2-17
DIGITAL DISPLAY & MEDIA TRAINING MASTER
5. MISCELLANEOUS
5-1. No Power
The unit will not turn on.
Is the unit plugged in?
NO
YES
Make sure the unit is plugged into a surge protector or the wall.
Does the unit turn on when the
power button is pressed on the
unit?
NO
YES
See if the unit will turn on when the power button the unit is pressed.
If the unit turns on, then troubleshoot the remote control using the
Remote
Control Not Working
call flow.
Is the unit plugged into a surge
protector?
NO
YES
Make sure the surge protector is plugged into a wall outlet.
Also make sure the surge protector is turned on or does not need to be
reset due to a recent surge.
Does the unit work when plugged
into another outlet?
NO
YES
Test the unit in another outlet. If the unit works, then the problem is the
outlet where the unit was connected. If the issue is the BD, then set up
service for BD according to BD service guide.
Have there been any lightning
strikes or power outages?
NO
If BD failed due to lightning strike or a power surge, this is not covered by
warranty. Follow guidelines for service for a BD out of warranty.
Summary of Contents for BH4120SN
Page 56: ...2 47 WAVEFORMS IC501 MT8560 X TAL 27 MHz 1 1 7 8 10 9 1 SYSTEM PART 1 ...
Page 59: ...2 50 WAVEFORMS H_SDA H_SCL 11 12 5 HDMI PART 12 11 ...
Page 60: ...2 51 WAVEFORMS HDMI_CLK_N 13 13 12 11 14 HDMI_0_N 14 JK803 ...
Page 61: ...2 52 ...
Page 79: ...2 87 2 88 2 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...
Page 80: ...3 AMP P C BOARD TOP VIEW BOTTOM VIEW 2 89 2 90 ...
Page 81: ...4 JACK P C BOARD 5 FRONT P C BOARD TOP VIEW BOTTOM VIEW 2 91 2 92 TOP VIEW BOTTOM VIEW ...
Page 83: ...3 2 ...
Page 87: ...A800 Front SPK A700 Center SPK A600 Rear SPK 4 SPEAKER SECTION 4 1 FRONT CENTER REAR SPEAKER ...
Page 88: ...A900 4 2 PASSIVE SUBWOOFER ...
Page 89: ......
Page 103: ...4 14 MEMO ...