Schiller AT-101, Руководство по обслуживанию

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Page 59
Appendix 8
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Service Handbook Checklist 8.1
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8 Appendix
8.1 Checklist
Name of tester: Visa:
Device serial number: Software Version:
Customer: Date:
Reference/Testpoints OK False Remark
5.2.1 Internal Sight Control page 34
1. Plugs are properly in the socket and secured
2. All protective cable (green/yellow) are properly laid out and securely con-
nected to one the earth point (potential equalisation).
3. All Cables connection between the individual printer boards are not
crushed anywhere or lying on sharp parts (i.e. protective shields). If ca-
bles have to be lead passed a sharp part, it is important that they are pro-
tected by a special shield
4. Isolation foils and shields are built in correctly and are certainly not left out
or forgotten (see explosion drawings)
5. Check that no loose parts are inside the device by tipping the device, or
turning it upside down
5.2.2 External Sight Control page 34
1. Voltage selector is set correctly
2. Fuses according table (see page 45)
3. Safety labels are on the device and are readable
4. Mechanical condition of the device allows a further safe operation (cracks
in the shell, mains cable, etc.).
5. there is no soiling which could hamper the safety of the device.
5.2.3 Mains indicator LED test page 35
1. The mains indicator lamp (6) is always lit when the unit is connected to the
mains supply.
2. The relevant symbol is displayed on the LCD (7).
3. The mains indicator lamp (6) switches off and the symbol battery is dis-
played on the LCD (7).
5.2.4 Power Supply test page 35
1. Unloaded current (device switched off) 35...70 mA
2. Operating current (device switched on) 45...85 mA
5.2.5 Keyboard test page 35
1. Check the keyboard for mechanical damage. If any can be seen, the key-
board is to be replaced.
2. Check all function keys for their proper operation. An acoustic confirma-
tion appears whenever a function key is pressed.
5.2.6 LCD Screen test page 35
1. The contrast has to be variable from very dark to very light.
2. Visually check the screen for spots, or black fields. If such appear, the
LCD has to be replaced. The LCD has to be the same shade everywhere.
If one side is darker, the background lighting should be checked.