noted.
• All voltages are in Volts.
• Readings are taken with a 10Mohm digital mutimeter.
• Readings are taken with a color bar input signal.
• Voltage variations may be noted due to normal production
tolerences.
•: B + bus.
•: B - bus.
•: RF signal path.
•: earth - ground.
•: earth - chassis.
Reference Information
RESISTORRN
: METAL FILM
RC
: SOLID
FPRD
: NON FLAMMABLE CARBON
FUSE
: NON FLAMMABLE FUSIBLE
RS
: NON FLAMMABLE METAL OXIDE
RB
: NON FLAMMABLE CEMENT
RW
: NON FLAMMABLE WIREWOUND
: ADJUSTMENT RESISTOR
COILLF-8L
: MICRO INDUCTOR
CAPACITOR TA
: TANTALUM
PS
: STYROL
PP
: POLYPROPYLENE
PT
: MYLAR
MPS
: METALIZED POLYESTER
MPP
: METALIZED POLYPROPYLENE
ALB
: BIPOLAR
ALT
: HIGH TEMPERATURE
ALR
: HIGH RIPPLE
Les composants identifiés par une trame et
par une marque sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
Note :
The components identified by shading
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
Note :
CVMBoard
ABoard
S1Board
VM
C
H
D1
A
J
A2
N
D
A1
D2
C
A
4-2. CIRCUIT BOARD LOCATION
STATIC CONVERTER
BEN
HLR
4-3. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
Note :
The components identified by mark
confidential information.
Strictly follow the instructions whenever the
components are repaired and/or replaced.
contain
- 15 -
NOTE :
SECTION 5
EXPLODED VIEWS
Non-serviceable items with no part number and no
description are not stocked because they are not
required for routine service.
The construction parts of an assembled part are indicated
with a collation number in the remarks column.
5-1. CHASSIS
12
Items marked “*” are not stocked
since they are seldom required for
routine service. Some delay should
be anticipated when ordering these
items.
3
4
6
10
9
Note :The components identified by mark
contain confidential information.
Strictly follow the instructions when
ever the components are repaired
and/or replaced.
all boards are regarded as non service items for exchange only and are not indicated in the parts list of this
service manual.
To ensure safety and reliability it is Sony policy that boards should not be repaired in the field, as a result
Note : Items marked “*” are not stocked since they are seldom required for routine service.
Some delay should be anticipated when ordering these items.