KLV-32D300A, KLV-32V300A, KLV-40D300A, KLV-40V300A, KLV-46V300A — Sony TV Service Manual (repair manual)

Model
KLV-32D300A KLV-32V300A KLV-40D300A KLV-40V300A KLV-46V300A
Pages
40
Size
3.59 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
klv-32d300a-klv-32v300a-klv-40d300a-klv-40v300a-kl.pdf
Date

View Sony KLV-32D300A / KLV-32V300A / KLV-40D300A / KLV-40V300A / KLV-46V300A Service Manual online

LCD Color TV
WAX3 
CHASSIS
KLV-32D300A/40D300A
KLV-32V300A/40V300A/46V300A
Taiwan Model
SERVICE MANUAL
KLV-32/40D300A, 32/40/46V300A (WB)     2
SPECIFICATIONS
Television system:
NTSC
American TV Standard
Channel coverage:
VHF
2-13
UHF
14-69
CATV
1-125
Antenna:
75-ohm external terminal for VHF/UHF
Screen size (measured diagonally):
KLV-32D300A/KLV-32V300A:32 inches
KLV-40D300A/KLV-40V300A:40 inches
KLV-46V300A: 46 inches
Panel System:
LCD (Liquid Crystal Display) Panel
Display resolution (horizontal 
××××× vertical):
1,366 dots 
× 768 lines
VIDEO IN 1/2/3:
S VIDEO (4-pin mini DIN):
(For KLV-32D300A/KLV-40D300A: VIDEO 1 only.)
(For KLV-32V300A/KLV-40V300A/KLV-46V300A: VIDEO
1/2 only.)
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
VIDEO:
1 Vp-p, 75 ohms unbalanced, sync negative
AUDIO:
500 mVrms (100% modulation)
Impedance: 47 kilohms
COMPONENT IN 1/2:
Y P
B
/C
B
 P
R
/C
R
 (Component Video):
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative
P
B
/C
B
: 0.7 Vp-p, 75 ohms
P
R
/C
R
: 0.7 Vp-p, 75 ohms
Signal format: 480i, 480p, 720p, 1080i, 1080p
AUDIO:
500 mVrms (100% modulation)
Impedance: 47 kilohms
HDMI IN 1/2/3:
(Input 3 is for KLV-32D300A, KLV-40D300A only.)
HDMI:
Video: 480i, 480p, 720p, 1080i, 1080p, 1080/24p
Audio: Two channel linear PCM 32, 44.1 and 48 kHz,
16, 20 and 24 bits
AUDIO:
500 mVrms (100% modulation)
Impedance: 47 kilohms
AUDIO OUT:
500 mVrms (100% modulation)
More than 1 Vrms at the maximum volume setting (Variable)
More than 500 mVrms (Fixed)
PC IN:
D-sub 15-pin, analog RGB, 0.7 Vp-p, 75 ohms, positive
See the PC Input Signal Reference Chart on page 48.
PC AUDIO INPUT:
Stereo mini jack, 0.5 Vrms, 1 kilohm
Headphones:
Stereo mini jack
Impedance: 16 ohms
Speaker:
Full range:
KLV-32D300A/ KLV-32V300A: 42 
× 150 mm (2)
KLV-40D300A/KLV-40V300A: 55 
× 155 mm (2)
KLV-46V300A: 70 
× 130 mm (2)
Speaker output:
10 W + 10 W
Power requirement:
110 V AC, 60 Hz
Power consumption:
In use:
KLV-32D300A: 160 W
KLV-40D300A: 180 W
KLV-32V300A: 150 W
KLV-40V300A: 170 W
KLV-46V300A: 210 W
In standby: Less than 0.1 W
Dimensions (W/H/D):
KLV-32D300A/ KLV-32V300A: (with stand)
790 
× 581 × 214 mm
(without stand) 790 
× 530 × 100 mm
KLV-40D300A/KLV-40V300A: (with stand)
981 
× 696 × 265 mm
(without stand) 981 
× 643 × 110 mm
KLV-46V300A:
(with stand)
1114 
× 782 × 306 mm
(without stand) 1114 
× 730 × 115 mm
Mass:
KLV-32D300A: (with stand)
17 kg
(without stand) 15 kg
KLV-40D300A: (with stand)
25 kg
(without stand) 21 kg
KLV-32V300A: (with stand)
16 kg
(without stand) 14 kg
KLV-40V300A: (with stand)
24 kg
(without stand) 20 kg
KLV-46V300A: (with stand)
31 kg
(without stand) 26 kg
Supplied accessories:
Remote control RM-CA008 (1)
Size AA batteries (2)
AC power cord (1)
HD15-HD15 cable (1)
Support belt (1), securing screw (1) and wood screw (1)
Cable holder (1)
Operating Instructions (1)
Leaflet (Installing the Wall-Mount Bracket) (1)
Warranty Card (1)
Optional accessories:
Wall-Mount Bracket: SU-WL500
TV Stand: SU-FL62
Design and specifications are subject to change
without notice.
 Optional accessories’ availability depends on
its stock.
KLV-32/40D300A, 32/40/46V300A (WB)     3
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.
WARNINGS AND CAUTIONS
SAFETY-RELATED COMPONENT
WARNING
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.
When repairing the LCD panel on the wall, the LCD panel must
be secured using the 4 mounting holes on the rear cover.
1) Do not press on the panel or frame edge to avoid the risk of
electric shock.
2) Do not scratch or press on the panel with any sharp objects.
3) Do not leave the module in high temperatures 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 a short circuit within
the module.
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.
9) Protect the panel from ESD to avoid damaging the electronic
circuit (C-MOS).
KLV-32/40D300A, 32/40/46V300A (WB)     4
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 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 AC
leakage. Check leakage as described below.
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 0.5 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 0.75 V, 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
cold-water pipe with an ohmmeter. 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 B).
To  Exposed Metal
Parts on Set
0.15 
µF
Earth Ground
AC
Voltmeter
o
o
(0.75V)
Trouble Light
AC Outlet Box
Ohmmeter
Cold-water Pipe
FigureA. Using an AC voltmeter to check AC leakage.  
Figure B. Checking for earth ground.
Page of 40
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  • Parts list (bill of materials).