Panasonic SA-BFT800EE / SA-BFT800EEK Service Manual ▷ View online
9
2.4.
Handling Precautions for BD Traverse
The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit.
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit.
2.4.1.
Cautions to Be Taken in Handling the Optical Pickup Unit
The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothes or human body.
Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.
Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.
1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.
2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed
2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed
should be short-circuited with a short pin or a clip.
3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable.
4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexi-
4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexi-
ble cable, cut off the antistatic FPC.
Figure 1
10
2.4.2.
Grounding for electrostatic breakdown prevention
Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static electric-
ity in the working environment. Proceed servicing works under the working environment where grounding works is completed.
ity in the working environment. Proceed servicing works under the working environment where grounding works is completed.
2.4.2.1.
Worktable grounding
1. Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.
1. Human body grounding
1. Use the anti-static wrist strap to discharge the static electricity form your body.
Figure 2
11
3 Service Navigation
3.1.
Service Information
This service manual contains technical information which will allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, this information will be followed by supplement service manual to be filed with the original ser-
vice manual.
vice manual.
1) This service manual does not contain the following information, because of the impossibility of servicing at component level.
• Schematic Diagram, Block Diagram & P.C.B. layout of Digital P.C.B. & Front End P.C.B..
• Replacement parts list for individual parts of Digital P.C.B. & Front End P.C.B..
• Exploded View and Parts List for individual parts of BD Traverse.
• Replacement parts list for individual parts of Digital P.C.B. & Front End P.C.B..
• Exploded View and Parts List for individual parts of BD Traverse.
2) The following category are recycle module part. Please send them to Central Repair Center.
• BD Kit Assembly (BD Traverse/Digital P.C.B./Front End P.C.B.): RFKNBFT800EE
• BD Kit Assembly (BD Traverse/Digital P.C.B./Front End P.C.B.): RFKNBFT800EE
• Micro-processor:
1) The following components are assembled part.
• Micro-processor IC, IC2300 (RFKMBFT800D0)
1) The following components are assembled part.
• Micro-processor IC, IC2300 (RFKMBFT800D0)
Note: It is necessary to match main & sub firmware.
3.2.
Firmware updates
12
3.3.
Caution for Replacing Parts
3.3.1.
Items that should be done after replacing parts
Note 1:
Download latest Firmware and burn it on CD-R or CD-RW, and update Firmware.
3.3.2.
Standard Inspection Specifications after Making Repairs
After making repairs, we recommend performing the following inspection, to check normal operation.
Use the following checklist to establish the judgment criteria for the picture and sound.
No.
Procedure
Item to Check
1
Turn on the power, and confirm items pointed out.
Items pointed out should reappear.
2
Insert RAM disc.
The Panasonic RAM disc should be recognized.
4
Perform playback for one minute using the RAM disc.
No abnormality should be seen in the picture, sound or operation.
*Panasonic DVD-RAM disc should be used when recording and play-
back.
*Panasonic DVD-RAM disc should be used when recording and play-
back.
5
Perform playback for one minute using the BD-Video disc.
No abnormality should be seen in the picture, sound or operation.
6
If a problem is caused by a BD-Video disc, VCD, DVD-R, DVD-
Video, Audio-CD, or MP3, playback the test disc.
Video, Audio-CD, or MP3, playback the test disc.
No abnormality should be seen in the picture, sound or operation.
7
After checking and making repairs, upgrade the firmware to the
latest version.
latest version.
Make sure that [UPD OK] appears in the FL displays.
*[UNSUPPORT] display means the unit is already updated to newest
same version. Then version up is not necessary.
*[UNSUPPORT] display means the unit is already updated to newest
same version. Then version up is not necessary.
8
Transfer [9][9] in the service mode setting, and initialize the ser-
vice settings (return various settings and error information to
their default values. The laser time is not included in this initial-
ization).
vice settings (return various settings and error information to
their default values. The laser time is not included in this initial-
ization).
Make sure that [CLR] appears in the FL display.
After checking it, turn the power off.
After checking it, turn the power off.
Item Contents Check
Item Contents Check
Picture
Block noise
Sound
Distorted sound
Crosscut noise
Noise (static, background noise, etc.)
Dot noise
The sound level is too low.
Picture disruption
The sound level is too high.
Not bright enough
The sound level changes.
Too bright
Flickering color
Color fading
Flickering color
Color fading
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