Specifications
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
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Table 1- 9: Data storage specifications
Characteristic Description
Nonvolatile memory retention time, typical ≥ 5 years
Floppy disk 3.5 in floppy disk drive, 1.44 MB capacity
Hard di sk Removeable hard disk drive, ≥ 20 GB capacity
CD-RW CD-RW drive
Windows memory 1GB
Table 1- 10: Power source specifications
Characteristic Description
Power consum ption ≤600 Watts (900 VA)
Source vol tage and frequency 100 to 240 V 10%,50Hzto60Hz
115 V 10%, 400 Hz
CAT II
Fuse rating Either one of the following sizes can be used, each size requires a different fuse
cap. Both fuses must be the same type. Line and Neutral are fused.
0.25 in × 1.25 in size UL198G and CSA C22.2, No. 59, fast acting: 8 A, 250 V
(Tektronix part number 159-0046-00, Bussman ABC-8, Littelfuse 314008)
5mm× 20 mm size IEC127, sheet 1, fast acting “F”, high breaking capacity: 6.3 A, 250 V (Tektronix part
number 159-0381-00, Bussman GDA 6.3, Littelfuse 21606.3)