B Power Supply Board Assembly - Welch Allyn Micro Tymp 2 Service Manual

NOTE: WEAR ESD WRIST STRAP WHILE PERFORMING THE FOLLOWING OPERATIONS.
B POWER SUPPLY BOARD ( TOP BOARD ) ASSEMBLY
B 1. REMOVE BATTERY COVER.
FOLLOW INSTRUCTIONS IN MICROTYMP 2 OPERATING INSTRUCTIONS
TO REMOVE BATTERY COVER AND BATTERY. IT IS NOT NECESSARY
TO REMOVE THE FRONT HOUSING ASSEMBLY FOR POWER SUPPLY
BOARD REPLACEMENT.
B 2. DISCONNECT TUBING FROM TOP BOARD.
REMOVE TUBING FROM MOTOR/PUMP ASSEMBLY.
REMOVE TUBE FROM BALLAST.
B 3. UNPLUG FLEX CIRCUIT.
GRASP PUMP ASSEMBLY FLEX CIRCUIT WITH PIN STRAIGHTENING
PLIERS. PULL STRAIGHT UP TO REMOVE FLEX CIRCUIT FROM THE
POWER SUPPLY BOARD.
B 4. REMOVE POWER SUPPLY BOARD.
UNSCREW 4 PHILLIPS HEAD SCREWS AT THE FOUR CORNERS OF `
THE POWER SUPPLY BOARD. LIFT THE CONTACTS FROM THE CASE
AND LIFT POWER SUPPLY BOARD STRAIGHT UP.
B 4. REPLACE POWER SUPPLY BOARD.
ATTACH TUBING TO THE PUMP AND THE BALLAST. REFER TO TUBING
ROUTING DIAGRAM ON DRAWING 236300. ALIGN BOARD OVER STAND-
OFFS WITH BATTERY HOLDER NEAR THE BOTTOM OF THE HANDLE.
SCREW THE BOARD TO THE STRAIN RELIEFS WITH TWO LONG
SCREWS AT THE BOTTOM OF THE BOARD, AND TWO SHORT SCREWS
AT THE TOP OF THE BOARD.
B 5. PLUG IN FLEX CIRCUIT.
PLUG FLEX CIRCUIT INTO BOARD USING PIN STRAIGHTENING PLIERS
OR FINGERS. IF THE TWO FIBER SEPARATORS BECOME LOOSE, RE-
CONNECT THEM IN THEIR ORIGINAL POSITION (REFER TO ASSEMBLY
DRAWING) WITH LOCTITE BLACK MAX ADHESIVE M-30341.
B 6. CALIBRATE HANDLE WITH CALVIN.
REFER TO SECTION 6 FOR CALVIN PROCEDURE. UPON SUCCESS-
FUL CALIBRATION AND TEST, PLACE A DROP OF BLACK MAX tm
ADHESIVE M-30341 BETWEEN THE FRONT HOUSING AND THE FIBER
STRIPS. REPLACE BATTERY AND BATTERY COVER.
SCREW BATTERY COVER IN PLACE.
NOTES:________________________________________________________________________
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REPLACE POWER SUPPLY BOARD
END POWER SUPPLY BOARD REPLACEMENT
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