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7 Wiring diagrams, fault analysis
Section 7 7–18 © Siemens VDO Trading GmbH TU00-1318-0200302
Error Component 1 Component 2
Component 1 voltage check Troubleshooting Resistance check Component 2 Troubleshooting
Measurin
g point
colour
Conductor
no. ()
12 V unit 24 V unit
Component 1 Visual check Component 2 Component 2
v = 0 km/h v = 60 km/h v = 0 km/h v = 60 km/h
Driver change
function defective
[01]
H
v board
(this
measurement is
not needed with
EMC v boards)
A
knob
(coupling between
v board and stop
spring)
MP1
1 7.4 V 7.4 V Faulty measuring
values.
Replace v board.
Faulty measuring values.
Check coupling between v board and stop spring. Correct if necessary. Repeat
component 1 voltage check.
• 7.4 V 7.4 V
2 0.6 V 0.6 V
1 7.4 V 7.4 V
MP2
• 0.6 V 0.6 v
2 7.4 v 7.4 V
External
warning contact
defective. [09]
F / F1
v board
wtgn 3 +
wtgn 2 +
Connector A8 +
11.5 V
Switched: 11.5 V
23.5 V
Switched: 23,5 V
Faulty measuring value.
Adjust or replace contact
carrier.
Not switched: 0 V
Pulse output:
4 imp/m defective
[09]
Pulse outpu:t
faulty v pulse
F / F1
v board
Connector B8 +
0 V 3.2 V 0 V 3.2 V
Faulty measuring
values.
Replace v board.
Connector B7 +
Connector D3 +
0 V
0 V
1.8 V
1.8 V
0 V
0 V
1.8 V
1.8 V
Faulty measuring
values.
Replace v board.
Faulty stop
signal
[09]
F / F1
v board
Connector D8 +
0 V * 6.3 V 0 V * 6.3 V
Faulty measuring
values.
Replace v board.
Two level
additional stylus
defective
[45]
F / F1
v board
C
diode plate
+ U
B
to D1
tab
connector
+ U
B
to
D1 and D2 tab
connectors
+ U
B
to D1
tab
connector
+ U
B
to
D1 and D2 tab
connectors
Faulty measuring
values.
Replace v board.
Measuring values between wt and wtr wires:
12 V = 105 Ω.
24 V = 470 Ω
wt 4
wtr 5
p 6
0.8 V
0 V
12 V
12 V
0 V
12 v
0.8 V
0 V
24 V
24 V
0 V
24 V
Measuring values between p and wtr wires:
12 V = 105 Ω
24 V = 470 Ω
Automatic power off
function (after 36 hrs)
defective
[B 30]
F
v board
E
WT power off unit
Set knobs to .
Bridge points 14 and 15 on E board.
Use an insulated wire, length 20 cm, tinned ends, cross-section 0.75 mm
2
for this.
After about 7 seconds the motor (distance and time group) must stop.
Function not working properly.
Replace WT power off unit.
Faulty speed display
[B03 ... B .. (-)
switching]
F
v board
D
Two speed axle
plate
(-)
switching
(+)
switching
(-)
switching
(+)
switching Faulty measuring
values. Check gear
ratios.
Faulty measuring
values.
Replace v board.
If defective,
replace component 2 part.
D5
not used / 0
V
D5
not used / U
B
D5
not used / 0
V
D5
not used / U
B
[B07 ... B .. (+)
switching]
gn 7 11.5 V 11.5 V 23.2 V 23.2 V
10 + 3.3 V 4.4 V
A 0 V potential must be applied to the A6 tab connector for the measuring device. = Visually check mechanical parts. = If defective, check the relevant component.
