Welch Allyn Micro Tymp 2, Руководство по обслуживанию

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SECTION 4
MICRO TYMP 2 TROUBLESHOOTING
MODEL # 23641
PROBLEM CAUSE CORRECTIVE ACTION
Reads ‘NEEDS CAL’ Error(s) in register(s) Reset error register(s)
Does not power up Battery low voltage Recharge / replace battery
Flexcable at keypad board loose Reinsert flex cable at
keypad board
C16 shorted on PS board Check/replace C16 on
Power Supply board (PS)
Defective Master MCU (236537-546) Replace Master MCU
Defective Crystal (236542-1205) Replace crystal
Fuse blown (F1) Replace fuse
Broken connection Repair broken connection
at flex speaker
Defective speaker Replace defective speaker
Clogged probe tip Clean out clogged probe tip
Shorted capacitor Replace shorted capacitor
on MCU board on MCU board (.33uf)
Defective valve Replace valve
Defective seating of Reseat speaker, microphone
probe tip component or transducer
Defective probe tip Replace probe tip
Split or frayed silicone tube(s) Cut off frayed section of
tube or replace tube
Defective ADC (236535) (LTC) Replace ADC
(Do not use LTC type)
Broken motor wire Repair broken wire or solder
or solder joint at motor wire joint at motor wire
Cold solder joint at Repair cold solder joint at
optical interrupt optical interrupt
Drive belt off of motor pulley Put drive belt back on
motor pulley
Defective MCU board Replace MCU board
(236330-506)
Misinserted Flex Cable Reinsert Flex Cable
(Top PC Board)
Unit will not take
tymp (stays in
‘OPEN’ mode)
Fading checkerboard
when activated
Fails leak test –
shows leak when
attempting tymp
Causes equipment
failure on Calvin
testing (also causes
'NEEDS CAL' (Error
Code 08 02 08)
2