Read Sharp DOS HOSPITALITY (serv.man44) Technical Bulletin online
2-1. Discontinuance of the CPU temperature detecting circuit (1).
1.Model Name:
UP-5700
2.General:
The redundant CPU temperature detecting circuit of the CPU PWB has been
discontinued.
3.Description:
Changed parts:
Ref. No.
Parts Code
Description
C2
VCKYTV1HB103K
Discontinued
C3
VCKYTV1HB103K
C4
VCKYTV1HF104Z
IC5
VHIKIA555F/-1
IC6
VHILM334S8/-1
R17
VRS-TS2AD202J
R18
VRS-TS2AD221J
There is no problem whether or not the parts listed above are packaged or not.
4.Action:
For production: From March 1998 production.
5.Other:
Attached supplementary documents: Circuit diagrams of the changed section.
2-2. Change carried out in the CPU PWB (2).
1.Model Name:
UP-5700
2.General:
An OS capacitor has been packaged in the 2.9 V power supply line of the CPU PWB.
In accordance with this, the redundant OS capacitor on the main PWB side has been
discontinued.
discontinued.
3.Description:
C18 (RC-EZ1572RC01) of the main PWB has been discontinued.
4.Action:
For field: No field action is necessary.
For production: From December 1997 production.
For production: From December 1997 production.
5.Other:
Attached supplementary documents: Circuit diagrams of the changed section, Figure 3.
2/11
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