IBM 5410 Maintenance Manual page 36

Processing unit
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1-30
(1/71)
LOGIC PAGE PREFIXES
Prefix-FEALD
Al
AV
CR
FG
GC
GK
KA
KB
KC
KO
KE
KG
KL
KM
KY
MA
MC
MD
MO
MM
PA
PB
PC
RA
RN
WA
WB
ws
YB
YE
A1
FB
FC
FD
FE
WM
WP
WN
FP
Circuits
Card socket I isti ng
ALU
Use meter control
MFCU box
Printer keyboard controls
Keyboard service
25 MHz oscillator
Display and check
Clock controls
Cycle controls
Channel in
Register controls
Base LSR controls
Interrupt 1 to 4
ALU controls
Base LSR and SAR low
Data bus out-bank 2
In phase terminated TLD's
Socket listing
Main storage
CE mode and toggle switches
Drum indicators
Display selector drum
A and B registers
Op and O registers
Cable page
Channel 1 out exit lines
CPU to storage I ines
Printer box
Voltage service
Socket listing
MFCU controls
DBO and command control (MFCU)
DBI and MFCU data registers
Power drivers
MFCU box
Channel and attachment interface iprinter)
Channel and attachment interface (MFCU)
Printer controls
Figure 1-29. FEALD Page Prefixes

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