Friday, September 14, 2012

PANASONIC TC26LX20 TC32LX20 TC22LR20 - Shutdown problems

                                               [2]

SERVICING DVD
Service Tools Needed
  1. DVD test Disc [DVDT-S01 & DVDT-S15] (Supplied from SPC)
  2. Extension cable[REKZ0214](Supplied from SPC)
  3. Shakanabi Software:  Not supplied as service parts.  This software is used for the repair of Circuit Board M8.
  4. Data change CD-R: Not supplied as service parts.  This CD-R is used for the repair of circit board M8.
M8 CIRCUIT BOARD REPAIR
  1. Change what is referred to as the model setting data for the software that resides in IC6702.  This converts  TC-22LR30 [DVD portion] to that of a DMR-E65 for ease of troubleshooting.  This is accomplished through the use of the Shakanabi Software.
  2. Repair Circuit board M8 as would need repair the Digital C.B.A. that resides in the DMR-E5 DVD recorder.  Upon completion of repairs, change the model setting data back to that of the TC-22LR30.  Use the Data Change CD-R to accomplish this task.
Use the extents ion cable between M8 board and the RD board.  Extension cable has A/V output signal switches.  Output signals can be switched from the M-8 board side or RD board side.  When checking the M8 broad, turn the switches to the M8 board side.  When checking RD board, turn the switches to the RD board side.
TROUBLESHOOTING
  • These are some of the screen display symptoms and conditions that may arise as a result of an error or problem that may occur either during operation or while entering self-check mode.
Screen display
Symptom/Condition
Remedy

Memory
No picture/no audio
Replace the DG board
Sound
No picture/no audio from tuner
Check audio circuitry on the A-Board
MTS
No audio from tuner.  Switching of Stereo/Sap/Mono for audio from speaker not work
Check the TA tuner and the 30V
MTS-R
Audio from tuner cannot be recorded.  Switching of Stereo/SSAP, Mono for recording does not work.
Check MTS IC3299 and Audio Circuitry on A board.
AVSW-V
No picture
Check video switch on A Bd
AVSW-A
No audio
Check audio switch on A bd
GC3FM
No picture from tuner and video in signal
Replace the DG board
GC3FS
No picture from component input signal.
Replace DG board.
GC3l
No picture
Replace DG board
HDMI
No digital picture/no digital audio from HDMI input signal.
Check DV board
DVD
Recording/playing does not work.  Clock does not work.  DVD Menu cannot be displayed
Check RD board
TRN1
No picture / No audio from tuner
Check the TA tuner baord
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