Fukuda Denshi VaSera VS-1500, Service Manual

Page: 184 / 216

Chapter 10 Part Location Diagram and Checkpoints
(2) Body signals
1. ECG
Check the difference in input between each
electrode and F (right leg) on each AD
converter.
Input Signals Check site
R ‐ F IC81 ， Pin 1
L ‐ F IC71 ， Pin 1
F IC86
，
Pin 2
C1
‐
F IC73
，
Pin 1
C2 ‐ F IC70 ， Pin 1
C3 ‐ F IC82 ， Pin 1
C4
‐
F IC72
，
Pin 1
C5
‐
F IC83
，
Pin 1
C6 ‐ F IC84 ， Pin 1
2. PCG PWV characteristics (PCG_PWV)
Check voltage at TP2.
Use C634 or R868 as virtual ground.
（☞ 10.1.1.A4 ）
C
530
TP2
Confidential Copying Prohibited
10-9
3. PCG L characteristics (PCG_L)
Check voltage at TP3.
Use C634 or R868 as virtual ground.
（☞
10.1.1.A4
）
4. Pulse wave 1 (PW0)
Check voltage at TP4.
Use C634 or R868 as virtual ground.
（☞
10.1.1.B4
）
5. Pulse wave 2 (PW1)
Check voltage at TP1.
Use C634 or R868 as virtual ground.
（☞
10.1.1.A4
）
C634
C6
2
8
P25F
R
868
P25F
TP3
TP4
C
534
TP1