IBM 2025 Maintenance Manual page 272

Processing unit
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External Facilities
2-14
Logout
1-115
PR-KB Mode
1-43
1400 Compatibility Feature
1-20
1400 Compatibility, 52- and 63-Character
Typebar Decode
1-74
1400 Defined Characters
1-27
1400, EBCDIC-to-BCD Translate Table 1-28
1400 Operation-Code Decode Table
1-28
1401 Emulator CSL Deck
2-2
1401/1460 and 1440 Compatibility
Features
1-126
1401/1460 Compatibility Features Auxiliary
Storage Map
1-20
1403
1-85
Addressing
2-16
Attachment, AN and HN Graphics for 1-88
Attachment Checks
1-116
Attachment Clock
4-10
Buffer Adjustment · .
4-12
Buff er Load Microloop
2-3
Checks
2-16
Coil Protect Check Bypass, Switch 3
{Location)
6-14
Command Byte Description
1-85
Commands
2-16
Connector Location
6-3
Control Panel {Location)
6-12
Control Panel {Open)
6-15
Controls {Right Side) {Locations)
6-14
Current Limit Switch {Location)
6-14
Delays
4-12
Diagnostic Conditions {PRD) 1
1-53
External Facilities
2-20 - 2-22
Mode
1-43
Mode {CPU to EXT)
1-53
Mode {EXT to CPU)
1-52
Power Group
5-1
Reference Chart
4-11
Resets
2-20
Restart Procedures
2-18
Signal {Cables)
6-3
Singleshots {Chart)
4-12
Use Meter
2-20
2311
1-116
{See Also DAC)
Connector Location
6-3
Disk Mode
1-43
Disk Mode {CPU to EXT)
1-49
Disk Mode {EXT to CPU)
1-46
Power Group
5-1
Read Clock Adjustment
4-9
Signal Cables {Location)
6-3
UCW Format
1-111
2311/DAC
1-104
Addressing
2-23
Error Conditions Table
2-26 - 2-28
Error Messages
2-26
Error Recovery Procedures
2-26
Identifier {ID)
1-109
Operation Code
No-Op Command
1-105
Recalibrate Command
l-105
Search Home Address Equal
Command
1-109
Seek Commands
1-106
Sense Command
1-106
Space Count Command
1-106
X-10
{7/69)
TIC Command
1-105
Read Count Command Codes
1-106
Read Data, Read Key Data, and Read
Count Key Data Command Codes
1-107
Read Home Address Command Codes
1-106
Read IPL Command Code
1-105
Read Track Descriptor Record {RO)
Command Codes
1-106
Search ID Command Codes
1-109
Sense Byte Summary
1-109
Set File Mask Command
1-105
Track Orientation
1-111, 2-24
Trac~
Orientation Field and Zero
State Summary
1-110
Write Data and Write Key and Data
Command Codes
1-108
Write Home Address Command Code
6-Byte Seek Commands
1-106
2540
1-116
{See Also Reader, Punch)
Addressing
2-29
Attachment Checks
Attachment Clock
Connector Location
External Facilities
Jam Removal
2-33
Power Group
5-1
Punch Mode
1-43
1-116
4-8
6-3
2-33 - 2-36
CPU to EXT
1-51
EXT to CPU
1-50
Punch-UCW Format
1-18
Reader
Row Image, Auxiliary Storage
Translate Table, Auxiliary
Storage--30XX
1-16
UCW Format
1-18
Reader Mode
1-44
CPU to EXT
1-59
EXT to CPU
1-58
Reader/Punch
1-15
1-108
1-15
Readout Area of Auxiliary Storage
{160 Bytes of Column Form)
1-15
Restarts from Error Conditions
2-29
Sense Indicator Bytes
1-17
2560
Connector Location
6-3
Feed Cells
4-13
Feed Scoping
4-13
Handload Routine
2-49, 2-50
Local Storage Zone and External Mode
{Model 20 Mode)
1-127
Power Group
Singleshots
4-13
2560 Mode
1-44
CPU to EXT
1-63
EXT to CPU
1-61

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