IBM Document: NCR
06/97 Doc # NCR001
Page 3 of 3
Copyright International Business Machines, 1997
All rights reserved
Field Replaceable Units
Top Plates
Description
OEM Part
IBM Part
Platter Glass Window
497-0300058
20H7833
Plexiglass Window
497-0300220
20H7835
Cables
Description
OEM Part
IBM Part
IBM 4683 Interface Cable
497-0300400
20H7854
Indicator Reset Cable
497-0300887
20H7838
Load Cell CD To Main
003-0022869
22H4153
Scale Display Cable
497-0300777A
20H7852
Scale Interface Cable
497-0300207
20H7841
Video / Digital Board Cable
497-0300878
20H7847
Printed Circuit Boards
Description
OEM Part
IBM Part
Digital Board
497-0301692
20H7848
Display - Scale Board
497-0301070
20H7836
IC Chip, PCB Digital Board
006-2005205
22H4154
Interface Board
497-0300723
20H7850
Scale Board
497-0301486
20H7840
Video Board
497-0301675
20H7845
Assemblies
Description
OEM Part
IBM Part
Complete Unit 7870-2000
7870-2000
20H7760
Laser Cooling Fan Assembly
006-8600435
20H7844
Laser Diode Assembly
497-0300805
20H7846
Optics Assembly
497-0301601
20H7842
Scale Platter Without Glass
497-0301069
20H7832
Spinner Motor
250-0054218
20H7843
Tower Cabinet
497-0900797
20H7837
Miscellaneous
Description
OEM Part
IBM Part
Front Bezel
497-0300222
20H7834
Inner Platen Cover
497-0300998
20H7855
Load Cell
006-8600466
20H7839
Power Cord
006-1002021
20H7853
Power Supply
006-8700416
20H7851
Pullout Lift Handle
497-0301261
20H7856
Remote Pole Video Display
7870-7825
20H7857
Speaker
006-1010870
20H7849
LED Error Definitions
Power-On LED’s
# Green
Flashes -
Repeats
# Beeps
- then
Repeats
Description of
Errors
Replace
To Fix
1 - Yes
1 - Yes
7870 Ready
None
2 - Yes
2 - Yes
RAM Failure
Digital Board
3 - Yes
3 - Yes
Motor stays on
Video Board
4 - No
4 - No
No Daughter
Board Detected
Digital Brd. or
Daughter Brd or
Interface Cable
5 - Yes
5 - Yes
Wrong Motor
Speed
Spinner Motor
or Video Brd.
6 - No
6 - No
EEPROM Load
Failure
Digital Brd
7 - Yes
7 - Yes
No +/- 12V
Power Supply
8 - Yes
8 - Yes
Laser stays ON
Digital Brd. or
Video Brd.
10 - Yes
10 - Yes
ASIC Test Fail
Digital Brd
11 - Yes
11 - Yes
Laser stays
OFF
Digital Brd or
Video Brd or
Laser Diode
12 - Yes
12 - Yes
ROM Failure
Digital Brd
13 - Yes
13 - Yes
Video Turn
Around
Video Brd
Single Operational LED’s
# Green
Flashes -
Repeats
# Beeps
- then
Repeats
Description of
Errors
Replace
To Fix
3 - Yes
3 - Yes
Motor stays on
Video Board
5 - Yes
5 - Yes
Wrong Motor
Speed
Spinner Motor
or Video Brd.
8 - Yes
8 - Yes
Laser stays ON
Digital Brd. or
Video Brd.
11 - Yes
11 - Yes
Laser stays
OFF
Digital Brd or
Video Brd or
Laser Diode
Dual Operational LED’s
# Green
Flashes -
Repeats
# Red
Flashes-
Repeats
Description of
Errors
Replace
To Fix
1 - Yes
1 - Yes
Sleep Mode
Scan
Something
