TNPH0716XXX, TNPH0721XXX & TNPH0731XXX series
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 non-functional).
Cause: All new A boards supplied from factory needs to be initialized.
Perform HARD RESETof Plasma TV unit by pressing & holding VOL DOWN (-)on unit and MENU button on remote at the same time for about 3 seconds.
After hard reset, please confirm if Plasma TV powers ON in user mode and check overall functionality.TH-42PX600 - TH-50PX600
Vibration noise from left or right speaker.
Speaker box is making direct contact with cabinet parts.
Installing mounting screw in the center of speaker box prevents from touching the cabinet parts and minimizes the risk of vibration noise.
Install screw, part number THEL049 to both speaker boxes as in attached picture.
TH42PX60
AC cord plugged in, relay clicks then TV shuts down with power LED 10 blinks.
No Vin supply to IC520 (power control IC) due to open R712 & shorted C527
TH-37PW5 series, TH-37PWD5 series, TH-42PW5 series, TH-42PWD5 series
TH-42PHD5 series, TH-42PHW5 series, TH-50PHD5 series, TH-50PHW5 series
Panel may show the color faulty in the part of TV screen.
Faulty IC(Video Amp ) in lot defect (Problem in IC production process)
Ref No.: IC9002(G-Ch), IC9003(B-Ch), IC9004(R-Ch) Part No.:C0ABHA000033
Replace IC9002, IC9003, IC9004 by new one. (Those ICs are located on D Board)
Affected Production Serial.:
Production from 2003/March(Y*321***) to 2003/June(Y*334***)
TH42PX600 - TH42PX60
Shuts down with power LED 10 blinks.
Missing 395Vdc output due to shorted Q412 & Q413 and open PR401.
Replace Q412, Q413, PR401 & check/replace Q408 and Q409.
Note: Always confirm condition of Q408 & Q409, in some cases could be shorted.
TH42PX60
Picture disappears after few minutes but sound is OK.
Low Ldo_5V supply to IC9800 (DC to DC Converter) due to leaky D9801.
Replace D9801 on the D board.
TH42PX600
Unit shuts down with power LED 10 blinks.
Shorted Q409 & open PR401
Replace Q409 & PR401 [P-Board]
