Pulser Disassembly; Pulser Assembly - HP LOGIC PULSER 546A Operating And Service Manual

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Model 546A

Page 29

PULSER DISASSEMBLY

To disassemble the Pulser refer to Figure 14 and proceed as follows:

With fingers, unscrew (ccw) the Pulser tip (MP1).

Remove indicator window (MP2). Note position of slots inside window for reference when

pulser is to be reassembled. If window has a protruding rear stud, skip to step d.

With Pulser tip, carefully remove retainer ring (MP3).

Slide bottom shell (MPS) off the Pulser.

lift top shell (MP4) off the Pulser.

PULSER ASSEMBLY

Pulser assembly is essentially the reverse of the above disassembly procedure.

CAUTION

BE CAREFUL WHEN REPLACING PARTS ON THE FRAGILE PRINTED-

CIRCUIT BOARD. EXCESS HEAT CAN RUIN THE BOARD. USE A LOW

WATIAGE

(~25

WATIS) IRON AND APPLY THE MINIMUM HEAT

NECESSARY TO UNSOLDER THE LEADS.

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