Panasonic TC-29P10N Service Manual

Panasonic TC-29P10N Service Manual Manual pdf 5 page image

- 5 -Display method Display positionHold [ ] (OFF TIMER) on theremote control pressed andpress [VOL -] on the TV set.(The reception screen switchesto TV monitor, and a screen asshown on the right appears.)When one of the buttons forchannel selection etc. isoperated, the display returns tothe normal screen.When display is desiredTo return to normal display[VOL -][OFF TIMER]Press simultaneously.Operation panel inthe remote controlH10 UV OKH30 AVSW OKH36 IC301 OKH91 IOA OKH21 OKH34 DG OKH90 OKH57H58H56 H55 H99Magenta Green Yellow Red BlueDisplay at the time of a faultOperation part on the main unitPanas1 2In regard to the self-check functionWhen phenomena like “the power fails from time to time” or “the video/audio fails from time to time” can not be confirmed at thetime of servicing, the self-check function can be used to confirm the occurrence and to limit the scope for the defective circuits.Also, when “the power fails from time to time”, display of the color bar on the screen can be used confirm the occurrence and tolimit the scope for the defective circuits.Display method and display positionDisplay phenomenon and treatment methodDisplaysymbol Phenomenon, condition Treatment methodH10 No output of video and audio. Exchange the tuner (TNR001).H21 Audio stop. Surround function not effective. Inspect the main board [A] IC2401 (audio compen-sation).H30 No video and audio. Surround function not effective. Inspect the rear terminal switching board [H]IC3001.H34 No video. No raster. Color stop. No color synchronization.Wrong colors. Bad on-screen display. No horizontal/verticalsynchronization.Inspect the digital core board [DG] IC6601.H36 No video. Color stop. Wrong colors. Bad on-screen display.No horizontal/vertical synchronization.Inspect the video signal processing board [AG]IC301.H55 The red bar is displayed momentarily and then the power isinterrupted. The power signal lamp (red) flashes threetimes in intervals of 2.8 sec.Detection of overcurrent (140V line), vertical out-put.Detection of 25 V line overcurrent, 25V line.H56 The yellow bar is displayed for 0.5 sec., and then the poweris interrupted. The power signal lamp (red) flashes twice inintervals of 3.3 sec.“Power failure from time to time” because of theovercurrent (140V line), vertical output (+15V line).H57 The green bar is displayed for 1 sec., and then the power isinterrupted. The power signal lamp (red) flashes once inintervals of 3.8 sec.“Power failure from time to time” because of theovercurrent (140V line), vertical output (+15V line).H58 Abnormal power circuit. The power does not come up, andit is switched off after a few seconds.Inspect the main 5V line.H90 The memory gets lost. Exchange the main board [A] IC1114 (memory).H91 One horizontal line is not obtained at the time of servicing. Inspect the main board [A] IC1201 (expansionDAC).H99 “No video from time to time” because of causes in theantenna~tuner~video circuit.*This also may be displayed when the antenna plug is dis-connected or when a channel without a signal is received.Inspect the tuner~video circuit.