Welch Allyn Micro Tymp 1, Service Manual

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Section 5.1 Disassembly & Reassembly
Disassembly and Repair, Printer Charger
CAUTION: PRIOR TO DOING REPAIR WORK, UNPLUG POWER CORD, USE GROUNDING
MAT AND GROUNDING STRAP TO MINIMIZE SHOCK HAZARD AND REDUCE CHANCES
OF DAMAGE TO SENSITIVE ELECTRONIC COMPONENTS. (6 CMOS IN HANDLE AND 1
CMOS IN PRINTER CHARGER)
FIG. 5-1 OVERVIEW OF DISASSEMBLY
A REMOVE CIRCUIT BOARDS.
LAY UNIT ON ITS BACK AND UNSCREW 4 SCREWS FROM THE BOTTOM OF
THE PRINTER CHARGER. REMOVE BOTTOM PLATE. SEE FIG. 5-1 ABOVE.
A 2. REMOVE TOP HOUSING.
UNSCREW 3 SCREWS (SEE FIGURE BELOW) VISIBLE THROUGH OBLONG
SLOT. THESE HOLD THE TOP HOUSING TO THE PRINTER BOARD. UN-
SCREW THE SCREW HOLDING THE WIRE TO THE TOP HOUSING ASSEM-
BLY. PULL THE TOP HOUSING STRAIGHT UP.
NOTE: ALL STANDS BUILT PRIOR TO MARCH 1988 (SEE THE DATE ON THE BOT-
TOM OF THE PRINTER / CHARGER ), MUST HAVE THE TOP HOUSING AS-
SEMBLY REPLACED WITH THE NEW ASSEMBLY (#711605-501), WHICH
PREVENTS ELECTRO STATIC DISCHARGE DAMAGE.
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