TH42PX600 - TH42PX60
Symptom > Shuts down with power LED 10 blinks.
Cause > Missing 395Vdc output due
to shorted Q412 & Q413 and open PR401.
Remedy > Replace Q412, Q413, PR401 & check/replace Q408 and Q409. Note: Always confirm condition of Q408 & Q409, in some cases could be shorted.
Remedy > Replace Q412, Q413, PR401 & check/replace Q408 and Q409. Note: Always confirm condition of Q408 & Q409, in some cases could be shorted.
Symptom > Picture disappears after few minutes
but sound is OK.
Cause > Low Ldo_5V supply to
IC9800 (DC to DC Converter) due to leaky D9801.
Remedy > Replace D9801 on the D board.
Remedy > Replace D9801 on the D board.
Symptom: AC cord plugged in, relay clicks then
TV shuts down with power LED 10 blinks
Cause: No Vin supply to IC520 (power control IC) due to open R712 & shorted C527
Cause: No Vin supply to IC520 (power control IC) due to open R712 & shorted C527
Remedy > Replace R712 & C527
Symptom > Vibration noise from left or right
speaker.
Cause > Speaker box is making direct contact with cabinet parts.
Remedy . Installing mounting screw in the center of speaker box prevents from touching the cabinet parts and minimizes the risk of vibration noise.
Procedure >> Install screw, part number THEL049 to both speaker boxes as in attached picture.
Cause > Speaker box is making direct contact with cabinet parts.
Remedy . Installing mounting screw in the center of speaker box prevents from touching the cabinet parts and minimizes the risk of vibration noise.
Procedure >> Install screw, part number THEL049 to both speaker boxes as in attached picture.
Symptom > Unit shuts down with power LED 10
blinks
Cause > Shorted Q409 & open PR401
Remedy > Replace Q409 & PR401
Cause > Shorted Q409 & open PR401
Remedy > Replace Q409 & PR401
PANASONIC TH65PZ850U, TH58PZ850U, TH50PZ850U, TH46PZ850U, TH58PZ800U,
TH50PZ800U, TH46PZ800U, TH42PZ800U, TH50PZ80U, TH46PZ80U, TH42PZ80U, TH50PX80U,
TH42PX80U, TH50PZ85U, TH46PZ85U, TH42PZ85U
Symptom > Once AC power cord is plugged in, unit will turn on by itself. Depends on
factory settings, unit will either display Video, Component or Tuner icon.
After few seconds, screen will change to service mode automatically. NOTE: Since unit is in service mode, only buttons 1, 2, 3 or 4 on remote
are working (rest of buttons are nonfunctional).
Cause > 'A'-Board Part Number: TNPH0716XXX, TNPH0721XXX & TNPH0731XXX series.
All new 'A' boards supplied from factory needs to be initialized.
Remedy
1 Perform HARD RESET of Plasma TV unit by pressing & holding VOL DOWN (-) on unit and MENU button on remote at the same time for about 3 seconds.
2 After hard reset, please confirm if Plasma TV powers ON in user mode and check overall functionality.
All new 'A' boards supplied from factory needs to be initialized.
Remedy
1 Perform HARD RESET of Plasma TV unit by pressing & holding VOL DOWN (-) on unit and MENU button on remote at the same time for about 3 seconds.
2 After hard reset, please confirm if Plasma TV powers ON in user mode and check overall functionality.
