Panasonic SA-PT250EE Service Manual ▷ View online
8.5. Service Precautions
8.5.1. Recovery after the DVD player is repaired
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When the FLASH ROM IC or DVD Module P.C.B. is replaced, carry out the recovery processing to optimize the drive.
Playback the recovery disk to process the recovery automatically.
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Recovery disc (Product number: RFKZD03R005) [SPG]
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Performing recovery process
1. Load the recovery disc RFKZD03R005 on to the player and run it.
2. Recovery is performed automatically. When it is finished, a message appears on the screen.
3. Remove the recovery disc.
4. Turn off the power.
5. Initialize the player.
8.5.2. Firmware version-up of the DVD player
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The firmware of the DVD player may be renewed to improve the quality including operability and playability to the substandard
discs.processing to optimize the drive.
discs.processing to optimize the drive.
The recovery disc has also firmware version-up.
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After version-up, recovery processing is executed automatically.
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Part number of the recovery disc for version-up will be noticed when it is supplied.
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Updating firmware
1. Load the recovery disc on to the player and run it.
2. Firmware version of the player is automatically checked. Appropriate message appears whenever necessary.
3. Using remote controller´s cursor key, select whether version updating is to be done or not. (Selection of Yes/No)
4. a. If Yes is selected, version updating is performed.
b. If No is selected, only recovery is performed.
5. a. When updating is finished, remove the disc according to the message appearing on the screen.
b. Remove the disc according to the message appearing on the screen.
6. Turn off the power.
Note:
If the AC power supply is shut out during version-up due to a power failure, the version-up is improperly carried out.
In such a case, replace the FLASH ROM IC and carry out the version-up again.
8.5.3. DVD Module P.C.B. Reset
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When after replacing FLASH ROM IC or DVD Module P.C.B., FL displays error code “ DVD F897”. This means the unit is not
initialized properly and the following process needs to be carry out.
initialized properly and the following process needs to be carry out.
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Procedures:
1. Press
on remote control while pressing “STOP” button on main unit. (To enter into initialization)
2. FL display show “INIT”
3. While still pressing “STOP” button on main unit, press “ENTER” on remote control. (To reset the unit)
4. FL will display “RESET” before FL display will change to TOC reading again.
5. Power off unit. Unplug the AC cord.
6. Power on the unit. It should be no problem. If problem persist check on the DVD Module P.C.B. or FLASH ROM IC.
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SA-PT250EE
Be careful when disassembling and servicing.
Some chassis components may have sharp edges.
Special Note:
9 Assembling and Disassembling
“ATTENTION SERVICER”
1. This section describes the disassembly procedures for all the major printed circuit boards and main components.
2. Before the disassembly process was carried out, do take special note that all safety precautions are to be carried out.
(Ensure that no AC power supply is connected during disassembling.)
3. For assembly after operation checks or replacement, reverse the respective procedures.
Special reassembly procedures are described only when required.
4. The Switch Regulator IC may have high temperature after prolonged use.
5. Use caution when removing the top cabinet and avoid touching heat sinks located in the unit.
6. Select items from the following index when checks or replacement are required.
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Disassembly of Top Cabinet
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Disassembly of DVD Lid (When taking out disc manually)
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Disassembly of Front Panel
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Disassembly of Volume P.C.B.
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Disassembly of Mic P.C.B.
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Disassembly of Panel P.C.B.
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Disassembly of USB P.C.B.
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Disassembly of Scart P.C.B.
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Disassembly of Rear Panel
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Disassembly of DVD Mechanism Unit
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Disassembly of DVD Module P.C.B.
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Disassembly of Main P.C.B.
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Replacement of Regulator IC (IC2903)
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Disassembly of D-Amp P.C.B.
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Replacement of Digital Amp IC (IC5000)
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Disassembly of SMPS & AC-Inlet P.C.B.
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Replacement of Switch Regulator IC/Diode (IC5701/D5702)
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Replacement of Regulator Diode (D5801/D5802)
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Replacement of Regulator Diode (D5803)
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SA-PT250EE
9.1. Disassembly Flow Chart
9.4. DVD Lid
9.10. Scart P.C.B.
9.3. Top Cabinet
9.11. Rear Panel
9.9. USB P .C.B.
9.8. Panel P.C.B.
9.6. Volume P.C.B.
9.5. Front Panel
9.18. SMPS & AC-Inlet
P.C.B.
9.19. Switch Regulator IC/
Diode (IC5701/D5702)
9.21. Regulator Diode
(D5803)
9.20. Regulator Diode
(D5801/D5802)
9.17. Digital Amp IC
(IC5000)
9.15. Regulator IC
(IC2903)
9.14. Main P .C.B.
9.12. DVD Mechanism
Unit
9.13. DVD Module
P.C.B.
9.16. D-Amp P.C.B.
9.7. Mic P.C.B.
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SA-PT250EE
9.2. Main Components and P.C.B. Locations
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SA-PT250EE
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