Dräger Evita 4 - Test Points on the Power Supply PCB

5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions Page 44
For internal use only. Copyright reserved. GBR5664500T055664800.fm 18.03.99
Dräger Medizintechnik
D
6.4 Test Points on the Power Supply PCB
All voltages are measured at test point DGND. If the board is removed and the 5 V supply is
connected, you cannot measure the voltage at test point 3. If you want to measure the voltage
at test point 3, you must install a 1-KΩ resistor between pin 1 and pin 8 of the P4 connector.
Fig. 24: Components mounting diagram of the Power Supply PCB
Test points (Andros PCB) X6 (Dräger PCB)
Test point Assignment Pin Assignment
1 DGND 1 TTL-TXD (not assignd)
2+15V ±0,75V2 TTL-RXD
3 +15 V ±0,75 V (switched) 3 /
5
+8,5 V ±0,5 V
4DGND
6 –15V ±0,75V 5 +5V
7 +5V ±0,25V 6 8V-ON-OFF
8 on /off +15 V 7 ON-OFF
9 TTL-RXD 8 +15 V
10 TTL-TXD 9 –15 V
10 +8 V
11 OUT- A
11
1
1
TP1
TP5
TP10
TP3
TP2
TP8
TP4
TP6
J1
J2
P2P4
W1
TP9
TP7
1A
1B
1
1
X1
X3
X5
X2
1
X6
1
Andros PCB
Dräger PCB