Yokogawa µR20000 User Manual
Page 13
2-3
SM 04P02B01-01E
Troubleshooting
2
Action
Refer to
chapter 6
Description
Phenomenon
No.
Page
Item
Chec
k
Adjust
Replace
10 (Dot
Model)
Whether the recorder has started, carriage load,
- -
Printer carriage does not move.
abnormal noises, etc.
Carriage Motor Assembly
6-20
10
Dot Driver PCB
6-19
1
11 (Dot
Model)
Load check
-
-
Ribbon error message (Error: 960)
Whether the gears mesh correctly.
-
-
Ribbon Shift Motor Assembly
6-19 8
(Ribbon Swing Motor Assembly)
12 (Dot
Model)
Is ribbon cassette installed correctly?
- -
Ribbon does not feed.
Do the gears mesh correctly?
Ribbon Feed Motor Assembly
6-20
22
13 (Dot
Model)
Printed colors bleed.
Adjust the ink ribbon
-
-
14 (Dot
Model)
Adjust the recording position
- -
Trend recording not normal.
15 (Dot
Model)
Print quality poor
Adjusting the hysteresis
-
-
16 (Dot
Model)
Does the ribbon feed?
-
-
Does not print.
Does the Carriage Assembly wire dot head operate?
-
-
Carriage Assembly
6-20
24
Dot Driver PCB
6-19
1
17 Chart paper does not feed.
Is the chart installed correctly?
- -
Do the gears mesh correctly?
Chart Feed Motor Assembly
6-19
15
Pen/Dot Driver PCB
6-5, 19 1
18 Internal illumination dim.
Ajusting the brightness of the Internal light LED
-
-
LED Assembly
6-4, 18 2
19 Internal illumination does not turn
LED Assembly
6-4, 18 2
ON.
Display Assembly
6-4, 18 1
20 The measured value is not correct
Input section wiring
- -
Noise effects
21 Measured values fluctuate.
Is the Integral Time setting of the A/D converter correct?
- -
Noise effects
Scanner PCB
6-8
17
6-22
32,33
22 Voltage measurement is good, but
Is the Reference Junction Compensation setting
- -
temperature measurement is not
correct? Is the terminal cover installed?
correct. Input
Terminal
Assembly
(RJC
Board)
6-10
17
6-24
25,28
31,34
A/D Board PCB
6-8
16
6-22 29
2.2 Failures and Corrective Actions