Remote Commander RM-YD026
Two Size AA (R6) Batteries
Instruction Manual
Quick Setup Guide
Warranty Card
Safety Instructions
Cable Holder (1 attached to TV)
Optional Accessories
Connecting Cables
Headphones Plug Adapter
Wall-Mount Bracket
SU-WL500
TV Stand
SU-FL71M
KDL-32L4000/37L4000
5
KDL-32L4000/37L4000
WARNINGS AND CAUTIONS
CAUTION
These servicing instructions are for use by qualifi ed 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 qualifi ed 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!!
Components identifi ed 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 this
manual or in supplements published by Sony. Circuit adjustments that are critical for safe operation are identifi ed in
this manual. Follow these procedures whenever critical components are replaced or improper operation is suspected.
CARRYING THE TV
To avoid dropping the TV and causing serious injury, be sure to follow
these guidelines:
Before carrying the TV, disconnect all cables.
Carrying the large size TV requires two or more people.
When carrying, do not subject the TV to shocks or vibration, or
excessive force.
When you carry the TV, place your hand as illustrated and hold it
securely. Do not put stress on the LCD panel.
When lifting or moving the TV, hold it firmly from the bottom. Place
your palm directly under the panel.
Place your palm directly underneath, but do not squeeze the
panel’s speaker grill area.
KDL-32L4000/37L4000
6
SAFETY-RELATED COMPONENT WARNING
KDL-32L4000/37L4000
There are critical components used in LCD color TVs that are important for safety. These components are identifi ed with shading and
mark on the schematic diagrams and the electrical parts list. It is essential that these critical parts be replaced only with the part number
specifi ed in the electrical parts list to prevent electric shock, fi re, 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 installing the LCD panel on a wall, the LCD panel must be secured using the 4 mounting holes on the rear cover.
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 adapter 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
KDL-32L4000/37L4000
7
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.
KDL-32L4000/37L4000
example 1
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 :
rebmuntraPretemaiDskrameR
91-500-046-7mm3.0gK52.0
02-500-046-7mm4.0gK05.0
12-500-046-7mm5.0gK05.0
22-500-046-7mm6.0gK52.0
32-500-046-7mm8.0gK00.1
42-500-046-7mm0.1gK00.1
52-500-046-7mm2.1gK00.1
62-500-046-7mm6.1gK00.1
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
KDL-32L4000/37L4000
8
SAFETY CHECK-OUT
KDL-32L4000/37L4000
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.
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).
Leakage Test
0.15 F
Figure A. Using an AC voltmeter to check AC leakage.Figure B. Checking for earth ground.
To Exposed Metal
Parts on Set
Earth Ground
AC
Voltmeter
(0.75V)
Trouble Light
AC Outlet Box
Ohmmeter
Cold-water Pipe
KDL-32L4000/37L4000
9
KDL-32L4000/37L4000
SELF-DIAGNOSTIC FUNCTION
IThe units in this manual contain a self-diagnostic function. If an error occurs, the TIMER/PIC OFF LED indicator will automatically begin to fl ash. The
number of times the LED fl ashes translates to a probable source of the problem. A defi nition of the TIMER/PIC OFF LED fl ash indicators is listed in the
instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the Remote Commander can be used to review
the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
1. Diagnostic Test Indicators
When an error occurs, the TIMER/PIC OFF LED indicator will fl ash a set number of times to indicate the possible cause of the problem. If there is more
than one error, the indicator will identify the fi rst of the problem areas.
Control Buttons
Self Diagnosis
Supported model
Description of LED Indictors
LEDLED TypeDescription
POWER LEDGreen LED
STANDBY LEDRed LED
TIMER/PIC OFF
LED
Display of TIMER/PIC OFF LED Flash Count
Amber/Green/Red LED
2 times
5 times
LED ON 0.3 sec.
LED OFF 0.3 sec.
* Light is green when the TV set is on
* Light is red when the TV set is in PC standby mode.
* Light is amber when the timer is set.
* Light is green when the Backlight feature is activated.
* Blinks red when indicating the TV may need servicing
LED OFF
3 sec.
KDL-32L4000/37L4000
10
KDL-32L4000/37L4000
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Viewing the Diagnostic List
1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander within a second of each other:
DISPLAY
The Self Check list displays. This is the SAME as accessing Service Adjustments.
Results for all of the following diagnostic items are displayed at the bottom of the screen. No error has occurred if the screen displays a “0”.