Fluke PM6685 - Page 77

Display & Keyboard, PCB 2
Drawings & Diagrams 8-15
MAIN BOARD
V0
H0
H1
H2
V1 V2 V3 V4 V5 V6 V7
12
12
4
4
6
6
2
2
10
10
8
8
9
9
7
7
1
1
BP0
BP0
S0
S0
S3
S3
S7
S7
S11
S11
S16
S16
S21
S21
S25
S25
S29
S29
S34
S34
S39
S39
S38
S38
S37
S37
S36
S36
S35
S35
S33
S33
S32
S32
S31
S31
S30
S30
S28
S28
S27
S27
S26
S26
S24
S24
S23
S23
S22
S22
S20
S20
S19
S19
S18
S18
S17
S17
S15
S15
S14
S14
S13
S13
S12
S12
S10
S10
S9
S9
S8
S8
S6
S6
S5
S5
S4
S4
S2
S2
S1
S1
BP1
BP1
BP2
BP2
BP3
BP3
3
3
13
13
14
14
18
18
22
22
27
27
31
31
34
34
39
39
44
44
48
48
52
52
56
56
55
55
54
54
53
53
51
51
50
50
49
49
47
47
46
46
45
45
43
43
42
42
41
41
40
40
38
38
37
37
36
36
35
35
33
33
32
32
30
30
29
29
28
28
26
26
25
25
24
24
23
23
21
21
20
20
19
19
17
17
16
16
15
15
19 P204
21 P204
23 P204 25 P204
27 P204 29 P204
31 P204
33 P204
MAIN BOARD
3
5
7
P204
P204
P204
P204
P204
P204
P204
P204
P204
P204
P204
P204
P204
P204
P204
P204
P204
EXT REF
S201
CHECK
S202
MEAS RESTART
S209
DISP HOLD
S210
<FUNCTION
S216
STAND-
BY IND
GATE
IND
SCL
SDA
ON
ON
S222
R204
10
R205
10
R206
10
D201
D202
CQV13-6
YELLOW
RED
HLMP-K150
R207
10
LOCAL/
PRESET
BACK-
LIGHT
TEMP
COMP
+5V
GND
NC
+5V
+5V
11,7,8,9 5,10
511,7,8,9,10
+5V
+5V
+5V
+5V +5V
C202
10n
C201
10n
IC TYPE
BACKLIGHT
D203
DL100
U201 PCF8576
PCF8576
PCF8576
PCF8576
U202
GND
SYNC
SYNC
DISPDR
DISPDR
VLCD
VLCD
CLK
CLK
OSC
SCL
SCL
SDA
SDA
SA0
SA0
A1
A1
A0
A0
A2
A2
OSC
R201
220k
U201
U202
LOCAL/PRESET
S224
STAND-
BY
STAND-BY
S223
U+12V
FUNCTION>
S217
MEAS TIME
S218
MENU
S219
AUX MENU
S220
SINGLE
S221
NULL/OFFSET
S211
BLANK DIGITS
S212
DATA ENTRY UP
S213
DATA ENTRY DN
S214
ENTER
S215
FILTER
S203
IMP
S204
TRIG LVL
S205
AUTO
S206
<SENS
S207
SENS>
S208
28
32
36
35
22
24
26
38
18
20
37
21039
1 4 6 12 14 16 30
89111315173034
E201
82 78 74 70 66 60 58 55 52 49 46 44 43
71013141822 27 323639403837353433313029282625242321201917161512119865432141 42
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