SE-1200 Series Electrocardiograph Service Manual Electrocardiograph Disassembly
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3) Disassembly Procedures of the Upper Unit (SE-1200 Express)
Disassemble the upper unit in the following sequence: display screen assembly -> keyboard
assembly -> indicator assembly -> recorder casing -> upper casing.
Remove the four groups of fixing bars and the cross recessed pan head cap screws , and
then the display screen assembly can be dismantled from the upper casing ⑤. Remove the two
cross recessed pan head screws ⑨, and then the inverted transformer of the display screen ⑧ can
be dismantled. Remove the fifteen cross recessed pan head self-tapping screws ①, and then the
keyboard PCB ② and the silicone keyboard ③ can be dismantled from the upper casing ⑤.
Remove the two cross recessed pan head self-tapping screws ①, and then the indicator board ⑦
and the indicator cover ⑥ can be dismantled from the upper casing ⑤. Remove the screws
connecting the upper casing and the recorder casing, and then the recorder casing ④ can be
dismantled from the upper casing ⑤.
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