Service Manuals, User Guides, Schematic Diagrams or docs for : Sanyo Monitor Sanyo_FVM4612_P46142-03_Z7DA_[SM]
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
![Sanyo_FVM4612_P46142-03_Z7DA_[SM]](/pics/5c22e3057caf9.gif)
>> Download Sanyo_FVM4612_P46142-03_Z7DA_[SM] documenatation <<
Text preview - extract from the document
Service Manual
LCD TV
Model No. Service Reference No.
FVM4612 P46142-03
DP46132 P46142-04
DP46132M P46142M-04
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not
contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by
electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or
products dealt with in this service information by anyone else could result in serious injury or death.
IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These are marked by in the Schematic Diagrams,
Circuit Board Diagrams. Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with
manufacture's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of manufacturer.
Sanyo Manufacturing Corp. 3333
Sanyo Road, Forrest City, AR 72335
Printed in China, Dec, 2012
1
TABLE OF CONTENTS Page
1 Safety Precaution ------------------------------------------------------------------------------------------------ 3
1.1. General Guidelines ---------------------------------------------------------------------------------------- 3
2 Warning ------------------------------------------------------------------------------------------------------------- 4
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive(ES) Devices 4
2.2. About lead free solder (PbF) ---------------------------------------------------------------------------- 5
3 Service Navigation ----------------------------------------------------------------------------------------------- 6
3.1. Service Hint-------------------------------------------------------------------------------------------------- 6
3.2. Applicable signals ------------------------------------------------------------------------------------------ 7
4 Specifications ----------------------------------------------------------------------------------------------------- 8
5 Troubleshooting Guide ----------------------------------------------------------------------------------------- 9
5.1 No Power ----------------------------------------------------------------------------------------------------- 9
5.2 Abnormal Display ------------------------------------------------------------------------------------------ 10
5.3 No Display --------------------------------------------------------------------------------------------------- 11
5.4 Sound Problem --------------------------------------------------------------------------------------------- 12
5.5 Remote Control Malfunction ---------------------------------------------------------------------------- 13
6 Disassembly and Assembly Instructions --------------------------------------------------------------- 14
7 Block Diagram---------------------------------------------------------------------------------------------------- 18
8 Schematic Diagram --------------------------------------------------------------------------------------------- 19
8.1 Main Board -------------------------------------------------------------------------------------------------- 19
8.2 Power Board ------------------------------------------------------------------------------------------------ 29
8.3 Key Board---------------------------------------------------------------------------------------------------- 32
8.4 IR Board ------------------------------------------------------------------------------------------------------ 33
9 Wiring Connection Diagram --------------------------------------------------------------------------------- 34
9.1. Caution Statement -------------------------------------------------------------------------------------- 34
9.2. Wiring -------------------------------------------------------------------------------------------------------- 34
10 Exploded View and Replacement Parts List ---------------------------------------------------------- 35
10.1. Exploded View ------------------------------------------------------------------------------------------ 35
10.2. Replacement Parts List -------------------------------------------------------------------------------- 36
2
1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been
overheated or damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are
properly installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to
shock hazards.
4. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.
5. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or
some of the wires have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the
entire wiring unit instead.
6. When conducting repairs and servicing, do not twist the Faston connectors but plug them straight in or unplug
them straight out.
1.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between 1.1.2. Leakage Current Hot Check (See Figure 1.)
the two prongs on the plug. 1. Plug the AC cord directly into the AC outlet. Do
2. Measure the resistance value, with an ohmmeter, not use an isolation transformer for this check.
between the jumpered AC plug and each exposed 2. Connect a 1.5kohm, 10 watts resistor, in parallel
metallic cabinet part on the equipment such as with 0.15F capacitors, between each exposed
screw heads, connectors, control shafts, etc. metallic part on the set and a good earth ground
When the exposed metallic part has a return path such as a water pipe, as shown in Figure 1.
to the chassis, the reading should be 100 Mohm 3. Use an AC voltmeter, with 1000 ohms/volt or
and over. When the exposed metal does not have more sensitivity, to measure the potential
a return path to the chassis, the reading must be across the resistor.
. 4. Check each exposed metallic part, and
measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and
repeat each of the above measurements.
6. The potential at any point should not exceed
0.75 volts RMS. A leakage current tester
(Simpson Model 229 or equivalent) may be
used to make the hot checks, leakage current
must not exceed 1/2 milliamp. In case a
measurement is outside of the limits specified,
there is a possibility of a shock hazard, and the
equipment should be repaired and rechecked
before it is returned to the customer.
Figure 1
3
2 Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly
are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some
field-effect transistors and semiconductor [chip] components. The following techniques should be used to help
reduce the incidence of component damage caused by electrostatic discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off
any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially
available discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying
power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface
such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as [anti-static (ESD
protected)] can generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to
install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive
foam, aluminum foil or comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the
protective material to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise ham less motion
such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate
static electricity (ESD) sufficient to damage an ES device).
4
2.2. About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it's manufacture due to environmental conservation issues. For service and repair
work, we'd suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol PbF stamped on the back of PCB.
Caution
◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo