GE Medical Systems LOGIQ ?200, Руководство по обслуживанию, Страница: 128 / 212

GE MEDICAL SYSTEMS
LOGIQ
α
200 SERVICE MANUAL
2138853
6–44 RENEWAL PARTS
REV 5
6–2–17 Key Sheet Assy (FRU No. 211)
Time Required
25 Minutes
Tool Required
Screw Driver, Hexagonal Wrench, Boxer(5mm).
Procedure
Refer to ILLUSTRATION 6–23.
1.
Turn OFF the system.
2. Remove the Keyboard assy. Refer to 6–2–10.
3. Pull out the TGC knobs. Refer to 6–2–15.
4. Using the hexagonial wrench, remove the three Encoder knobs. Refer to 6–2–13.
5. Remove the Freeze/Record key. Refer to 6–2–14.
6. Disconnect five connectors (CN1–CN5).
7. Unscrew 4 screws (16–19) and disconnect the connector (CN6) in the the circuit board A from the
circuit board B.
8. Using the boxer (5mm), unscrew four studs (ST1–ST4) .
9. Unscrew fifteen screws (1–15) and remove the circuit board B from the keyboard bracket.
10. Unscrew eleven screws (20–31) and one knob (ST5) and carefully (not to up side down the
keyboard bracket) lift the keyboard bracket from the key sheet assy.