Sony KDS-R50XBR1 Training Manual page 3

Troubleshooting Flowchart Step Descriptions ................... 63
Chapter 4 - Protection Circuits ......................................... 65
Overall Block Diagram ................................................... 65
Overall System Description ........................................... 66
Protection Circuits Functional Description ........................ 66
Lamp Error (Continuous Lamp Red LED Flash) .......... 66
Temperature Error (2X Red Power/Standby Flash Pat-
tern) ........................................................................ 66
Lamp Cover Error (3X Power/Standby Red LED Flash
Pattern) .................................................................. 67
Fan Stopped (4X Power/Standby Red LED Flash Pat-
tern) ........................................................................ 67
Lamp Driver Error (5X Power/Standby Red LED Flash
Pattern) .................................................................. 67
Low B Error (6X Power/Standby Red LED Flash Pattern)
67
Audio Error (7X Power/Standby Red LED Flash Pattern)
67
Troubleshooting Flowcharts ........................................... 69
Troubleshooting Flowchart Step Descriptions ................... 73
Lamp Error (Lamp LED) .............................................. 73
Temperature Error (2X) ................................................ 73
Lamp Cover/Plug Error (3X) ........................................ 74
Fan Error (4X) .............................................................. 75
Lamp Drive Error ( 5X) (aka Lamp Power Supply Block)
76
Low B+ Error (6X) ........................................................ 77
TVP-21
Audio Output Error (7X) ............................................... 78
Panel Error (9X) ........................................................... 78
Chapter 5 - Video Processing System ............................. 80
Overall Block Diagram ................................................... 80
Overall System Description ........................................... 81
Video Circuits Functional Description ................................ 82
Troubleshooting Flowcharts ........................................... 84
Troubleshooting Flowchart Step Descriptions ................... 87
No Video ...................................................................... 87
Video Distortion ........................................................... 91
Optical Block ................................................................ 92
Chapter 6 - Audio Processing System ............................. 93
Overall Block Diagram ................................................... 93
Overall System Description ........................................... 94
Troubleshooting Flowchart ............................................ 95
Troubleshooting Flowchart Step Descriptions ................... 96
Appendix ............................................................................. 98
ASU/DSU Assembly Part Numbers Per Serial Number 98
2005 SXRD Service Mode Options ............................... 99
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