Motorola MCS 2000 Service Instructions Manual page 166

Chapter 10: Digrams and Parts Lists
A+
VCC
D0720
Y-GR
D0650 R0666
C0689 R0660
10K
.01uF Y-GR
10K
D0723
Y-GR
D0651
Y-GR
R0700
D0724
Q0650 R0671
Y-GR
3906 10K
D0652
10K
Y-GR
D0725
Y-GR
R0672
R0743
6.8K
10K
R0748
R0652 R0653 R0747
1K
1.5K 1.5K 1K
R0673
10K
R0658
Q0651 R0674
10K
10K
C0652 R0659
.01uF 10K
R0675
10K
R0661
Q0652
10K
C0688
R0662
.01uF
10K
68P81083C20-D
H0650
LCD 1_LINE_DISP
U0651
LC7985
R0685
100K
DATABUS(7:0)
VCC
R0745
10K
C0668
R0667 R0668 R0669 R0670
0.1uF
10K 10K 10K 10K
VCC
S0650 S0652 S0653
C0670 51 18
SCLK RESET
10uF 52 TD 0 19
IRQ
8 16
VRH OSC1
S0655 7 VRL 17
OSC2
20 22
PLMA TCAP1
21 23
PLMB TCAP2
40 VPP1 50
RDI
39 PB0
38 PB1 14
PD0
37 PB2 13
PD1
S0660 36 PB3 12
PD2
35 PB4 11
PD3
34 PB5 9
PD4
33 PB6 5
PD5
32 PB7 4
PD6
3
PD7
49 PC0
48 31 0
PC1 PA0
S0665 S0667 S0668 47 PC2 30 1
PA1
46 PC3 29 2
PA2
45 PC4 28
PA3 3
44 PC5 27 4
PA4
43 PC6 26 5
PA5
42 PC7 25 6
PA6
24
PA7 7
2 TCMP1
S0670 S0671 S0672 S0673 S0674
1 TCMP2
6 NC1
15 NC2
U0653
MC68HC05B6
VCC
1 2 3 4 5
35
D
31
LOAD
32
CP
VCC
34
M
C0669
0.1uF
TP3
VCC
R0707
TP1
6.8K
LCD BIAS
R0708
6.8K
R0709
6.8K
TP2
R0710
6.8K
OSC FREQ
R0686
1MEG
R0711
VCC
6.8K
Y0650
C0664 C0665
33pF
33pF R0753 VCC
R0752
100K 100K
VCC VCC VCC VCC
TAB1 5
R0741 R0693 R0696
R0692 R0694
100K 4.7K 4.7K 4.7K
4
TAB
R0695
10K
VCC
R0751
R0750
75K 100K
8
TAB3
7
200K TAB2
6
TAB1
5
R0746 TAB
10K
C0687
R0742 R0698 R0699
4.7uF 560K
NTC M10 560K
6 7 8 9 10 11 12 13 14 15
VCC
C0671
U0655
SCI7661M14
4.7uF
C0672
1
CAP1P
13 OSC1 2 4.7uF
R0715
C0683 R0712 CAP1M
12 OSC2 3
560K CAP2P
0.1uF
15K 4
CAP2M
10 RV 5
TC1
9 VREG 6
TC2
11 8
POFF VOUT
R0734
330
R0713
15K
R0714
75K
Q0666
U0656-1
MC33072
C0673
4 3
4.7uF 1
2
8
SW_B+
R0735
VCC
75K
R0718
R0736
R0720
100K
10K
R0716
10K
6 4
R0719
7
Q0660
R0717
5
10K
8
10K
U0656-2
SW_B+
MC33072
16 MAEPF-28090-O
Figure 10-6. Control Head Model II SChematic Diagram - 1 of 2
10-18
A+
R0740
10K
Q0667
MJD210
R0737
10K
C0681
R0738 R0739
0.1uF
10 10
10K
December 6, 2004