EDAN SE-1200 Express - Page 66

SE-1200 Series Electrocardiograph Service Manual Electrocardiograph Disassembly
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① J2 -- connected to the speaker
Pin
Description
1
Signal port of audio
2
GND (When the device is turned on)
② J25 -- connected to SE-1200 key board
Pin
Description
4, 11, 19, 22, 25, 28, 30
GND
1, 2, 3, 5, 6, 7, 8, 9
Signal port of LCD
10, 12, 27, 29
DVcc+5V
26
Turn off by software
21
Mains supply
23
Recharge voltage detecting
18
Turn on
14
Vee+20V
24
Recharging Lock
15, 17
Data transmitting
③ J28 -- connected to SE-1200 Express key board
Pin
Description
3, 4, 7, 8, 11, 14, 27, 29, 36
GND
5, 6, 9, 10, 12, 13, 15, 16
Signal port of LCD
1, 2
VDD+3V
23, 25
DVcc+5V
31, 33
DVcc+12V
21
Turn off by software
26
Mains supply
28
Recharge voltage detecting
32
Turn on
34
LCD Turnoff detecting