Megger MIT510 - Page 25

AF008-02-1201
25
Number
Issue
Date
CN Number
6
1
7
2-
999
2
17-01-07
22933
Compiled
By:
S.Mynott
Date
Compiled:
08/08/06
MIT5XX/10XX
1
st
Used On:
SERVICE MANUAL
LcdAddr2
LcdAddr0
Com4
Com1
Com3
Com2
LcdAddr1
LcdData6
R178
10K
R179
10K
Q0
4
Q1
5
Q2
6
Q3
7
Q4
9
Q5
10
Q6
11
Q7
12
A0
1
A1
2
A2
3
DATA IN
13
RESET
15
ENABLE
14
GND
8
V+
16
IC15
74HC259
R192
330R
LcdBP[1..4]
LcdAddr0
LcdAddr2
R191
10K
0V
LcdAddr1
LcdData3
Q0
4
Q1
5
Q2
6
Q3
7
Q4
9
Q5
10
Q6
11
Q7
12
A0
1
A1
2
A2
3
DATA IN
13
RESET
15
ENABLE
14
GND
8
V+
16
IC2
74HC259
LcdAddr0
LcdAddr2
TP310
C8
10nF
TP311
LcdAddr1
LcdData7
TP312 TP313
TP318
1
2
3
PL11
TP319
SEG72
TP320 TP321
Q0
4
Q1
5
Q2
6
Q3
7
Q4
9
Q5
10
Q6
11
Q7
12
A0
1
A1
2
A2
3
DATA IN
13
RESET
15
ENABLE
14
GND
8
V+
16
IC16
74HC259
C66
100n
0V
5V
TP240
0V
C65
100n
SEG18 SEG17
TP238
TP234
TP233
TP235
TP236
R199 47K
R200 47K
R237 47K
MeterCoarse
Met erFine
LcdAddr[0..2]
R239 47K
R190
100K
R241 47K
R243 47K
R245 47K
R247 47K
R139
10K
SEG22
R249 47K
SEG20
SEG24
SEG17
SEG23
SEG18
SEG21
R251 47K
R138
10K
SEG19
R202 47K
R189 100K
R204 47K
R206 47K
R208 47K
R187
100K
R210 47K
0V
5V
R213 47K
0V
0V
LcdAddr2
0V
0V
0V
LcdData[0..8]
LcdAddr0
R253 47K
R236 47K
R188
100K
12VSwitched
0V
0V
0V
0V
LcdAddr1
0V
0V
0V
12VSwitched
5V
LcdData8
R285
0R
R215 47K
R238 47K
0V
5V
R255 47K
R240 47K
R257 47K
R242 47K
R259 47K
Q0
4
Q1
5
Q2
6
Q3
7
Q4
9
Q5
10
Q6
11
Q7
12
A0
1
A1
2
A2
3
DATA IN
13
RESET
15
ENABLE
14
GND
8
V+
16
IC17
74HC259
R244 47K
LcdData1
R261 47K
R246 47K
R263 47K
R248 47K
TP237
12VSwitched
R265 47K
R250 47K
TP72
R267 47K
R217 47K
TP322 TP323
R220 47K
TP324 TP325
R223 47K
TP326 TP327 TP328
R226 47K
TP329
TP239
R229 47K
C45
10nF
R201 47K
R231 47K
R233 47K
C44
10nF
C43
10nF
R235 47K
C42
10nF
C5
10nF
0V
SEG25
C6
10nF
SEG28
SEG32
SEG30
SEG26
SEG27
SEG29
C7
10nF
SEG31
C46
10nF
R203 47K
R205 47K
R207 47K
R209 47K
R252 47K
R212 47K
R214 47K
R254 47K
R256 47K
R258 47K
LcdAddr[0..2]
LcdLatchEnable
LcdData[0..8]
R260 47K
LcdLatchReset
R262 47K
R177
100K
R264 47K
R266 47K
R176 100K
R174
100K
R175
100K
R268 47K
SEG1
0V
SEG4
SEG3
SEG7
SEG6
SEG5
3
2
1
+
-
IC22-1
MCP602
1 per 75HC259
R269 47K
R270 47K
R271 47K
R272 47K
R273 47K
SEG2
R274 47K
SEG16
SEG9
SEG14
SEG15
SEG12
SEG13
SEG11
SEG10
SK6
SK7
(meter -)
(meter +)
R216 47K
4.75V
R219 47K
Components not fitted in model 10A.
