18
7 Troubleshooting Guide
Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timing
7.1.
Check of the IIC bus lines
7.1.1.
How to access
7.1.1.1.
Self-check indication only:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control
for more than 3 seconds.
7.1.1.2.
Self-check indication and forced to factory shipment setting:
Caution:
New key will be generated and previous TV programmes recorded in USB HDD will not be viewed. (See Chap.5)
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote con-
trol for more than 3 seconds.
7.1.2.
Screen display
7.1.3.
Check Point
Confirm the following parts if NG was displayed.
7.1.4.
Exit
Disconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.
Summary of Contents for TX-PR42S20
Page 21: ...21 7 4 No Picture ...
Page 38: ...38 ...
Page 40: ...40 12 3 Wiring 2 ...
Page 41: ...41 13 Schematic Diagram 13 1 Schematic Diagram Note ...
Page 77: ...77 A B C D E F G H I 1 2 3 4 5 6 P BOARD COMPONENT SIDE LSEP1287BEHB ...
Page 88: ...88 15 1 2 Exploded View 2 ...
Page 89: ...89 15 1 3 Packing 1 ...
Page 90: ...90 15 1 4 Packing 2 ...
Page 91: ...91 15 1 5 Mechanical Replacement Parts List ...
Page 95: ...95 15 2 Electrical Replacement Parts List 15 2 1 Replacement Parts List Notes ...
