Directed Audio 6550 Service Manual Page 64
- Page / 74
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
- Model 515B 1
- Model 515C 1
- Revision History 3
- Guarantee 5
- Service Policy 6
- Contents 7
- Model 515B/C 10
- Service Manual Rev. 01 10
- Description 11
- Description 12
- Patient Safety 13
- Patient Safety 14
- Warnings 14
- Cautions 15
- Rev. 01 Model 515B/C 17
- Service Manual 17
- Summary of Operation 19
- Summary of Operation 20
- Adjusting Volume Levels 20
- Muting Alerts 20
- Contrast 20
- 2532/2725 Power Supply Board 21
- Main Board 22
- Sensor LED Drive Circuits 23
- Sensor Photodiode Return Path 23
- Front End Timing Signals 25
- Sensor Status Parameters 26
- AA1 AA0 Decode 27
- Microprocessor and Memory 28
- Decoding 28
- Microprocessor Supervisor 29
- System Output Ports 29
- Signal Line 30
- Graphics Display 31
- Maintenance 33
- EARLIER POWER ENTRY MODULE 34
- NEWER POWER ENTRY MODULE 34
- FUSE HOUSING 35
- FUSE ACCESS DOOR 35
- POWER ENTRY MODULE 35
- Maintenance 36
- Changing AC Mains Voltage 36
- Assembly Exchanges 39
- Changing System Software 39
- Troubleshooting 41
- Troubleshooting 42
- Functional Test 43
- SuperBright™ 8700 44
- Functional Test 46
- Electronic Tests 47
- Electronic Tests 48
- Accuracy Test 50
- POWER: ON 51
- SENSOR TYPE: 87XX 51
- SIGNAL ATTENUATION: 3 51
- SATURATION: 92 51
- Specifications 53
- Specifications 54
- Accesories 55
- Accesories 56
- Parts Lists 59
- Parts Lists 60
- 6550-01-00 Main Assy 60
- 2722-01 01 Main Board Assy 60
- 2724-01 01 Main Board Assy 63
- 6500-01-00 Main Assy 64
- 2721-01 01 Main Board Assy 64
- 2721-17-00 Main Board Subassy 64
- 2723-01 01 Main Board Assy 67
- 6376-01-00 Rear Panel Assy 69
- 6382-01-00 Power Harness Assy 70
- 6407-01-00 Top Cover Assy 70
- 6408-01 01 Bottom Cover Assy 70
- 6487-01 00 Rear Panel Assy 72
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