R222 47K
R225 47K
TP73
R228 47K
TP74
R230 47K
TP75
LcdAddr0
R232 47K
R234 47K
N/F
TP294 TP295 TP296 TP297
TP302 TP303 TP304 TP305
4.75V
SEG48
SEG46
SEG41
SEG44
SEG45
SEG42
SEG43
SEG47
SEG57
SEG64
SEG62
SEG60
SEG61
SEG58
SEG59
SEG63
SEG56
SEG54
SEG49
SEG52
SEG53
SEG51
SEG50
SEG55
SEG68
SEG71
SEG67
SEG70
SEG69
0V
SEG65
SEG66
SEG38
SEG40
SEG36
SEG33
SEG34
SEG37
SEG39
SEG35
TP258 TP259 TP260 TP261
LcdAddr1
TP266 TP268 TP267 TP269
5
6
7
+
-
IC22-2
MCP602
8
4
V+
V-
IC22-3
MCP602
LcdBP1
LcdAddr2
8
4
V+
V-
IC24-3
MCP602
3
2
1
+
-
IC25-1
MCP602
8
4
V+
V-
IC25-3
MCP6 02
5
6
7
+
-
IC24-2
MCP602
5
6
7
+
-
IC25-2
MCP602
3
2
1
+
-
IC24-1
MCP602
+
C74
1uF
R275 10K
R276 10K
TP9 0
R277 10K
TP89
R278 10K
TP278
R279
10K
TP279 TP280 TP281
TP286
R280
10K
TP288 TP287
C69
100n
TP289
C70
100n
C71
25
100n
+
C72
1uF
25
+
C73
1uF
25
TP86
TP91
TP274 TP275 TP276 TP277
TP283 TP282 TP284 TP285
TP76
TP77
TR35
BCW32
4.75V
TR36
BCW32
R281
10K
R282
10K
TP87
TP92
TP88
TP85
TP262 TP263 TP264
TP84
TP265
TP271 TP270 TP272 TP273
0V
4.75V
5V
SEG2
SEG4
SEG1
SEG3
SEG7
SEG6
SEG5
SEG9
SEG8
SEG12
SEG11
SEG10
SEG15
SEG14
SEG13
TP290
SEG16
TP291 TP293 TP292
TP298 TP299 TP300 TP301
LcdLatchReset
4.75V
Q0
4
Q1
5
Q2
6
Q3
7
Q4
9
Q5
10
Q6
11
Q7
12
A0
1
A1
2
A2
3
DATA IN
13
RESET
15
ENABLE
14
GND
8
V+
16
IC5
74HC259
Com1
SEG55 SEG71 SEG70 SEG68 SEG69 SEG66 SEG67 SEG63 SEG64 SEG65 SEG60 SEG61 SEG62 SEG58 SEG59 SEG56 SEG57
Com3
R182
10K
Com4
R185
10K
LcdBP4
TP80
LcdBP3
LcdBP2
3
2
1
+
-
IC23-1
062
5
6
7
+
-
IC23-2
062
8
4
V+
V-
IC23-3
062
SEG20 SEG19 SEG23 SEG22 SEG21 SEG25 SEG24 SEG31 SEG32 SEG26 SEG28 SEG29 SEG30 SEG33 SEG27
0V
NC
1
NC
2
NC
3
S1
4
S2
5
S3
6
S4
7
S5
8
S6
9
S7
10
S8
11
S9
12
S10
13
S11
14
S12
15
S13
16
S14
17
S15
18
S16
19
S17
20
S18
21
S19
22
S20
23
S21
24
S22
25
S23
26
S24
27
S25
28
S26
29
S43
52
S42
51
S41
50
S40
49
S39
48
S38
47
S37
46
S36
45
S35
44
S34
43
NC
42
NC
41
NC
40
NC
39
NC
38
NC
37
S33
36
S32
35
S31
34
S30
33
S29
32
S28
31
S27
30
C2
83
C3
82
C4
81
S47
56
S48
57
S49
58
S50
59
S51
60
S52
61
S53
62
S54
63
S55
64
S56
65
S57
66
S58
67
S59
68
S60
69
S61
70
S62
71
S63
72
S64
73
S65
74
S66
75
S67
76
S68
77
S69
78
S70
79
S71
80
C1
84
S44
53
S45
54
S46
55
LC1
SEG48
SEG49
SEG45
SEG46
SEG47
SEG42
SEG43
SEG44
SEG50
SEG41
SEG51
SEG39
SEG40
TP306
SEG52
SEG37
SEG38
TP308 TP307
SEG35
SEG36
4.75V
TP309
SEG54 SEG53
SEG34
TP314 TP315 TP316 TP317
SEG8
Com4 Com3 Com2 Com1
LcdAddr0
R181
1K
LcdAddr1
LcdAddr2
Com2
LcdData0
0V
LcdLatchEnable
Nominal 2.25V
Nominal 1.25V
LcdAddr0
LcdAddr2
LcdAddr1
LcdData4
LcdBiasDisable
Q0
4
Q1
5
Q2
6
Q3
7
Q4
9
Q5
10
Q6
11
Q7
12
A0
1
A1
2
A2
3
DATA IN
13
RESET
15
ENABLE
14
GND
8
V+
16
IC13
74HC259
LcdAddr2
LcdAddr0
LcdAddr1
Meter (800R,
200uA f.s.d.)
Q0
4
Q1
5
Q2
6
Q3
7
Q4
9
Q5
10
Q6
11
Q7
12
A0
1
A1
2
A2
3
DATA IN
13
RESET
15
ENABLE
14
GND
8
V+
16
IC4
74HC259
LcdAddr0
LcdAddr2
4.75V
4.75V
4.75V
4.75V
4.75V
4.75V
4.75V
4.75V
4.75V
LcdAddr1
LcdData5
Q0
4
Q1
5
Q2
6
Q3
7
Q4
9
Q5
10
Q6
11
Q7
12
A0
1
A1
2
A2
3
DATA IN
13
RESET
15
ENABLE
14
GND
8
V+
16
IC14
74HC259
Components fitted in model 10A only.
LcdAddr0
LcdAddr2
LcdAddr1
LcdData2
Tit le
Size
Document Number
Date:
Sheet
of
MEG GE R L IMITE D
Archcliffe Road, Dover,
Kent, CT17 9EN, England
Issue Date CN No.Instrument:
Drawn By:
© MEGGER LIMITED
6270-299
Display PCB - Display
A3 3 8
Tuesday, March 16, 2004
MEG05/10, models -10, -20
James Patten 10 14-10-2005 22482
11 02-11-2005 22500
0V
Q0
4
Q1
5
Q2
6
Q3
7
Q4
9
Q5
10
Q6
11
Q7
12
A0
1
A1
2
A2
3
DATA IN
13
RESET
15
ENABLE
14
GND
8
V+
16
IC3
74HC259