Design and specifications are subject to change without notice.
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PC Input Signal Reference Chart
Horizontal
Signals
VGA64048031.560VGA
SVGA80060037.960VESA Guidelines
XGA102476848.460VESA Guidelines
WXGA128076847.460VESA
rizo
(Pixel)
Vertical (Line)
64048037.575VESA
72040031.570
80060046.975VESA
102476856.570VESA
10247686075VESA
128076847.860VESA
136076847.760VESA
Horizontal
frequency (kHz)
Vertical
frequency (Hz)
Standard
VGA-T
• This TV’s PC input does not support Sync on Green or Composite Sync.
• This TV’s PC input does not support interlaced signals.
• For the best picture quality, it is recommended to use the signals (boldfaced) in the above chart with a 60 Hz
vertical frequency from a personal computer. In plug and play, signals with a 60 Hz vertical frequency will be
selected automatically.
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B
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4KLV-32/37M300A
WARNINGS AND CAUTIONS
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CAUTION
These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any
servicing other than that contained in the operating instructions unless you are qualified to do so.
WARNING!!
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.
!
SAFETY-RELATED COMPONENT WARNING!!
Replace all components with Sony parts whose part numbers appear as shown in this manual or in supplements
published by Sony.
B
B
5KLV-32/37M300A
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SAFETY-RELATED COMPONENT WARNING
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It is essential that all critical parts be replaced only with the part number specified in the electrical parts list to prevent electric shock,
fire, or other hazard.
NOTE: Do not modify the original design without obtaining written permission from the manufacturer or you will void the original parts and
labor guarantee.
USE CAUTION WHEN HANDLING THE LCD PANEL
When repairing the LCD panel, be sure you are grounded by using a wrist band.
To avoid damaging the LCD panel:
do not press on the panel or frame edge to avoid the risk of electric shock.
do not scratch or press on the panel with any sharp objects.
do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
do not expose the LCD panel to direct sunlight.
avoid contact with water. It may cause a short circuit within the module.
disconnect the AC power when replacing the backlight (CCFL) or inverter circuit.
(High voltage occurs at the inverter circuit at 650Vrms.)
always clean the LCD panel with a soft cloth material.
use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
LEAKAGE CURRENT HOT CHECK CIRCUIT
AC Volt-meter
Good Earth Ground
To Instruments
exposed
METALLIC PARTS
1.5 Kohm/10W
Such as WATER PIPE,
CONDUIT etc.
B
B
BB
6KLV-32/37M300A
The circuit boards used in these models have been processed using
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Lead Free Solder.
The servicing of these boards requires special precautions to be taken
as outlined below.
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 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
B
7KLV-32/37M300A
B
BB
SAFETY CHECK-OUT
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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 touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps,
and mounting hardware have been replaced. Be absolutely certain that 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 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 other exposed metal parts for C leakage. Check
leakage as described below.
LeakageTest
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 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
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 A).
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 coldwater pipe with an ohmmeter. The reading should be zero ohms.
If a cold-water pipe is not accessible, connect a 60- to 100-watt
trou le- 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 B).
To Exposed Metal
Parts on Set
AC
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0.15
Earth Ground
Figure A. Usingan AC voltmeter to check AC leakage.Figure B. Checking for earth ground.
Voltmeter
(0.75V)
B
B
8KLV-32/37M300A
BB
SECTION 1 : DISASSEMBLY
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STEPPICTUREDESCRIPTION
Service Position
Stand Removal
Gently place the TV set
face down on the table.
KLV-32M300A:
Remove 3 screws to
release the Tabletop
Stand from the unit.
KLV-37M300A:
Remove 4 screws to
release the Tabletop
Stand from the unit.
B
KLV-32/37M300A9
B
BB
STEPPICTUREDESCRIPTION
Rear Cover
Removal
KLV-32M300A:
Remove 16 screws to
release the rear cover.
KLV-37M300A:
Remove 16 screws to
release the rear cover.
Wall Mount
Bracket
Removal
Remove 6 screws to
release the Wall Mount
Bracket.
KLV-32/37M300A10
B
B
BB
STEPPICTUREDESCRIPTION
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Cover Sheet
Removal
Botton ASSY
Removal
Remove 1 screw to
release the Cover
Sheet.
Remove function cable
from function board
connector.
H1 Mount
Removal
Key Cover and
Multi Botton
Removal
H2 Mount
Removal
Multi Button
Function Key Cover
Bend key cover hooks
to release function
board.
Dismantle function key
form function key cover.
Remove 2 screws and
1 connector to release
the H2 Mount.
KLV-32/37M300A11
B
B
BB
STEPPICTUREDESCRIPTION
H3 Mount
Removal
AC Inlet Removal
Remove 1 screw and
1 connector to release
the H3 Mount.
Remove 1 screw and
1 connector to release
the AC Inlet.
G Mount Removal
Remove 6 screws and
3 connectors to release
the G Mount.
KLV-32/37M300A12
B
B
BB
STEPPICTUREDESCRIPTION
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Shield Case
Removal
A Mount Removal
Remove 10 screws to
release the Shield
Case.
Remove 5 screws and
9 connectors to release
the A Mount.
Bezel Removal
KLV-32M300A/
37M300A:
Remove 10 screws to
release the Bezel.
B
KLV-32/37M300A13
B
BB
STEPPICTUREDESCRIPTION
LCD Panel
Removal
KLV-32M300A:
Remove 10 screws to
release the LCD Panel.
KLV-37M300A:
Remove 14 screws to
release the LCD Panel.
KLV-32/37M300A14
B
B
BB
SECTION 2 : SERVICE MODE (factory mode)
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To adjust various set features, use the Remote Commander to put the set into service mode to display the service menu. Input the signal
to monitor, please confirm that there is no OSD before enter the service mode.
1) Press “LEFT”button
2) Press “RIGHT” button
3) Press “MUTE” button
4) Press “ENTER” button
5) Press “MUTE” button
6) Press “MENU” button
To exit "service mode", press the MENU button
Factory Menu
INPUT SOURCEVIDEO1
WHITE BALANCE[Of]
INTERNAL PATTER [Off]
COLOR TEMP.[
Neutral
R GAIN[229]
G GAIN[230]
B GAIN[235]
R OFFSET[124]
G OFFSET[125]
B OFFSET[123]