Corrupted EEPROM data in the 480i addressing area for
Models Number: TH-37PD25U, TH-37PX25U, TH-42PD25U,
TH-42PX25U, and TH-50PX25U (Service Bulletin SB-B19-04-
12)
The following symptoms are caused by corrupted EEPROM data in the 480i
addressing area
.
1. Image appears split with a portion repeated on the right 1/3
rd
of the screen
on 480i/tuner/composite sources only. Using 1080i HD sources, the
picture is ok.
2. Image is shifted over to the left and the right 1/3
rd
of the screen has a
black bar on 480i sources.
3. Image has a narrow black bar across the top edge of the screen in 480i
only. 1080i HD is ok.
4. Image appears in a narrow band at the top edge of the screen. Bottom
portion is all black. Switching aspect mode to Zoom Mode will display
picture ok. 1080i HD is also ok.
5. Any loss of picture, distortion, or other symptom affecting only 480i
display.
Symptom #4
Symptom #3
Symptom #2
Symptom #1
Figure 49 - Symptoms
In order to correct these problems, follow the
instructions provided on the Service Bulletin # SB-
B19-04-12.
EEPROM data copy jig
.
Order Part # TNPX25JIG.
The factory applied the updated EEPROM data to
production units starting with serial number
YB4550001.
Figure 50 - Test Fixture
110
Summary of Contents for GP6DU
Page 6: ......
Page 8: ...2 ...
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Page 18: ...12 ...
Page 20: ...14 Figure 7 Video Block Diagram ...
Page 21: ...15 Figure 8 H Board Block Diagram ...
Page 22: ...16 ...
Page 23: ...Figure 9 H Board Block Diagram 17 ...
Page 24: ...Figure 10 DG Board Block Diagram 18 ...
Page 37: ...Figure 23 TH 42PD25U Power on operation 31 ...
Page 38: ...32 ...
Page 40: ...34 ...
Page 42: ...36 ...
Page 43: ...DG6 DG3 Figure 24 TH 42PX25U Power on operation 37 ...
Page 45: ...Figure 25 TH 42PX25U P Power on operation 39 ...
Page 49: ...4 1 Figure 26 TH 65XVS30 Power On operation 43 ...
Page 54: ...48 ...
Page 55: ...49 Figure 28 TH 42PD25U PA board SOS detect ...
Page 56: ...50 ...
Page 59: ...Figure 31 SS board SOS Detect 53 ...
Page 62: ...56 ...
Page 70: ...64 ...
Page 72: ...66 ...
Page 74: ...68 ...
Page 87: ...IC9709 Figure 36 TH 42PX25U 3 3V_SOS_5V_SOS detect 81 ...
Page 89: ...Figure 38 SS SOS Detect 83 ...
Page 90: ...84 ...
Page 94: ...Figure 40 3 3V SOS and 5V SOS Detect Circuit TH 42XVS30 88 ...
Page 95: ......
Page 97: ...Figure 42 SC SOS Detect Circuit TH 42XVS30 91 ...
Page 100: ...94 ...
Page 101: ...Figure 44 Power SOS and Fan SOS Detect Circuit TH 42XVS30 95 ...
Page 102: ...96 ...
Page 103: ...TH 42XVS30 4X 3X 2X 7X 9X 5X 12X Figure 45 97 ...
Page 104: ...98 ...
Page 112: ...106 ...
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