Figure 10-21. Vco And Pll (Mdc1200 And Qcii) Schematic Diagram - Motorola P100 Series Detailed Service Manual

Circuit Board/Schematic Diagram and Parts List (VHF: 136–174 MHz)
+5V
KRA305
Q705
C538 C539
10nF 10uF/16V(A)
VCO_OUT(RX)
E
Q503
KRC404
TX_EN1
C447
5pF
VCO_OUT(TX)
C731 C730
4pF 4pF
R715
100R
L709
C747
47nH
33P
PLL_CLK
C748
PLL_DATA
0.1uF
PLL_STB
Q711
KRA304 R718
+3.3V PLL_LD 20K
R729 R719
R753 R752 R751
1K
100K
1K 1K 1K
+3.3V
R720 270R
C755
R730
0.1uF(K)
33K
R721 270R
PLL_PS
R722
22K
GND
9 10 11 12 13 14 15 16 C750
0.1uF
R732 U701
10K MB15E03L
8 7 6 5 4 3 2 1
R731
10R
C738
C756
7pF
1nF
3.3V
C741
0.1uF
R733
0R
R734
12.8MHz VCXO
10R
4 3
+5V VCC OUT
C740 C734
C739
2
1 20pF
0.1uF 1nF VCON GND
FL701
U502-B GND
NJM324
5
1/2VCC 7
6
C515 R506
47K(TH)
10K
0.1uF
RT502
R503 R522
R504
100K
30K
47K
R505 C516
10K 10uF / 16V(A)
+5V
RX_B+ Q304
C320 KRA305
10uF/16V(A)
Q305
C319
C
KRC404
10nF
B
RX_EN
E
C380
C343 C344
470pF
0.1u
470pF
R701
R702
L701
100R C702
3K(1%)
100nH
1nF
C701
22uF / 10V(A)
Q701
2SC4226
C728
R703
10pF
C705
10K(1%)
Q702 6pF
C710
2SC4226
TZY02 10pF
C704
Q706
470pF C706 C711
C709
KRA305 R706 10pF
10pF 33pF
47R
L703
CR701
C
28116TL KDV300E
R704
10K(1%)
L704
C707
B C714
1uH(1608)
27pF
C715 1nF
22uF / 10V(A)
R705
180R
C712
470pF
L708 R711
220nH
100K
R707
Q703 C722
4.7K(1%)
2SC4226 TZY02 10pF
C729
3pF L705
C723
C721 C724
C717
R708 3pF 2.7uH(1608)
12pF 12pF 56pF
12K(1%)
L706
Q704
2SC4226 30146TL
C716 CR703 C725
470pF 470pF
KDV300E
R709
R714 C718
12K(1%) C726
100R 12pF
6pF
L707 R713
C727
1uH(1608) C719
10K 3pF
27pF R712
R710
100K CR702
180R KDV300E
SH101
TX_AUDIO_AND_SUB_TONE
C746
20P
+10V
R717
R716 56R
C749
680R
1uF(1608)
Q708
Q707
KTA2014
KTC4075 R740 R727
R728
2.7K
1.8K 2.7K
Q709 Q710 R726
KTA2014 KTC4075
2.4K
C752 C753
C754
0.1uF(K) 47nF(3216) 47nF(3216)
C751
1uF / 35V
R723 R725
1.2K R724
220R
820R
SH102

Figure 10-21. VCO and PLL (MDC1200 and QCII) Schematic Diagram

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