- Fault analysis and repairs 1
- NEC Tachographs/ 1
- EC Tachographs 1318 1
- Table of contents 3
- Section 8 Lubrication charts 10
- List of illustrations 11
- Section 1 General notes 17
- 1 Contents 18
- 1 General notes 19
- 1.1 History - 1318 19
- 1.2 Preparing repairs 19
- 1.3 Repair hints 20
- 1.4 Workbench setup 21
- 2 Contents and assignment 24
- 2.2 Type plaque labelling 30
- 2.3 Removing front parts 31
- 2.3.2 Replacing dial glass 32
- 2.3.3 Lock cylinder 33
- 2.5.1 Speed indicator 36
- 2.5.2 RPM indicator 36
- 2.5.3 Clock hands 37
- 2.7 Flat cable 42
- 2.7.2 Fitting flat cable 43
- 2.8 n measuring system 46
- 2.8.7 Checking DC motor 50
- 2.9 Quartz mechanism 52
- 2.9.3 Replacing gears 53
- 2.9.5 Speed shaft 57
- 2.10 Cover contact 58
- 2.10.2 Checking cover contact 59
- 2.11.3 Fitting n stylus lever 62
- 2.12.2 Making auxiliary bezel 68
- 0.2 70
- 2.12.6 Fitting clock hands 71
- 2.12.8 Fitting bezel 72
- 2.13.1 Removing cover plate 73
- 2.13.2 Pulling out knobs 74
- 2.14 Distance recorder 75
- 2.15.1 Fitting knobs 78
- 2.15.1.2 Inserting knobs 79
- 2.15.2 Cover plate versions 80
- Section 2 2–59 81
- Cover plate Device type 81
- 2.15.3 Fitting cover plate 82
- 2.16.1 Fitting stylus guide 83
- 2.17.3 Separating plate 87
- 2.18.1 Replacing cover 88
- 10.85 mm (before 11.5 89
- 2.18.3 Replacing cover strap 90
- 3 Contents and assignment 94
- Removing and fitting housing 100
- 3.1 Housing – overall view 101
- 3.2 Removing hood 102
- 3.2.3 Removing fixing cap 103
- 3.2.4 Removing hood 103
- 3.3 Removing socket housing 104
- 3.5 v/ n board identification 106
- 3.6 v board 107
- 1318.71.400.03 110
- 1318.71.400.11 112
- 1318.71.400.12 112
- 318.71.800.10 113
- 3.7 n board 114
- 1318.0210.103.xxx 115
- /1318.71.300.xx 115
- 1318.71.300.xx 115
- 1318.71.900.10 116
- Technical Product Manual 117
- 3.8 Removing frame 118
- 3.8.3 Removing stylus unit 120
- *discontinued 122
- 3.8.5.1 Removing gears 125
- 3.8.5.2 Installing gears 126
- 3.9.1 Removing drive parts 129
- 3.9.2 Fitting stylus holder 129
- 3.10 Speed measuring system 134
- 3.10.3.1 Checking motor 137
- 3.10.4.1 Pull contacts 138
- 3.10.4.2 Fitting contacts 138
- 3.10.5 Speed measuring system 139
- 3.11 Distance/ WT motor 140
- Back until 09.87 141
- Front until 09.87 141
- 0.15 mm thick 145
- 3.14 Fitting frame plate 149
- Tension spring (12) on front 151
- 3.15.1 Replacing grip head 154
- 3.16.1 Fitting the frame 155
- 3.16.1.2 Installing frame 156
- 3.16.4 Fitting n board 158
- 3.16.5 Fitting v board 159
- Back of frame plate 160
- Driver 1 160
- Driver 2 160
- 3.16.7 fixing v and n boards 162
- 6 ± 0.25 164
- 3.17 Data output – data block 168
- Section 4 Checking and 169
- 4 Contents and assignment 170
- (from 01.02) 171
- 4.2.1 Checking speed stylus 172
- 1318-02, -04, -06 177
- 1 1900.1501.054.030 179
- 1 1900.1501.054.090 181
- Checking and adjusting 184
- 1 1900.1501.064.000 186
- 4.10 Function check 192
- Section 5 Sealing points 193
- 5 Contents and assignment 194
- 5.3 Fixing cap versions 196
- 5.4.1 Embossing seals 197
- 5.4.2 Fitting seal caps 198
- 5.4.3 Fitting bezel seal 198
- Sealing points 200
- Additional equipment 201
- 6 Contents and assignment 202
- 6.1.1 Recording widths 205
- 6.1.2 Repair hint 205
- 6 Additional equipment 208
- A1 (+) / A5 (-) 210
- 6.3.6 Checking stop signal 211
- 6.4.1 Function 212
- Level 1: Level 2 212
- 6.4.2 Control 213
- 6.4.4 Checking recording 214
- Section 6 6–15 215
- 1 Straight pin 2 Bearing 215
- 1 day unit: x = 24.5 mm 216
- 7-day unit: x = 28.5 mm 216
- 6.4.6 Clock generator 2154.02 217
- 6.4.6.2 Wiring diagram 218
- Section 6 6–19 219
- 12 V and 24 V 220
- RPM display 221
- 6.5.1 Adjusting 222
- 6.5.2 RPM constant label 222
- (connector D5) 223
- Section 7 Wiring diagrams 229
- 7.2 Colour codes 231
- EC and CH 242
- Bridge for checking only 244
- Bridge Bridge 244
- Lubrication charts 248
- 8 Lubrication charts 250
- 8.2 Distance counter 251
- 8.5 Frame: v measuring system 252
- Section 8 8–7 253
- Fig. 8-5 Front of frame 253
- Do not lubricate! 254
- 8.8 Frame: Driver 2 lever 255
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