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Technical Product Manual
Fault analysis and repairs 1318
7 Wiring diagrams, fault analysis
TU00-1318-0200302 © Siemens VDO Trading GmbH Section 7 7–17
Section 7: Wiring diagrams, fault analysis • Edition 12/2005
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 1 Component 2
v = 0 km/h v = 60 km/h v = 0 km/h v = 60 km/h
Clockwork
mechanism defective
M / M1
v board
K
Clockwork
mechanism
Flat cable
23 +
24 +
(4) ((8))
(5) ((10))
0 V ...> 3.3 V
imp
0 V ...> 3.3 V
imp
Connect measuring device between the two coil connections, (MP1, MP2 or 23, 24).
Measuring value: 1.5...2 kΩ (4) (5) or ((8)) ((10))
Faulty measuring value. Replace
clockwork mechanism.
Illumination
defective
M / M1
v board
Check lamp holder and contact.
H 1
Illumination
Flat cable
25 +
22 -
(6) ((12))
(3) ((6))
12 V 24 V
(on lamp holder)
24 V unit: 25Ω (fitted) 52 Ω (removed)
12 V unit: 10 Ω (fitted) 12 Ω (removed)
Faulty measuring value. Replace lamp.
Measuring value correct. Replace flat
cable.
H2 warning LED
defective
M / M1
v board
H
Lamp plate
Flat cable
27 + (8) ((16))
0 V 11 V 0 V 13.5 V
see component 2 troubleshooting
Faulty measuring value. Check contact
carrier or replace LED.
G
Contact carrier
wtgn 19 +
0 V 11 V 0 V
23.5 V
(v max.)
wtgn 18 + 11 V 23.5 V
H3 warning LED
defective
M / M1
v board
H Lamp plate
F1
F2
Also make a note of components A, E, F
.
Flat cable
21 -
26 +
(2) ((4))
(7) ((14))
Cover open
Cover closed
8 V
0 V
see component 2 troubleshooting
contact set
I Cover contact
F2
Flat cable
20 + (1) ((2))
7.2 ... 8 V
0 V
see component 2 troubleshooting
Cover contact I, lamp plate
flat cable
I Cover contact
H Lamp plate
F2
11 + 8 V Connect measuring device between points 10 and 11.
Tachograph chart inserted: 0 Ω
Tachograph chart not inserted: : Ω
10 + Chart not inserted
Chart inserted
8 V
0 V
Faulty speed
display
M / M1
v board
C
v DC motor
bk 10 +
r 11 +
0 V 2.7 ... 3.4V 0 V 2.7 ... 3.4V
Remove connector. Measuring value between wires r and bk: 50 Ω. (+ 12 %)
From 05.97: 30 Ω
Faulty measuring value. Replace DC
motor.
B
Potentiometer
Speed
p 7 + 2.3 V Remove connector. Measuring value between p and wt wires: 5 kΩ .
Measuring value between wt and wtr wires: 200 Ω - 5 kΩ
The resistance value must increase and decrease steadily when turning the stylus
coupling slowly.
Faulty measuring value.
Replace frame and integral unit.
wtr 8 + 5 V 4.3 V 5.7 V 4.3 V
wt 9 +
5.7 V
D
I/O socket see component 2
Remove connector. Plug jack plug into test socket.
Measuring value between pink wire and jack plug front part: 0 Ω.
Measuring value between white wire and jack plug back part: 0 Ω.
L
Coding switch
see component 2
Measuring device negative pole at point 28. Measuring value between points 29 and 38
if switch set to "ON": 0 Ω. Measuring value if switch set to "OFF": > 1.5 kΩ.
Set 8000 imp/km again
after this measurement.
Faulty distance
recording
Faulty WT
recording
H3 warning LED
flashes.
M / M1
v board
A
WT motor
Knobs set to
ye 3 +
br 2 +
br 5 +
ye 4 +
11.2 V 6 V 23 V 12.2 V
Remove connector.
Measuring value between points 1 and 2 or 3 and measuring value between points 6 and
4 or 5: 150 Ω or 180 Ω (with 12 V units)
700 Ω (with 24 V units)
Lug missing / loose
gn (bl) 1 +
gn (bl) 6 +
11.2 V (bl) 23.3 V (gn)
Voltage
control function
defective
M / M1
v board
E
Contact set
gn 14 - * Cover
gn 15 - * open
11.8 V 23.5 V
Remove connector. Connect measuring device between points 14 and 15 (gn wire).
Measuring value with cover closed: : Ω / 0 Ω
Faulty measuring value.
Adjust or replace contact set.
gn 14 - * closed 6.5 V 18 V
F
Carriage contact
gr 16 - *
gr 17 - *
11.8 V 23.5 V
see component 2 troubleshooting
Faulty measuring value.
Adjust or replace carriage contact..
Measuring value correct, replace v board
.
gr 16 - * 6.8 V (v max.) 18.5 V (v max.)
* Apply V potential on A1 tab connector for measuring device.
The 0 V measuring device potential must be applied to the A6 tab connector.
+ = Connect measuring device's positive cable. Measuring tolerance: ± 10 %
Measuring device: Multimeter –accuracy class 1.5 (>30.000 Ω /V)
= horizontal = vertical
= Visually check mechanical parts. = If defective, replace component 1 part. = Cover closed and tachograph charts missing
=
Visually check electrical cables, components, soldered
connections, conductors and plug contacts.
= Check ohmic resistance. = Cables may be interchanged.
=
Check gear engagement and that the gears from the DC motor to
the potentiometer are running freely.
= If defective, replace component 2 part. ( ) = 8 pin flat cable
= If defective, check or adjust the relevant components. = Tachograph chart(s) inserted (( )) = 16 pin flat cable
- 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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