Abbott CELL-DYN 3000 - IP - 20 Alarm 4 (u) Rack Number Misread, 4 of 6

28 Oct
1997 20:45
CELL-DYN
®
3/35 Sample Loader TS Guide 9140234B-June 1997
TROUBLESHOOTING
IP - 20 Alarm 4 (u) Rack Number Misread, 4 of 6
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IP - 20 Alarm 4 (u) Rack Number Misread, 4 of 6
W ith P5 Connected to
Barcode
Decoder Bd.
- Measure +12V and
-12V at Power Supply
(VP-1)
2
Using Old
Style Barcode
Reader with
Decoder Bd.
?
CH2
TXD Signal
≈
-11.0V Barcode
Beam OFF
≈
-8.0V Beam ON
(See Figure)
?
No
Replace CPU
Main Bd (PL-8.1;
See
Interrelationship
Matrix - Pg. 3-4)
No
Replace Barcode Reader (PL-5.5)
or Barcode Cable (PL-8.10)
(See Interrelationship Matrix - Pg. 3-4)
2A
Yes
Yes
SL-261
CH2CH1
RXD
TXD
GND
DTR
Laser Beam
ON OFF
≈
- 8.0V
≈
- 10.0V
≈
- 8.0V
≈
- 11.0V
≈
- 6.0V
≈
- 8.0V
≈ +
11.5V
≈ +
11.5V
0.0V 0.0V
[CE MARK]
[NON- CE
MARK]