Crt Pcb Removal - Zeiss humphrey HFA II-i series Field Service Manual

Parts Removal/Replacement

3.11 CRT PCB Removal

1) Remove the operator panel assembly (3.4).
2) Carefully discharge the CRT high voltage to ground and disconnect the high voltage
lead from the CRT.
3) Disconnect:
the yoke connector from the CRT PCB.
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the connector on the end of the CRT neck.
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4) Release and remove the CRT PCB from its four plastic standoffs.
Replacement Notes:
The CRT anode lead must be routed over the top of the CRT neck. If the lead passes
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under the neck of the CRT, it lays next to the bowl and the electrostatic field around
the lead will attract dust to the inside of the bowl.
Follow-up Checks/Adjustments:
See Table 3-1.
Field Service Guide
Humphrey Field Analyzer II - i
Confidential and Proprietary
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