Panasonic ET-YFB100G Service Manual ▷ View online
ORDER NO. VED1210451CE
D10
Digital Interface Box
ET-YFB100G
Model No.
Rev._3 2013-03
The service technician is required to read and follow the “Safety Precautions” and “Important Safety Notice” in this service manual.
CAUTION
About lead free solder (PbF)
For US
WARNING:
CAUTION :
Any unauthorized changes or modifications to this equipment will void the users authority to operate.
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It dose 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.
It dose 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.
There are special parts used in Panasonic Digital Interface Box which are important for safety. These parts are shaded on the
schematic diagram. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent shock,
fire, or other hazards. Do not modify the original design without permission of PANASONIC BROADCAST & TELEVISION SYSTEMS
COMPANY.
schematic diagram. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent shock,
fire, or other hazards. Do not modify the original design without permission of PANASONIC BROADCAST & TELEVISION SYSTEMS
COMPANY.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This projector is using the P.C.Board which applies lead free solder.
Use lead free solder in servicing from the standpoint of antipollution for the global environment.
Notes:
Use lead free solder in servicing from the standpoint of antipollution for the global environment.
Notes:
・
Lead free solder: Sn-Ag-Cu (tin, silver and copper) has a higher melting point (approx. 217°C) than standard solder. Typically the melting point
・ is 30~40 °C higher. When servicing, use a high temperature soldering iron with temperature limitation function and set it to 370 ± 10 °C.
・ Be precautious about lead free solder. Sn-Ag-Cu (tin, silver and copper) will tend to splash when heated too high (approx. 600°C or higher).
・ Use lead free solder for the P.C.Board (specified on it as “PbF”) which uses lead free solder. (When you unavoidably use lead solder, use lead
・ solder after removing lead free solder. Or be sure to heat the lead free solder until it melts completely, before applying lead solder.)
・ After soldering to double layered P.C.Boards, check the component side for excess solder which may flow onto the opposite side.
・ Be precautious about lead free solder. Sn-Ag-Cu (tin, silver and copper) will tend to splash when heated too high (approx. 600°C or higher).
・ Use lead free solder for the P.C.Board (specified on it as “PbF”) which uses lead free solder. (When you unavoidably use lead solder, use lead
・ solder after removing lead free solder. Or be sure to heat the lead free solder until it melts completely, before applying lead solder.)
・ After soldering to double layered P.C.Boards, check the component side for excess solder which may flow onto the opposite side.
About the identification of the lead free solder P.C.Board.
For the P.C.Board which applies lead free solder, the symbol as shown in the figure below is printed or stamped on the surface
or the back of P.C.Board.
For the P.C.Board which applies lead free solder, the symbol as shown in the figure below is printed or stamped on the surface
or the back of P.C.Board.
IMPORTANT SAFETY NOTICE
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1. Safety Precautions
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2. Specifications
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3. The name of each part
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3. 1. Main body
3. 2. Control panel
3. 3. Connecting terminals
3. 4. Mounting accessories
4. OSD Menu Navigation
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5. Extend mode (EXT OPTION menu)
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5. 1. Procedure to open / close "EXT OPTION" menu
5. 2. EXT OPTION Menu and Functions
6. <SERIAL IN> terminal
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6. 1. Connection
6. 2. Pin assignments and signal names
6. 3. Communication conditions
6. 4. Cable specification
7. Microprocessor update procedure
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7. 1. Equipment to be used
7. 2. Connection Preparations
7. 3. Update procedure
8. Microprocessor update procedure
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8. 1. Equipment to be used
8. 2. Connection Preparations
8. 3. Update procedure
9. Schematic Diagram
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9. 1. Block diagram
9. 2. A-P.C.Board Schematic diagram
9. 3. J-P.C.Board, S-P.C.Board Schematic diagram
9. 4. Circuit boards diagram
10. Exploded Views & Replacement Parts List
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10. 1. Parts Location
10. 2. Packing Parts
10. 3. Replacement Parts List
CONTENTS
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1. Safety Precautions
1.1. General Guidelines
1.2. Leakage Current Check
1. Prepare the measuring circuit as shown in Fig.1.
Be sure to use a voltmeter having the performance described in Table 1.
2. Assemble the circuit as shown in Fig.2. Plug the power cord in a power outlet.
3. Connect M1 to T1 according to Fig.2 and measure the voltage.
4. Change the connection of M1 from T1 to T2 and measure the voltage again.
5. The voltmeter must read 0.375 V or lower in both of steps 3 and 4. This means that the current must be 0.75mA or less.
6. If the reading is out of the above standard, the interface box must be repaired and rechecked before returning to the
customer because of a possibility of an electric shock.
Be sure to use a voltmeter having the performance described in Table 1.
2. Assemble the circuit as shown in Fig.2. Plug the power cord in a power outlet.
3. Connect M1 to T1 according to Fig.2 and measure the voltage.
4. Change the connection of M1 from T1 to T2 and measure the voltage again.
5. The voltmeter must read 0.375 V or lower in both of steps 3 and 4. This means that the current must be 0.75mA or less.
6. If the reading is out of the above standard, the interface box must be repaired and rechecked before returning to the
customer because of a possibility of an electric shock.
- For continued safety, no modification of any circuit must be attempted.
- Unplug the power cord from the power outlet before disassembling this interface box.
- Use correctly the supplied power cord and must ground it.
- It is advisable to use an isolation transformer in the AC power line before the service.
- Be careful not to touch the power supply part of this interface box when you service with the upper case removed and
the power supply turned ON.
- Observe the original lead dress during the service. If a short circuit is found, replace all the parts overheated
or damaged by the short circuit.
- After the service, all the protective devices such as insulation barriers, insulation papers, shields, and isolation
R-C combinations must be properly installed.
- After the service, check the leakage current to prevent the customer from getting an electric shock.
- Unplug the power cord from the power outlet before disassembling this interface box.
- Use correctly the supplied power cord and must ground it.
- It is advisable to use an isolation transformer in the AC power line before the service.
- Be careful not to touch the power supply part of this interface box when you service with the upper case removed and
the power supply turned ON.
- Observe the original lead dress during the service. If a short circuit is found, replace all the parts overheated
or damaged by the short circuit.
- After the service, all the protective devices such as insulation barriers, insulation papers, shields, and isolation
R-C combinations must be properly installed.
- After the service, check the leakage current to prevent the customer from getting an electric shock.
Fig.1
Fig.2
Table. 2
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